1
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Ye Z, Mu Y, Van Duzen S, Ryser P. Root and shoot phenology, architecture, and organ properties: an integrated trait network among 44 herbaceous wetland species. New Phytol 2024. [PMID: 38600040 DOI: 10.1111/nph.19747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 03/24/2024] [Indexed: 04/12/2024]
Abstract
Integrating traits across above- and belowground organs offers comprehensive insights into plant ecology, but their various functions also increase model complexity. This study aimed to illuminate the interspecific pattern of whole-plant trait correlations through a network lens, including a detailed analysis of the root system. Using a network algorithm that allows individual traits to belong to multiple modules, we characterize interrelations among 19 traits, spanning both shoot and root phenology, architecture, morphology, and tissue properties of 44 species, mostly herbaceous monocots from Northern Ontario wetlands, grown in a common garden. The resulting trait network shows three distinct yet partially overlapping modules. Two major trait modules indicate constraints of plant size and form, and resource economics, respectively. These modules highlight the interdependence between shoot size, root architecture and porosity, and a shoot-root coordination in phenology and dry-matter content. A third module depicts leaf biomechanical adaptations specific to wetland graminoids. All three modules overlap on shoot height, suggesting multifaceted constraints of plant stature. In the network, individual-level traits showed significantly higher centrality than tissue-level traits do, demonstrating a hierarchical trait integration. The presented whole-plant, integrated network suggests that trait covariation is essentially function-driven rather than organ-specific.
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Affiliation(s)
- Ziqi Ye
- School of Natural Sciences, Laurentian University, 935 Ramsey Lake Road, Sudbury, ON, P3E 2C6, Canada
| | - Yanmei Mu
- Yanchi Research Station, School of Soil and Water Conservation, Beijing Forestry University, Beijing, 100083, China
| | - Shianne Van Duzen
- School of Natural Sciences, Laurentian University, 935 Ramsey Lake Road, Sudbury, ON, P3E 2C6, Canada
| | - Peter Ryser
- School of Natural Sciences, Laurentian University, 935 Ramsey Lake Road, Sudbury, ON, P3E 2C6, Canada
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2
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Tanaka N, Yoshida S, Islam MS, Yamazaki K, Fujiwara T, Ohmori Y. OsbZIP1 regulates phosphorus uptake and nitrogen utilization, contributing to improved yield. Plant J 2024; 118:159-170. [PMID: 38212943 DOI: 10.1111/tpj.16598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 12/06/2023] [Indexed: 01/13/2024]
Abstract
Increasing nutrient uptake and use efficiency in plants can contribute to improved crop yields and reduce the demand for fertilizers in crop production. In this study, we characterized a rice mutant, 88n which showed long roots under low nitrogen (N) or phosphorus (P) conditions. Low expression levels of N transporter genes were observed in 88n root, and total N concentration in 88n shoots were decreased, however, C concentrations and shoot dry weight in 88n were comparable to that in WT. Therefore, 88n showed high nitrogen utilization efficiency (NUtE). mRNA accumulation of Pi transporter genes was higher in 88n roots, and Pi concentration and uptake activity were higher in 88n than in WT. Therefore, 88n also showed high phosphorus uptake efficiency (PUpE). Molecular genetic analysis revealed that the causal gene of 88n phenotypes was OsbZIP1, a monocot-specific ortholog of the A. thaliana bZIP transcription factor HY5. Similar to the hy5 mutant, chlorophyll content in roots was decreased and root angle was shallower in 88n than in WT. Finally, we tested the yield of 88n in paddy fields over 3 years because 88n mutant plants showed higher PUpE and NUtE activity and different root architecture at the seedling stage. 88n showed large panicles and increased panicle weight/plant. Taken together, a mutation in OsbZIP1 could contribute to improved crop yields.
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Affiliation(s)
- Nobuhiro Tanaka
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba-shi, Japan
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Japan
| | - Saki Yoshida
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Japan
| | - Md Saiful Islam
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Japan
- Department of Soil Science, Patuakhali Science and Technology University, Dumki, Patuakhali, 8602, Bangladesh
| | - Kiyoshi Yamazaki
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Japan
| | - Toru Fujiwara
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Japan
| | - Yoshihiro Ohmori
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Japan
- Agricultural Bioinformatics Research Unit, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
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3
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Lan Y, Burca G, Yong JWH, Johansson E, Kuktaite R. New Insights into the Bio-Chemical Changes in Wheat Induced by Cd and Drought: What Can We Learn on Cd Stress Using Neutron Imaging? Plants (Basel) 2024; 13:554. [PMID: 38498534 PMCID: PMC10892926 DOI: 10.3390/plants13040554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 02/08/2024] [Accepted: 02/16/2024] [Indexed: 03/20/2024]
Abstract
Cadmium (Cd) and drought stresses are becoming dominant in a changing climate. This study explored the impact of Cd and Cd + drought stress on durum wheat grown in soil and sand at two Cd levels. The physiological parameters were studied using classical methods, while the root architecture was explored using non-invasive neutron computed tomography (NCT) for the first time. Under Cd + drought, all the gas exchange parameters were significantly affected, especially at 120 mg/kg Cd + drought. Elevated Cd was found in the sand-grown roots. We innovatively show the Cd stress impact on the wheat root volume and architecture, and the water distribution in the "root-growing media" was successfully visualized using NCT. Diverse and varying root architectures were observed for soil and sand under the Cd stress compared to the non-stress conditions, as revealed using NCT. The intrinsic structure of the growing medium was responsible for a variation in the water distribution pattern. This study demonstrated a pilot approach to use NCT for quantitative and in situ mapping of Cd stress on wheat roots and visualized the water dynamics in the rhizosphere. The physiological and NCT data provide valuable information to relate further to genetic information for the identification of Cd-resilient wheat varieties in the changing climate.
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Affiliation(s)
- Yuzhou Lan
- Department of Plant Breeding, The Swedish University of Agricultural Sciences, P.O. Box 190, SE-23422 Lomma, Sweden; (Y.L.); (E.J.)
| | - Genoveva Burca
- Diamond Light Source Ltd., Harwell Science and Innovation Campus, Didcot OX11 0DE, UK;
- ISIS Pulsed Neutron and Muon Source, Harwell Science and Innovation Campus, Didcot OX11 0QX, UK
- Faculty of Science and Engineering, The University of Manchester, Alan Turing Building, Oxford Road, Manchester M13 9PL, UK
| | - Jean Wan Hong Yong
- Department of Biosystems and Technology, The Swedish University of Agricultural Sciences, P.O. Box 190, SE-23422 Lomma, Sweden;
| | - Eva Johansson
- Department of Plant Breeding, The Swedish University of Agricultural Sciences, P.O. Box 190, SE-23422 Lomma, Sweden; (Y.L.); (E.J.)
| | - Ramune Kuktaite
- Department of Plant Breeding, The Swedish University of Agricultural Sciences, P.O. Box 190, SE-23422 Lomma, Sweden; (Y.L.); (E.J.)
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Lu L, Liu N, Fan Z, Liu M, Zhang X, Tian J, Yu Y, Lin H, Huang Y, Kong Z. A novel PGPR strain, Streptomyces lasalocidi JCM 3373 T , alleviates salt stress and shapes root architecture in soybean by secreting indole-3-carboxaldehyde. Plant Cell Environ 2024. [PMID: 38369767 DOI: 10.1111/pce.14847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 02/20/2024]
Abstract
While soybean (Glycine max L.) provides the most important source of vegetable oil and protein, it is sensitive to salinity, which seriously endangers the yield and quality during soybean production. The application of Plant Growth-Promoting Rhizobacteria (PGPR) to improve salt tolerance for plant is currently gaining increasing attention. Streptomycetes are a major group of PGPR. However, to date, few streptomycetes has been successfully developed and applied to promote salt tolerance in soybean. Here, we discovered a novel PGPR strain, Streptomyces lasalocidi JCM 3373T , from 36 strains of streptomycetes via assays of their capacity to alleviate salt stress in soybean. Microscopic observation showed that S. lasalocidi JCM 3373T does not colonise soybean roots. Chemical analysis confirmed that S. lasalocidi JCM 3373T secretes indole-3-carboxaldehyde (ICA1d). Importantly, IAC1d inoculation alleviates salt stress in soybean and modulates its root architecture by regulating the expression of stress-responsive genes GmVSP, GmPHD2 and GmWRKY54 and root growth-related genes GmPIN1a, GmPIN2a, GmYUCCA5 and GmYUCCA6. Taken together, the novel PGPR strain, S. lasalocidi JCM 3373T , alleviates salt stress and improves root architecture in soybean by secreting ICA1d. Our findings provide novel clues for the development of new microbial inoculant and the improvement of crop productivity under salt stress.
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Affiliation(s)
- Liang Lu
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Science, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu, Sichuan, China
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Ning Liu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Zihui Fan
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Minghao Liu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Xiaxia Zhang
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Juan Tian
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Yanjun Yu
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Honghui Lin
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Science, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu, Sichuan, China
| | - Ying Huang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Zhaosheng Kong
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- Hou-Ji Laboratory in Shanxi province, Academy of Agronomy, Shanxi Agricultural University, Taiyuan, China
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5
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Kamran M, Melville KT, Waters MT. Karrikin signalling: impacts on plant development and abiotic stress tolerance. J Exp Bot 2024; 75:1174-1186. [PMID: 38001035 PMCID: PMC10860534 DOI: 10.1093/jxb/erad476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 11/23/2023] [Indexed: 11/26/2023]
Abstract
Plants rely upon a diverse range of metabolites to control growth and development, and to overcome stress that results from suboptimal conditions. Karrikins (KARs) are a class of butenolide compounds found in smoke that stimulate seed germination and regulate various developmental processes in plants. KARs are perceived via a plant α/β-hydrolase called KARRIKIN INSENSITIVE2 (KAI2), which also functions as a receptor for a postulated phytohormone, provisionally termed KAI2 ligand (KL). Considered natural analogues of KL, KARs have been extensively studied for their effects on plant growth and their crosstalk with plant hormones. The perception and response pathway for KAR-KL signalling is closely related to that of strigolactones, another class of butenolides with numerous functions in regulating plant growth. KAR-KL signalling influences seed germination, seedling photomorphogenesis, root system architecture, abiotic stress responses, and arbuscular mycorrhizal symbiosis. Here, we summarize current knowledge of KAR-KL signalling, focusing on its role in plant development, its effects on stress tolerance, and its interaction with other signalling mechanisms.
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Affiliation(s)
- Muhammad Kamran
- School of Molecular Sciences, The University of Western Australia, Perth, WA 6009, Australia
| | - Kim T Melville
- School of Molecular Sciences, The University of Western Australia, Perth, WA 6009, Australia
| | - Mark T Waters
- School of Molecular Sciences, The University of Western Australia, Perth, WA 6009, Australia
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6
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Jan M, Muhammad S, Jin W, Zhong W, Zhang S, Lin Y, Zhou Y, Liu J, Liu H, Munir R, Yue Q, Afzal M, Wang G. Modulating root system architecture: cross-talk between auxin and phytohormones. Front Plant Sci 2024; 15:1343928. [PMID: 38390293 PMCID: PMC10881875 DOI: 10.3389/fpls.2024.1343928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 01/08/2024] [Indexed: 02/24/2024]
Abstract
Root architecture is an important agronomic trait that plays an essential role in water uptake, soil compactions, nutrient recycling, plant-microbe interactions, and hormone-mediated signaling pathways. Recently, significant advancements have been made in understanding how the complex interactions of phytohormones regulate the dynamic organization of root architecture in crops. Moreover, phytohormones, particularly auxin, act as internal regulators of root development in soil, starting from the early organogenesis to the formation of root hair (RH) through diverse signaling mechanisms. However, a considerable gap remains in understanding the hormonal cross-talk during various developmental stages of roots. This review examines the dynamic aspects of phytohormone signaling, cross-talk mechanisms, and the activation of transcription factors (TFs) throughout various developmental stages of the root life cycle. Understanding these developmental processes, together with hormonal signaling and molecular engineering in crops, can improve our knowledge of root development under various environmental conditions.
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Affiliation(s)
- Mehmood Jan
- College of Horticulture, South China Agricultural University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan, China
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong, China
| | - Sajid Muhammad
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Weicai Jin
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong, China
- Heyuan Division of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Heyuan, Guangdong, China
| | - Wenhao Zhong
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong, China
| | - Shaolong Zhang
- College of Horticulture, South China Agricultural University, Guangzhou, Guangdong, China
- Heyuan Division of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Heyuan, Guangdong, China
| | - Yanjie Lin
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong, China
| | - Yueni Zhou
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong, China
| | - Jinlong Liu
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong, China
| | - Haifeng Liu
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong, China
- Heyuan Division of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Heyuan, Guangdong, China
| | - Raheel Munir
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Qiang Yue
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan, China
| | - Muhammad Afzal
- College of Horticulture, South China Agricultural University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan, China
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong, China
| | - Guoping Wang
- College of Horticulture, South China Agricultural University, Guangzhou, Guangdong, China
- Heyuan Division of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Heyuan, Guangdong, China
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7
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Affortit P, Ahmed MA, Grondin A, Delzon S, Carminati A, Laplaze L. Keep in touch: the soil-root hydraulic continuum and its role in drought resistance in crops. J Exp Bot 2024; 75:584-593. [PMID: 37549338 DOI: 10.1093/jxb/erad312] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 08/04/2023] [Indexed: 08/09/2023]
Abstract
Drought is a major threat to food security worldwide. Recently, the root-soil interface has emerged as a major site of hydraulic resistance during water stress. Here, we review the impact of soil drying on whole-plant hydraulics and discuss mechanisms by which plants can adapt by modifying the properties of the rhizosphere either directly or through interactions with the soil microbiome.
