1
|
Mohana Pradeep RK, Rakesh V, Boopathi N, Siva M, Kousalya S, Nagendran K, Karthikeyan G. Emerging challenges in the management of Orthotospoviruses in Indian agriculture. Virology 2024; 593:110029. [PMID: 38382160 DOI: 10.1016/j.virol.2024.110029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/08/2024] [Accepted: 02/12/2024] [Indexed: 02/23/2024]
Abstract
Orthotospoviruses, a genera of negative-sense ssRNA viruses transmitted by thrips, have gained significant attention in recent years due to their detrimental impact on diverse crops, causing substantial economic losses and posing threats to food security. Orthotospoviruses are characterised by a wide range of symptoms in plants, including chlorotic/necrotic spots, vein banding, and fruit deformation. Seven species, including four definite and three tentative species in the genus Orthotospovirus, have so far been documented on the crops of the Indian subcontinent. Management of Orthotospoviruses under field conditions is challenging since they have a wide host range, adaptation to versatile environmental conditions, a lack of promising resistance sources, and the ubiquitous nature of thrips and their transmission through a propagative manner. Our present review elucidates the significance, molecular biology and evolutionary relationship of Orthotospoviruses; vector population; and possible management strategies for Orthotospoviruses and their vectors in the scenario of the Indian subcontinent.
Collapse
Affiliation(s)
- R K Mohana Pradeep
- Department of Plant Pathology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, 641003, India
| | - V Rakesh
- Insect Vector Laboratory, Advanced Centre for Plant Virology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - N Boopathi
- Department of Plant Pathology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, 641003, India
| | - M Siva
- Department of Plant Pathology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, 641003, India
| | - S Kousalya
- Department of Plant Pathology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, 641003, India
| | - K Nagendran
- Division of Crop Protection, ICAR-Indian Institute of Vegetable Research, Varanasi, 221005, India
| | - G Karthikeyan
- Department of Plant Pathology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, 641003, India.
| |
Collapse
|
2
|
Zhu F, Cao MY, Zhang QP, Mohan R, Schar J, Mitchell M, Chen H, Liu F, Wang D, Fu ZQ. Join the green team: Inducers of plant immunity in the plant disease sustainable control toolbox. J Adv Res 2024; 57:15-42. [PMID: 37142184 PMCID: PMC10918366 DOI: 10.1016/j.jare.2023.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/13/2023] [Accepted: 04/25/2023] [Indexed: 05/06/2023] Open
Abstract
BACKGROUND Crops are constantly attacked by various pathogens. These pathogenic microorganisms, such as fungi, oomycetes, bacteria, viruses, and nematodes, threaten global food security by causing detrimental crop diseases that generate tremendous quality and yield losses worldwide. Chemical pesticides have undoubtedly reduced crop damage; however, in addition to increasing the cost of agricultural production, the extensive use of chemical pesticides comes with environmental and social costs. Therefore, it is necessary to vigorously develop sustainable disease prevention and control strategies to promote the transition from traditional chemical control to modern green technologies. Plants possess sophisticated and efficient defense mechanisms against a wide range of pathogens naturally. Immune induction technology based on plant immunity inducers can prime plant defense mechanisms and greatly decrease the occurrence and severity of plant diseases. Reducing the use of agrochemicals is an effective way to minimize environmental pollution and promote agricultural safety. AIM OF REVIEW The purpose of this workis to offer valuable insights into the current understanding and future research perspectives of plant immunity inducers and their uses in plant disease control, ecological and environmental protection, and sustainable development of agriculture. KEY SCIENTIFIC CONCEPTS OF REVIEW In this work, we have introduced the concepts of sustainable and environment-friendly concepts of green disease prevention and control technologies based on plant immunity inducers. This article comprehensively summarizes these recent advances, emphasizes the importance of sustainable disease prevention and control technologies for food security, and highlights the diverse functions of plant immunity inducers-mediated disease resistance. The challenges encountered in the potential applications of plant immunity inducers and future research orientation are also discussed.
Collapse
Affiliation(s)
- Feng Zhu
- College of Plant Protection, Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China.
| | - Meng-Yao Cao
- College of Plant Protection, Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Qi-Ping Zhang
- College of Plant Protection, Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | | | - Jacob Schar
- Department of Biological Sciences, University of South Carolina, Columbia, SC 29208, USA
| | | | - Huan Chen
- Department of Biological Sciences, University of South Carolina, Columbia, SC 29208, USA; Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food Quality and Safety State Key Laboratory Cultivation Base of Ministry of Science and Technology, Nanjing, Jiangsu 210014, China
| | - Fengquan Liu
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food Quality and Safety State Key Laboratory Cultivation Base of Ministry of Science and Technology, Nanjing, Jiangsu 210014, China
| | - Daowen Wang
- State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, and Center for Crop Genome Engineering, Henan Agricultural University, Zhengzhou 450002, China
| | - Zheng Qing Fu
- Department of Biological Sciences, University of South Carolina, Columbia, SC 29208, USA.
| |
Collapse
|
3
|
Gowtham HG, Hema P, Murali M, Shilpa N, Nataraj K, Basavaraj GL, Singh SB, Aiyaz M, Udayashankar AC, Amruthesh KN. Fungal Endophytes as Mitigators against Biotic and Abiotic Stresses in Crop Plants. J Fungi (Basel) 2024; 10:116. [PMID: 38392787 PMCID: PMC10890593 DOI: 10.3390/jof10020116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/23/2024] [Accepted: 01/26/2024] [Indexed: 02/24/2024] Open
Abstract
The escalating global food demand driven by a gradually expanding human population necessitates strategies to improve agricultural productivity favorably and mitigate crop yield loss caused by various stressors (biotic and abiotic). Biotic stresses are caused by phytopathogens, pests, and nematodes, along with abiotic stresses like salt, heat, drought, and heavy metals, which pose serious risks to food security and agricultural productivity. Presently, the traditional methods relying on synthetic chemicals have led to ecological damage through unintended impacts on non-target organisms and the emergence of microbes that are resistant to them. Therefore, addressing these challenges is essential for economic, environmental, and public health concerns. The present review supports sustainable alternatives, emphasizing the possible application of fungal endophytes as innovative and eco-friendly tools in plant stress management. Fungal endophytes demonstrate capabilities for managing plants against biotic and abiotic stresses via the direct or indirect enhancement of plants' innate immunity. Moreover, they contribute to elevated photosynthesis rates, stimulate plant growth, facilitate nutrient mineralization, and produce bioactive compounds, hormones, and enzymes, ultimately improving overall productivity and plant stress resistance. In conclusion, harnessing the potentiality of fungal endophytes represents a promising approach toward the sustainability of agricultural practices, offering effective alternative solutions to reduce reliance on chemical treatments and address the challenges posed by biotic and abiotic stresses. This approach ensures long-term food security and promotes environmental health and economic viability in agriculture.
