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Yue F, Shi M, Li C, Meng Y, Zhang S, Wang L, Song Y, Li J, Zhang H. S-scheme heterojunction Cu-porphyrin/TiO 2 nanosheets with highly efficient photocatalytic reduction of CO 2 in ambient air. J Colloid Interface Sci 2024; 665:1079-1090. [PMID: 38581719 DOI: 10.1016/j.jcis.2024.04.007] [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: 01/04/2024] [Revised: 03/31/2024] [Accepted: 04/01/2024] [Indexed: 04/08/2024]
Abstract
Directly capturing CO2 in ambient air and converting it into value-added fuels using photocatalysis is a potentially valuable technology. In this study, Cu-porphyrin (tetrakis-carboxyphenyl porphyrin copper, CuTCPP) was innovatively anchored on the surface of TiO2 (titanium dioxide) nanosheets to form an S-scheme heterojunction. Based on this, a photocatalytic reaction system for stably converting CO2 in ambient air into value-added fuels at the gas-solid interface was constructed without addition of sacrificial agents and alkaline liquids. Under the illumination of visible light and sunlight, the evolution rate of CO is 56 μmol·g-1·h-1 and 73 μmol·g-1·h-1, respectively, with a potential CO2 conversion rate of 35.8 % and 50.4 %. The enhanced of photocatalytic performance is attributed to the introduction of CuTCPP, which provides additional active sites, significantly improves capture capacity of CO2 and the utilization of electrons. Additionally, the formation of S-scheme heterojunction expands the redox range and improves the separation efficiency of photo-generated charges.
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Affiliation(s)
- Feng Yue
- Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Mengke Shi
- Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Cong Li
- Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 450001, China; Department of Chemistry, University of Camerino, 62032 Camerino, Macerata, Italy
| | - Yang Meng
- Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Shuo Zhang
- Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Lan Wang
- Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Yali Song
- Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Jun Li
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, China.
| | - Hongzhong Zhang
- Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 450001, China.
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2
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Gao L, Kantar MB, Moxley D, Ortiz-Barrientos D, Rieseberg LH. Crop adaptation to climate change: An evolutionary perspective. MOLECULAR PLANT 2023; 16:1518-1546. [PMID: 37515323 DOI: 10.1016/j.molp.2023.07.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/20/2023] [Accepted: 07/26/2023] [Indexed: 07/30/2023]
Abstract
The disciplines of evolutionary biology and plant and animal breeding have been intertwined throughout their development, with responses to artificial selection yielding insights into the action of natural selection and evolutionary biology providing statistical and conceptual guidance for modern breeding. Here we offer an evolutionary perspective on a grand challenge of the 21st century: feeding humanity in the face of climate change. We first highlight promising strategies currently under way to adapt crops to current and future climate change. These include methods to match crop varieties with current and predicted environments and to optimize breeding goals, management practices, and crop microbiomes to enhance yield and sustainable production. We also describe the promise of crop wild relatives and recent technological innovations such as speed breeding, genomic selection, and genome editing for improving environmental resilience of existing crop varieties or for developing new crops. Next, we discuss how methods and theory from evolutionary biology can enhance these existing strategies and suggest novel approaches. We focus initially on methods for reconstructing the evolutionary history of crops and their pests and symbionts, because such historical information provides an overall framework for crop-improvement efforts. We then describe how evolutionary approaches can be used to detect and mitigate the accumulation of deleterious mutations in crop genomes, identify alleles and mutations that underlie adaptation (and maladaptation) to agricultural environments, mitigate evolutionary trade-offs, and improve critical proteins. Continuing feedback between the evolution and crop biology communities will ensure optimal design of strategies for adapting crops to climate change.
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Affiliation(s)
- Lexuan Gao
- CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Michael B Kantar
- Department of Tropical Plant & Soil Sciences, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Dylan Moxley
- Department of Botany and Biodiversity Research Centre, University of British Columbia, Vancouver, BC, Canada
| | - Daniel Ortiz-Barrientos
- School of Biological Sciences and Australian Research Council Centre of Excellence for Plant Success in Nature and Agriculture, The University of Queensland, Brisbane, QLD, Australia
| | - Loren H Rieseberg
- Department of Botany and Biodiversity Research Centre, University of British Columbia, Vancouver, BC, Canada.
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3
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Agathokleous E, Frei M, Knopf OM, Muller O, Xu Y, Nguyen TH, Gaiser T, Liu X, Liu B, Saitanis CJ, Shang B, Alam MS, Feng Y, Ewert F, Feng Z. Adapting crop production to climate change and air pollution at different scales. NATURE FOOD 2023; 4:854-865. [PMID: 37845546 DOI: 10.1038/s43016-023-00858-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 09/12/2023] [Indexed: 10/18/2023]
Abstract
Air pollution and climate change are tightly interconnected and jointly affect field crop production and agroecosystem health. Although our understanding of the individual and combined impacts of air pollution and climate change factors is improving, the adaptation of crop production to concurrent air pollution and climate change remains challenging to resolve. Here we evaluate recent advances in the adaptation of crop production to climate change and air pollution at the plant, field and ecosystem scales. The main approaches at the plant level include the integration of genetic variation, molecular breeding and phenotyping. Field-level techniques include optimizing cultivation practices, promoting mixed cropping and diversification, and applying technologies such as antiozonants, nanotechnology and robot-assisted farming. Plant- and field-level techniques would be further facilitated by enhancing soil resilience, incorporating precision agriculture and modifying the hydrology and microclimate of agricultural landscapes at the ecosystem level. Strategies and opportunities for crop production under climate change and air pollution are discussed.