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Affiliation(s)
- Pablo Affortit
- DIADE, IRD, CIRAD, Université de Montpellier, Montpellier, France
| | - Mutez Ali Ahmed
- Root-Soil Interaction, School of Life Science, Technical University of Munich, Freising, Germany
| | | | | | - Andrea Carminati
- Department of Environmental Systems Science, ETH Zürich, Zürich, Switzerland
| | - Laurent Laplaze
- DIADE, IRD, CIRAD, Université de Montpellier, Montpellier, France
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8
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Gifford ML, Xu G, Dupuy LX, Vissenberg K, Rebetzke G. Root architecture and rhizosphere-microbe interactions. J Exp Bot 2024; 75:503-507. [PMID: 38197460 PMCID: PMC10773993 DOI: 10.1093/jxb/erad488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 12/08/2023] [Indexed: 01/11/2024]
Abstract
Plant roots fulfil crucial tasks during a plant's life. As roots encounter very diverse conditions while exploring the soil for resources, their growth and development must be responsive to changes in the rhizosphere, resulting in root architectures that are tailor-made for all prevailing circumstances. Using multi-disciplinary approaches, we are gaining more intricate insights into the regulatory mechanisms directing root system architecture. This Special Issue provides insights into our advancement of knowledge on different aspects of root development and identifies opportunities for future research.
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Affiliation(s)
- Miriam L Gifford
- School of Life Sciences, The University of Warwick, Coventry, UK
| | - Guohua Xu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing 210095, China
| | - Lionel X Dupuy
- Department of Conservation of Natural Resources, Neiker, Derio, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, Spain
| | - Kris Vissenberg
- Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, Antwerp, Belgium
- Plant Biochemistry and Biotechnology Lab, Department of Agriculture, Hellenic Mediterranean University, Stavromenos PC 71410, Heraklion, Crete, Greece
| | - Greg Rebetzke
- CSIRO Agriculture and Food, PO Box 1700, Canberra ACT 2601, Australia
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Jafari F, Wang B, Wang H, Zou J. Breeding maize of ideal plant architecture for high-density planting tolerance through modulating shade avoidance response and beyond. J Integr Plant Biol 2023. [PMID: 38131117 DOI: 10.1111/jipb.13603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/27/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
Maize is a major staple crop widely used as food, animal feed, and raw materials in industrial production. High-density planting is a major factor contributing to the continuous increase of maize yield. However, high planting density usually triggers a shade avoidance response and causes increased plant height and ear height, resulting in lodging and yield loss. Reduced plant height and ear height, more erect leaf angle, reduced tassel branch number, earlier flowering, and strong root system architecture are five key morphological traits required for maize adaption to high-density planting. In this review, we summarize recent advances in deciphering the genetic and molecular mechanisms of maize involved in response to high-density planting. We also discuss some strategies for breeding advanced maize cultivars with superior performance under high-density planting conditions.
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Affiliation(s)
- Fereshteh Jafari
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Baobao Wang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- National Nanfan Research Institute, CAAS, Sanya, 572025, China
| | - Haiyang Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Junjie Zou
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- National Nanfan Research Institute, CAAS, Sanya, 572025, China
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Cardoni M, Mercado-Blanco J. Confronting stresses affecting olive cultivation from the holobiont perspective. Front Plant Sci 2023; 14:1261754. [PMID: 38023867 PMCID: PMC10661416 DOI: 10.3389/fpls.2023.1261754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023]
Abstract
The holobiont concept has revolutionized our understanding of plant-associated microbiomes and their significance for the development, fitness, growth and resilience of their host plants. The olive tree holds an iconic status within the Mediterranean Basin. Innovative changes introduced in olive cropping systems, driven by the increasing demand of its derived products, are not only modifying the traditional landscape of this relevant commodity but may also imply that either traditional or emerging stresses can affect it in ways yet to be thoroughly investigated. Incomplete information is currently available about the impact of abiotic and biotic pressures on the olive holobiont, what includes the specific features of its associated microbiome in relation to the host's structural, chemical, genetic and physiological traits. This comprehensive review consolidates the existing knowledge about stress factors affecting olive cultivation and compiles the information available of the microbiota associated with different olive tissues and organs. We aim to offer, based on the existing evidence, an insightful perspective of diverse stressing factors that may disturb the structure, composition and network interactions of the olive-associated microbial communities, underscoring the importance to adopt a more holistic methodology. The identification of knowledge gaps emphasizes the need for multilevel research approaches and to consider the holobiont conceptual framework in future investigations. By doing so, more powerful tools to promote olive's health, productivity and resilience can be envisaged. These tools may assist in the designing of more sustainable agronomic practices and novel breeding strategies to effectively face evolving environmental challenges and the growing demand of high quality food products.
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Affiliation(s)
- Martina Cardoni
- Departamento de Microbiología del Suelo y la Planta, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - Jesús Mercado-Blanco
- Departamento de Microbiología del Suelo y la Planta, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
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11
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Barłóg P. Improving Fertilizer Use Efficiency-Methods and Strategies for the Future. Plants (Basel) 2023; 12:3658. [PMID: 37896121 PMCID: PMC10610152 DOI: 10.3390/plants12203658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 10/10/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023]
Abstract
This editorial introduces our Special Issue entitled "Improving Fertilizer Use Efficiency-Methods and Strategies for the Future". The fertilizer use efficiency (FUE) is a measure of the potential of an applied fertilizer to increase the productivity and utilization of the nutrients present in the soil/plant system. FUE indices are mainly used to assess the effectiveness of nitrogen (N), phosphorus (P), and potassium (K) fertilization. This is due to the low efficiency of use of NPK fertilizers, their environmental side effects and also, in relation to P, limited natural resources. The FUE is the result of a series of interactions between the plant genotype and the environment, including both abiotic and biotic factors. A full recognition of these factors is the basis for proper fertilization in farming practice, aimed at maximizing the FUE. This Special Issue focuses on some key topics in crop fertilization. Due to specific goals, they can be grouped as follows: removing factors that limit the nutrient uptake of plants; improving and/or maintaining an adequate soil fertility; the precise determination of fertilizer doses and application dates; foliar application; the use of innovative fertilizers; and the adoption of efficient genotypes. The most important nutrient in crop production is N. Hence, most scientific research focuses on improving the nitrogen use efficiency (NUE). Obtaining high NUE values is possible, but only if the plants are well supplied with nitrogen-supporting nutrients. In this Special Issue, particular attention is paid to improving the plant supply with P and K.
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Affiliation(s)
- Przemysław Barłóg
- Department of Agricultural Chemistry and Environmental Biogeochemistry, Poznan University of Life Sciences, Wojska Polskiego 71F, 60-625 Poznan, Poland
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12
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Rahmati Ishka M, Julkowska M. Tapping into the plasticity of plant architecture for increased stress resilience. F1000Res 2023; 12:1257. [PMID: 38434638 PMCID: PMC10905174 DOI: 10.12688/f1000research.140649.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/24/2023] [Indexed: 03/05/2024] Open
Abstract
Plant architecture develops post-embryonically and emerges from a dialogue between the developmental signals and environmental cues. Length and branching of the vegetative and reproductive tissues were the focus of improvement of plant performance from the early days of plant breeding. Current breeding priorities are changing, as we need to prioritize plant productivity under increasingly challenging environmental conditions. While it has been widely recognized that plant architecture changes in response to the environment, its contribution to plant productivity in the changing climate remains to be fully explored. This review will summarize prior discoveries of genetic control of plant architecture traits and their effect on plant performance under environmental stress. We review new tools in phenotyping that will guide future discoveries of genes contributing to plant architecture, its plasticity, and its contributions to stress resilience. Subsequently, we provide a perspective into how integrating the study of new species, modern phenotyping techniques, and modeling can lead to discovering new genetic targets underlying the plasticity of plant architecture and stress resilience. Altogether, this review provides a new perspective on the plasticity of plant architecture and how it can be harnessed for increased performance under environmental stress.
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Kostic I, Nikolic N, Milanovic S, Milenkovic I, Pavlovic J, Paravinja A, Nikolic M. Silicon modifies leaf nutriome and improves growth of oak seedlings exposed to phosphorus deficiency and Phytophthora plurivora infection. Front Plant Sci 2023; 14:1265782. [PMID: 37705706 PMCID: PMC10495579 DOI: 10.3389/fpls.2023.1265782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 08/10/2023] [Indexed: 09/15/2023]
Abstract
Beneficial effects of silicon (Si) on plants have primarily been studied in crop species under single stress. Moreover, nutrient acquisition-based responses to combination of biotic and abiotic stresses (a common situation in natural habitats) have rarely been reported, in particular in conjunction with soil amendments with Si. Pedunculate oak (Quercus robur L.), one of the ecologically and economically most important tree species in Europe, is facing a severe decline due to combined stresses, but also problems in assisted regeneration in nurseries. Here, we studied the effect of Si supply on the leaf nutriome, root traits and overall growth of 12-weeks-old oak seedlings exposed to abiotic stress [low phosphorus (P) supply], biotic stress (Phytophthora plurivora root infection), and their combination. The application of Si had the strongest ameliorative effect on growth, root health and root phenome under the most severe stress conditions (i.e., combination of P deficiency and P. plurivora root infection), where it differentially affected the uptake and leaf accumulation in 11 out of 13 analysed nutrients. Silicon supply tended to reverse the pattern of change of some, but not all, leaf nutrients affected by stresses: P, boron (B) and magnesium (Mg) under P deficiency, and P, B and sulphur (S) under pathogen attack, but also nickel (Ni) and molybdenum (Mo) under all three stresses. Surprisingly, Si affected some nutrients that were not changed by a particular stress itself and decreased leaf Mg levels under all the stresses. On the other hand, pathogen attack increased leaf accumulation of Si. This exploratory work presents the complexity of nutrient crosstalk under three stresses, and opens more questions about genetic networks that control plant physiological responses. Practically, we show a potential of Si application to improve P status and root health in oak seedlings, particularly in nurseries.
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Affiliation(s)
- Igor Kostic
- Laboratory of Plant Nutrition, Institute for Multidisciplinary Research, University of Belgrade, Belgrade, Serbia
| | - Nina Nikolic
- Laboratory of Plant Nutrition, Institute for Multidisciplinary Research, University of Belgrade, Belgrade, Serbia
| | - Slobodan Milanovic
- Faculty of Forestry, University of Belgrade, Belgrade, Serbia
- Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czechia
| | - Ivan Milenkovic
- Faculty of Forestry, University of Belgrade, Belgrade, Serbia
- Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czechia
| | - Jelena Pavlovic
- Laboratory of Plant Nutrition, Institute for Multidisciplinary Research, University of Belgrade, Belgrade, Serbia
| | - Ana Paravinja
- Laboratory of Plant Nutrition, Institute for Multidisciplinary Research, University of Belgrade, Belgrade, Serbia
| | - Miroslav Nikolic
- Laboratory of Plant Nutrition, Institute for Multidisciplinary Research, University of Belgrade, Belgrade, Serbia
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Lehman TA, Rosas MA, Brew-Appiah RAT, Solanki S, York ZB, Dannay R, Wu Y, Roalson EH, Zheng P, Main D, Baskin TI, Sanguinet KA. BUZZ: an essential gene for postinitiation root hair growth and a mediator of root architecture in Brachypodium distachyon. New Phytol 2023. [PMID: 37421201 DOI: 10.1111/nph.19079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 05/10/2023] [Indexed: 07/10/2023]
Abstract
Here, we discover a player in root development. Recovered from a forward-genetic screen in Brachypodium distachyon, the buzz mutant initiates root hairs but they fail to elongate. In addition, buzz roots grow twice as fast as wild-type roots. Also, lateral roots show increased sensitivity to nitrate, whereas primary roots are less sensitive to nitrate. Using whole-genome resequencing, we identified the causal single nucleotide polymorphism as occurring in a conserved but previously uncharacterized cyclin-dependent kinase (CDK)-like gene. The buzz mutant phenotypes are rescued by the wild-type B. distachyon BUZZ coding sequence and by an apparent homolog in Arabidopsis thaliana. Moreover, T-DNA mutants in A. thaliana BUZZ have shorter root hairs. BUZZ mRNA localizes to epidermal cells and develops root hairs and, in the latter, partially colocalizes with the NRT1.1A nitrate transporter. Based on qPCR and RNA-Seq, buzz overexpresses ROOT HAIRLESS LIKE SIX-1 and -2 and misregulates genes related to hormone signaling, RNA processing, cytoskeletal, and cell wall organization, and to the assimilation of nitrate. Overall, these data demonstrate that BUZZ is required for tip growth after root hair initiation and root architectural responses to nitrate.
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Affiliation(s)
- Thiel A Lehman
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA, 99164, USA
| | - Miguel A Rosas
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA, 99164, USA
- Molecular Plant Sciences Graduate Program, Washington State University, Pullman, WA, 99164, USA
| | - Rhoda A T Brew-Appiah
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA, 99164, USA
| | - Shyam Solanki
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA, 99164, USA
- Department of Agronomy, Horticulture & Plant Science, South Dakota State University, Brookings, SD, 57007, USA
| | - Zara B York
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA, 99164, USA
| | - Rachel Dannay
- Molecular Plant Sciences Graduate Program, Washington State University, Pullman, WA, 99164, USA
| | - Ying Wu
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, 130024, China
| | - Eric H Roalson
- School of Biological Sciences, Washington State University, Pullman, WA, 99164, USA
| | - Ping Zheng
- Department of Horticulture, Washington State University, Pullman, WA, 99164, USA
| | - Dorrie Main
- Department of Horticulture, Washington State University, Pullman, WA, 99164, USA
| | - Tobias I Baskin
- Department of Biology, University of Massachusetts, Amherst, MA, 01003, USA
| | - Karen A Sanguinet
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA, 99164, USA
- Molecular Plant Sciences Graduate Program, Washington State University, Pullman, WA, 99164, USA
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15
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Layek J, Rangappa K, Das A, Ansari MA, Choudhary S, Rajbonshi N, Patra S, Kumar A, Mishra VK, Ravisankar N, Kumar S, Hazarika S, Dutta SK, Babu S, Tahasildar M, Shettigar N. Evaluation of millets for physio-chemical and root morphological traits suitable for resilient farming and nutritional security in Eastern Himalayas. Front Nutr 2023; 10:1198023. [PMID: 37469543 PMCID: PMC10353539 DOI: 10.3389/fnut.2023.1198023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/05/2023] [Indexed: 07/21/2023] Open
Abstract
Introduction Millets are nutritionally superior and climate-resilient short-duration crops and hold a prominent place in cropping sequences around the world. They have immense potential to grow in a marginal environment due to diverse adaptive mechanisms. Methods An experiment was conducted in an organic production system in the North Eastern Himalayan foothills of India for 3 consecutive years by evaluating high-yielding varieties (HYVs) of different millets, viz., finger millet, foxtail millet, little millet, barnyard millet, proso millet, and browntop millet, along with local landraces of finger millets (Sikkim-1 and Sikkim-2; Nagaland-1 and Nagaland-2) to identify stable, high-yielding, and nutritionally superior genotypes suited for the region. Results Among the various millets, finger millet, followed by little millet and foxtail millet, proved their superiority in terms of productivity (ranging between 1.16 and 1.43 Mg ha-1) compared to other millets. Among different varieties of finger millets, cv. VL Mandua 352 recorded the highest average grain yield (1.43 Mg ha-1) followed by local landraces, Nagaland-2 (1.31 Mg ha-1) and Sikkim-1 (1.25 Mg ha-1). Root traits such as total root length, root volume, average diameter of roots, and root surface area were significantly higher in finger millet landraces Nagaland-1, Nagaland-2, and Sikkim-1 compared to the rest of the millet genotypes. The different millets were found to be rich sources of protein as recorded in foxtail millet cv. SiA 3088 (12.3%), proso millet cv. TNAU 145 (11.5%), and finger millet landraces, Sikkim-1 and Nagaland-2 (8.7% each). Finger millet landrace Sikkim-2 recorded the highest omega-6 content (1.16%), followed by barnyard millet cv. VL 207 (1.09%). Barnyard millet cv. VL 207 recorded the highest polyunsaturated fatty acid (PUFA) content (1.23%), followed by foxtail millet cv. SiA 3088 (1.09%). The local finger millet landraces Sikkim-1 and Sikkim-2 recorded the highest levels of histidine (0.41%) and tryptophan (0.12%), respectively. Sikkim-1 and Nagaland-2 recorded the highest level of thiamine (0.32%) compared to the HYVs. Conclusion These findings indicate that finger millet has great potential in the organic production system of the North Eastern Himalayan Region (NEHR) of India, and apart from HYVs like VL Mandua 352, local landraces, viz., Nagaland-2 and Sikkim-1, should also be promoted for ensuring food and nutritional security in this fragile ecosystem.