Collapse
Affiliation(s)
- H G Gowtham
- Department of Studies and Research in Food Science and Nutrition, KSOU, Mysuru 570006, Karnataka, India
| | - P Hema
- Department of Studies in Botany, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - Mahadevamurthy Murali
- Department of Studies in Botany, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - N Shilpa
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - K Nataraj
- Department of Studies in Botany, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
- PG Department of Botany, Maharani's Science College for Women, JLB Road, Mysuru 570005, Karnataka, India
| | - G L Basavaraj
- PG Department of Botany, Maharani's Science College for Women, JLB Road, Mysuru 570005, Karnataka, India
| | - Sudarshana Brijesh Singh
- Department of Studies in Botany, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - Mohammed Aiyaz
- Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - A C Udayashankar
- Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - Kestur Nagaraj Amruthesh
- Department of Studies in Botany, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| |
Collapse
|
4
|
Waqar S, Bhat AA, Khan AA. Endophytic fungi: Unravelling plant-endophyte interaction and the multifaceted role of fungal endophytes in stress amelioration. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108174. [PMID: 38070242 DOI: 10.1016/j.plaphy.2023.108174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/23/2023] [Accepted: 11/07/2023] [Indexed: 02/15/2024]
Abstract
Endophytic fungi colonize interior plant tissue and mostly form mutualistic associations with their host plant. Plant-endophyte interaction is a complex mechanism and is currently a focus of research to understand the underlying mechanism of endophyte asymptomatic colonization, the process of evading plant immune response, modulation of gene expression, and establishment of a balanced mutualistic relationship. Fungal endophytes rely on plant hosts for nutrients, shelter, and transmission and improve the host plant's tolerance against biotic stresses, including -herbivores, nematodes, bacterial, fungal, viral, nematode, and other phytopathogens. Endophytic fungi have been reported to improve plant health by reducing and eradicating the harmful effect of phytopathogens through competition for space or nutrients, mycoparasitism, and through direct or indirect defense systems by producing secondary metabolites as well as by induced systemic resistance (ISR). Additionally, for efficient crop improvement, practicing them would be a fruitful step for a sustainable approach. This review article summarizes the current research progress in plant-endophyte interaction and the fungal endophyte mechanism to overcome host defense responses, their subsequent colonization, and the establishment of a balanced mutualistic interaction with host plants. This review also highlighted the potential of fungal endophytes in the amelioration of biotic stress. We have also discussed the relevance of various bioactive compounds possessing antimicrobial potential against a variety of agricultural pathogens. Furthermore, endophyte-mediated ISR is also emphasized.
Collapse
Affiliation(s)
- Sonia Waqar
- Section of Environmental Botany and Plant Pathology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India.
| | - Adil Ameen Bhat
- Section of Environmental Botany and Plant Pathology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India.
| | - Abrar Ahmad Khan
- Section of Environmental Botany and Plant Pathology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India.
| |
Collapse
|
5
|
Zhao H, Ding X, Chu X, Zhang H, Wang X, Zhang X, Liu H, Zhang X, Yin Z, Li Y, Ding X. Plant immune inducer ZNC promotes rutin accumulation and enhances resistance to Botrytis cinerea in tomato. STRESS BIOLOGY 2023; 3:36. [PMID: 37676331 PMCID: PMC10444710 DOI: 10.1007/s44154-023-00106-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 07/09/2023] [Indexed: 09/08/2023]
Abstract
Gray mold is a destructive disease caused by Botrytis cinerea, a pervasive plant pathogen, which poses a threat to both tomato growth and postharvest storage. The utilization of induced resistance presents a potential strategy for combating plant pathogenic attacks. ZNC (zhinengcong), an extract derived from the endophytic fungus Paecilomyces variotii, has been discovered to play a vital role in preventing diverse forms of bacterial infections. Nevertheless, the precise mechanism behind its ability to enhance tomato resistance to fungi remains unclear. In this study, we found that the exogenous spraying of ZNC could significantly improve the resistance of tomato plants to B. cinerea. The results of both the metabolomic analysis and high-performance liquid chromatography (HPLC) demonstrated that tomato plants responded to ZNC treatment by accumulating high levels of rutin. Additional transcriptome analysis uncovered that rutin enhances tomato resistance possible by initiating the generation of reactive oxygen species (ROS) and phosphorylation of mitogen-activated protein kinases (MPKs) related genes expression during the initial phase of invasion by B. cinerea. In addition, we also found that rutin might activate plant immunity by eliciting ethylene (ET) and jasmonic acid (JA)-mediated pathways. Therefore, plant immune inducer ZNC and rutin has bright application prospects and high utilization value to control gray mold.
Collapse
Affiliation(s)
- Haipeng Zhao
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China
| | - Xiangyu Ding
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China
| | - Xiaomeng Chu
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China
| | - Haimiao Zhang
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China
| | - Xinyu Wang
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China
| | - Xinwen Zhang
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China
| | - Haoqi Liu
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China
| | - Xiaoying Zhang
- Shandong Pengbo Biotechnology Co., Ltd., Taian, 271000, China
| | - Ziyi Yin
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China.
| | - Yang Li
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China.
| | - Xinhua Ding
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China.
| |
Collapse
|
6
|
Jiang L, Wang Q, Zhang S, Liu C, Wang K, Li F, Wang X, Liu W, Ma X, Fan G, Chen T, Jin Y, Sun X. Fabrication of an alginate-based ZhiNengCong gel showed an enhanced antiviral and plant growth promoting functions. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 191:105373. [PMID: 36963942 DOI: 10.1016/j.pestbp.2023.105373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/13/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
Tobacco mosaic disease is a worldwide viral disease that can cause huge economic losses. Plant immune inducers have become the main force in the prevention and treatment of viral disease own to their high efficiency and rapid effect. However, since tobacco mosaic disease can occur at any point in the plant growth cycle, a single application period cannot guarantee the completely management. In this study, an extract from Paecilomyces variotii named ZhiNengCong (ZNC), which can fight against tobacco mosaic disease with 65% control effect, and improve the promotion of tobacco stem girth, was selected from five commercial antiviral medicines, and a sustained release sodium alginate (Alg)-based ZNC (ZNC@Alg) was prepared by physical absorption. ZNC@Alg, who contains only 5 mg/mL ZNC, can release ZNC for 7 consecutive days, and displayed an enhanced effect in inducing the PAL-mediated salicylic acid signaling pathway activation to participate in the inhibition of green fluorescent protein (GFP)-tagged tobacco mosaic virus (TMV-GFP) infection, even after 7 days of the application. Notably, field experiments showed that the control effect of ZNC@Alg was up to 88%, which was significantly better than that of ZNC with the same concentration (10 μg per plant). In addition, ZNC@Alg exhibited a stronger growth-promoting effect than ZNC, which significantly increased the wet weight of tobacco. Taken together, we screened out a plant immune inducer ZNC that can effectively inhibit tobacco virus disease, and created ZNC@Alg with higher control effect and growth promotion effect, laying a foundation for effective field management of tobacco mosaic disease.