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Affiliation(s)
- Evgenios Agathokleous
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science & Technology, Nanjing, People's Republic of China
- Key Laboratory of Ecosystem Carbon Source and Sink, China Meteorological Administration (ECSS-CMA), School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, People's Republic of China
| | - Michael Frei
- Department of Agronomy and Crop Physiology, Institute for Agronomy and Plant Breeding, Justus-Liebig University Giessen, Giessen, Germany
| | - Oliver M Knopf
- Institute of Bio- and Geoscience 2: plant sciences (IBG-2), Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Onno Muller
- Institute of Bio- and Geoscience 2: plant sciences (IBG-2), Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Yansen Xu
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science & Technology, Nanjing, People's Republic of China
- Key Laboratory of Ecosystem Carbon Source and Sink, China Meteorological Administration (ECSS-CMA), School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, People's Republic of China
| | | | | | - Xiaoyu Liu
- Institute of Resource, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Bing Liu
- National Engineering and Technology Center for Information Agriculture, Engineering Research Center of Smart Agriculture, Ministry of Education, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Costas J Saitanis
- Lab of Ecology and Environmental Science, Agricultural University of Athens, Athens, Greece
| | - Bo Shang
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science & Technology, Nanjing, People's Republic of China
- Key Laboratory of Ecosystem Carbon Source and Sink, China Meteorological Administration (ECSS-CMA), School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, People's Republic of China
| | - Muhammad Shahedul Alam
- Department of Agronomy and Crop Physiology, Institute for Agronomy and Plant Breeding, Justus-Liebig University Giessen, Giessen, Germany
| | - Yanru Feng
- Department of Agronomy and Crop Physiology, Institute for Agronomy and Plant Breeding, Justus-Liebig University Giessen, Giessen, Germany
| | | | - Zhaozhong Feng
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science & Technology, Nanjing, People's Republic of China.
- Key Laboratory of Ecosystem Carbon Source and Sink, China Meteorological Administration (ECSS-CMA), School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, People's Republic of China.
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4
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Takai T, Taniguchi Y, Takahashi M, Nagasaki H, Yamamoto E, Hirose S, Hara N, Akashi H, Ito J, Arai-Sanoh Y, Hori K, Fukuoka S, Sakai H, Tokida T, Usui Y, Nakamura H, Kawamura K, Asai H, Ishizaki T, Maruyama K, Mochida K, Kobayashi N, Kondo M, Tsuji H, Tsujimoto Y, Hasegawa T, Uga Y. MORE PANICLES 3, a natural allele of OsTB1/FC1, impacts rice yield in paddy fields at elevated CO 2 levels. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 114:729-742. [PMID: 36974032 DOI: 10.1111/tpj.16143] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 02/06/2023] [Indexed: 05/27/2023]
Abstract
Improving crop yield potential through an enhanced response to rising atmospheric CO2 levels is an effective strategy for sustainable crop production in the face of climate change. Large-sized panicles (containing many spikelets per panicle) have been a recent ideal plant architecture (IPA) for high-yield rice breeding. However, few breeding programs have proposed an IPA under the projected climate change. Here, we demonstrate through the cloning of the rice (Oryza sativa) quantitative trait locus for MORE PANICLES 3 (MP3) that the improvement in panicle number increases grain yield at elevated atmospheric CO2 levels. MP3 is a natural allele of OsTB1/FC1, previously reported as a negative regulator of tiller bud outgrowth. The temperate japonica allele advanced the developmental process in axillary buds, moderately promoted tillering, and increased the panicle number without negative effects on the panicle size or culm thickness in a high-yielding indica cultivar with large-sized panicles. The MP3 allele, containing three exonic polymorphisms, was observed in most accessions in the temperate japonica subgroups but was rarely observed in the indica subgroup. No selective sweep at MP3 in either the temperate japonica or indica subgroups suggested that MP3 has not been involved and utilized in artificial selection during domestication or breeding. A free-air CO2 enrichment experiment revealed a clear increase of grain yield associated with the temperate japonica allele at elevated atmospheric CO2 levels. Our findings show that the moderately increased panicle number combined with large-sized panicles using MP3 could be a novel IPA and contribute to an increase in rice production under climate change with rising atmospheric CO2 levels.
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Affiliation(s)
- Toshiyuki Takai
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8518, Japan
| | - Yojiro Taniguchi
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8518, Japan
- Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki, 305-8634, Japan
| | - Megumu Takahashi
- Institute of Vegetable and Floriculture Science, NARO, Tsukuba, Ibaraki, 305-8519, Japan
| | - Hideki Nagasaki
- Kazusa DNA Research Institute, Kisarazu, Chiba, 292-0818, Japan
| | - Eiji Yamamoto
- Meiji University, Kawasaki, Kanagawa, 214-8571, Japan
| | - Sakiko Hirose
- Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki, 305-8634, Japan
| | - Naho Hara
- Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki, 305-8634, Japan
| | - Hiroko Akashi
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Kanagawa, 244-0813, Japan
| | - Jun Ito
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Kanagawa, 244-0813, Japan
| | - Yumiko Arai-Sanoh
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8518, Japan
| | - Kiyosumi Hori
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8518, Japan
| | - Shuichi Fukuoka
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8518, Japan
| | - Hidemitsu Sakai
- Institute for Agro-Environmental Sciences, NARO, Tsukuba, Ibaraki, 305-8604, Japan
| | - Takeshi Tokida
- Institute for Agro-Environmental Sciences, NARO, Tsukuba, Ibaraki, 305-8604, Japan
| | - Yasuhiro Usui
- Central Region Agricultural Research Center, NARO, Tsukuba, Ibaraki, 305-8666, Japan
| | | | - Kensuke Kawamura
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
| | - Hidetoshi Asai
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
| | - Takuma Ishizaki
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
| | - Kyonoshin Maruyama
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
| | - Keiichi Mochida
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Kanagawa, 244-0813, Japan
- RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, 230-0045, Japan
- School of Information and Data Sciences, Nagasaki University, Nagasaki, Nagasaki, 852-8521, Japan
| | - Nobuya Kobayashi
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8518, Japan
| | - Motohiko Kondo
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8518, Japan
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, 464-8601, Japan
| | - Hiroyuki Tsuji
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Kanagawa, 244-0813, Japan
- Bioscience and Biotechnology Center, Nagoya University, Nagoya, Aichi, 464-8601, Japan
| | - Yasuhiro Tsujimoto
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
| | - Toshihiro Hasegawa
- Institute for Agro-Environmental Sciences, NARO, Tsukuba, Ibaraki, 305-8604, Japan
| | - Yusaku Uga
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8518, Japan
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5
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Agata A, Ashikari M, Sato Y, Kitano H, Hobo T. Designing rice panicle architecture via developmental regulatory genes. BREEDING SCIENCE 2023; 73:86-94. [PMID: 37168816 PMCID: PMC10165343 DOI: 10.1270/jsbbs.22075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/03/2022] [Indexed: 05/13/2023]
Abstract
Rice panicle architecture displays remarkable diversity in branch number, branch length, and grain arrangement; however, much remains unknown about how such diversity in patterns is generated. Although several genes related to panicle branch number and panicle length have been identified, how panicle branch number and panicle length are coordinately regulated is unclear. Here, we show that panicle length and panicle branch number are independently regulated by the genes Prl5/OsGA20ox4, Pbl6/APO1, and Gn1a/OsCKX2. We produced near-isogenic lines (NILs) in the Koshihikari genetic background harboring the elite alleles for Prl5, regulating panicle rachis length; Pbl6, regulating primary branch length; and Gn1a, regulating panicle branching in various combinations. A pyramiding line carrying Prl5, Pbl6, and Gn1a showed increased panicle length and branching without any trade-off relationship between branch length or number. We successfully produced various arrangement patterns of grains by changing the combination of alleles at these three loci. Improvement of panicle architecture raised yield without associated negative effects on yield-related traits except for panicle number. Three-dimensional (3D) analyses by X-ray computed tomography (CT) of panicles revealed that differences in panicle architecture affect grain filling. Importantly, we determined that Prl5 improves grain filling without affecting grain number.