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Affiliation(s)
- Jayanta Layek
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | | | - Anup Das
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
- ICAR Research Complex for Eastern Region, Patna, India
| | - Meraj A. Ansari
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
- Project Coordination Unit, ICAR-Indian Institute of Farming Systems Research, Modipuram, Meerut, India
| | - Sunita Choudhary
- International Crops Research Institute for the Semi-Arid Tropics, Hyderabad, India
| | | | - Sandip Patra
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | - Amit Kumar
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | - Vinay K. Mishra
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | - Natesan Ravisankar
- Project Coordination Unit, ICAR-Indian Institute of Farming Systems Research, Modipuram, Meerut, India
| | - Sunil Kumar
- ICAR-Indian Institute of Farming Systems Research, Modipuram, Meerut, India
| | | | - Sudip K. Dutta
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | - Subhash Babu
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - M. Tahasildar
- ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
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Xie B, Chen Y, Zhang Y, An X, Li X, Yang A, Kang G, Zhou J, Cheng C. Comparative physiological, metabolomic, and transcriptomic analyses reveal mechanisms of apple dwarfing rootstock root morphogenesis under nitrogen and/or phosphorus deficient conditions. Front Plant Sci 2023; 14:1120777. [PMID: 37404544 PMCID: PMC10315683 DOI: 10.3389/fpls.2023.1120777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 05/16/2023] [Indexed: 07/06/2023]
Abstract
Nitrogen (N) and phosphorus (P) are essential phytomacronutrients, and deficiencies in these two elements limit growth and yield in apple (Malus domestica Borkh.). The rootstock plays a key role in the nutrient uptake and environmental adaptation of apple. The objective of this study was to investigate the effects of N and/or P deficiency on hydroponically-grown dwarfing rootstock 'M9-T337' seedlings, particularly the roots, by performing an integrated physiological, transcriptomics-, and metabolomics-based analyses. Compared to N and P sufficiency, N and/or P deficiency inhibited aboveground growth, increased the partitioning of total N and total P in roots, enhanced the total number of tips, length, volume, and surface area of roots, and improved the root-to-shoot ratio. P and/or N deficiency inhibited NO3 - influx into roots, and H+ pumps played a important role in the response to P and/or N deficiency. Conjoint analysis of differentially expressed genes and differentially accumulated metabolites in roots revealed that N and/or P deficiency altered the biosynthesis of cell wall components such as cellulose, hemicellulose, lignin, and pectin. The expression of MdEXPA4 and MdEXLB1, two cell wall expansin genes, were shown to be induced by N and/or P deficiency. Overexpression of MdEXPA4 enhanced root development and improved tolerance to N and/or P deficiency in transgenic Arabidopsis thaliana plants. In addition, overexpression of MdEXLB1 in transgenic Solanum lycopersicum seedlings increased the root surface area and promoted acquisition of N and P, thereby facilitating plant growth and adaptation to N and/or P deficiency. Collectively, these results provided a reference for improving root architecture in dwarfing rootstock and furthering our understanding of integration between N and P signaling pathways.
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Affiliation(s)
- Bin Xie
- Key Laboratory of Mineral Nutrition and Efficient Fertilization for Deciduous Fruits, Liaoning Province/Key Laboratory of Fruit Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs/Research Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng, Liaoning, China
| | - Yanhui Chen
- Key Laboratory of Mineral Nutrition and Efficient Fertilization for Deciduous Fruits, Liaoning Province/Key Laboratory of Fruit Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs/Research Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng, Liaoning, China
| | - Yanzhen Zhang
- Key Laboratory of Mineral Nutrition and Efficient Fertilization for Deciduous Fruits, Liaoning Province/Key Laboratory of Fruit Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs/Research Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng, Liaoning, China
| | - Xiuhong An
- Research Center for Agricultural Engineering Technology of Mountain District of Hebei/Mountainous Areas Research Institute, Hebei Agricultural University, Baoding, Hebei, China
| | - Xin Li
- Key Laboratory of Mineral Nutrition and Efficient Fertilization for Deciduous Fruits, Liaoning Province/Key Laboratory of Fruit Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs/Research Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng, Liaoning, China
| | - An Yang
- Key Laboratory of Mineral Nutrition and Efficient Fertilization for Deciduous Fruits, Liaoning Province/Key Laboratory of Fruit Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs/Research Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng, Liaoning, China
| | - Guodong Kang
- Key Laboratory of Mineral Nutrition and Efficient Fertilization for Deciduous Fruits, Liaoning Province/Key Laboratory of Fruit Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs/Research Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng, Liaoning, China
| | - Jiangtao Zhou
- Key Laboratory of Mineral Nutrition and Efficient Fertilization for Deciduous Fruits, Liaoning Province/Key Laboratory of Fruit Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs/Research Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng, Liaoning, China
| | - Cungang Cheng
- Key Laboratory of Mineral Nutrition and Efficient Fertilization for Deciduous Fruits, Liaoning Province/Key Laboratory of Fruit Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs/Research Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng, Liaoning, China
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17
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Li C, Guo J, Wang D, Chen X, Guan H, Li Y, Zhang D, Liu X, He G, Wang T, Li Y. Genomic insight into changes of root architecture under drought stress in maize. Plant Cell Environ 2023; 46:1860-1872. [PMID: 36785485 DOI: 10.1111/pce.14567] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/03/2023] [Accepted: 02/11/2023] [Indexed: 05/04/2023]
Abstract
Drought stress is a central environmental factor that severely limits maize production worldwide. Root architecture plays an important role in drought tolerance and can be targeted in breeding programmes. Here, we conducted phenotyping of root architecture under different water treatments for 373 maize inbred lines, representative germplasm from both China and the United States in different breeding eras. We found that seminal root length in response to drought stress experienced convergent increase during breeding in both countries. Using a genome-wide association study, we identified a total of 221 associated loci underlying 13 root traits under well-watered and water-stressed conditions. These loci harboured many reported root- and abiotic stress-related genes. Furthermore, a total of 75 strong candidate genes were prioritised by integrating candidate genes associated with seminal root length and differentially expressed genes in seminal root. One of high-confidence candidate genes, ZmCIPK3 was functionally characterised and probably plays a role in enhancing drought tolerance through regulating seminal root growth. This study provides valuable information for genetic improvement of root architecture and drought tolerance in maize.
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Affiliation(s)
- Chunhui Li
- State Key Lab of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jian Guo
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College, Yangzhou University, Yangzhou, China
| | - Dongmei Wang
- State Key Lab of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaojing Chen
- State Key Lab of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Honghui Guan
- State Key Lab of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yongxiang Li
- State Key Lab of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dengfeng Zhang
- State Key Lab of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xuyang Liu
- State Key Lab of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Guanhua He
- State Key Lab of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Tianyu Wang
- State Key Lab of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yu Li
- State Key Lab of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
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18
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Zhao J, Hu J. Melatonin: Current status and future perspectives in horticultural plants. Front Plant Sci 2023; 14:1140803. [PMID: 37035081 PMCID: PMC10076644 DOI: 10.3389/fpls.2023.1140803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 02/01/2023] [Indexed: 06/19/2023]
Abstract
Global warming in this century increases incidences of various abiotic stresses, restricting plant growth and productivity and posing a severe threat to global food production and security. Different phytohormones are produced by plants to mitigate the adverse effects of these stresses. One such phytohormone is melatonin (MEL), which, being a potential bio-stimulator, helps to govern a wide array of functions in horticultural crops. Recent advancements have determined the role of MEL in plants' responses to abiotic stresses. MEL enhances physiological functions such as seed germination, growth and development, seedling growth, root system architecture, and photosynthetic efficiency. The potential function of MEL in stressful environments is to regulate the enzymatic and non-enzymatic antioxidant activity, thus playing a role in the substantial scavenging of reactive oxygen species (ROS). Additionally, MEL, as a plant growth regulator and bio-stimulator, aids in promoting plant tolerance to abiotic stress, mainly through improvements in nutrient uptake, osmolyte production, and cellular membrane stability. This review, therefore, focuses on the possible functions of MEL in the induction of different abiotic stresses in horticultural crops. Therefore, this review would help readers learn more about MEL in altered environments and provide new suggestions on how this knowledge could be used to develop stress tolerance.
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19
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Ren M, Li Y, Zhu J, Zhao K, Wu Z, Mao C. Phenotypes and Molecular Mechanisms Underlying the Root Response to Phosphate Deprivation in Plants. Int J Mol Sci 2023; 24:ijms24065107. [PMID: 36982176 PMCID: PMC10049108 DOI: 10.3390/ijms24065107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/21/2023] [Accepted: 02/28/2023] [Indexed: 03/30/2023] Open
Abstract
Phosphorus (P) is an essential macronutrient for plant growth. The roots are the main organ for nutrient and water absorption in plants, and they adapt to low-P soils by altering their architecture for enhancing absorption of inorganic phosphate (Pi). This review summarizes the physiological and molecular mechanisms underlying the developmental responses of roots to Pi starvation, including the primary root, lateral root, root hair, and root growth angle, in the dicot model plant Arabidopsis thaliana and the monocot model plant rice (Oryza sativa). The importance of different root traits and genes for breeding P-efficient roots in rice varieties for Pi-deficient soils are also discussed, which we hope will benefit the genetic improvement of Pi uptake, Pi-use efficiency, and crop yields.
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Affiliation(s)
- Meiyan Ren
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yong Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jianshu Zhu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Keju Zhao
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zhongchang Wu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Chuanzao Mao
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
- Hainan Institute, Zhejiang University, Yazhou Bay Science and Technology City, Sanya 572100, China
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20
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Wei M, Zhang M, Sun J, Zhao Y, Pak S, Ma M, Chen Y, Lu H, Yang J, Wei H, Li Y, Li C. PuHox52 promotes coordinated uptake of nitrate, phosphate, and iron under nitrogen deficiency in Populus ussuriensis. J Integr Plant Biol 2023; 65:791-809. [PMID: 36226597 DOI: 10.1111/jipb.13389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
It is of great importance to better understand how trees regulate nitrogen (N) uptake under N deficiency conditions which severely challenge afforestation practices, yet the underlying molecular mechanisms have not been well elucidated. Here, we functionally characterized PuHox52, a Populus ussuriensis HD-ZIP transcription factor, whose overexpression greatly enhanced nutrient uptake and plant growth under N deficiency. We first conducted an RNA sequencing experiment to obtain root transcriptome using PuHox52-overexpression lines of P. ussuriensis under low N treatment. We then performed multiple genetic and phenotypic analyses to identify key target genes of PuHox52 and validated how they acted against N deficiency under PuHox52 regulation. PuHox52 was specifically induced in roots by N deficiency, and overexpression of PuHox52 promoted N uptake, plant growth, and root development. We demonstrated that several nitrate-responsive genes (PuNRT1.1, PuNRT2.4, PuCLC-b, PuNIA2, PuNIR1, and PuNLP1), phosphate-responsive genes (PuPHL1A and PuPHL1B), and an iron transporter gene (PuIRT1) were substantiated to be direct targets of PuHox52. Among them, PuNRT1.1, PuPHL1A/B, and PuIRT1 were upregulated to relatively higher levels during PuHox52-mediated responses against N deficiency in PuHox52-overexpression lines compared to WT. Our study revealed a novel regulatory mechanism underlying root adaption to N deficiency where PuHox52 modulated a coordinated uptake of nitrate, phosphate, and iron through 'PuHox52-PuNRT1.1', 'PuHox52-PuPHL1A/PuPHL1B', and 'PuHox52-PuIRT1' regulatory relationships in poplar roots.