Collapse
Affiliation(s)
- Long Jiang
- Chongqing Key Laboratory of Plant Disease Biology, College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Qin Wang
- Chongqing Key Laboratory of Plant Disease Biology, College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Shuai Zhang
- Chongqing Company of China Tobacco Corporation, Chongqing 409100, China
| | - Changyun Liu
- Chongqing Key Laboratory of Plant Disease Biology, College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Ke Wang
- Chongqing Key Laboratory of Plant Disease Biology, College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Fengwei Li
- Chongqing Key Laboratory of Plant Disease Biology, College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Xiaoyan Wang
- Chongqing Key Laboratory of Plant Disease Biology, College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Weina Liu
- Chongqing Key Laboratory of Plant Disease Biology, College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Xiaozhou Ma
- Chongqing Key Laboratory of Plant Disease Biology, College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Guangjin Fan
- Chongqing Key Laboratory of Plant Disease Biology, College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Tiancai Chen
- Chongqing Company of China Tobacco Corporation, Chongqing 409100, China.
| | - Yabo Jin
- China Tobacco Guangxi Industry Corporation Limited. Nanning 530001, China.
| | - Xianchao Sun
- Chongqing Key Laboratory of Plant Disease Biology, College of Plant Protection, Southwest University, Chongqing 400715, China.
| |
Collapse
|
7
|
Manjunatha L, Rajashekara H, Uppala LS, Ambika DS, Patil B, Shankarappa KS, Nath VS, Kavitha TR, Mishra AK. Mechanisms of Microbial Plant Protection and Control of Plant Viruses. PLANTS (BASEL, SWITZERLAND) 2022; 11:3449. [PMID: 36559558 PMCID: PMC9785281 DOI: 10.3390/plants11243449] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/10/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Plant viral diseases are major constraints causing significant yield losses worldwide in agricultural and horticultural crops. The commonly used methods cannot eliminate viral load in infected plants. Many unconventional methods are presently being employed to prevent viral infection; however, every time, these methods are not found promising. As a result, it is critical to identify the most promising and sustainable management strategies for economically important plant viral diseases. The genetic makeup of 90 percent of viral diseases constitutes a single-stranded RNA; the most promising way for management of any RNA viruses is through use ribonucleases. The scope of involving beneficial microbial organisms in the integrated management of viral diseases is of the utmost importance and is highly imperative. This review highlights the importance of prokaryotic plant growth-promoting rhizobacteria/endophytic bacteria, actinomycetes, and fungal organisms, as well as their possible mechanisms for suppressing viral infection in plants via cross-protection, ISR, and the accumulation of defensive enzymes, phenolic compounds, lipopeptides, protease, and RNase activity against plant virus infection.
Collapse
Affiliation(s)
- Lakshmaiah Manjunatha
- Division of Crop Protection, ICAR-Indian Institute of Horticultural Research (IIHR), Bengaluru 560089, Karnataka, India
| | - Hosahatti Rajashekara
- Division of Crop Protection, ICAR-Directorate of Cashew Research (DCR), Dakshina Kannada 574202, Karnataka, India
| | - Leela Saisree Uppala
- Cranberry Station, East Wareham, University of Massachusetts, Amherst, MA 02538, USA
| | - Dasannanamalige Siddesh Ambika
- Department of Plant Pathology, College of Horticulture, University of Horticultural Sciences (Bagalkot), Bengaluru 560065, Karnataka, India
| | - Balanagouda Patil
- Department of Plant Pathology, University of Agricultural and Horticultural Sciences, Shivamogga 577255, Karnataka, India
| | - Kodegandlu Subbanna Shankarappa
- Department of Plant Pathology, College of Horticulture, University of Horticultural Sciences (Bagalkot), Bengaluru 560065, Karnataka, India
| | | | - Tiptur Rooplanaik Kavitha
- Department of Plant Pathology, University of Agricultural Sciences, GKVK, Bengaluru 560065, Karnataka, India
| | - Ajay Kumar Mishra
- Khalifa Centre for Genetic Engineering and Biotechnology, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| |
Collapse
|
8
|
Metabarcoding and Metabolome Analyses Reveal Mechanisms of Leymus chinensis Growth Promotion by Fairy Ring of Leucocalocybe mongolica. J Fungi (Basel) 2022; 8:jof8090944. [PMID: 36135669 PMCID: PMC9505569 DOI: 10.3390/jof8090944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/03/2022] [Accepted: 09/06/2022] [Indexed: 11/17/2022] Open
Abstract
Fairy rings are a unique ecological phenomenon caused by the growth of the fungal mycelium in the soil. Fairy rings formed by Leucocalocybe mongolica (LM) are generally distributed in the Mongolian Plateau, where they promote plant growth without fertilization and alleviate fertilizer use. We previously investigated the soil factors regulating growth promotion in a fairy ring ecosystem; however, the aspects of the plant (Leymus chinensis, LC) that promote growth have not been explored. Therefore, the present study investigated the endophyte diversity and metabolome of LC in an LM fairy ring ecosystem. We analyzed the leaf and root samples of LC from the DARK (FR) and OUT (CK) zones. The fairy rings significantly improved the fungal diversity of roots and leaves and the bacterial diversity of leaves in the FR zone. Ralstonia was the dominant bacteria detected in the LC leaves. In addition, Marasmius, another fairy ring fungal genus, was also detected with a high abundance in the roots of the FR zone. Furthermore, widely targeted metabolome analysis combined with KEGG annotation identified 1011 novel metabolites from the leaves and roots of LC and seven pathways significantly regulated by the fairy ring in the FR zone. The fairy ring ecosystem significantly downregulated the flavonoid metabolism in the leaves and roots of LC. The correlation analysis found Ralstonia is a potential regulatory factor of flavonoid biosynthesis in LC. In addition, salicylic acid and jasmonic acid were found upregulated in the leaves, probably related to Marasmius enrichment. Thus, the study details plant factors associated with enhanced growth in an LM fairy ring ecosystem. These findings lay a theoretical foundation for developing the fairy ring ecosystem in an agricultural system.
