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Sun YW, Wang XY, Liu L, Zhang Q, Xi YJ, Wang PW. Cloning and functional study of GmRPI2, which is the critical gene of photosynthesis in soybean. BREEDING SCIENCE 2023; 73:290-299. [PMID: 37840982 PMCID: PMC10570876 DOI: 10.1270/jsbbs.23002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/18/2023] [Indexed: 10/17/2023]
Abstract
Light provides energy for photosynthesis and is also an important environmental signal that regulates plant growth and development. Ribose-5-phosphate isomerase plays a crucial role in photosynthesis. However, ribose-5-phosphate isomerase has yet to be studied in soybean photosynthesis. To understand the biological function of GmRPI2, in this study, GmRPI2 was cloned, plant overexpression vectors and gene editing vectors were successfully constructed, and transformed into recipient soybean JN74 using the Agrobacterium-mediated method. Using qRT-PCR, we analyzed that GmRPI2 gene expression was highest in leaves, second highest in roots, and lowest in stems. Promoter analysis revealed the presence of multiple cis-acting elements related to light response in the promoter region of GmRPI2. Compared with the control soybean plants, the net photosynthetic rate and transpiration rate of the overexpression lines were higher than those of the control and gene editing lines, while the intercellular CO2 concentration was significantly lower than that of the control and gene editing lines; the total chlorophyll, chlorophyll a, chlorophyll b contents and soluble sugar contents of the overexpression plants were significantly higher than those of the recipient and editing plants, indicating that the GmRPI2 gene can increase The GmRPI2 gene can increase the photosynthetic capacity of soybean plants, providing a theoretical basis and genetic resources for improving soybean yield by regulating photosynthetic efficiency.
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Affiliation(s)
- Yu Wei Sun
- JiLin Agricultural University, The Center of Plant Biotechnology, Chang Chun 130118, China
| | - Xin Yu Wang
- JiLin Agricultural University, The Center of Plant Biotechnology, Chang Chun 130118, China
| | - Lu Liu
- JiLin Agricultural University, The Center of Plant Biotechnology, Chang Chun 130118, China
| | - Qi Zhang
- JiLin Agricultural University, The Center of Plant Biotechnology, Chang Chun 130118, China
| | - Yong Jing Xi
- JiLin Agricultural University, The Center of Plant Biotechnology, Chang Chun 130118, China
| | - Pi Wu Wang
- JiLin Agricultural University, The Center of Plant Biotechnology, Chang Chun 130118, China
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Morita R, Crofts N, Miura S, Ikeda KI, Aoki N, Fukayama H, Fujita N. Characterization of the Functions of Starch Synthase IIIb Expressed in the Vegetative Organs of Rice (Oryza sativa L.). PLANT & CELL PHYSIOLOGY 2023; 64:94-106. [PMID: 36222360 DOI: 10.1093/pcp/pcac143] [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: 08/17/2022] [Revised: 10/08/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
Rice is the model C3 crop for investigating the starch biosynthesis mechanism in endosperm because of its importance in grain production. However, little is known about starch biosynthesis in the vegetative organs of rice. In this study, we used novel rice mutants by inserting Tos17 into the starch synthase (SS) IIIb gene, which is mainly expressed in the leaf sheath (LS) and leaf blade (LB), and an ss1 mutant to clarify the differences in roles among SS isozymes during starch biosynthesis. Native polyacrylamide gel electrophoresis (PAGE)/activity staining for SS, using LS and LB of ss mutants, revealed that the lowest migrating SS activity bands on the gel were derived from SSIIIb activity and those of two ss3b mutants were not detected. The apparent amylose content of LS starch of ss3b mutants increased. Moreover, the chain-length distribution and size-exclusion chromatography analysis using ss mutants showed that SSIIIb and SSI synthesize the B2-B3 chain and A-B1 chain of amylopectin in the LS and LB respectively. Interestingly, we also found that starch contents were decreased in the LS and LB of ss3b mutants, although SSI deficiency did not affect the starch levels. All these results indicated that SSIIIb synthesizes the long chain of amylopectin in the LS and LB similar to SSIIIa in the endosperm, while SSI synthesizes the short chain in the vegetative organ as the same in the endosperm.