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Affiliation(s)
- Ming Wei
- State Key Laboratory of Tree Genetics and Breeding, School of Forestry, Northeast Forestry University, Harbin, 150040, China
- College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
| | - Mengqiu Zhang
- State Key Laboratory of Tree Genetics and Breeding, School of Forestry, Northeast Forestry University, Harbin, 150040, China
| | - Jiali Sun
- State Key Laboratory of Tree Genetics and Breeding, School of Forestry, Northeast Forestry University, Harbin, 150040, China
| | - Ying Zhao
- State Key Laboratory of Tree Genetics and Breeding, School of Forestry, Northeast Forestry University, Harbin, 150040, China
| | - Solme Pak
- State Key Laboratory of Tree Genetics and Breeding, School of Forestry, Northeast Forestry University, Harbin, 150040, China
| | - Miaomiao Ma
- State Key Laboratory of Tree Genetics and Breeding, School of Forestry, Northeast Forestry University, Harbin, 150040, China
| | - Yingxi Chen
- State Key Laboratory of Tree Genetics and Breeding, School of Forestry, Northeast Forestry University, Harbin, 150040, China
| | - Han Lu
- College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
| | - Jingli Yang
- State Key Laboratory of Tree Genetics and Breeding, School of Forestry, Northeast Forestry University, Harbin, 150040, China
| | - Hairong Wei
- College of Forest Resources and Environmental Science, Michigan Technological University, Houghton, Michigan, 49931, USA
| | - Yuhua Li
- College of Life Sciences, Northeast Forestry University, Harbin, 150040, China
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, 150040, China
| | - Chenghao Li
- State Key Laboratory of Tree Genetics and Breeding, School of Forestry, Northeast Forestry University, Harbin, 150040, China
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Tokić M, Leljak Levanić D, Ludwig-Müller J, Bauer N. Growth and Molecular Responses of Tomato to Prolonged and Short-Term Heat Exposure. Int J Mol Sci 2023; 24:ijms24054456. [PMID: 36901887 PMCID: PMC10002527 DOI: 10.3390/ijms24054456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/18/2023] [Accepted: 02/20/2023] [Indexed: 03/12/2023] Open
Abstract
Tomatoes are one of the most important vegetables for human consumption. In the Mediterranean's semi-arid and arid regions, where tomatoes are grown in the field, global average surface temperatures are predicted to increase. We investigated tomato seed germination at elevated temperatures and the impact of two different heat regimes on seedlings and adult plants. Selected exposures to 37 °C and heat waves at 45 °C mirrored frequent summer conditions in areas with a continental climate. Exposure to 37 °C or 45 °C differently affected seedlings' root development. Both heat stresses inhibited primary root length, while lateral root number was significantly suppressed only after exposure to 37 °C. Heat stress treatments induced significant accumulation of indole-3-acetic acid (IAA) and reduced abscisic acid (ABA) levels in seedlings. As opposed to the heat wave treatment, exposure to 37 °C increased the accumulation of the ethylene precursor 1-aminocyclopropane-1-carboxylic acid (ACC), which may have been involved in the root architecture modification of seedlings. Generally, more drastic phenotypic changes (chlorosis and wilting of leaves and bending of stems) were found in both seedlings and adult plants after the heat wave-like treatment. This was also reflected by proline, malondialdehyde and heat shock protein HSP90 accumulation. The gene expression of heat stress-related transcription factors was perturbed and DREB1 was shown to be the most consistent heat stress marker.
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Affiliation(s)
- Mirta Tokić
- Department of Molecular Biology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
| | - Dunja Leljak Levanić
- Department of Molecular Biology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
| | | | - Nataša Bauer
- Department of Molecular Biology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
- Correspondence: ; Tel.: +385-1-4606263
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Gupta A, Singh AN, Tiwari RK, Sahu PK, Yadav J, Srivastava AK, Kumar S. Salinity Alleviation and Reduction in Oxidative Stress by Endophytic and Rhizospheric Microbes in Two Rice Cultivars. Plants (Basel) 2023; 12:976. [PMID: 36903837 PMCID: PMC10005660 DOI: 10.3390/plants12050976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 02/07/2023] [Accepted: 02/18/2023] [Indexed: 06/18/2023]
Abstract
Increased soil salinity poses serious limitations in crop yield and quality; thus, an attempt was made to explore microbial agents to mitigate the ill effects of salinity in rice. The hypothesis was mapping of microbial induction of stress tolerance in rice. Since the rhizosphere and endosphere are two different functional niches directly affected by salinity, it could be very crucial to evaluate them for salinity alleviation. In this experiment, endophytic and rhizospheric microbes were tested for differences in salinity stress alleviation traits in two rice cultivars, CO51 and PB1. Two endophytic bacteria, Bacillus haynesii 2P2 and Bacillus safensis BTL5, were tested with two rhizospheric bacteria, Brevibacterium frigoritolerans W19 and Pseudomonas fluorescens 1001, under elevated salinity (200 mM NaCl) along with Trichoderma viride as an inoculated check. The pot study indicated towards the presence of variable salinity mitigation mechanisms among these strains. Improvement in the photosynthetic machinery was also recorded. These inoculants were evaluated for the induction of antioxidant enzymes viz. CAT, SOD, PO, PPO, APX, and PAL activity along with the effect on proline levels. Modulation of the expression of salt stress responsive genes OsPIP1, MnSOD1, cAPXa, CATa, SERF, and DHN was assessed. Root architecture parameters viz. cumulative length of total root, projection area, average diameter, surface area, root volume, fractal dimension, number of tips, and forks were studied. Confocal scanning laser microscopy indicated accumulation of Na+ in leaves using cell impermeant Sodium Green™, Tetra (Tetramethylammonium) Salt. It was found that each of these parameters were induced differentially by endophytic bacteria, rhizospheric bacteria, and fungus, indicating different paths to complement one ultimate plant function. The biomass accumulation and number of effective tillers were highest in T4 (Bacillus haynesii 2P2) plants in both cultivars and showed the possibility of cultivar specific consortium. These strains and their mechanisms could form the basis for further evaluating microbial strains for climate-resilient agriculture.
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Affiliation(s)
- Amrita Gupta
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, Lucknow 226028, UP, India
- ICAR-Indian Institute of Seed Sciences, Kushmaur, Maunath Bhanjan 275103, UP, India
- ICAR-National Bureau of Agriculturally Important Microorganisms, Kushmaur, Maunath Bhanjan 275103, UP, India
| | - Arvind Nath Singh
- ICAR-Indian Institute of Seed Sciences, Kushmaur, Maunath Bhanjan 275103, UP, India
| | - Rajesh Kumar Tiwari
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, Lucknow 226028, UP, India
| | - Pramod Kumar Sahu
- ICAR-National Bureau of Agriculturally Important Microorganisms, Kushmaur, Maunath Bhanjan 275103, UP, India
| | - Jagriti Yadav
- ICAR-National Bureau of Agriculturally Important Microorganisms, Kushmaur, Maunath Bhanjan 275103, UP, India
| | - Alok Kumar Srivastava
- ICAR-National Bureau of Agriculturally Important Microorganisms, Kushmaur, Maunath Bhanjan 275103, UP, India
| | - Sanjay Kumar
- ICAR-Indian Institute of Seed Sciences, Kushmaur, Maunath Bhanjan 275103, UP, India
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Chen Z, Wang L, Cardoso JA, Zhu S, Liu G, Rao IM, Lin Y. Improving phosphorus acquisition efficiency through modification of root growth responses to phosphate starvation in legumes. Front Plant Sci 2023; 14:1094157. [PMID: 36844096 PMCID: PMC9950756 DOI: 10.3389/fpls.2023.1094157] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
Phosphorus (P) is one of the essential macronutrients for plant growth and development, and it is an integral part of the major organic components, including nucleic acids, proteins and phospholipids. Although total P is abundant in most soils, a large amount of P is not easily absorbed by plants. Inorganic phosphate (Pi) is the plant-available P, which is generally immobile and of low availability in soils. Hence, Pi starvation is a major constraint limiting plant growth and productivity. Enhancing plant P efficiency can be achieved by improving P acquisition efficiency (PAE) through modification of morpho-physiological and biochemical alteration in root traits that enable greater acquisition of external Pi from soils. Major advances have been made to dissect the mechanisms underlying plant adaptation to P deficiency, especially for legumes, which are considered important dietary sources for humans and livestock. This review aims to describe how legume root growth responds to Pi starvation, such as changes in the growth of primary root, lateral roots, root hairs and cluster roots. In particular, it summarizes the various strategies of legumes to confront P deficiency by regulating root traits that contribute towards improving PAE. Within these complex responses, a large number of Pi starvation-induced (PSI) genes and regulators involved in the developmental and biochemical alteration of root traits are highlighted. The involvement of key functional genes and regulators in remodeling root traits provides new opportunities for developing legume varieties with maximum PAE needed for regenerative agriculture.
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Affiliation(s)
- Zhijian Chen
- Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Linjie Wang
- Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | | | - Shengnan Zhu
- Life Science and Technology School, Lingnan Normal University, Zhanjiang, China
| | - Guodao Liu
- Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Idupulapati M. Rao
- International Center for Tropical Agriculture (CIAT), Cali, Colombia
- International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
| | - Yan Lin
- Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- Institute of Bioengineering, Guangdong Academy of Sciences, Guangzhou, China
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Guan H, Liu X, Fu Y, Han X, Wang Y, Li Q, Guo L, Mur LAJ, Wei Y, He W. The locoweed endophyte Alternaria oxytropis affects root development in Arabidopsis in vitro through auxin signaling and polar transport. J Exp Bot 2023; 74:931-944. [PMID: 36306203 DOI: 10.1093/jxb/erac430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
Locoweeds are leguminous forbs known for their toxicity to livestock caused by the endophytic fungi Alternaria sect. Undifilum. Unlike the defensive mutualisms reported in many toxin-producing endophytes and their plant hosts, the benefits that A. sect. Undifilum can confer to it host plants remains unclear. Here, we conducted physiological and genetic analyses to show that A. (sect. Undifilum) oxytropis influences growth, especially root development, in its locoweed host Oxytropis ochrocephala and Arabidopsis. The presence of A. oxytropis significantly decreased primary root length while increasing the numbers of lateral roots and root hairs, and increasing plant leaf area and fresh weight. The fungus also increased the concentrations of plant endogenous auxin, and the expression of key genes for auxin biosynthesis, signaling, and transport. These effects on root development were abolished in mutants deficient in auxin signaling and polar transport. Alternaria oxytropis down-regulated expression of PIN1 but increased expression of PIN2, PIN7, and AUX1, which might reflect alterations in the spatial accumulation of auxin responsible for the changes in root architecture. Plant growth was insensitive to A. oxytropis when naphthylphthalamic acid was applied. Our findings indicate a function of A. oxytropis in promoting the growth and development of Arabidopsis via the regulation of auxin, which in turn suggests a possible role in benefiting its locoweed hosts via a process independent of its toxin production.
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Affiliation(s)
- Huirui Guan
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an 710069, China
- Qinling National Botanical Garden, Xi'an 710404, China
| | - Xin Liu
- Shaanxi Institute for Food and Drug Control, Xi'an 710065, China
| | - Yanping Fu
- Provincial Key Laboratory of Biotechnology of Shaanxi Province, College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Xiaomin Han
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Yanli Wang
- Provincial Key Laboratory of Biotechnology of Shaanxi Province, College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Qing Li
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
- Hubei Hongshan Laboratory, Wuhan 430070, China
| | - Liang Guo
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
- Hubei Hongshan Laboratory, Wuhan 430070, China
| | - Luis A J Mur
- Institute of Biology, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth SY23 3FL, UK
| | - Yahui Wei
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Wei He
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an 710069, China
- Key Laboratory of Grassland Resources of Ministry of Education, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010018, China
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25
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Guarneri N, Willig J, Sterken MG, Zhou W, Hasan MS, Sharon L, Grundler FMW, Willemsen V, Goverse A, Smant G, Lozano‐Torres JL. Root architecture plasticity in response to endoparasitic cyst nematodes is mediated by damage signaling. New Phytol 2023; 237:807-822. [PMID: 36285401 PMCID: PMC10108316 DOI: 10.1111/nph.18570] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 10/08/2022] [Indexed: 06/16/2023]
Abstract
Plant root architecture plasticity in response to biotic stresses has not been thoroughly investigated. Infection by endoparasitic cyst nematodes induces root architectural changes that involve the formation of secondary roots at infection sites. However, the molecular mechanisms regulating secondary root formation in response to cyst nematode infection remain largely unknown. We first assessed whether secondary roots form in a nematode density-dependent manner by challenging wild-type Arabidopsis plants with increasing numbers of cyst nematodes (Heterodera schachtii). Next, using jasmonate-related reporter lines and knockout mutants, we tested whether tissue damage by nematodes triggers jasmonate-dependent secondary root formation. Finally, we verified whether damage-induced secondary root formation depends on local auxin biosynthesis at nematode infection sites. Intracellular host invasion by H. schachtii triggers a transient local increase in jasmonates, which activates the expression of ERF109 in a COI1-dependent manner. Knockout mutations in COI1 and ERF109 disrupt the nematode density-dependent increase in secondary roots observed in wild-type plants. Furthermore, ERF109 regulates secondary root formation upon H. schachtii infection via local auxin biosynthesis. Host invasion by H. schachtii triggers secondary root formation via the damage-induced jasmonate-dependent ERF109 pathway. This points at a novel mechanism underlying plant root plasticity in response to biotic stress.