Collapse
|
9
|
Wang Y, Liu H, Fu G, Li Y, Ji X, Zhang S, Qiao K. Paecilomyces variotii extract increases lifespan and protects against oxidative stress in Caenorhabditis elegans through SKN-1, but not DAF-16. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
10
|
Cui X, Liu S, Zhang L, Guo X, Li T, Zhang X, Wang Q, Zeng W, Huang J, Duan Q, Cao Y. Endophytic extract Zhinengcong alleviates heat stress-induced reproductive defect in Solanum lycopersicum. FRONTIERS IN PLANT SCIENCE 2022; 13:977881. [PMID: 36092397 PMCID: PMC9454194 DOI: 10.3389/fpls.2022.977881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
High temperature negatively affects reproductive process significantly, leading to tremendous losses in crop quality and yield. Zhinengcong (ZNC), a crude extract from the endophytic fungus Paecilomyces variotii, has been shown to improve plant growth and resistance to biotic and abiotic stresses. We show here that ZNC can also alleviate heat stress-induced reproductive defects in Solanum lycopersicum, such as short-term heat-induced inhibition on pollen viability, germination and tube growth, and long-term heat stress-induced pollen developmental defects. We further demonstrated that ZNC alleviates heat stress by downregulating the expressions of ROS production-related genes, RBOHs, and upregulating antioxidant related genes and the activities of the corresponding enzymes, thus preventing the over accumulation of heat-induced reactive oxygen species (ROS) in anther, pollen grain and pollen tube. Furthermore, spraying application of ZNC onto tomato plants under long-term heat stress promotes fruit and seed bearing in the field. In summary, plant endophytic fungus extract ZNC promotes the reproductive process and yield of tomato plants under heat stress and presents excellent potential in agricultural applications.
Collapse
Affiliation(s)
- Xiaoshuang Cui
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, Shandong, China
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, Shandong, China
| | - Shangjia Liu
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, Shandong, China
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, Shandong, China
| | - Lina Zhang
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, Shandong, China
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, Shandong, China
| | - Xinping Guo
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, Shandong, China
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, Shandong, China
| | - Ting Li
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, Shandong, China
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, Shandong, China
| | - Xiaoyu Zhang
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, Shandong, China
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, Shandong, China
| | - Qingbin Wang
- Shandong Pengbo Biotechnology Co., Ltd., Tai’an, China
| | - Weiqing Zeng
- Trait Discovery, Corteva Agriscience, Johnston, IA, United States
| | - Jiabao Huang
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, Shandong, China
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, Shandong, China
| | - Qiaohong Duan
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, Shandong, China
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, Shandong, China
| | - Yunyun Cao
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, Shandong, China
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, Shandong, China
| |
Collapse
|
11
|
Gong Q, Wang Y, Jin Z, Hong Y, Liu Y. Transcriptional and post-transcriptional regulation of RNAi-related gene expression during plant-virus interactions. STRESS BIOLOGY 2022; 2:33. [PMID: 37676459 PMCID: PMC10441928 DOI: 10.1007/s44154-022-00057-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 08/14/2022] [Indexed: 09/08/2023]
Abstract
As sessile organisms, plants encounter diverse invasions from pathogens including viruses. To survive and thrive, plants have evolved multilayered defense mechanisms to combat virus infection. RNAi, also known as RNA silencing, is an across-kingdom innate immunity and gene regulatory machinery. Molecular framework and crucial roles of RNAi in antiviral defense have been well-characterized. However, it is largely unknown that how RNAi is transcriptionally regulated to initiate, maintain and enhance cellular silencing under normal or stress conditions. Recently, insights into the transcriptional and post-transcriptional regulation of RNAi-related genes in different physiological processes have been emerging. In this review, we integrate these new findings to provide updated views on how plants modulate RNAi machinery at the (post-) transcriptional level to respond to virus infection.
Collapse
Affiliation(s)
- Qian Gong
- MOE Key Laboratory of Bioinformatics and Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, China
- Tsinghua-Peking Center for Life Sciences, Beijing, 100084, China
| | - Yunjing Wang
- MOE Key Laboratory of Bioinformatics and Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, China
- Tsinghua-Peking Center for Life Sciences, Beijing, 100084, China
| | - Zhenhui Jin
- Research Centre for Plant RNA Signaling, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, China
- School of Science and the Environment, University of Worcester, Worcester, WR2 6AJ, UK
| | - Yiguo Hong
- Research Centre for Plant RNA Signaling, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121, China
- School of Science and the Environment, University of Worcester, Worcester, WR2 6AJ, UK
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
| | - Yule Liu
- MOE Key Laboratory of Bioinformatics and Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, China.
- Tsinghua-Peking Center for Life Sciences, Beijing, 100084, China.
| |
Collapse
|
12
|
Takagi K, Tasaki K, Komori H, Katou S. Hypersensitivity-Related Genes HSR201 and HSR203J Are Regulated by Calmodulin-Binding Protein 60-Type Transcription Factors and Required for Pathogen Signal-Induced Salicylic Acid Synthesis. PLANT & CELL PHYSIOLOGY 2022; 63:1008-1022. [PMID: 35671166 DOI: 10.1093/pcp/pcac074] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/12/2022] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
Salicylic acid (SA) plays a key role in plant resistance to pathogens. In Arabidopsis, the isochorismate synthase pathway mainly contributes to pathogen-induced SA synthesis, and the expression of SA synthesis genes is activated by two calmodulin (CaM)-binding protein 60 (CBP60)-type transcription factors, CBP60g and SARD1. In tobacco, the mechanisms underlying SA synthesis remain largely unknown. SA production is induced by wounding in tobacco plants in which the expression of two stress-related mitogen-activated protein kinases is suppressed. Using this phenomenon, we identified genes whose expression is associated with SA synthesis. One of the genes, NtCBP60g, showed 23% amino acid sequence identity with CBP60g. Transient overexpression of NtCBP60g as well as NtSARD1, a tobacco homolog of SARD1, induced SA accumulation in Nicotiana benthamiana leaves. NtCBP60g and NtSARD1 bound CaM, and CaM enhanced SA accumulation induced by NtCBP60g and NtSARD1. Conversely, mutations in NtCBP60g and NtSARD1 that abolished CaM binding reduced their ability to induce SA. Expression profiling and promoter analysis identified two hypersensitivity-related genes, HSR201 and HSR203J as the targets of NtCBP60g and NtSARD1. Virus-induced gene silencing of both NtCBP60g and NtSARD1 homologs compromised SA accumulation and the expression of HSR201 and HSR203J homologs, which were induced by a pathogen-derived elicitor in N. benthamiana leaves. Moreover, elicitor-induced SA accumulation was compromised by silencing of the HSR201 homolog and the HSR203J homolog. These results suggested that HSR201 and HSR203J are regulated by NtCBP60g and NtSARD1 and are required for elicitor-induced SA synthesis.