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Affiliation(s)
- Ayumi Agata
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi 464-8601, Japan
- National Institute of Genetics, Mishima, Shizuoka 411-8540, Japan
| | - Motoyuki Ashikari
- Bioscience and Biotechnology Center, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Yutaka Sato
- National Institute of Genetics, Mishima, Shizuoka 411-8540, Japan
| | - Hidemi Kitano
- Bioscience and Biotechnology Center, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Tokunori Hobo
- Bioscience and Biotechnology Center, Nagoya University, Nagoya, Aichi 464-8601, Japan
- Corresponding author (e-mail: )
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6
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Wittern LM, Barrero JM, Bovill WD, Verbyla KL, Hughes T, Swain SM, Steed G, Webb AAR, Gardner K, Greenland A, Jacobs J, Frohberg C, Schmidt RC, Cavanagh C, Rohde A, Davey MW, Hannah MA. Overexpression of the WAPO-A1 gene increases the number of spikelets per spike in bread wheat. Sci Rep 2022; 12:14229. [PMID: 35987959 PMCID: PMC9392761 DOI: 10.1038/s41598-022-18614-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 08/16/2022] [Indexed: 11/09/2022] Open
Abstract
Two homoeologous QTLs for number of spikelets per spike (SPS) were mapped on chromosomes 7AL and 7BL using two wheat MAGIC populations. Sets of lines contrasting for the QTL on 7AL were developed which allowed for the validation and fine mapping of the 7AL QTL and for the identification of a previously described candidate gene, WHEAT ORTHOLOG OF APO1 (WAPO1). Using transgenic overexpression in both a low and a high SPS line, we provide a functional validation for the role of this gene in determining SPS also in hexaploid wheat. We show that the expression levels of this gene positively correlate with SPS in multiple MAGIC founder lines under field conditions as well as in transgenic lines grown in the greenhouse. This work highlights the potential use of WAPO1 in hexaploid wheat for further yield increases. The impact of WAPO1 and SPS on yield depends on other genetic and environmental factors, hence, will require a finely balanced expression level to avoid the development of detrimental pleiotropic phenotypes.
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Affiliation(s)
- Lukas M Wittern
- Department of Plant Sciences, University of Cambridge, Cambridge, CB2 3EA, UK
| | - Jose M Barrero
- Agriculture and Food, Black Mountain Science and Innovation Park, Commonwealth Scientific and Industrial Research Organisation, Canberra, ACT, 2601, Australia
| | - William D Bovill
- Agriculture and Food, Black Mountain Science and Innovation Park, Commonwealth Scientific and Industrial Research Organisation, Canberra, ACT, 2601, Australia
| | - Klara L Verbyla
- Agriculture and Food, Black Mountain Science and Innovation Park, Commonwealth Scientific and Industrial Research Organisation, Canberra, ACT, 2601, Australia
| | - Trijntje Hughes
- Agriculture and Food, Black Mountain Science and Innovation Park, Commonwealth Scientific and Industrial Research Organisation, Canberra, ACT, 2601, Australia
| | - Steve M Swain
- Agriculture and Food, Black Mountain Science and Innovation Park, Commonwealth Scientific and Industrial Research Organisation, Canberra, ACT, 2601, Australia
| | - Gareth Steed
- Department of Plant Sciences, University of Cambridge, Cambridge, CB2 3EA, UK
| | - Alex A R Webb
- Department of Plant Sciences, University of Cambridge, Cambridge, CB2 3EA, UK
| | - Keith Gardner
- National Institute of Agricultural Botany (NIAB), Huntingdon Road, Cambridge, CB3 0LE, UK
| | - Andy Greenland
- National Institute of Agricultural Botany (NIAB), Huntingdon Road, Cambridge, CB3 0LE, UK
| | - John Jacobs
- BASF, BBCC - Innovation Center Gent, Technologiepark 101, 9052, Ghent, Belgium
| | - Claus Frohberg
- BASF, BBCC - Innovation Center Gent, Technologiepark 101, 9052, Ghent, Belgium
| | | | - Colin Cavanagh
- BASF Australia Ltd., 28 Freshwater Place, Melbourne, 3006, Australia
| | - Antje Rohde
- BASF, BBCC - Innovation Center Gent, Technologiepark 101, 9052, Ghent, Belgium
| | - Mark W Davey
- BASF, BBCC - Innovation Center Gent, Technologiepark 101, 9052, Ghent, Belgium
| | - Matthew A Hannah
- BASF, BBCC - Innovation Center Gent, Technologiepark 101, 9052, Ghent, Belgium.