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Affiliation(s)
- Nina Guarneri
- Laboratory of NematologyWageningen University & Research6708 PBWageningenthe Netherlands
| | - Jaap‐Jan Willig
- Laboratory of NematologyWageningen University & Research6708 PBWageningenthe Netherlands
| | - Mark G. Sterken
- Laboratory of NematologyWageningen University & Research6708 PBWageningenthe Netherlands
| | - Wenkun Zhou
- Laboratory of Molecular Biology, Cluster of Plant Developmental BiologyWageningen University & Research6708 PBWageningenthe Netherlands
- State Key Laboratory of Plant Physiology and BiochemistryCollege of Biological Sciences, China Agricultural UniversityBeijing100193China
| | - M. Shamim Hasan
- Institute of Crop Science and Resource Conservation (INRES), Molecular PhytomedicineUniversity of Bonn53115BonnGermany
| | - Letia Sharon
- Institute of Crop Science and Resource Conservation (INRES), Molecular PhytomedicineUniversity of Bonn53115BonnGermany
| | - Florian M. W. Grundler
- Institute of Crop Science and Resource Conservation (INRES), Molecular PhytomedicineUniversity of Bonn53115BonnGermany
| | - Viola Willemsen
- Laboratory of Molecular Biology, Cluster of Plant Developmental BiologyWageningen University & Research6708 PBWageningenthe Netherlands
| | - Aska Goverse
- Laboratory of NematologyWageningen University & Research6708 PBWageningenthe Netherlands
| | - Geert Smant
- Laboratory of NematologyWageningen University & Research6708 PBWageningenthe Netherlands
| | - Jose L. Lozano‐Torres
- Laboratory of NematologyWageningen University & Research6708 PBWageningenthe Netherlands
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Yahya M, Rasul M, Hussain SZ, Dilawar A, Ullah M, Rajput L, Afzal A, Asif M, Wubet T, Yasmin S. Integrated analysis of potential microbial consortia, soil nutritional status, and agro-climatic datasets to modulate P nutrient uptake and yield effectiveness of wheat under climate change resilience. Front Plant Sci 2023; 13:1074383. [PMID: 36714699 PMCID: PMC9878846 DOI: 10.3389/fpls.2022.1074383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 11/18/2022] [Indexed: 06/18/2023]
Abstract
Climate change has a devastating effect on wheat production; therefore, crop production might decline by 2030. Phosphorus (P) nutrient deficiency is another main limiting factor of reduced yield. Hence, there is a dire need to judiciously consider wheat yield, so that human requirements and nutrition balance can be sustained efficiently. Despite the great significance of biostimulants in sustainable agriculture, there is still a lack of integrated technology encompassing the successful competitiveness of inoculated phosphate-solubilizing bacteria (PSB) in agricultural systems in the context of climatic conditions/meteorological factors and soil nutritional status. Therefore, the present study reveals the modulation of an integrated P nutrient management approach to develop potential PSB consortia for recommended wheat varieties by considering the respective soil health and agro-climatic conditions. The designed consortia were found to maintain adequate viability for up to 9 months, verified through field emission scanning electron microscopy and viable count. Furthermore, a significant increase in grain yield (5%-8%) and seed P (4%) content was observed in consortia-inoculated wheat plants with 20% reduced Diammonium phosphate (DAP) application under net house conditions. Fluorescence in situ hybridization analysis of roots and amplification of the gcd gene of Ochrobactrum sp. SSR indicated the survival and rhizosphere competency of the inoculated PSB. Categorical principal component analysis (CAT-PCA) showed a positive correlation of inoculated field-grown wheat varieties in native soils to grain yield, soil P content, and precipitation for sites belonging to irrigated plains and seed P content, soil organic matter, and number of tillers for sites belonging to Northern dry mountains. However, the impact of inoculation at sites belonging to the Indus delta was found significantly correlated to soil potassium (K) content, electrical conductivity (EC), and temperature. Additionally, a significant increase in grain yield (15%) and seed P (14%) content was observed in inoculated wheat plants. Thus, the present study demonstrates for the first time the need to integrate soil biological health and agro-climatic conditions for consistent performance of augmented PSB and enhanced P nutrient uptake to curtail soil pollution caused by the extensive use of agrochemicals. This study provides innovative insights and identifies key questions for future research on PSB to promote its successful implementation in agriculture.
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Affiliation(s)
- Mahreen Yahya
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Punjab, Pakistan
| | - Maria Rasul
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Punjab, Pakistan
- Department of Environment and Energy, Sejong University, Neungdong-ro, Gwangjin-gu, Republic of Korea
| | - Sayed Zajif Hussain
- Department of Chemistry and Chemical Engineering, Syed Babar Ali-School of Science and Engineering (SBA-SSE), Lahore University of Management Sciences (LUMS), Punjab, Pakistan
| | - Adil Dilawar
- State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences (UCAS), Beijing, China
| | - Midrar Ullah
- Department of Biotechnology, Shaheed Benazir Bhutto University, Khyber Pakhtunkhwa, Pakistan
| | - Lubna Rajput
- Plant Physiology and Biotechnology Agricultural Research Centre, Sindh, Pakistan
| | - Aftab Afzal
- Department of Botany, Hazara University Mansehra, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Asif
- Agricultural Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Punjab, Pakistan
| | - Tesfaye Wubet
- Department of Community Ecology, Helmholtz Centre for Environmental Research (UFZ), Halle, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | - Sumera Yasmin
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Punjab, Pakistan
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Chen X, Chen Y, Zhang W, Zhang W, Wang H, Zhou Q. Response characteristics of root to moisture change at seedling stage of Kengyilia hirsuta. Front Plant Sci 2023; 13:1052791. [PMID: 36684787 PMCID: PMC9853184 DOI: 10.3389/fpls.2022.1052791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
Kengyilia hirsuta is an important pioneer plant distributed on the desertified grassland of the Qinghai-Tibet Plateau. It has strong adaptability to alpine desert habitats, so it can be used as a sand-fixing plant on sandy alpine land. To study the response mechanisms of root morphological and physiological characteristics of K. hirsuta to sandy soil moisture, 10%, 25% and 40% moisture levels were set up through potted weighing water control method. The biomass, root-shoot ratio, root architecture parameters, and biochemical parameters malondialdehyde, free proline, soluble protein, indole-3-acetic acid, abscisic acid, cytokinin, gibberellin, relative conductivity and antioxidant enzyme activities were measured in the trefoil stage, and the response mechanisms of roots at different moisture levels were analyzed. The results showed that with the increase of soil moisture, root morphological indexes such as root biomass, total root length, total root volume and total root surface increased, while the root topological index decreased continuously. The malondialdehyde content, relative conductivity, superoxide dismutase activity, peroxidase activity, catalase activity, free proline content, soluble protein content, abscisic acid content and cytokinin content at the 25% and 40% moisture levels were significantly decreased compared with the 10% level (P< 0.05). Thus, the root growth of K. hirsuta was restricted by the 10% moisture level, but supported by the 25% and 40% moisture levels. An artificial neural network revealed that total root length, total root surface area, root link average length, relative conductivity, soluble protein, free proline and moisture level were the key factors affecting root development. These research results could contribute to future agricultural sustainability.
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Affiliation(s)
- Xueyao Chen
- Sichuan Zoige Alpine Wetland Ecosystem National Observation and Research Station, Southwest Minzu University, Chengdu, China
| | - Youjun Chen
- Sichuan Zoige Alpine Wetland Ecosystem National Observation and Research Station, Southwest Minzu University, Chengdu, China
- Institute of the Qinghai-Tibetan Plateau, Southwest Minzu University, Chengdu, China
| | - Wei Zhang
- Sichuan Zoige Alpine Wetland Ecosystem National Observation and Research Station, Southwest Minzu University, Chengdu, China
- Institute of the Qinghai-Tibetan Plateau, Southwest Minzu University, Chengdu, China
| | - Wenlu Zhang
- Sichuan Zoige Alpine Wetland Ecosystem National Observation and Research Station, Southwest Minzu University, Chengdu, China
- Institute of the Qinghai-Tibetan Plateau, Southwest Minzu University, Chengdu, China
| | - Hui Wang
- Sichuan Zoige Alpine Wetland Ecosystem National Observation and Research Station, Southwest Minzu University, Chengdu, China
- Institute of the Qinghai-Tibetan Plateau, Southwest Minzu University, Chengdu, China
| | - Qingping Zhou
- Sichuan Zoige Alpine Wetland Ecosystem National Observation and Research Station, Southwest Minzu University, Chengdu, China
- Institute of the Qinghai-Tibetan Plateau, Southwest Minzu University, Chengdu, China
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Manna M, Rengasamy B, Ambasht NK, Sinha AK. Characterization and expression profiling of PIN auxin efflux transporters reveal their role in developmental and abiotic stress conditions in rice. Front Plant Sci 2022; 13:1059559. [PMID: 36531415 PMCID: PMC9751476 DOI: 10.3389/fpls.2022.1059559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 11/11/2022] [Indexed: 06/17/2023]
Abstract
The auxin efflux transporter proteins called PINs ferry auxin from its source to sinks in particular directions depending on their polar localizations in the plasma membrane, thus facilitating the development of the entire plant architecture. The rice genome has 12 PIN genes distributed over eight chromosomes. To study their roles in plant development, abiotic stress responsiveness, and shaping an auxin-dependent root architecture, a genome-wide analysis was carried out. Based on phylogeny, cellular localization, and hydrophilic loop domain size, the PINs were categorized into canonical and noncanonical PINs. PINs were found expressed in all of the organs of plants that emphasized their indispensable role throughout the plant's life cycle. We discovered that PIN5C and PIN9 were upregulated during salt and drought stress. We also found that regardless of its cellular level, auxin functioned as a molecular switch to turn on auxin biosynthesis genes. On the contrary, although PIN expression was upregulated upon initial treatment with auxin, prolonged auxin treatment not only led to their downregulation but also led to the development of auxin-dependent altered root formation in rice. Our study paves the way for developing stress-tolerant rice and plants with a desirable root architecture by genetic engineering.
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Affiliation(s)
- Mrinalini Manna
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, India
| | | | | | - Alok Krishna Sinha
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, India
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Li X, Dang X, Gao Y, Meng Z, Chen X, Wang Y. Response Mechanisms of Adventitious Root Architectural Characteristics of Nitraria tangutorum Shrubs to Soil Nutrients in Nabkha. Plants (Basel) 2022; 11:3218. [PMID: 36501258 PMCID: PMC9738951 DOI: 10.3390/plants11233218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/20/2022] [Accepted: 10/22/2022] [Indexed: 06/17/2023]
Abstract
The adventitious roots of desert shrubs respond to a nabkhas soil environment by adjusting their configuration characteristics, but the mechanism of this response and the main influencing factors are still unclear. To illustrate this response pattern, Nitraria tangutorum Bobrov, Sovetsk. in West Ordos National Nature Reserve was studied, and the shrub was divided into three growth stages: the rudimental stage, developing stage, and stabilizing stage. A combination of total root excavation and root tracing was used to investigate their adventitious root morphology. The results show the following: (1) As the shrub grows, the ability to accumulate sand into nabkhas increases. (2) The soil nutrient accumulation capacity increased with shrub growth. The "fertilizer island effect" was formed in the nutrient developing stage and stabilizing stage of nabkhas soil, but the rudimental stage was not formed. (3) The adventitious root architecture of N. tangutorum at different growth stages was all herringbone with a simple branch structure. With the growth in N. tangutorum, the root diameter of each level gradually increased, the branches of the shrub grew gradually complicated, and the range of resource utilization gradually expanded. (4) Redundancy analysis (RDA) results show that soil organic carbon (SOC) was the main factor affecting the adventitious root architecture. The results of this study reveal the adjustments the adventitious root architecture of N. tangutorum make in order to adapt to the stress environment and provide data support for the protection of natural vegetation in West Ordos.
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Affiliation(s)
- Xiaole Li
- College of Desert Control Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Xiaohong Dang
- College of Desert Control Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
- Inner Mongolia Hangjin Desert Ecosystem National Positional Research Station, Ordos 017400, China
| | - Yong Gao
- College of Desert Control Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Zhongju Meng
- College of Desert Control Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Xue Chen
- College of Desert Control Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Yanyi Wang
- College of Desert Control Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
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30
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Rogato A, Valkov VT, Chiurazzi M. LjNRT2.3 plays a hierarchical role in the control of high affinity transport system for root nitrate acquisition in Lotus japonicus. Front Plant Sci 2022; 13:1042513. [PMID: 36438153 PMCID: PMC9687105 DOI: 10.3389/fpls.2022.1042513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
Nitrate is a key mineral nutrient required for plant growth and development. Plants have evolved sophisticated mechanisms to respond to changes of nutritional availability in the surrounding environment and the optimization of root nitrate acquisition under nitrogen starvation is crucial to cope with unfavoured condition of growth. In this study we present a general description of the regulatory transcriptional and spatial profile of expression of the Lotus japonicus nitrate transporter NRT2 family. Furthermore, we report a phenotypic characterization of two independent Ljnrt2.3 knock out mutants indicating the involvement of the LjNRT2.3 gene in the root nitrate acquisition and lateral root elongation pathways occurring in response to N starvation conditions. We also report an epistatic relationship between LjNRT2.3 and LjNRT2.1 suggesting a combined mode of action of these two genes in order to optimize the Lotus response to a prolonged N starvation.
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31
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Borrell AK, Wong ACS, George-Jaeggli B, van Oosterom EJ, Mace ES, Godwin ID, Liu G, Mullet JE, Klein PE, Hammer GL, McLean G, Hunt C, Jordan DR. Genetic modification of PIN genes induces causal mechanisms of stay-green drought adaptation phenotype. J Exp Bot 2022; 73:6711-6726. [PMID: 35961690 PMCID: PMC9629789 DOI: 10.1093/jxb/erac336] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 08/10/2022] [Indexed: 05/27/2023]
Abstract
The stay-green trait is recognized as a key drought adaptation mechanism in cereals worldwide. Stay-green sorghum plants exhibit delayed senescence of leaves and stems, leading to prolonged growth, a reduced risk of lodging, and higher grain yield under end-of-season drought stress. More than 45 quantitative trait loci (QTL) associated with stay-green have been identified, including two major QTL (Stg1 and Stg2). However, the contributing genes that regulate functional stay-green are not known. Here we show that the PIN FORMED family of auxin efflux carrier genes induce some of the causal mechanisms driving the stay-green phenotype in sorghum, with SbPIN4 and SbPIN2 located in Stg1 and Stg2, respectively. We found that nine of 11 sorghum PIN genes aligned with known stay-green QTL. In transgenic studies, we demonstrated that PIN genes located within the Stg1 (SbPIN4), Stg2 (SbPIN2), and Stg3b (SbPIN1) QTL regions acted pleiotropically to modulate canopy development, root architecture, and panicle growth in sorghum, with SbPIN1, SbPIN2, and SbPIN4 differentially expressed in various organs relative to the non-stay-green control. The emergent consequence of such modifications in canopy and root architecture is a stay-green phenotype. Crop simulation modelling shows that the SbPIN2 phenotype can increase grain yield under drought.