Collapse
Affiliation(s)
- Kumiko Takagi
- Graduate School of Science and Technology, Shinshu University, Nagano, 399-4598 Japan
| | - Kosuke Tasaki
- Graduate School of Science and Technology, Shinshu University, Nagano, 399-4598 Japan
| | - Hirotomo Komori
- Graduate School of Science and Technology, Shinshu University, Nagano, 399-4598 Japan
| | - Shinpei Katou
- Graduate School of Science and Technology, Shinshu University, Nagano, 399-4598 Japan
| |
Collapse
|
13
|
Ma G, Chen Q, Shi R, Kong B, Chen D, Zhang Z, Li X, Qu Z, Li M, Zhang M, Liu Z. Effect of Coated Diammonium Phosphate Combined with Paecilomyces variotii Extracts on Soil Available Nutrients, Photosynthesis-Related Enzyme Activities, Endogenous Hormones, and Maize Yield. ACS OMEGA 2022; 7:23566-23575. [PMID: 35847329 PMCID: PMC9281325 DOI: 10.1021/acsomega.2c02102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Coated diammonium phosphate (CDAP) is intended to release nutrients steadily in response to the demand of crop growth. A novel biostimulant extracted from Paecilomyces variotii has been shown to regulate gene expression in nutrient transport, enhance nitrogen (N) and phosphorus (P) uptake, and improve nutrient use efficiency. The application of CDAP combined with the Paecilomyces variotii extracts (ZNC) in maize is an efficient approach for reducing waste of resources, improving nutrient supply, and maintaining production stability. The effects of CDAP combined with ZNC on photosynthesis, enzyme activities, endogenous hormone content, maize yield, and P use efficiency (PUE) were investigated in this study. In a pot experiment, CDAP and diammonium phosphate (DAP) were tested together with P levels (1.80, 1.44 g pot-1, P2O5) and two ZNC application rates (0, 4.4 μg pot-1), which included the control treatment that had no P fertilizer added. Results showed that the key influencing elements of maize growth and yield were the soil available-P content, endogenous hormone content, and plant photosynthesis in this study. The combination of DAP and ZNC increased the soil available-P content and the auxin content in leaves at the key stage and hence increased the yield and PUE of maize, compared with DAP. The net photosynthetic rate of CDAP combined with ZNC was higher by 23.1% than that of CDAP alone, as well as by 32.0% than that of DAP combined with ZNC. Moreover, the combination of CDAP and ZNC increased the yield and PUE by 8.2% and 15.6 percentage points compared with DAP combined with ZNC while increasing the yield and PUE compared with CDAP. In conclusion, combining CDAP with ZNC as an environmentally friendly fertilizer could improve photosynthesis-related enzyme activity and enhance the net photosynthetic rate, resulting in an increase in maize yield and PUE significantly.
Collapse
Affiliation(s)
- Guohua Ma
- National
Engineering Research Center for Efficient Utilization of Soil and
Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, Shandong, China
| | - Qi Chen
- National
Engineering Research Center for Efficient Utilization of Soil and
Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, Shandong, China
| | - Ruolin Shi
- National
Engineering Research Center for Efficient Utilization of Soil and
Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, Shandong, China
| | - Bo Kong
- Shandong
Pengbo Biotechnology Co., Ltd., Taian 271018, Shandong, China
| | - Dayin Chen
- Shandong
Pengbo Biotechnology Co., Ltd., Taian 271018, Shandong, China
| | - Zixin Zhang
- National
Engineering Research Center for Efficient Utilization of Soil and
Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, Shandong, China
| | - Xinzhu Li
- Kingenta
Ecological Engineering Group Co., Ltd., Linshu 276700, Shandong, China
| | - Zhaoming Qu
- National
Engineering Research Center for Efficient Utilization of Soil and
Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, Shandong, China
| | - Mingyang Li
- National
Engineering Research Center for Efficient Utilization of Soil and
Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, Shandong, China
| | - Min Zhang
- National
Engineering Research Center for Efficient Utilization of Soil and
Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, Shandong, China
| | - Zhiguang Liu
- National
Engineering Research Center for Efficient Utilization of Soil and
Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, Shandong, China
| |
Collapse
|
14
|
Xia Y, Liu J, Chen C, Mo X, Tan Q, He Y, Wang Z, Yin J, Zhou G. The Multifunctions and Future Prospects of Endophytes and Their Metabolites in Plant Disease Management. Microorganisms 2022; 10:microorganisms10051072. [PMID: 35630514 PMCID: PMC9146654 DOI: 10.3390/microorganisms10051072] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/19/2022] [Accepted: 05/21/2022] [Indexed: 01/27/2023] Open
Abstract
Endophytes represent a ubiquitous and magical world in plants. Almost all plant species studied by different researchers have been found to harbor one or more endophytes, which protect host plants from pathogen invasion and from adverse environmental conditions. They produce various metabolites that can directly inhibit the growth of pathogens and even promote the growth and development of the host plants. In this review, we focus on the biological control of plant diseases, aiming to elucidate the contribution and key roles of endophytes and their metabolites in this field with the latest research information. Metabolites synthesized by endophytes are part of plant disease management, and the application of endophyte metabolites to induce plant resistance is very promising. Furthermore, multi-omics should be more fully utilized in plant–microbe research, especially in mining novel bioactive metabolites. We believe that the utilization of endophytes and their metabolites for plant disease management is a meaningful and promising research direction that can lead to new breakthroughs in the development of more effective and ecosystem-friendly insecticides and fungicides in modern agriculture.
Collapse
Affiliation(s)
- Yandong Xia
- Key Laboratory of National Forestry and Grassland Administration on Control of Artificial Forest Diseases and Pests in South China, Hunan Provincial Key Laboratory for Control of Forest Diseases and Pests, Key Laboratory for Non-Wood Forest Cultivation and Conservation of Ministry of Education, College of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China; (Y.X.); (J.L.); (X.M.); (Q.T.); (Y.H.); (Z.W.)
| | - Junang Liu
- Key Laboratory of National Forestry and Grassland Administration on Control of Artificial Forest Diseases and Pests in South China, Hunan Provincial Key Laboratory for Control of Forest Diseases and Pests, Key Laboratory for Non-Wood Forest Cultivation and Conservation of Ministry of Education, College of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China; (Y.X.); (J.L.); (X.M.); (Q.T.); (Y.H.); (Z.W.)
| | - Cang Chen
- College of Life Science, Hunan Normal University, Changsha 410081, China;
| | - Xiuli Mo
- Key Laboratory of National Forestry and Grassland Administration on Control of Artificial Forest Diseases and Pests in South China, Hunan Provincial Key Laboratory for Control of Forest Diseases and Pests, Key Laboratory for Non-Wood Forest Cultivation and Conservation of Ministry of Education, College of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China; (Y.X.); (J.L.); (X.M.); (Q.T.); (Y.H.); (Z.W.)
| | - Qian Tan
- Key Laboratory of National Forestry and Grassland Administration on Control of Artificial Forest Diseases and Pests in South China, Hunan Provincial Key Laboratory for Control of Forest Diseases and Pests, Key Laboratory for Non-Wood Forest Cultivation and Conservation of Ministry of Education, College of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China; (Y.X.); (J.L.); (X.M.); (Q.T.); (Y.H.); (Z.W.)
| | - Yuan He
- Key Laboratory of National Forestry and Grassland Administration on Control of Artificial Forest Diseases and Pests in South China, Hunan Provincial Key Laboratory for Control of Forest Diseases and Pests, Key Laboratory for Non-Wood Forest Cultivation and Conservation of Ministry of Education, College of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China; (Y.X.); (J.L.); (X.M.); (Q.T.); (Y.H.); (Z.W.)