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7
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Gao B, Hu S, Jing L, Wang Y, Zhu J, Wang K, Li H, Sun X, Wang Y, Yang L. Impact of Elevated CO 2 and Reducing the Source-Sink Ratio by Partial Defoliation on Rice Grain Quality - A 3-Year Free-Air CO 2 Enrichment Study. FRONTIERS IN PLANT SCIENCE 2021; 12:788104. [PMID: 35003176 PMCID: PMC8733338 DOI: 10.3389/fpls.2021.788104] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 12/06/2021] [Indexed: 05/26/2023]
Abstract
Evaluating the impact of increasing CO2 on rice quality is becoming a global concern. However, whether adjusting the source-sink ratio will affect the response of rice grain quality to elevated CO2 concentrations remains unknown. In 2016-2018, we conducted a free-air CO2 enrichment experiment using a popular japonica cultivar grown at ambient and elevated CO2 levels (eCO2, increased by 200 ppm), reducing the source-sink ratio via cutting leaves (LC) at the heading stage, to investigate the effects of eCO2 and LC and their interactions on rice processing, appearance, nutrition, and eating quality. Averaged across 3 years, eCO2 significantly decreased brown rice percentage (-0.5%), milled rice percentage (-2.1%), and head rice percentage (-4.2%) but increased chalky grain percentage (+ 22.3%) and chalkiness degree (+ 26.3%). Markedly, eCO2 increased peak viscosity (+ 2.9%) and minimum viscosity (+ 3.8%) but decreased setback (-96.1%) of powder rice and increased the appearance (+ 4.5%), stickiness (+ 3.5%) and balance degree (+ 4.8%) of cooked rice, while decreasing the hardness (-6.7%), resulting in better palatability (+ 4.0%). Further, eCO2 significantly decreased the concentrations of protein, Ca, S, and Cu by 5.3, 4.7, 2.2, and 9.6%, respectively, but increased K concentration by 3.9%. Responses of nutritional quality in different grain positions (brown and milled rice) to eCO2 showed the same trend. Compared with control treatment, LC significantly increased chalky grain percentage, chalkiness degree, protein concentration, mineral element levels (except for B and Mn), and phytic acid concentration. Our results indicate that eCO2 reduced rice processing suitability, appearance, and nutritional quality but improved the eating quality. Rice quality varied significantly among years; however, few CO2 by year, CO2 by LC, or CO2 by grain position interactions were detected, indicating that the effects of eCO2 on rice quality varied little with the growing seasons, the decrease in the source-sink ratios or the different grain positions.
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Affiliation(s)
- Bo Gao
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou, China
- Jiangsu Coastal Area Institute of Agricultural Sciences, Yancheng, China
| | - Shaowu Hu
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou, China
| | - Liquan Jing
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou, China
| | - Yunxia Wang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, China
| | - Jianguo Zhu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
| | - Kai Wang
- Jiangsu Coastal Area Institute of Agricultural Sciences, Yancheng, China
| | - Hongyang Li
- Jiangsu Coastal Area Institute of Agricultural Sciences, Yancheng, China
| | - Xingxing Sun
- Jiangsu Coastal Area Institute of Agricultural Sciences, Yancheng, China
| | - Yulong Wang
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou, China
| | - Lianxin Yang
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou, China
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8
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Zhou J, Gao Y, Wang J, Liu C, Wang Z, Lv M, Zhang X, Zhou Y, Dong G, Wang Y, Huang J, Hui D, Yang Z, Yao Y. Elevated atmospheric CO 2 concentration triggers redistribution of nitrogen to promote tillering in rice. PLANT-ENVIRONMENT INTERACTIONS (HOBOKEN, N.J.) 2021; 2:125-136. [PMID: 37283862 PMCID: PMC10168068 DOI: 10.1002/pei3.10046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 04/01/2021] [Accepted: 04/07/2021] [Indexed: 06/08/2023]
Abstract
Elevated atmospheric CO2 concentration (eCO2) often reduces nitrogen (N) content in rice plants and stimulates tillering. However, there is a general consensus that reduced N would constrain rice tillering. To resolve this contradiction, we investigated N distribution and transcriptomic changes in different rice plant organs after subjecting them to eCO2 and different N application rates. Our results showed that eCO2 significantly promoted rice tillers (by 0.6, 1.1, 1.7, and 2.1 tillers/plant at 0, 75, 150, and 225 kg N ha-1 N application rates, respectively) and more tillers were produced under higher N application rates, confirming that N availability constrained tillering in the early stages of growth. Although N content declined in the leaves (-11.0 to -20.7 mg g-1) and sheaths (-9.8 to -28.8 mg g-1) of rice plants exposed to eCO2, the N content of newly emerged tillers on plants exposed to eCO2 equaled or exceeded the N content of tillers produced under ambient CO2 conditions. Apparently, the redistribution of N within the plant per se was a critical adaptation strategy to the eCO2 condition. Transcriptomic analysis revealed that eCO2 induced less extensive alteration of gene expression than did N application. Most importantly, the expression levels of multiple N-related transporters and receptors such as nitrate transporter NRT2.3a/b and NRT1.1a/b were differentially regulated in leaf and shoot apical meristem, suggesting that multiple genes were involved in sensing the N signal and transporting N metabolites to adapt to eCO2. The redistribution of N in different organs could be a universal adaptation strategy of terrestrial plants to eCO2.