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Affiliation(s)
| | - Albert C S Wong
- University of Queensland, QAAFI, Brisbane, QLD 4072, Australia
| | - Barbara George-Jaeggli
- University of Queensland, Queensland Alliance for Agriculture and Food Innovation (QAAFI), Warwick, QLD 4370, Australia
- Agri-Science Queensland, Department of Agriculture & Fisheries, Warwick, QLD 4370, Australia
| | | | - Emma S Mace
- University of Queensland, Queensland Alliance for Agriculture and Food Innovation (QAAFI), Warwick, QLD 4370, Australia
- Agri-Science Queensland, Department of Agriculture & Fisheries, Warwick, QLD 4370, Australia
| | - Ian D Godwin
- University of Queensland, QAAFI, Brisbane, QLD 4072, Australia
| | - Guoquan Liu
- University of Queensland, QAAFI, Brisbane, QLD 4072, Australia
| | - John E Mullet
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, USA
| | - Patricia E Klein
- Department of Horticultural Sciences, Texas A&M University, College Station, TX 77843, USA
| | - Graeme L Hammer
- University of Queensland, QAAFI, Brisbane, QLD 4072, Australia
| | - Greg McLean
- University of Queensland, QAAFI, Brisbane, QLD 4072, Australia
| | - Colleen Hunt
- Agri-Science Queensland, Department of Agriculture & Fisheries, Warwick, QLD 4370, Australia
| | - David R Jordan
- University of Queensland, Queensland Alliance for Agriculture and Food Innovation (QAAFI), Warwick, QLD 4370, Australia
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Feng X, Jia L, Cai Y, Guan H, Zheng D, Zhang W, Xiong H, Zhou H, Wen Y, Hu Y, Zhang X, Wang Q, Wu F, Xu J, Lu Y. ABA-inducible DEEPER ROOTING 1 improves adaptation of maize to water deficiency. Plant Biotechnol J 2022; 20:2077-2088. [PMID: 35796628 PMCID: PMC9616520 DOI: 10.1111/pbi.13889] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/31/2022] [Accepted: 07/03/2022] [Indexed: 05/26/2023]
Abstract
Root architecture remodelling is critical for forage moisture in water-limited soil. DEEPER ROOTING 1 (DRO1) in Oryza, Arabidopsis, and Prunus has been reported to improve drought avoidance by promoting roots to grow downward and acquire water from deeper soil. In the present study, we found that ZmDRO1 responded more strongly to abscisic acid (ABA)/drought induction in Zea mays ssp. mexicana, an ancestral species of cultivated maize, than in B73. It was proposed that this is one of the reasons why Zea mays ssp. mexicana has a more noticeable change in the downward direction angle of the root and fewer biomass penalties under water-deficient conditions. Thus, a robust, synthetic ABA/drought-inducible promoter was used to control the expression of ZmDRO1B73 in Arabidopsis and cultivated maize for drought-resistant breeding. Interestingly, ABA-inducible ZmDRO1 promoted a larger downward root angle and improved grain yield by more than 40% under water-limited conditions. Collectively, these results revealed that different responses to ABA/drought induction of ZmDRO1 confer different drought avoidance abilities, and we demonstrated the application of ZmDRO1 via an ABA-inducible strategy to alter the root architecture of modern maize to improve drought adaptation in the field.
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Affiliation(s)
- Xuanjun Feng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaWenjingChina
- Maize Research Institute, Sichuan Agricultural UniversityWenjingChina
| | - Li Jia
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaWenjingChina
| | - Yunting Cai
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaWenjingChina
| | - Huarui Guan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaWenjingChina
| | - Dan Zheng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaWenjingChina
| | - Weixiao Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaWenjingChina
| | - Hao Xiong
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaWenjingChina
| | - Hanmei Zhou
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaWenjingChina
| | - Ying Wen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaWenjingChina
| | - Yue Hu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaWenjingChina
| | - Xuemei Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaWenjingChina
| | - Qingjun Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaWenjingChina
| | - Fengkai Wu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaWenjingChina
| | - Jie Xu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaWenjingChina
| | - Yanli Lu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaWenjingChina
- Maize Research Institute, Sichuan Agricultural UniversityWenjingChina
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Siangliw JL, Thunnom B, Natividad MA, Quintana MR, Chebotarov D, McNally KL, Lynch JP, Brown KM, Henry A. Response of Southeast Asian rice root architecture and anatomy phenotypes to drought stress. Front Plant Sci 2022; 13:1008954. [PMID: 36340400 PMCID: PMC9629509 DOI: 10.3389/fpls.2022.1008954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
Drought stress in Southeast Asia greatly affects rice production, and the rice root system plays a substantial role in avoiding drought stress. In this study, we examined the phenotypic and genetic correlations among root anatomical, morphological, and agronomic phenotypes over multiple field seasons. A set of >200 rice accessions from Southeast Asia (a subset of the 3000 Rice Genomes Project) was characterized with the aim to identify root morphological and anatomical phenotypes related to productivity under drought stress. Drought stress resulted in slight increases in the basal metaxylem and stele diameter of nodal roots. Although few direct correlations between root phenotypes and grain yield were identified, biomass was consistently positively correlated with crown root number and negatively correlated with stele diameter. The accessions with highest grain yield were characterized by higher crown root numbers and median metaxylem diameter and smaller stele diameter. Genome-wide association study (GWAS) revealed 162 and 210 significant SNPs associated with root phenotypes in the two seasons which resulted in identification of 59 candidate genes related to root development. The gene OsRSL3 was found in a QTL region for median metaxylem diameter. Four SNPs in OsRSL3 were found that caused amino acid changes and significantly associated with the root phenotype. Based on the haplotype analysis for median metaxylem diameter, the rice accessions studied were classified into five allele combinations in order to identify the most favorable haplotypes. The candidate genes and favorable haplotypes provide information useful for the genetic improvement of root phenotypes under drought stress.
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Affiliation(s)
- Jonaliza L. Siangliw
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Burin Thunnom
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Mignon A. Natividad
- Rice Breeding Innovations Platform, International Rice Research Institute, Los Baños, Philippines
| | - Marinell R. Quintana
- Rice Breeding Innovations Platform, International Rice Research Institute, Los Baños, Philippines
| | - Dmytro Chebotarov
- Rice Breeding Innovations Platform, International Rice Research Institute, Los Baños, Philippines
| | - Kenneth L. McNally
- Rice Breeding Innovations Platform, International Rice Research Institute, Los Baños, Philippines
| | - Jonathan P. Lynch
- Department of Plant Science, The Pennsylvania State University, University Park, PA, United States
| | - Kathleen M. Brown
- Department of Plant Science, The Pennsylvania State University, University Park, PA, United States
| | - Amelia Henry
- Rice Breeding Innovations Platform, International Rice Research Institute, Los Baños, Philippines
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Ingvordsen CH, Hendriks PW, Smith DJ, Bechaz KM, Rebetzke GJ. Seedling and field assessment of wheat (Triticum aestivum L.) dwarfing genes and their influence on root traits in multiple genetic backgrounds. J Exp Bot 2022; 73:6292-6306. [PMID: 35802045 PMCID: PMC9578352 DOI: 10.1093/jxb/erac306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Deployment of the Rht-B1b and Rht-D1b dwarfing genes helped facilitate the Green Revolution to increase wheat yields globally. Much is known of the influence of these genes on plant height and agronomic performance, but not of their effects on root architecture. We assessed 29 near-isogenic lines (NILs) representing 11 Green Revolution and alternative dwarfing genes across multiple genetic backgrounds for root architecture characteristics in controlled and field environments. Genetic background did not influence plant height, but had a small and significant (P<0.05) effect on root architecture. All dwarfing gene NILs were significantly (P<0.01) shorter compared with tall controls. The Green Revolution Rht-B1b and Rht-D1b sometimes had longer seedling roots but were not different from their respective tall controls for root depth in the field. The Rht8, Rht12, and Rht18 dwarfing gene NILs produced long seminal roots in seedling pouches, and a greater maximum rooting depth (MRD) and root penetration rate (RPR) in the field. Genotypic increases in MRD and RPR were strongly correlated with increased harvest index and grain yield, particularly in dry environments. Careful root phenotyping highlights the potential of novel dwarfing genes for wheat genetic improvement under water-limited conditions.
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Affiliation(s)
| | - Pieter-Willem Hendriks
- CSIRO, Agriculture and Food, Canberra ACTAustralia
- Charles Sturt University, School of Agriculture and Wine Sciences, Wagga-Wagga NSWAustralia
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Mandizvo T, Odindo AO, Mashilo J, Sibiya J, Beck-Pay SL. Phenotypic Variability of Root System Architecture Traits for Drought Tolerance among Accessions of Citron Watermelon ( Citrullus lanatus var. citroides (L.H. Bailey). Plants (Basel) 2022; 11:2522. [PMID: 36235386 PMCID: PMC9573351 DOI: 10.3390/plants11192522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/06/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023]
Abstract
Citron watermelon (Citrullus lanatus var. citroides) is a drought-tolerant cucurbit crop widely grown in sub-Saharan Africa in arid and semi-arid environments. The species is a C3 xerophyte used for multiple purposes, including intercropping with maize, and has a deep taproot system. The deep taproot system plays a key role in the species’ adaptation to dry conditions. Understanding the root system development of this crop could be useful to identify traits for breeding water-use efficient and drought-tolerant varieties. This study compared the root system architecture of citron watermelon accessions under water-stress conditions. Nine selected and drought-tolerant citron watermelon accessions were grown under non-stress (NS) and water stress (WS) conditions using the root rhizotron procedure in a glasshouse. The following root system architecture (RSA) traits were measured: root system width (RSW), root system depth (RSD), convex hull area (CHA), total root length (TRL), root branch count (RBC), total root volume (TRV), leaf area (LA), leaf number (LN), first seminal root length (FSRL), seminal root angle (SRA), root dry mass (RDM), shoot dry mass (SDM), root−shoot mass ratio (RSM), root mass ratio (RMR), shoot mass ratio (SMR) and root tissue density (RTD). The data collected on RSA traits were subjected to an analysis of variance (ANOVA), correlation and principal component analyses. ANOVA revealed a significant (p < 0.05) accession × water stress interaction effect for studied RSA traits. Under WS, RDM exhibited significant and positive correlations with RSM (r = 0.65), RMR (r = 0.66), RSD (r = 0.66), TRL (r = 0.60), RBC (r = 0.72), FSRL (r = 0.73) and LN (r = 0.70). The principal component analysis revealed high loading scores for the following RSA traits: RSW (0.89), RSD (0.97), TRL (0.99), TRV (0.90), TRL (0.99), RMR (0.96) and RDM (0.76). In conclusion, the study has shown that the identified RSA traits could be useful in crop improvement programmes for citron watermelon genotypes with enhanced drought adaptation for improved yield performance under drought-prone environments.
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Affiliation(s)
- Takudzwa Mandizvo
- School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Private BagX01, Scottsville, Pietermaritzburg 3209, South Africa
| | - Alfred Oduor Odindo
- School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Private BagX01, Scottsville, Pietermaritzburg 3209, South Africa
| | - Jacob Mashilo
- Limpopo Department of Agriculture and Rural Development, Agriculture Regulatory and Technology Development, Directorate, Towoomba Research Centre, Private Bag X1615, Bela-Bela 0480, South Africa
| | - Julia Sibiya
- School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Private BagX01, Scottsville, Pietermaritzburg 3209, South Africa
| | - Sascha Lynn Beck-Pay
- School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Private BagX01, Scottsville, Pietermaritzburg 3209, South Africa
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36
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Birt HWG, Tharp CL, Custer GF, Dini-Andreote F. Root phenotypes as modulators of microbial microhabitats. Front Plant Sci 2022; 13:1003868. [PMID: 36212354 PMCID: PMC9539067 DOI: 10.3389/fpls.2022.1003868] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 09/08/2022] [Indexed: 06/09/2023]
Abstract
Plant roots are colonized by a multitude of microbial taxa that dynamically influence plant health. Plant-microbe interactions at the root-soil interface occur at the micro-scale and are affected by variation in root phenotypes. Different root phenotypes can have distinct impacts on physical and chemical gradients at the root-soil interface, leading to heterogeneous microhabitats for microbial colonization. Microbes that influence plant physiology will establish across these heterogeneous microhabitats, and, therefore, exploiting variation in root phenotypes can allow for targeted manipulation of plant-associated microbes. In this mini-review, we discuss how changes in root anatomy and architecture can influence resource availability and the spatial configuration of microbial microhabitats. We then propose research priorities that integrate root phenotypes and microbial microhabitats for advancing the manipulation of root-associated microbiomes. We foresee the yet-unexplored potential to harness diverse root phenotypes as a new level of precision in microbiome management in plant-root systems.
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Smoczynska A, Pacak A, Grabowska A, Bielewicz D, Zadworny M, Singh K, Dolata J, Bajczyk M, Nuc P, Kesy J, Wozniak M, Ratajczak I, Harwood W, Karlowski WM, Jarmolowski A, Szweykowska-Kulinska Z. Excess nitrogen responsive HvMADS27 transcription factor controls barley root architecture by regulating abscisic acid level. Front Plant Sci 2022; 13:950796. [PMID: 36172555 PMCID: PMC9511987 DOI: 10.3389/fpls.2022.950796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 07/15/2022] [Indexed: 06/01/2023]
Abstract
Nitrogen (N) is an important element for plant growth and development. Although several studies have examined plants' response to N deficiency, studies on plants' response to excess N, which is common in fertilizer-based agrosystems, are limited. Therefore, the aim of this study was to examine the response of barley to excess N conditions, specifically the root response. Additionally, genomic mechanism of excess N response in barley was elucidated using transcriptomic technologies. The results of the study showed that barley MADS27 transcription factor was mainly expressed in the roots and its gene contained N-responsive cis-regulatory elements in the promoter region. Additionally, there was a significant decrease in HvMADS27 expression under excess N condition; however, its expression was not significantly affected under low N condition. Phenotypic analysis of the root system of HvMADS27 knockdown and overexpressing barley plants revealed that HvMADS27 regulates barley root architecture under excess N stress. Further analysis of wild-type (WT) and transgenic barley plants (hvmads27 kd and hvmads27 c-Myc OE) revealed that HvMADS27 regulates the expression of HvBG1 β-glucosidase, which in turn regulates abscisic acid (ABA) level in roots. Overall, the findings of this study showed that HvMADS27 expression is downregulated in barley roots under excess N stress, which induces HvBG1 expression, leading to the release of ABA from ABA-glucose conjugate, and consequent shortening of the roots.