| | - Zhikai Wang
- Key Laboratory of National Forestry and Grassland Administration on Control of Artificial Forest Diseases and Pests in South China, Hunan Provincial Key Laboratory for Control of Forest Diseases and Pests, Key Laboratory for Non-Wood Forest Cultivation and Conservation of Ministry of Education, College of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China; (Y.X.); (J.L.); (X.M.); (Q.T.); (Y.H.); (Z.W.)
| | - Jia Yin
- College of Life Science, Hunan Normal University, Changsha 410081, China;
- Correspondence: (J.Y.); (G.Z.)
| | - Guoying Zhou
- Key Laboratory of National Forestry and Grassland Administration on Control of Artificial Forest Diseases and Pests in South China, Hunan Provincial Key Laboratory for Control of Forest Diseases and Pests, Key Laboratory for Non-Wood Forest Cultivation and Conservation of Ministry of Education, College of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China; (Y.X.); (J.L.); (X.M.); (Q.T.); (Y.H.); (Z.W.)
- Correspondence: (J.Y.); (G.Z.)
| |
Collapse
|
15
|
Wang B, Song CR, Zhang QY, Wei PW, Wang X, Long YH, Yang YX, Liao SG, Liu HM, Xu GB. The Fusaric Acid Derivative qy17 Inhibits Staphylococcus haemolyticus by Disrupting Biofilm Formation and the Stress Response via Altered Gene Expression. Front Microbiol 2022; 13:822148. [PMID: 35369527 PMCID: PMC8964301 DOI: 10.3389/fmicb.2022.822148] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 02/02/2022] [Indexed: 12/05/2022] Open
Abstract
Staphylococcus haemolyticus (S. haemolyticus) is the second most commonly isolated coagulase-negative staphylococcus (CoNS) in patients with hospital-acquired infections. It can produce phenol-soluble modulin (PSM) toxins and form biofilms. Compared with the wealth of information on Staphylococcus aureus and Staphylococcus epidermidis, very little is known about S. haemolyticus. There is an urgent need to find an effective preparation to combat the harm caused by S. haemolyticus infection. Chinese herbs have been utilized to cure inflammation and infectious diseases and have a long history of anticancer function in China. Here, we modified fusaric acid characterized from the metabolites of Gibberella intermedia, an endophyte previously isolated from Polygonum capitatum. This study shows that fusaric acid analogs (qy17 and qy20) have strong antibacterial activity against S. haemolyticus. In addition, crystal violet analyses and scanning electron microscopy observations demonstrated that qy17 inhibited biofilm formation and disrupted mature biofilms of S. haemolyticus in a dose-dependent manner. Additionally, it reduced the number of live bacteria inside the biofilm. Furthermore, the antibiofilm function of qy17 was achieved by downregulating transcription factors (sigB), transpeptidase genes (srtA), and bacterial surface proteins (ebp, fbp) and upregulating biofilm-related genes and the density-sensing system (agrB). To further elucidate the bacteriostatic mechanism, transcriptomic analysis was carried out. The following antibacterial mechanisms were uncovered: (i) the inhibition of heat shock (clpB, groES, groL, grpE, dnaK, dnaJ)-, oxidative stress (aphC)- and biotin response (bioB)-related gene expression, which resulted in S. haemolyticus being unable to compensate for various stress conditions, thereby affecting bacterial growth; and (ii) a reduction in the expression of PSM-beta (PSMβ1, PSMβ2, PSMβ3) toxin- and Clp protease (clpP, clpX)-related genes. These findings could have major implications for the treatment of diseases caused by S. haemolyticus infections. Our research reveals for the first time that fusaric acid derivatives inhibit the expression of biofilm formation-related effector and virulence genes of S. haemolyticus. These findings provide new potential drug candidates for hospital-acquired infections caused by S. haemolyticus.
Collapse
Affiliation(s)
- Bing Wang
- Engineering Research Center of Medical Biotechnology & School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
- Key Laboratory of Infectious Immune and Antibody Engineering in Guizhou Province, Guiyang, China
- School of Biology and Engineering, Guizhou Medical University, Guiyang, China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, China
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, China Ministry of Education (Guizhou Medical University), Guiyang, China
| | - Chao-Rong Song
- Engineering Research Center of Medical Biotechnology & School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
- School of Biology and Engineering, Guizhou Medical University, Guiyang, China
| | - Qing-Yan Zhang
- School of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Peng-Wei Wei
- Engineering Research Center of Medical Biotechnology & School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
- School of Biology and Engineering, Guizhou Medical University, Guiyang, China
| | - Xu Wang
- Engineering Research Center of Medical Biotechnology & School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
- School of Biology and Engineering, Guizhou Medical University, Guiyang, China
| | - Yao-Hang Long
- Engineering Research Center of Medical Biotechnology & School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
- Key Laboratory of Infectious Immune and Antibody Engineering in Guizhou Province, Guiyang, China
- School of Biology and Engineering, Guizhou Medical University, Guiyang, China
| | - Yong-Xin Yang
- Engineering Research Center of Medical Biotechnology & School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
- School of Biology and Engineering, Guizhou Medical University, Guiyang, China
| | - Shang-Gao Liao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, China
- School of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Hong-Mei Liu
- Engineering Research Center of Medical Biotechnology & School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
- Key Laboratory of Infectious Immune and Antibody Engineering in Guizhou Province, Guiyang, China
- School of Biology and Engineering, Guizhou Medical University, Guiyang, China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, China
| | - Guo-Bo Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, China
- School of Pharmacy, Guizhou Medical University, Guiyang, China
| |
Collapse
|
16
|
Zhang H, Wei TP, Li LZ, Luo MY, Jia WY, Zeng Y, Jiang YL, Tao GC. Multigene Phylogeny, Diversity and Antimicrobial Potential of Endophytic Sordariomycetes From Rosa roxburghii. Front Microbiol 2021; 12:755919. [PMID: 34912312 PMCID: PMC8667620 DOI: 10.3389/fmicb.2021.755919] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 11/08/2021] [Indexed: 11/13/2022] Open
Abstract
Rosa roxburghii Tratt. is widely applied in food, cosmetics, and traditional medicine, and has been demonstrated to possess diverse bioactivities. Plant endophytic fungi are important microbial resources with great potential for application in many fields. They not only establish mutualistic symbiosis with host plants but also produce a variety of bioactive compounds. Therefore, in the present study, endophytic fungi were isolated from R. roxburghii, the diversity and antimicrobial activities were evaluated. As a result, 242 strains of endophytic Sordariomycetes were successfully isolated. Multigene phylogenetic analyses showed that these isolates included eight orders, 19 families, 33 genera. The dominant genera were Diaporthe (31.4%), Fusarium (14.4%), Chaetomium (7.9%), Dactylonectria (7.0%), Graphium (4.5%), Colletotrichum (4.1%), and Clonostachys (4.1%). For different tissues of R. roxburghii, alpha diversity analysis revealed that the diversity of fungal communities decreased in the order of root, fruit, stem, flower, leaf, and seed, and Clonostachys and Dactylonectria exhibited obvious tissue specificity. Meanwhile, functional annotation of 33 genera indicated that some fungi have multitrophic lifestyles combining endophytic, pathogenic, and saprophytic behavior. Additionally, antimicrobial activities of endophytic Sordariomycetes against Lasiodiplodia theobromae, Botryosphaeria dothidea, Colletotrichum capsici, Pyricularia oryzae, Rhizoctonia solani, Fusarium oxysporum, Pseudomonas syringae, Pantoea agglomerans, Staphylococcus aureus, Bacillus subtilis, Escherichia coli, and Pseudomonas aeruginosa were screened. Dual culture test assays showed that there were 40 different endophytic species with strong inhibition of at least one or moderate inhibition of two or more against the 12 tested strains. The results from the filter paper diffusion method suggested that extracellular metabolites may be more advantageous than intracellular metabolites in the development of antimicrobial agents. Eleven isolates with good activities were screened. In particular, Hypomontagnella monticulosa HGUP194009 and Nigrospora sphaerica HGUP191020 have shown promise in both broad-spectrum and intensity. Finally, some fungi that commonly cause disease have been observed to have beneficial biological activities as endophytic fungi. In conclusion, this study showed the species composition, alpha diversity, and lifestyle diversity of endophytic Sordariomycetes from R. roxburghii and demonstrated these isolates are potential sources for exploring antimicrobial agents.