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Affiliation(s)
- Ryutaro Morita
- Laboratory of Crop Science, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657 Japan
| | - Naoko Crofts
- Laboratory of Plant Physiology, Department of Biological Production, Akita Prefectural University, 241-438 Kaidobata-Nishi, Shimoshinjo-nakano, Akita, 010-0195 Japan
| | - Satoko Miura
- Laboratory of Plant Physiology, Department of Biological Production, Akita Prefectural University, 241-438 Kaidobata-Nishi, Shimoshinjo-nakano, Akita, 010-0195 Japan
| | - Ken-Ichi Ikeda
- Laboratory of Stress Cytology, Graduate School of Agricultural Science, Kobe University, 1-1 Rokkoudai-chou, Nada-ku, Kobe, Hyogo, 657-8501 Japan
| | - Naohiro Aoki
- Laboratory of Crop Science, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657 Japan
| | - Hiroshi Fukayama
- Laboratory of Tropical Crop Science, Graduate School of Agricultural Science, Kobe University, 1-1 Rokkoudai-chou, Nada-ku, Kobe, Hyogo, 657-8501 Japan
| | - Naoko Fujita
- Laboratory of Plant Physiology, Department of Biological Production, Akita Prefectural University, 241-438 Kaidobata-Nishi, Shimoshinjo-nakano, Akita, 010-0195 Japan
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Sossa CLG, Sanogo S, Naab JB, Sintondji LO. Trends and research features on greenhouse gas emissions from rice production: review based on bibliometric analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:73828-73841. [PMID: 36103066 DOI: 10.1007/s11356-022-22921-0] [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: 03/15/2022] [Accepted: 09/03/2022] [Indexed: 06/15/2023]
Abstract
Greenhouse gas from rice production has become a great concern and the focus of a lot of research in recent years. The main aim of the study was to explore the research trend of GHG emissions from rice production by exploring the research hotspots and providing suggestions for future research directions over the period 1991 to 2020. A bibliometric analysis was conducted using the Scopus database, and the sample included 2535 articles. The methodology was based on descriptive analysis, co-occurrence analysis, factorial analysis, word dynamic over time, and the author's keyword analysis over time. The results indicate a remarkable increase in the number of articles published on this topic, mainly in the journals of "Agriculture," "Ecosystems," and "Environment." The main authors were Conrad R. and Wassmann R. Relating to the number of published articles, very few were contributed by African countries, whereas China, Japan, and India were the main contributors. The co-occurrence analysis showed that rice, methane, and nitrous oxide are the core keywords of the network. The multiple factorial analysis pointed out that greenhouse gas emissions from rice production depend on the farming practices, the environmental factors, and the plant growth as well. The evolutionary path showed that the current author's keywords are more related to global warming potential, climate change, and biochar. The findings of this review can help researchers and scholars by providing a better overview of development trends that have emerged over the past 30 years and suggestions for the future direction in this field.
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Affiliation(s)
- Coffi Leonce Geoffroy Sossa
- West African Science Service Centre on Climate Change and Adapted Land Use (WASCAL) - Graduate Research Program on Climate Change and Agriculture, Université des Sciences, des Techniques et des Technologies de Bamako (USTTB), BP E 423, Bamako, Mali.
- Laboratoire d'Hydraulique et de Maîtrise de l'Eau (LHME), Institut National de l'Eau (INE/UAC), Université d'Abomey-Calavi, 01 BP 526, Abomey-Calavi, Benin.