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Affiliation(s)
- Aleksandra Smoczynska
- Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Andrzej Pacak
- Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Aleksandra Grabowska
- Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Dawid Bielewicz
- Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
- Center for Advanced Technology, Adam Mickiewicz University, Poznań, Poland
| | - Marcin Zadworny
- Institute of Dendrology, Polish Academy of Sciences, Kórnik, Poland
| | - Kashmir Singh
- Department of Biotechnology, Panjab University, Chandigarh, India
| | - Jakub Dolata
- Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Mateusz Bajczyk
- Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Przemyslaw Nuc
- Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Jacek Kesy
- Institute of Biology, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Toruń, Poland
| | - Magdalena Wozniak
- Department of Chemistry, Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Poznań, Poland
| | - Izabela Ratajczak
- Department of Chemistry, Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Poznań, Poland
| | - Wendy Harwood
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norfolk, United Kingdom
| | - Wojciech M. Karlowski
- Department of Computational Biology, Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University, Poznań, Poland
| | - Artur Jarmolowski
- Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Zofia Szweykowska-Kulinska
- Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
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Encinas‐Valero M, Esteban R, Hereş A, Vivas M, Fakhet D, Aranjuelo I, Solla A, Moreno G, Curiel Yuste J. Holm oak decline is determined by shifts in fine root phenotypic plasticity in response to belowground stress. New Phytol 2022; 235:2237-2251. [PMID: 35491749 PMCID: PMC9541754 DOI: 10.1111/nph.18182] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 04/20/2022] [Indexed: 06/14/2023]
Abstract
Climate change and pathogen outbreaks are the two major causes of decline in Mediterranean holm oak trees (Quercus ilex L. subsp. ballota (Desf.) Samp.). Crown-level changes in response to these stressful conditions have been widely documented but the responses of the root systems remain unexplored. The effects of environmental stress over roots and its potential role during the declining process need to be evaluated. We aimed to study how key morphological and architectural root parameters and nonstructural carbohydrates of roots are affected along a holm oak health gradient (i.e. within healthy, susceptible and declining trees). Holm oaks with different health statuses had different soil resource-uptake strategies. While healthy and susceptible trees showed a conservative resource-uptake strategy independently of soil nutrient availability, declining trees optimized soil resource acquisition by increasing the phenotypic plasticity of their fine root system. This increase in fine root phenotypic plasticity in declining holm oaks represents an energy-consuming strategy promoted to cope with the stress and at the expense of foliage maintenance. Our study describes a potential feedback loop resulting from strong unprecedented belowground stress that ultimately may lead to poor adaptation and tree death in the Spanish dehesa.
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Affiliation(s)
- Manuel Encinas‐Valero
- BC3‐Basque Centre for Climate ChangeScientific Campus of the University of the Basque CountryB/Sarriena s/n48940LeioaBizkaiaSpain
| | - Raquel Esteban
- Department of Plant Biology and EcologyUniversity of Basque Country (UPV/EHU)B/Sarriena s/n48940LeioaBizkaiaSpain
| | - Ana‐Maria Hereş
- BC3‐Basque Centre for Climate ChangeScientific Campus of the University of the Basque CountryB/Sarriena s/n48940LeioaBizkaiaSpain
- Department of Forest SciencesTransilvania University of BraşovSirul Beethoven‐1500123BraşovRomania
| | - María Vivas
- Faculty of ForestryInstitute for Dehesa Research (INDEHESA)Universidad de ExtremaduraAvenida Virgen del Puerto 210600PlasenciaCáceresSpain
| | - Dorra Fakhet
- Instituto de Agrobiotecnología (IdAB)Consejo Superior de Investigaciones Científicas (CSIC)‐Gobierno de NavarraAvenida Pamplona 12331192MutilvaSpain
| | - Iker Aranjuelo
- Instituto de Agrobiotecnología (IdAB)Consejo Superior de Investigaciones Científicas (CSIC)‐Gobierno de NavarraAvenida Pamplona 12331192MutilvaSpain
| | - Alejandro Solla
- Faculty of ForestryInstitute for Dehesa Research (INDEHESA)Universidad de ExtremaduraAvenida Virgen del Puerto 210600PlasenciaCáceresSpain
| | - Gerardo Moreno
- Faculty of ForestryInstitute for Dehesa Research (INDEHESA)Universidad de ExtremaduraAvenida Virgen del Puerto 210600PlasenciaCáceresSpain
| | - Jorge Curiel Yuste
- BC3‐Basque Centre for Climate ChangeScientific Campus of the University of the Basque CountryB/Sarriena s/n48940LeioaBizkaiaSpain
- IKERBASQUE – Basque Foundation for SciencePlaza Euskadi 5E‐48009BilbaoBizkaiaSpain
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Wegner LH. Empowering roots-Some current aspects of root bioenergetics. Front Plant Sci 2022; 13:853309. [PMID: 36051301 PMCID: PMC9424547 DOI: 10.3389/fpls.2022.853309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Roots of higher plants provide the shoot with nutrients and water. In exchange, they receive photosynthates, which serve both as energy source and building blocks for maintenance and growth. While studies in plant bioenergetics used to focus on photosynthesis, several more recent findings also aroused or renewed interest in energy conversion and allocation in roots. Root building costs were identified as a long-undervalued trait, which turned out to be highly relevant for stress tolerance and nutrient use efficiency. Reduced building costs per root length (e.g., by aerenchyma formation or by increasing the cell size) are beneficial for exploring the soil for nutrient-rich patches, especially in low-input agrosystems. Also, an apparent mismatch was frequently found between the root energy budget in the form of the ATP pool on the one side and the apparent costs on the other side, particularly the costs of membrane transport under stress conditions, e.g., the Na+ detoxification costs resulting from Na+ sequestration at the plasma membrane. Ion transport across the plasma membrane (and also endomembranes) is coupled to the proton motive force usually believed to be exclusively generated by H+ ATPases. Recently, an alternative mechanism, the biochemical pH clamp, was identified which relies on H+ formation and binding in the apoplast and the cytosol, respectively, driven by metabolism (so-called active buffering). On this background, several aspects of root bioenergetics are discussed. These are (1) root respiration in soil, with a critical view on calorimetric vs. gas exchange measurements; (2) processes of energy conversion in mitochondria with a special focus on the role of the alternative oxidases, which allow adjusting carbon flow through metabolic pathways to membrane transport processes; and (3) energy allocation, in particular to transport across the plasma membrane forming the interface to soil solution. A concluding remark is dedicated to modeling root bioenergetics for optimizing further breeding strategies. Apparent "energy spoilers" may bestow the plant with a yet unidentified advantage only unfolding their beneficial effect under certain environmental conditions.
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Li Q, Li H, Yang Z, Cheng X, Zhao Y, Qin L, Bisseling T, Cao Q, Willemsen V. Plant growth-promoting rhizobacterium Pseudomonas sp. CM11 specifically induces lateral roots. New Phytol 2022; 235:1575-1588. [PMID: 35510807 PMCID: PMC9546010 DOI: 10.1111/nph.18199] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 04/28/2022] [Indexed: 06/10/2023]
Abstract
Plant growth-promoting rhizobacteria are involved in altering secondary root (SR) formation, but hitherto there has been no distinction between the different types of SRs upon induction of soil biota, and the genetic pathways involved. By using plate and soil systems, we studied the effects of the Pseudomonas strains CM11 and WCS417 on plant performance with a focus on root development. Through a combination of cellular, molecular and genetic analyses, we investigated the type of SRs induced upon CM11 and WCS417 root inoculation using genetic pathways associated with specific SR types. CM11 was shown to affect the root architecture differently from WCS417. CM11 inoculation leads to primary root arrest, whereas WCS417 reveals a longer primary root. Both CM11 and WCS417 activate the PLETHORA 3,5,7-controlled lateral root pathway, rather than the WUSCHEL-RELATED HOMEOBOX 11,12-controlled adventitious (lateral) root pathway. In addition, CM11 promotes plant growth in model and various crop species. It improves plant fitness traits, such as bigger shoots, faster bolting and higher yield in terms of seeds. Our results indicate that the root system architecture can be promoted by activation of PLETHORA 3,5,7 dependent primed lateral pre-branch sites upon inoculation with CM11, which creates great potential to gain a better understanding of root plasticity.
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Affiliation(s)
- Qian Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignBeijing University of AgricultureBeijing102206China
- Cluster of Plant Developmental BiologyLaboratory of Molecular BiologyWageningen University & ResearchDroevendaalsesteeg 16708 PBWageningenthe Netherlands
- Beijing Bei Nong Enterprise Management Co. LtdBeijing102206China
| | - Huchen Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignBeijing University of AgricultureBeijing102206China
- Cluster of Plant Developmental BiologyLaboratory of Molecular BiologyWageningen University & ResearchDroevendaalsesteeg 16708 PBWageningenthe Netherlands
| | - Zhuang Yang
- Cluster of Plant Developmental BiologyLaboratory of Molecular BiologyWageningen University & ResearchDroevendaalsesteeg 16708 PBWageningenthe Netherlands
| | - Xu Cheng
- Cluster of Plant Developmental BiologyLaboratory of Molecular BiologyWageningen University & ResearchDroevendaalsesteeg 16708 PBWageningenthe Netherlands
| | - Yaceng Zhao
- College of Plant Science and TechnologyBeijing Key Laboratory for Agricultural Application and New TechniqueBeijing University of AgricultureBeijing102206China
| | - Ling Qin
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignBeijing University of AgricultureBeijing102206China
- College of Plant Science and TechnologyBeijing Key Laboratory for Agricultural Application and New TechniqueBeijing University of AgricultureBeijing102206China
| | - Ton Bisseling
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignBeijing University of AgricultureBeijing102206China
- Cluster of Plant Developmental BiologyLaboratory of Molecular BiologyWageningen University & ResearchDroevendaalsesteeg 16708 PBWageningenthe Netherlands
| | - Qingqin Cao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignBeijing University of AgricultureBeijing102206China
- College of Plant Science and TechnologyBeijing Key Laboratory for Agricultural Application and New TechniqueBeijing University of AgricultureBeijing102206China
| | - Viola Willemsen
- Cluster of Plant Developmental BiologyLaboratory of Molecular BiologyWageningen University & ResearchDroevendaalsesteeg 16708 PBWageningenthe Netherlands
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Barłóg P, Grzebisz W, Łukowiak R. Fertilizers and Fertilization Strategies Mitigating Soil Factors Constraining Efficiency of Nitrogen in Plant Production. Plants (Basel) 2022; 11:1855. [PMID: 35890489 PMCID: PMC9319167 DOI: 10.3390/plants11141855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
Fertilizer Use Efficiency (FUE) is a measure of the potential of an applied fertilizer to increase its impact on the uptake and utilization of nitrogen (N) present in the soil/plant system. The productivity of N depends on the supply of those nutrients in a well-defined stage of yield formation that are decisive for its uptake and utilization. Traditionally, plant nutritional status is evaluated by using chemical methods. However, nowadays, to correct fertilizer doses, the absorption and reflection of solar radiation is used. Fertilization efficiency can be increased not only by adjusting the fertilizer dose to the plant's requirements, but also by removing all of the soil factors that constrain nutrient uptake and their transport from soil to root surface. Among them, soil compaction and pH are relatively easy to correct. The goal of new the formulas of N fertilizers is to increase the availability of N by synchronization of its release with the plant demand. The aim of non-nitrogenous fertilizers is to increase the availability of nutrients that control the effectiveness of N present in the soil/plant system. A wide range of actions is required to reduce the amount of N which can pollute ecosystems adjacent to fields.
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Liu CC, Liu YN, Cheng JF, Guo R, Tian L, Wang B. Dual Roles of OsGH3.2 in Modulating Rice Root Morphology and Affecting Arbuscular Mycorrhizal Symbiosis. Front Plant Sci 2022; 13:853435. [PMID: 35481141 PMCID: PMC9037295 DOI: 10.3389/fpls.2022.853435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
Several angiosperm GRETCHEN HAGEN 3 (GH3) genes, including tomato SlGH3.4 and rice OsGH3.2 are induced during arbuscular mycorrhizal (AM) symbiosis, but their functions remain largely unclear. Recently, tomato SlGH3.4 was suggested to negatively regulate arbuscule incidence via decreasing auxin levels in colonized cells. In this study, by acquiring rice OsGH3.2pro:β-glucuronidase (GUS) transgenic plants and generating Osgh3.2 mutants via CRISPR/Cas9 technique, the roles of OsGH3.2 in modulating rice root morphology and affecting AM symbiosis were investigated through time course experiments. Unlike SlGH3.4, OsGH3.2 showed asymbiotic expression in rice young lateral roots, and its mutation resulted in a "shallow" root architecture. Such root morphological change was also observed under symbiotic condition and it likely promoted AM fungal colonization, as the mutants exhibited higher colonization levels and arbuscule incidence than wild-type at early stages. Similar to SlGH3.4, OsGH3.2 showed symbiotic expression in cortical cells that have formed mature arbuscules. At late stages of symbiosis, Osgh3.2 mutants showed elongated cortical cells and larger arbuscules than wild-type, indicating elevated auxin level in the colonized cells. Together, these results revealed both asymbiotic and symbiotic roles of OsGH3.2 in modulating rice root architecture and controlling auxin levels in arbusculated cells, which further affected colonization rate and arbuscule phenotype.
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43
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Zboralski A, Saadia H, Novinscak A, Filion M. Interplay between Arabidopsis thaliana Genotype, Plant Growth and Rhizosphere Colonization by Phytobeneficial Phenazine-Producing Pseudomonas chlororaphis. Microorganisms 2022; 10. [PMID: 35336236 DOI: 10.3390/microorganisms10030660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 12/19/2022] Open
Abstract
Rhizosphere colonization by phytobeneficial Pseudomonas spp. is pivotal in triggering their positive effects on plant health. Many Pseudomonas spp. Determinants, involved in rhizosphere colonization, have already been deciphered. However, few studies have explored the role played by specific plant genes in rhizosphere colonization by these bacteria. Using isogenic Arabidopsis thaliana mutants, we studied the effect of 20 distinct plant genes on rhizosphere colonization by two phenazine-producing P. chlororaphis strains of biocontrol interest, differing in their colonization abilities: DTR133, a strong rhizosphere colonizer and ToZa7, which displays lower rhizocompetence. The investigated plant mutations were related to root exudation, immunity, and root system architecture. Mutations in smb and shv3, both involved in root architecture, were shown to positively affect rhizosphere colonization by ToZa7, but not DTR133. While these strains were not promoting plant growth in wild-type plants, increased plant biomass was measured in inoculated plants lacking fez, wrky70, cbp60g, pft1 and rlp30, genes mostly involved in plant immunity. These results point to an interplay between plant genotype, plant growth and rhizosphere colonization by phytobeneficial Pseudomonas spp. Some of the studied genes could become targets for plant breeding programs to improve plant-beneficial Pseudomonas rhizocompetence and biocontrol efficiency in the field.