Collapse
Affiliation(s)
- Hong Zhang
- Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang, China.,Guizhou Academy of Testing and Analysis, Guiyang, China
| | - Tian-Peng Wei
- Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang, China
| | - Lin-Zhu Li
- Guizhou Academy of Testing and Analysis, Guiyang, China
| | - Ming-Yan Luo
- Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang, China
| | - Wei-Yu Jia
- Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang, China
| | - Yan Zeng
- Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang, China
| | - Yu-Lan Jiang
- Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang, China
| | - Guang-Can Tao
- Guizhou Academy of Testing and Analysis, Guiyang, China.,Food Safety and Nutrition (Guizhou) Information Technology Co., Ltd., Guiyang National High-Tech Industrial Development Zone, Guiyang, China
| |
Collapse
|
17
|
Du JX, Li Y, Ur-Rehman S, Mukhtar I, Yin Z, Dong H, Wang H, Zhang X, Gao Z, Zhao X, Xin X, Ding X. Synergistically promoting plant health by harnessing synthetic microbial communities and prebiotics. iScience 2021; 24:102918. [PMID: 34430808 PMCID: PMC8365361 DOI: 10.1016/j.isci.2021.102918] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Soil-borne diseases cause serious economic losses in agriculture. Managing diseases with microbial preparations is an excellent approach to soil-borne disease prevention. However, microbial preparations often exhibit unstable effects, limiting their large-scale application. This review introduces and summarizes disease-suppressive soils, the relationship between carbon sources and the microbial community, and the application of human microbial preparation concepts to plant microbial preparations. We also propose an innovative synthetic microbial community assembly strategy with synergistic prebiotics to promote healthy plant growth and resistance to disease. In this review, a new approach is proposed to improve traditional microbial preparations; provide a better understanding of the relationships among carbon sources, beneficial microorganisms, and plants; and lay a theoretical foundation for developing new microbial preparations.
Collapse
Affiliation(s)
- Jianfeng X. Du
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, Shandong 271018, P. R. China
| | - Yang Li
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, Shandong 271018, P. R. China
| | - Saif- Ur-Rehman
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, Shandong 271018, P. R. China
| | - Irum Mukhtar
- Institute of Oceanography, Minjiang University, Fuzhou 350108, China
| | - Ziyi Yin
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, Shandong 271018, P. R. China
| | - Hansong Dong
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, Shandong 271018, P. R. China
| | - Hongfeng Wang
- Shandong Pengbo Biotechnology Co., LTD, Taian 271018, China
| | - Xiaoying Zhang
- Shandong Pengbo Biotechnology Co., LTD, Taian 271018, China
| | - Zheng Gao
- College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, P.R. China
| | - Xiangyu Zhao
- College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, P.R. China
| | - Xiufang Xin
- Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Science and Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences (CAS) and CAS John Innes Centre of Excellence for Plant and Microbial Sciences, Shanghai, China
| | - Xinhua Ding
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, Shandong 271018, P. R. China
| |
Collapse
|
18
|
Wang Q, Peng C, Shi L, Liu Z, Zhou D, Meng H, Zhao H, Li F, Zhang M. A Technical System for the Large-Scale Application of Metabolites From Paecilomyces variotii SJ1 in Agriculture. Front Bioeng Biotechnol 2021; 9:671879. [PMID: 34055763 PMCID: PMC8149806 DOI: 10.3389/fbioe.2021.671879] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 04/08/2021] [Indexed: 01/31/2023] Open
Abstract
Compared with endophytes, metabolites from endophytes (MEs) have great potential in agriculture. However, a technique for industrializing the production of MEs is still scarce. Moreover, the establishment of effective methods for evaluating the quality of MEs is hampered by the fact that some compounds with beneficial effects on crops have not been clearly identified. Herein, a system was established for the production, quality control and application of MEs by using the extract from Paecilomyces variotii SJ1 (ZNC). First, the extraction conditions of ZNC were optimized through response surface methodology, after which each batch (500 L) met the consumption requirements of crops in 7,467 hectares. Then, chromatographic fingerprinting and enzyme-linked immunosorbent assay were applied to evaluate the similarity and specificity of unknown effective components in ZNC, ensuring a similarity of more than 90% and a quantitative accuracy of greater than 99.9% for the products from different batches. Finally, the bioactivity of industrially produced ZNC was evaluated in the field, and it significantly increased the potato yields by 4.4–10.8%. Overall, we have established a practical technical system for the large-scale application of ZNC in agriculture.