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Affiliation(s)
- Juan Zhou
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain CropsCollege of AgricultureYangzhou UniversityYangzhouChina
| | - Yingbo Gao
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain CropsCollege of AgricultureYangzhou UniversityYangzhouChina
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular BreedingCollege of AgricultureYangzhou UniversityYangzhouChina
| | - Junpeng Wang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain CropsCollege of AgricultureYangzhou UniversityYangzhouChina
| | - Chang Liu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain CropsCollege of AgricultureYangzhou UniversityYangzhouChina
| | - Zi Wang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain CropsCollege of AgricultureYangzhou UniversityYangzhouChina
| | - Minjia Lv
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain CropsCollege of AgricultureYangzhou UniversityYangzhouChina
| | - Xiaoxiang Zhang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain CropsCollege of AgricultureYangzhou UniversityYangzhouChina
- Lixiahe Agricultural Research Institute of Jiangsu ProvinceYangzhouChina
| | - Yong Zhou
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain CropsCollege of AgricultureYangzhou UniversityYangzhouChina
| | - Guichun Dong
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain CropsCollege of AgricultureYangzhou UniversityYangzhouChina
| | - Yulong Wang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain CropsCollege of AgricultureYangzhou UniversityYangzhouChina
| | - Jianye Huang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain CropsCollege of AgricultureYangzhou UniversityYangzhouChina
| | - Dafeng Hui
- Department of Biological SciencesTennessee State UniversityNashvilleTennesseeUSA
| | - Zefeng Yang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain CropsCollege of AgricultureYangzhou UniversityYangzhouChina
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular BreedingCollege of AgricultureYangzhou UniversityYangzhouChina
| | - Youli Yao
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co‐Innovation Center for Modern Production Technology of Grain CropsCollege of AgricultureYangzhou UniversityYangzhouChina
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular BreedingCollege of AgricultureYangzhou UniversityYangzhouChina
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9
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Aluko OO, Li C, Wang Q, Liu H. Sucrose Utilization for Improved Crop Yields: A Review Article. Int J Mol Sci 2021; 22:4704. [PMID: 33946791 PMCID: PMC8124652 DOI: 10.3390/ijms22094704] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/14/2021] [Accepted: 04/17/2021] [Indexed: 12/13/2022] Open
Abstract
Photosynthetic carbon converted to sucrose is vital for plant growth. Sucrose acts as a signaling molecule and a primary energy source that coordinates the source and sink development. Alteration in source-sink balance halts the physiological and developmental processes of plants, since plant growth is mostly triggered when the primary assimilates in the source leaf balance with the metabolic needs of the heterotrophic sinks. To measure up with the sink organ's metabolic needs, the improvement of photosynthetic carbon to synthesis sucrose, its remobilization, and utilization at the sink level becomes imperative. However, environmental cues that influence sucrose balance within these plant organs, limiting positive yield prospects, have also been a rising issue over the past few decades. Thus, this review discusses strategies to improve photosynthetic carbon assimilation, the pathways actively involved in the transport of sucrose from source to sink organs, and their utilization at the sink organ. We further emphasize the impact of various environmental cues on sucrose transport and utilization, and the strategic yield improvement approaches under such conditions.
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Affiliation(s)
- Oluwaseun Olayemi Aluko
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China; (O.O.A.); (C.L.)
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Chuanzong Li
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China; (O.O.A.); (C.L.)
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Qian Wang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China; (O.O.A.); (C.L.)
| | - Haobao Liu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China; (O.O.A.); (C.L.)
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10
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Hu S, Wang Y, Yang L. Response of rice yield traits to elevated atmospheric CO 2 concentration and its interaction with cultivar, nitrogen application rate and temperature: A meta-analysis of 20 years FACE studies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 764:142797. [PMID: 33131850 DOI: 10.1016/j.scitotenv.2020.142797] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/02/2020] [Accepted: 10/02/2020] [Indexed: 05/12/2023]
Abstract
The Free Air CO2 Enrichment (FACE) facility simulates future high CO2 environment in an open field, and is considered the best approach to assess the actual response of crop production to climate change. This meta-analysis synthesizes all studies conducted under FACE conditions on rice yield response to elevated atmospheric CO2 concentration ([CO2]) and its interaction with cultivar, nitrogen application rate and temperature. On average, elevated [CO2] enhanced rice yield by 16.2%, which resulted from positive response of each yield component. The yield enhancement by elevated [CO2] of hybrid rice (24.7%) was significantly greater than conventional rice (14.2%), and among conventional rice cultivars, indica rice had a larger yield response (20.4%) than japonica rice (12.7%). The superior performance of hybrid and indica rice under FACE conditions was mainly attributed to the larger increase in spikelet density. The response of rice yield to elevated [CO2] varied with nitrogen supply. The maximum increase of 21.1% occurred at the nitrogen application rate of 21-30 g m-2. Both insufficient and excess nitrogen supply negate yield increase by FACE but through different approaches. Elevated [CO2] increased rice yield by 16.7% at ambient temperature but only 10.1% at elevated temperature (1-2 °C); The smaller yield increase at elevated temperature was due to the negative response of filled grain percentage and grain mass. In conclusion, atmospheric CO2 concentration projected in the middle of this century will enhance rice yield mainly through the increase of spikelet density, whereas the magnitude of CO2 fertilizer effect will be affected by the cultivar, nitrogen application rate and temperature.
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Affiliation(s)
- Shaowu Hu
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou 225009, PR China
| | - Yunxia Wang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225009, PR China
| | - Lianxin Yang
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou 225009, PR China.
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11
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Honda S, Ohkubo S, San NS, Nakkasame A, Tomisawa K, Katsura K, Ookawa T, Nagano AJ, Adachi S. Maintaining higher leaf photosynthesis after heading stage could promote biomass accumulation in rice. Sci Rep 2021; 11:7579. [PMID: 33828128 PMCID: PMC8027620 DOI: 10.1038/s41598-021-86983-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 03/23/2021] [Indexed: 11/16/2022] Open
Abstract
Leaf photosynthetic rate changes across the growing season as crop plants age. Most studies of leaf photosynthesis focus on a specific growth stage, leaving the question of which pattern of photosynthetic dynamics maximizes crop productivity unanswered. Here we obtained high-frequency data of canopy leaf CO2 assimilation rate (A) of two elite rice (Oryza sativa) cultivars and 76 inbred lines across the whole growing season. The integrated A value after heading was positively associated with crop growth rate (CGR) from heading to harvest, but that before heading was not. A curve-smoothing analysis of A after heading showed that accumulated A at > 80% of its maximum (A80) was positively correlated with CGR in analyses of all lines mixed and of lines grouped by genetic background, while the maximum A and accumulated A at ≤ 80% were less strongly correlated with CGR. We also found a genomic region (~ 12.2 Mb) that may enhance both A80 and aboveground biomass at harvest. We propose that maintaining a high A after heading, rather than having high maximum A, is a potential target for enhancing rice biomass accumulation.