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Nadeem M, Wu J, Ghaffari H, Kedir AJ, Saleem S, Mollier A, Singh J, Cheema M. Understanding the Adaptive Mechanisms of Plants to Enhance Phosphorus Use Efficiency on Podzolic Soils in Boreal Agroecosystems. Front Plant Sci 2022; 13:804058. [PMID: 35371179 PMCID: PMC8965363 DOI: 10.3389/fpls.2022.804058] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 01/28/2022] [Indexed: 06/14/2023]
Abstract
Being a macronutrient, phosphorus (P) is the backbone to complete the growth cycle of plants. However, because of low mobility and high fixation, P becomes the least available nutrient in podzolic soils; hence, enhancing phosphorus use efficiency (PUE) can play an important role in different cropping systems/crop production practices to meet ever-increasing demands in food, fiber, and fuel. Additionally, the rapidly decreasing mineral phosphate rocks/stocks forced to explore alternative resources and methods to enhance PUE either through improved seed P reserves and their remobilization, P acquisition efficiency (PAE), or plant's internal P utilization efficiency (IPUE) or both for sustainable P management strategies. The objective of this review article is to explore and document important domains to enhance PUE in crop plants grown on Podzol in a boreal agroecosystem. We have discussed P availabilities in podzolic soils, root architecture and morphology, root exudates, phosphate transporters and their role in P uptake, different contributors to enhance PAE and IPUE, and strategies to improve plant PUE in crops grown on podzolic soils deficient in P and acidic in nature.
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Affiliation(s)
- Muhammad Nadeem
- School of Science and the Environment, Memorial University of Newfoundland, Corner Brook, NL, Canada
| | - Jiaxu Wu
- School of Science and the Environment, Memorial University of Newfoundland, Corner Brook, NL, Canada
| | | | - Amana Jemal Kedir
- School of Science and the Environment, Memorial University of Newfoundland, Corner Brook, NL, Canada
- Environmental Science Program, Memorial University of Newfoundland, St. John's, NL, Canada
| | - Shamila Saleem
- Department of Agriculture Extension, Government of Punjab, Khanewal, Pakistan
| | - Alain Mollier
- INRAE, UMR 1391 ISPA, Bordeaux Science Agro, Villenave d'Ornon, France
| | - Jaswinder Singh
- Department of Plant Science, McGill University, Ste-Anne-de-Bellevue, QC, Canada
| | - Mumtaz Cheema
- School of Science and the Environment, Memorial University of Newfoundland, Corner Brook, NL, Canada
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Chandrasekhar A, Julkowska MM. A Mathematical Framework for Analyzing Wild Tomato Root Architecture. J Comput Biol 2022; 29:306-316. [PMID: 35235373 DOI: 10.1089/cmb.2021.0361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The root architecture of wild tomato, Solanum pimpinellifolium, can be viewed as a network connecting the main root to various lateral roots. Several constraints have been proposed on the structure of such biological networks, including minimizing the total amount of wire necessary for constructing the root architecture (wiring cost), and minimizing the distances (and by extension, resource transport time) between the base of the main root and the lateral roots (conduction delay). For a given set of lateral root tip locations, these two objectives compete with each other-optimizing one results in poorer performance on the other-raising the question how well S. pimpinellifolium root architectures balance this network design trade-off in a distributed manner. In this study, we describe how well S. pimpinellifolium roots resolve this trade-off using the theory of Pareto optimality. We describe a mathematical model for characterizing the network structure and design trade-offs governing the structure of S. pimpinellifolium root architecture. We demonstrate that S. pimpinellifolium arbors construct architectures that are more optimal than would be expected by chance. Finally, we use this framework to quantify structural differences between arbors grown in the presence of salt stress, classify arbors into four distinct architectural ideotypes, and test for heritability of variation in root architecture structure.
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Affiliation(s)
- Arjun Chandrasekhar
- Department of Computer Science, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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46
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Ndoye MS, Burridge J, Bhosale R, Grondin A, Laplaze L. Root traits for low input agroecosystems in Africa: Lessons from three case studies. Plant Cell Environ 2022; 45:637-649. [PMID: 35037274 DOI: 10.1111/pce.14256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 12/09/2021] [Indexed: 06/14/2023]
Abstract
In many regions across Africa, agriculture is largely based on low-input and small-holder farming systems that use little inorganic fertilisers and have limited access to irrigation and mechanisation. Improving agricultural practices and developing new cultivars adapted to these environments, where production already suffers from climate change, is a major priority for food security. Here, we illustrate how breeding for specific root traits could improve crop resilience in Africa using three case studies covering very contrasting low-input agroecosystems. We first review how greater basal root whorl number and longer and denser root hairs increased P acquisition efficiency and yield in common bean in South East Africa. We then discuss how water-saving strategies, root hair density and deep root growth could be targeted to improve sorghum and pearl millet yield in West Africa. Finally, we evaluate how breeding for denser root systems in the topsoil and interactions with arbuscular mycorrhizal fungi could be mobilised to optimise water-saving alternate wetting and drying practices in West African rice agroecosystems. We conclude with a discussion on how to evaluate the utility of root traits and how to make root trait selection feasible for breeders so that improved varieties can be made available to farmers through participatory approaches.
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Affiliation(s)
- Mame S Ndoye
- CERAAS, Thies Escale, Thies, Senegal
- LMI LAPSE, Centre de Recherche ISRA/IRD de Bel Air, Dakar, Senegal
- UMR DIADE, Université de Montpellier, IRD, CIRAD, Montpellier, France
| | - James Burridge
- UMR DIADE, Université de Montpellier, IRD, CIRAD, Montpellier, France
| | - Rahul Bhosale
- Future Food Beacon of Excellence and School of Biosciences, University of Nottingham, Nottingham, UK
| | - Alexandre Grondin
- CERAAS, Thies Escale, Thies, Senegal
- LMI LAPSE, Centre de Recherche ISRA/IRD de Bel Air, Dakar, Senegal
- UMR DIADE, Université de Montpellier, IRD, CIRAD, Montpellier, France
| | - Laurent Laplaze
- LMI LAPSE, Centre de Recherche ISRA/IRD de Bel Air, Dakar, Senegal
- UMR DIADE, Université de Montpellier, IRD, CIRAD, Montpellier, France
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47
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Schneider HM, Lor VSN, Hanlon MT, Perkins A, Kaeppler SM, Borkar AN, Bhosale R, Zhang X, Rodriguez J, Bucksch A, Bennett MJ, Brown KM, Lynch JP. Root angle in maize influences nitrogen capture and is regulated by calcineurin B-like protein (CBL)-interacting serine/threonine-protein kinase 15 (ZmCIPK15). Plant Cell Environ 2022; 45:837-853. [PMID: 34169548 PMCID: PMC9544310 DOI: 10.1111/pce.14135] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 06/05/2021] [Accepted: 06/16/2021] [Indexed: 05/06/2023]
Abstract
Crops with reduced nutrient and water requirements are urgently needed in global agriculture. Root growth angle plays an important role in nutrient and water acquisition. A maize diversity panel of 481 genotypes was screened for variation in root angle employing a high-throughput field phenotyping platform. Genome-wide association mapping identified several single nucleotide polymorphisms (SNPs) associated with root angle, including one located in the root expressed CBL-interacting serine/threonine-protein kinase 15 (ZmCIPK15) gene (LOC100285495). Reverse genetic studies validated the functional importance of ZmCIPK15, causing a approximately 10° change in root angle in specific nodal positions. A steeper root growth angle improved nitrogen capture in silico and in the field. OpenSimRoot simulations predicted at 40 days of growth that this change in angle would improve nitrogen uptake by 11% and plant biomass by 4% in low nitrogen conditions. In field studies under suboptimal N availability, the cipk15 mutant with steeper growth angles had 18% greater shoot biomass and 29% greater shoot nitrogen accumulation compared to the wild type after 70 days of growth. We propose that a steeper root growth angle modulated by ZmCIPK15 will facilitate efforts to develop new crop varieties with optimal root architecture for improved performance under edaphic stress.
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Affiliation(s)
- Hannah M. Schneider
- Department of Plant ScienceThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Vai Sa Nee Lor
- Department of AgronomyUniversity of WisconsinMadisonWisconsinUSA
| | - Meredith T. Hanlon
- Department of Plant ScienceThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Alden Perkins
- Department of Plant ScienceThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | | | - Aditi N. Borkar
- School of Veterinary Medicine and ScienceUniversity of NottinghamSutton BoningtonUK
| | - Rahul Bhosale
- Future Food Beacon of Excellence and School of BiosciencesUniversity of NottinghamNottinghamUK
| | - Xia Zhang
- Department of AgronomyUniversity of WisconsinMadisonWisconsinUSA
| | - Jonas Rodriguez
- Department of AgronomyUniversity of WisconsinMadisonWisconsinUSA
| | - Alexander Bucksch
- Department of Plant BiologyUniversity of GeorgiaAthensGeorgiaUSA
- Warnell School of Forestry and Natural ResourcesUniversity of GeorgiaAthensGeorgiaUSA
- Institute of BioinformaticsUniversity of GeorgiaAthensGeorgiaUSA
| | - Malcolm J. Bennett
- Future Food Beacon of Excellence and School of BiosciencesUniversity of NottinghamNottinghamUK
| | - Kathleen M. Brown
- Department of Plant ScienceThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Jonathan P. Lynch
- Department of Plant ScienceThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
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48
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Huang C, Butterly CR, Moody D, Pourkheirandish M. Mini review: Targeting below-ground plant performance to improve nitrogen use efficiency (NUE) in barley. Front Genet 2022; 13:1060304. [PMID: 36935938 PMCID: PMC10017981 DOI: 10.3389/fgene.2022.1060304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 12/19/2022] [Indexed: 03/06/2023] Open
Abstract
Nitrogen (N) fertilizer is one of the major inputs for grain crops including barley and its usage is increasing globally. However, N use efficiency (NUE) is low in cereal crops, leading to higher production costs, unfulfilled grain yield potential and environmental hazards. N uptake is initiated from plant root tips but a very limited number of studies have been conducted on roots relevant to NUE specifically. In this review, we used barley, the fourth most important cereal crop, as the primary study plant to investigate this topic. We first highlighted the recent progress and study gaps in genetic analysis results, primarily, the genome-wide association study (GWAS) regarding both biological and statistical considerations. In addition, different factors contributing to NUE are discussed in terms of root morphological and anatomical traits, as well as physiological mechanisms such as N transporter activities and hormonal regulation.
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Affiliation(s)
- Claire Huang
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, VIC, Australia
| | - Clayton R. Butterly
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, VIC, Australia
- *Correspondence: Clayton R. Butterly, ; Mohammad Pourkheirandish,
| | - David Moody
- InterGrain Pty Ltd., Bibra Lake, WA, Australia
| | - Mohammad Pourkheirandish
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, VIC, Australia
- *Correspondence: Clayton R. Butterly, ; Mohammad Pourkheirandish,
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49
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Hamzah Saleem M, Usman K, Rizwan M, Al Jabri H, Alsafran M. Functions and strategies for enhancing zinc availability in plants for sustainable agriculture. Front Plant Sci 2022; 13:1033092. [PMID: 36275511 PMCID: PMC9586378 DOI: 10.3389/fpls.2022.1033092] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 09/21/2022] [Indexed: 05/13/2023]
Abstract
Zinc (Zn), which is regarded as a crucial micronutrient for plants, and is considered to be a vital micronutrient for plants. Zn has a significant role in the biochemistry and metabolism of plants owing to its significance and toxicity for biological systems at specific Zn concentrations, i.e., insufficient or harmful above the optimal range. It contributes to several cellular and physiological activities of plants and promotes plant growth, development, and yield. Zn is an important structural, enzymatic, and regulatory component of many proteins and enzymes. Consequently, it is essential to understand the interplay and chemistry of Zn in soil, its absorption, transport, and the response of plants to Zn deficiency, as well as to develop sustainable strategies for Zn deficiency in plants. Zn deficiency appears to be a widespread and prevalent issue in crops across the world, resulting in severe production losses that compromise nutritional quality. Considering this, enhancing Zn usage efficiency is the most effective strategy, which entails improving the architecture of the root system, absorption of Zn complexes by organic acids, and Zn uptake and translocation mechanisms in plants. Here, we provide an overview of various biotechnological techniques to improve Zn utilization efficiency and ensure the quality of crop. In light of the current status, an effort has been made to further dissect the absorption, transport, assimilation, function, deficiency, and toxicity symptoms caused by Zn in plants. As a result, we have described the potential information on diverse solutions, such as root structure alteration, the use of biostimulators, and nanomaterials, that may be used efficiently for Zn uptake, thereby assuring sustainable agriculture.
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Affiliation(s)
| | - Kamal Usman
- Agricultural Research Station, Office of VP for Research and Graduate Studies, Qatar University, Doha, Qatar
| | | | - Hareb Al Jabri
- Center for Sustainable Development (CSD), College of Arts and Sciences, Qatar University, Doha, Qatar
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Mohammed Alsafran
- Agricultural Research Station, Office of VP for Research and Graduate Studies, Qatar University, Doha, Qatar
- Central Laboratories Unit (CLU), Office of VP for Research and Graduate Studies, Qatar University, Doha, Qatar
- *Correspondence: Mohammed Alsafran,
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50
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Montagnoli A, Chiatante D, Godbold DL, Koike T, Rewald B, Dumroese RK. Editorial: Modulation of Growth and Development of Tree Roots in Forest Ecosystems. Front Plant Sci 2022; 13:850163. [PMID: 35242162 PMCID: PMC8886106 DOI: 10.3389/fpls.2022.850163] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 01/17/2022] [Indexed: 05/02/2023]
Affiliation(s)
- Antonio Montagnoli
- Laboratory of Environmental and Applied Botany, Department of Biotechnology and Life Science, University of Insubria, Varese, Italy
- *Correspondence: Antonio Montagnoli
| | - Donato Chiatante
- Laboratory of Environmental and Applied Botany, Department of Biotechnology and Life Science, University of Insubria, Varese, Italy
| | - Douglas L. Godbold
- Department of Forest and Soil Sciences, Institute of Forest Ecology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
- Department of Landscape Carbon Deposition, Global Change Research Institute, Academy of Sciences of the Czech Republic, Ceske Budejovice, Czechia
| | - Takayoshi Koike
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Boris Rewald
- Department of Forest and Soil Sciences, Institute of Forest Ecology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
| | - R. Kasten Dumroese
- Rocky Mountain Research Station, U.S. Department of Agriculture Forest Service, Moscow, ID, United States
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