Collapse
Affiliation(s)
- Qingbin Wang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, National Engineering and Technology Research Center for Slow and Controlled Release Fertilizers, Shandong Agricultural University, Tai'an, China.,Shandong Pengbo Biotechnology Co., Ltd., Tai'an, China
| | - Chune Peng
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Liran Shi
- Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, National Glycoengineering Research Center, Shandong University, Qingdao, China
| | - Zhiguang Liu
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, National Engineering and Technology Research Center for Slow and Controlled Release Fertilizers, Shandong Agricultural University, Tai'an, China
| | - Dafa Zhou
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Hui Meng
- Shandong Pengbo Biotechnology Co., Ltd., Tai'an, China
| | - Hongling Zhao
- Shandong Pengbo Biotechnology Co., Ltd., Tai'an, China
| | - Fuchuan Li
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Min Zhang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, National Engineering and Technology Research Center for Slow and Controlled Release Fertilizers, Shandong Agricultural University, Tai'an, China
| |
Collapse
|
19
|
Fontana DC, de Paula S, Torres AG, de Souza VHM, Pascholati SF, Schmidt D, Dourado Neto D. Endophytic Fungi: Biological Control and Induced Resistance to Phytopathogens and Abiotic Stresses. Pathogens 2021; 10:570. [PMID: 34066672 PMCID: PMC8151296 DOI: 10.3390/pathogens10050570] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/09/2021] [Accepted: 03/09/2021] [Indexed: 12/27/2022] Open
Abstract
Plant diseases cause losses of approximately 16% globally. Thus, management measures must be implemented to mitigate losses and guarantee food production. In addition to traditional management measures, induced resistance and biological control have gained ground in agriculture due to their enormous potential. Endophytic fungi internally colonize plant tissues and have the potential to act as control agents, such as biological agents or elicitors in the process of induced resistance and in attenuating abiotic stresses. In this review, we list the mode of action of this group of microorganisms which can act in controlling plant diseases and describe several examples in which endophytes were able to reduce the damage caused by pathogens and adverse conditions. This is due to their arsenal of molecules generated during the interaction by which they form a kind of biological shield in the plant. Furthermore, considering that endophytic fungi can be an important tool in managing for biotic and abiotic stresses due to the large amount of biologically active substances produced, bioprospecting this class of microorganisms is tending to increase and generate valuable products for agriculture.
Collapse
Affiliation(s)
- Daniele Cristina Fontana
- Department of Plant Production, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba 13418900, Brazil; (D.C.F.); (D.D.N.)
| | - Samuel de Paula
- Plant Pathology Department, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba 13418900, Brazil; (A.G.T.); (V.H.M.d.S.); (S.F.P.)
| | - Abel Galon Torres
- Plant Pathology Department, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba 13418900, Brazil; (A.G.T.); (V.H.M.d.S.); (S.F.P.)
| | - Victor Hugo Moura de Souza
- Plant Pathology Department, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba 13418900, Brazil; (A.G.T.); (V.H.M.d.S.); (S.F.P.)
| | - Sérgio Florentino Pascholati
- Plant Pathology Department, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba 13418900, Brazil; (A.G.T.); (V.H.M.d.S.); (S.F.P.)
| | - Denise Schmidt
- Department of Agronomy and Environmental Science, Frederico Westphalen Campus, Federal University of Santa Maria, Frederico Westphalen 98400000, Brazil;
| | - Durval Dourado Neto
- Department of Plant Production, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba 13418900, Brazil; (D.C.F.); (D.D.N.)
| |
Collapse
|
20
|
Cao J, Liu B, Xu X, Zhang X, Zhu C, Li Y, Ding X. Plant Endophytic Fungus Extract ZNC Improved Potato Immunity, Yield, and Quality. FRONTIERS IN PLANT SCIENCE 2021; 12:707256. [PMID: 34621283 PMCID: PMC8491004 DOI: 10.3389/fpls.2021.707256] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 08/19/2021] [Indexed: 05/17/2023]
Abstract
Endophytic fungi play an important role in plant survival and reproduction, but the role of their metabolites in plant growth and immunity, as well as in crop quality formation, is poorly understood. Zhinengcong (ZNC) is a crude ethanol extract from the endophytic fungus Paecilomyces variotii, and previous studies have shown that it can improve the growth and immunity in Arabidopsis thaliana. The aim of the study was to reveal the trade-off balance between plant growth and immunity by evaluating the mechanisms of ZNC on potato growth, yield, and priming immunity against the oomycete Phytophthora infestans indoors and in the field. ZNC maintained a good balance between plant growth and resistance against P. infestans with high activity. It induced the reactive oxygen species (ROS) production, promoted plant growth, yield and quality parameters, enhanced the expression of indoleacetic acid (IAA) related genes, and increased the absorption of nitrogen from the soil. Moreover, the plant endophytic fungus extract ZNC stimulated the pathogen-associated molecular pattern (PAMP) triggered immunity (PTI) pathway and contributed to the ZNC-mediated defense response. Two years of field trials have shown that irrigation with ZNC at one of two optimal concentrations of 1 or 10ng/ml could significantly increase the output by 18.83% or more. The quality of potato tubers was also greatly improved, in which the contents of vitamin C, protein, and starch were significantly increased, especially the sugar content was increased by 125%. Spray application of ZNC onto potato plants significantly reduced the occurrence of potato blight disease with 66.49% of control efficacy at 200ng/ml and increased the potato yield by 66.68% or more in the field. In summary, plant endophytic fungus extract ZNC promoted potato immunity, yield, and quality and presented excellent potential in agricultural applications.
Collapse
Affiliation(s)
- Juan Cao
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai’an, China
- Shandong Pengbo Biotechnology Co., Ltd., Tai’an, China
- Yanzhou Agricultural Technology Extension Center, Yanzhou, China
| | - Baoyou Liu
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai’an, China
- Yantai Academy of Agricultural Sciences, Yantai, China
- College of Life Sciences, Yantai University, Yantai, China
| | - Xinning Xu
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai’an, China
| | | | - Changxiang Zhu
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai’an, China
| | - Yang Li
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai’an, China
| | - Xinhua Ding
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai’an, China
- *Correspondence: Xinhua Ding,
| |
Collapse
|
21
|
Du J, Li Y, Yin Z, Wang H, Zhang X, Ding X. High-Throughput Customization of Plant Microbiomes for Sustainable Agriculture. FRONTIERS IN PLANT SCIENCE 2020; 11:569742. [PMID: 33013992 PMCID: PMC7505944 DOI: 10.3389/fpls.2020.569742] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 08/18/2020] [Indexed: 05/02/2023]
Abstract
Soil microorganisms can form a stable dynamic system with plant root systems. The composition of the soil microorganism community is related to the growth and stress resistance of plants; in turn, soil microorganisms are also regulated by plant genotypes and root exudates. Therefore, research on how to identify microorganisms that are beneficial or harmful to plants, study the interaction between microorganisms and plants, and form stable microbial communities for better plant growth plays an important role in sustainable agriculture. It is of great significance to identify and analyze rhizosphere microorganisms and plant endophytes through high-throughput methods, especially to analyze which microorganisms are beneficial to plants, which are harmful to plants, and which are opportunistic pathogens. This review provides a theoretical basis and outlook for the utilization of beneficial microbes in sustainable agriculture.
Collapse
Affiliation(s)
- Jianfeng Du
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai’an, China
| | - Yang Li
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai’an, China
| | - Ziyi Yin
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai’an, China
| | - Hongfeng Wang
- Shandong Pengbo Biotechnology Co., Ltd., Tai’an, China
| | | | - Xinhua Ding
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai’an, China
- *Correspondence: Xinhua Ding,
| |
Collapse
|