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Affiliation(s)
- Sotaro Honda
- Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan
| | - Satoshi Ohkubo
- Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan
| | - Nan Su San
- Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan
| | - Anothai Nakkasame
- Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan
| | - Kazuki Tomisawa
- Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan
| | - Keisuke Katsura
- Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan
| | - Taiichiro Ookawa
- Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan
| | - Atsushi J Nagano
- Faculty of Agriculture, Ryukoku University, Yokotani 1-5, Seta Oe-cho, Otsu, Shiga, 520-2194, Japan
| | - Shunsuke Adachi
- Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan.
- College of Agriculture, Ibaraki University, 3-21-1 Chuo, Ami, Inashiki, Ibaraki, 300-0393, Japan.
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12
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Ainsworth EA, Long SP. 30 years of free-air carbon dioxide enrichment (FACE): What have we learned about future crop productivity and its potential for adaptation? GLOBAL CHANGE BIOLOGY 2021; 27:27-49. [PMID: 33135850 DOI: 10.1111/gcb.15375] [Citation(s) in RCA: 125] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/17/2020] [Accepted: 09/22/2020] [Indexed: 05/03/2023]
Abstract
Free-air CO2 enrichment (FACE) allows open-air elevation of [CO2 ] without altering the microclimate. Its scale uniquely supports simultaneous study from physiology and yield to soil processes and disease. In 2005 we summarized results of then 28 published observations by meta-analysis. Subsequent studies have combined FACE with temperature, drought, ozone, and nitrogen treatments. Here, we summarize the results of now almost 250 observations, spanning 14 sites and five continents. Across 186 independent studies of 18 C3 crops, elevation of [CO2 ] by ca. 200 ppm caused a ca. 18% increase in yield under non-stress conditions. Legumes and root crops showed a greater increase and cereals less. Nitrogen deficiency reduced the average increase to 10%, as did warming by ca. 2°C. Two conclusions of the 2005 analysis were that C4 crops would not be more productive in elevated [CO2 ], except under drought, and that yield responses of C3 crops were diminished by nitrogen deficiency and wet conditions. Both stand the test of time. Further studies of maize and sorghum showed no yield increase, except in drought, while soybean productivity was negatively affected by early growing season wet conditions. Subsequent study showed reduced levels of nutrients, notably Zn and Fe in most crops, and lower nitrogen and protein in the seeds of non-leguminous crops. Testing across crop germplasm revealed sufficient variation to maintain nutrient content under rising [CO2 ]. A strong correlation of yield response under elevated [CO2 ] to genetic yield potential in both rice and soybean was observed. Rice cultivars with the highest yield potential showed a 35% yield increase in elevated [CO2 ] compared to an average of 14%. Future FACE experiments have the potential to develop cultivars and management strategies for co-promoting sustainability and productivity under future elevated [CO2 ].
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Affiliation(s)
- Elizabeth A Ainsworth
- USDA ARS Global Change and Photosynthesis Research Unit, Urbana, IL, USA
- Departments of Plant Biology and of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Stephen P Long
- Departments of Plant Biology and of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
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13
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Panda D, Sahu N, Behera PK, Lenka K. Genetic variability of panicle architecture in indigenous rice landraces of Koraput region of Eastern Ghats of India for crop improvement. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2020; 26:1961-1971. [PMID: 33088042 PMCID: PMC7548273 DOI: 10.1007/s12298-020-00871-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 08/12/2020] [Accepted: 08/18/2020] [Indexed: 06/11/2023]
Abstract
Panicle architecture is an important character that influence reproductive success and contributes directly to grain yield. In the present study, we evaluated diversity of panicle traits in 77 indigenous rice landraces from Koraput and compared with three popularity cultivated hybrid varieties of the locality for possibility of using in crop improvement program. Significant morphological variations of panicle traits such as panicle number, panicle angle, panicle weight, panicle length, grain number and grain weight were recorded in studied rice landraces. Based on the principal component analysis, first two axis of principal component captures 56.34% of the total variation and indicated significant variability of panicle traits among the genotypes. Panicle length, panicle weight, grain number and flag leaf area are the major determinants of phenotypic diversity. Multiple correlation between traits indicated that panicle weight in studied rice landraces were positively correlated with panicle number, grain number and leaf area and negatively associated with panicle length, panicle angle and chaff number. The genetic advance as percentage of mean (GAM) ranged from 22.19% for panicle length to 147.02% for panicle angle. High GAM along with heritability was observed for panicle number, panicle weight, grain number and chaff number and are important traits for selection during crop improvement. Some of the landraces such as Matidhan, Bhatagurumukhi, Chiklakoli and Kamuntana remarkably showed superior panicle weight along with higher grain number and length of panicle, which can be used in the future rice breeding program.
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Affiliation(s)
- Debabrata Panda
- Department of Biodiversity and Conservation of Natural Resources, Central University of Odisha, Koraput, Odisha 764021 India
| | - Neelamadhab Sahu
- Department of Biodiversity and Conservation of Natural Resources, Central University of Odisha, Koraput, Odisha 764021 India
| | - Prafulla K. Behera
- Department of Biodiversity and Conservation of Natural Resources, Central University of Odisha, Koraput, Odisha 764021 India
| | - Kartik Lenka
- MS Swaminathan Research Foundation, Jeypore, Koraput, Odisha 764002 India
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14
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Yang A, Li Q, Chen L, Zhang WH. A rice small GTPase, Rab6a, is involved in the regulation of grain yield and iron nutrition in response to CO2 enrichment. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:5680-5688. [PMID: 32525991 PMCID: PMC7501819 DOI: 10.1093/jxb/eraa279] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 06/09/2020] [Indexed: 05/31/2023]
Abstract
Despite extensive studies on the effects of elevated atmospheric CO2 concentrations ([CO2]) on rice, the molecular mechanisms and signaling events underlying the adaptation of plants remain largely elusive. Here, we report that OsRab6a, which encodes a small GTPase, is involved in the regulation of rice growth, grain yield, and accumulation of iron (Fe) in response to elevated [CO2] (e[CO2]). We generated transgenic plants with OsRab6a-overexpression (-OE) together with OsRab6a-RNAi lines, and found no differences in growth and grain yield among them and wild-type (WT) plants under ambient [CO2] conditions. Under e[CO2] conditions, growth and grain yield of the WT and OsRab6a-OE plants were enhanced, with a greater effect being observed in the latter. In contrast, there were no effects of e[CO2] on growth and grain yield of the OsRab6a-RNAi plants. Photosynthetic rates in both the WT and OsRab6a-OE plants were stimulated by e[CO2], with the magnitude of the increase being higher in OsRab6a-OE plants. Fe concentrations in vegetative tissues and the grain of the WT and transgenic plants were reduced by e[CO2], and the magnitude of the decrease was lower in the OE plants than in the WT and RNAi plants. Genes associated with Fe acquisition in the OsRab6a-OE lines exhibited higher levels of expression than those in the WT and the RNAi lines under e[CO2]. Analysis of our data using Dunnett's multiple comparison test suggested that OsRab6a is an important molecular regulator that underlies the adaptation of rice to e[CO2] by controlling photosynthesis and Fe accumulation.
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Affiliation(s)
- An Yang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, the Chinese Academy of Sciences, Beijing, China
| | - Qian Li
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, China
| | - Lei Chen
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Wen-Hao Zhang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, the Chinese Academy of Sciences, Beijing, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
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15
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Fabre D, Dingkuhn M, Yin X, Clément-Vidal A, Roques S, Soutiras A, Luquet D. Genotypic variation in source and sink traits affects the response of photosynthesis and growth to elevated atmospheric CO 2. PLANT, CELL & ENVIRONMENT 2020; 43:579-593. [PMID: 31961455 DOI: 10.1111/pce.13693] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 11/26/2019] [Indexed: 05/12/2023]
Abstract
This study aimed to understand the response of photosynthesis and growth to e-CO2 conditions (800 vs. 400 μmol mol-1 ) of rice genotypes differing in source-sink relationships. A proxy trait called local C source-sink ratio was defined as the ratio of flag leaf area to the number of spikelets on the corresponding panicle, and five genotypes differing in this ratio were grown in a controlled greenhouse. Differential CO2 resources were applied either during the 2 weeks following heading (EXP1) or during the whole growth cycle (EXP2). Under e-CO2 , low source-sink ratio cultivars (LSS) had greater gains in photosynthesis, and they accumulated less nonstructural carbohydrate in the flag leaf than high source-sink ratio cultivars (HSS). In EXP2, grain yield and biomass gain was also greater in LSS probably caused by their strong sink. Photosynthetic capacity response to e-CO2 was negatively correlated across genotypes with local C source-sink ratio, a trait highly conserved across environments. HSS were sink-limited under e-CO2 , probably associated with low triose phosphate utilization (TPU) capacity. We suggest that the local C source-sink ratio is a potential target for selecting more CO2 -responsive cultivars, pending validation for a broader genotypic spectrum and for field conditions.
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Affiliation(s)
- Denis Fabre
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Michael Dingkuhn
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Xinyou Yin
- Centre for Crop Systems Analysis, Department of Plant Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - Anne Clément-Vidal
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Sandrine Roques
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Armelle Soutiras
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Delphine Luquet
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Univ Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
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16
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Fabre D, Yin X, Dingkuhn M, Clément-Vidal A, Roques S, Rouan L, Soutiras A, Luquet D. Is triose phosphate utilization involved in the feedback inhibition of photosynthesis in rice under conditions of sink limitation? JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:5773-5785. [PMID: 31269202 DOI: 10.1093/jxb/erz318] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 06/27/2019] [Indexed: 05/02/2023]
Abstract
This study aimed to understand the physiological basis of rice photosynthetic response to C source-sink imbalances, focusing on the dynamics of the photosynthetic parameter triose phosphate utilization (TPU). Here, rice (Oriza sativa L.) indica cultivar IR64 were grown in controlled environment chambers under current ambient CO2 concentration until heading, and thereafter two CO2 treatments (400 and 800 μmol mol-1) were compared in the presence and absence of a panicle-pruning treatment modifying the C sink. At 2 weeks after heading, photosynthetic parameters derived from CO2 response curves, and non-structural carbohydrate content of flag leaf and internodes were measured three to four times of day. Spikelet number per panicle and flag leaf area on the main culm were recorded. Net C assimilation and TPU decreased progressively after midday in panicle-pruned plants, especially under 800 μmol mol-1 CO2. This TPU reduction was explained by sucrose accumulation in the flag leaf resulting from the sink limitation. Taking together, our findings suggest that TPU is involved in the regulation of photosynthesis in rice under elevated CO2 conditions, and that sink limitation effects should be considered in crop models.
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Affiliation(s)
- Denis Fabre
- CIRAD, UMR AGAP, Montpellier, France
- Univ. Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Xinyou Yin
- Centre for Crop Systems Analysis, Department of Plant Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - Michael Dingkuhn
- CIRAD, UMR AGAP, Montpellier, France
- Univ. Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Anne Clément-Vidal
- CIRAD, UMR AGAP, Montpellier, France
- Univ. Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Sandrine Roques
- CIRAD, UMR AGAP, Montpellier, France
- Univ. Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Lauriane Rouan
- CIRAD, UMR AGAP, Montpellier, France
- Univ. Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Armelle Soutiras
- CIRAD, UMR AGAP, Montpellier, France
- Univ. Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Delphine Luquet
- CIRAD, UMR AGAP, Montpellier, France
- Univ. Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
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17
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Hasegawa T, Sakai H, Tokida T, Usui Y, Nakamura H, Wakatsuki H, Chen CP, Ikawa H, Zhang G, Nakano H, Matsushima MY, Hayashi K. A High-Yielding Rice Cultivar "Takanari" Shows No N Constraints on CO 2 Fertilization. FRONTIERS IN PLANT SCIENCE 2019; 10:361. [PMID: 31024578 PMCID: PMC6460941 DOI: 10.3389/fpls.2019.00361] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 03/08/2019] [Indexed: 05/06/2023]
Abstract
Enhancing crop yield response to elevated CO2 concentrations (E-[CO2]) is an important adaptation measure to climate change. A high-yielding indica rice cultivar "Takanari" has recently been identified as a potential candidate for high productivity in E-[CO2] resulting from its large sink and source capacities. To fully utilize these traits, nitrogen should play a major role, but it is unknown how N levels influence the yield response of Takanari to E-[CO2]. We therefore compared grain yield and quality of Takanari with those of Koshihikari, a standard japonica cultivar, in response to Free-Air CO2 enrichment (FACE, +200 μmol mol-1) under three N levels (0, 8, and 12 g m-2) over three seasons. The biomass of both cultivars increased under E-[CO2] at all N levels; however, the harvest index decreased under E-[CO2] in the N-limited treatment for Koshihikari but not for Takanari. The decreased harvest index of Koshihikari resulted from limited enhancement of spikelet number under N-limitation. In contrast, spikelet number increased in E-[CO2] in Takanari even without N application, resulting in significant yield enhancement, averaging 18% over 3 years, whereas Koshihikari exhibited virtually no increase in yield in E-[CO2] under the N-limited condition. Grain appearance quality of Koshihikari was severely reduced by E-[CO2], most notably in N-limited and hot conditions, by a substantial increase in chalky grain, but chalky grain % did not increase in E-[CO2] even without N fertilizer. These results indicated that Takanari could retain its high yield advantage over Koshihikari with limited increase in chalkiness even under limited N conditions and that it could be a useful genetic resource for improving N use efficiency under E-[CO2].
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Affiliation(s)
- Toshihiro Hasegawa
- Tohoku Agricultural Research Center, National Agriculture and Food Research Organization, Morioka, Japan
| | - Hidemitsu Sakai
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Takeshi Tokida
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Yasuhiro Usui
- Research Center for Agricultural Information Technology, National Agriculture and Food Research Organization, Tsukuba, Japan
- Hokkaido Agricultural Research Center, National Agriculture and Food Research Organization, Memuro, Japan
| | | | - Hitomi Wakatsuki
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Charles P. Chen
- Department of Biology and Chemistry, Azusa Pacific University, Azusa, CA, United States
| | - Hiroki Ikawa
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Guoyou Zhang
- Tohoku Agricultural Research Center, National Agriculture and Food Research Organization, Morioka, Japan
| | - Hiroshi Nakano
- Kyushu Okinawa Agricultural Research Center, National Agriculture and Food Research Organization, Chikugo, Japan
| | | | - Kentaro Hayashi
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization, Tsukuba, Japan
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HORIE T. Global warming and rice production in Asia: Modeling, impact prediction and adaptation. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2019; 95:211-245. [PMID: 31189777 PMCID: PMC6751296 DOI: 10.2183/pjab.95.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 03/01/2019] [Indexed: 05/11/2023]
Abstract
Since the projection of global warming emerged in 1980s with the potential of laying enormous impacts on agriculture and food security of the world, we have conducted experimental and modeling studies for clarifying its effects on rice production in Asia and for developing adaptive rice production technologies. On the basis of measurement of rice responses to climate and carbon dioxide concentration ([CO2]), the dynamic process model named SIMRIW was developed to predict global warming effects on irrigated rice. The model predicted differential regional effects of the projected global warming by doubling [CO2] on the rice yield over Asia, and indicated that high tolerance to heat-induced spikelet sterility and high yield potential under elevated [CO2] are the two important characteristics required for rice genotypes adaptive to global warming environment. Further, genetic traits associated with these characteristics and their genetic resources for breeding adaptive genotypes were identified from diverse rice germplasms. This article reviews our initiative studies in the light of the recent studies, and points out further research that is needed for better understanding and overcoming of this unprecedentedly large problem.
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Shimono H, Farquhar G, Brookhouse M, Busch FA, O Grady A, Tausz M, Pinkard EA. Prescreening in large populations as a tool for identifying elevated CO 2-responsive genotypes in plants. FUNCTIONAL PLANT BIOLOGY : FPB 2018; 46:1-14. [PMID: 30939254 DOI: 10.1071/fp18087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 08/13/2018] [Indexed: 05/21/2023]
Abstract
Elevated atmospheric CO2 concentration (e[CO2]) can stimulate the photosynthesis and productivity of C3 species including food and forest crops. Intraspecific variation in responsiveness to e[CO2] can be exploited to increase productivity under e[CO2]. However, active selection of genotypes to increase productivity under e[CO2] is rarely performed across a wide range of germplasm, because of constraints of space and the cost of CO2 fumigation facilities. If we are to capitalise on recent advances in whole genome sequencing, approaches are required to help overcome these issues of space and cost. Here, we discuss the advantage of applying prescreening as a tool in large genome×e[CO2] experiments, where a surrogate for e[CO2] was used to select cultivars for more detailed analysis under e[CO2] conditions. We discuss why phenotypic prescreening in population-wide screening for e[CO2] responsiveness is necessary, what approaches could be used for prescreening for e[CO2] responsiveness, and how the data can be used to improve genetic selection of high-performing cultivars. We do this within the framework of understanding the strengths and limitations of genotype-phenotype mapping.
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Affiliation(s)
- Hiroyuki Shimono
- Crop Science Laboratory, Faculty of Agriculture, Iwate University, Morioka, 2032162, Japan
| | - Graham Farquhar
- Research School of Biology, Australian National University, Canberra, ACT 2600, Australia
| | - Matthew Brookhouse
- Research School of Biology, Australian National University, Canberra, ACT 2600, Australia
| | - Florian A Busch
- Research School of Biology, Australian National University, Canberra, ACT 2600, Australia
| | | | - Michael Tausz
- Birmingham Institute of Forest Research, University of Birmingham, Birmingham, 35203, UK
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