| | - Souleymane Sanogo
- Faculté des Sciences et Techniques (FST), Université des Sciences, des Techniques et des Technologies de Bamako (USTTB), BP E 423, Bamako, Mali
| | - Jesse B Naab
- West African Science Service Centre on Climate Change and Adapted Land Use (WASCAL), Competence Center, 06 BP 9507 06, Ouagadougou, Burkina Faso
| | - Luc O Sintondji
- Laboratoire d'Hydraulique et de Maîtrise de l'Eau (LHME), Institut National de l'Eau (INE/UAC), Université d'Abomey-Calavi, 01 BP 526, Abomey-Calavi, Benin
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Liu Z, Liu JL, An L, Wu T, Yang L, Cheng YS, Nie XS, Qin ZQ. Genome-wide analysis of the CCT gene family in Chinese white pear (Pyrus bretschneideri Rehd.) and characterization of PbPRR2 in response to varying light signals. BMC PLANT BIOLOGY 2022; 22:81. [PMID: 35196984 PMCID: PMC8864873 DOI: 10.1186/s12870-022-03476-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Canopy architecture is critical in determining the light environment and subsequently the photosynthetic productivity of fruit crops. Numerous CCT domain-containing genes are crucial for plant adaptive responses to diverse environmental cues. Two CCT genes, the orthologues of AtPRR5 in pear, have been reported to be strongly correlated with photosynthetic performance under distinct canopy microclimates. However, knowledge concerning the specific expression patterns and roles of pear CCT family genes (PbCCTs) remains very limited. The key roles played by PbCCTs in the light response led us to examine this large gene family in more detail. RESULTS Genome-wide sequence analysis identified 42 putative PbCCTs in the genome of pear (Pyrus bretschneideri Rehd.). Phylogenetic analysis indicated that these genes were divided into five subfamilies, namely, COL (14 members), PRR (8 members), ZIM (6 members), TCR1 (6 members) and ASML2 (8 members). Analysis of exon-intron structures and conserved domains provided support for the classification. Genome duplication analysis indicated that whole-genome duplication/segmental duplication events played a crucial role in the expansion of the CCT family in pear and that the CCT family evolved under the effect of purifying selection. Expression profiles exhibited diverse expression patterns of PbCCTs in various tissues and in response to varying light signals. Additionally, transient overexpression of PbPRR2 in tobacco leaves resulted in inhibition of photosynthetic performance, suggesting its possible involvement in the repression of photosynthesis. CONCLUSIONS This study provides a comprehensive analysis of the CCT gene family in pear and will facilitate further functional investigations of PbCCTs to uncover their biological roles in the light response.
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Affiliation(s)
- Zheng Liu
- Research Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan, 430064 China
| | - Jia-Li Liu
- College of Life Sciences, Wuhan University, Wuhan, 430072 China
| | - Lin An
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan, 430070 China
| | - Tao Wu
- Research Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan, 430064 China
| | - Li Yang
- Research Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan, 430064 China
| | - Yin-Sheng Cheng
- Research Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan, 430064 China
| | - Xian-Shuang Nie
- Research Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan, 430064 China
| | - Zhong-Qi Qin
- Research Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan, 430064 China
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Fukayama H, Miyagawa F, Shibatani N, Koudou A, Sasayama D, Hatanaka T, Azuma T, Yamauchi Y, Matsuoka D, Morita R. CO 2 -responsive CCT protein interacts with 14-3-3 proteins and controls the expression of starch synthesis-related genes. PLANT, CELL & ENVIRONMENT 2021; 44:2480-2493. [PMID: 33989431 DOI: 10.1111/pce.14084] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 04/25/2021] [Accepted: 05/02/2021] [Indexed: 06/12/2023]
Abstract
CO2 -responsive CCT protein (CRCT) is a positive regulator of starch synthesis-related genes such as ADP-glucose pyrophosphorylase large subunit 1 and starch branching enzyme I particularly in the leaf sheath of rice (Oryza sativa L.). The promoter GUS analysis revealed that CRCT expressed exclusively in the vascular bundle, whereas starch synthesis-related genes were expressed in different sites such as mesophyll cell and starch storage parenchyma cell. However, the chromatin immunoprecipitation (ChIP) using a FLAG-CRCT overexpression line and subsequent qPCR analyses showed that the 5'-flanking regions of these starch synthesis-related genes tended to be enriched by ChIP, suggesting that CRCT can bind to the promoter regions of these genes. The monomer of CRCT is 34.2 kDa; however, CRCT was detected at 270 kDa via gel filtration chromatography, suggesting that CRCT forms a complex in vivo. Immunoprecipitation and subsequent MS analysis pulled down several 14-3-3-like proteins. A yeast two-hybrid analysis and bimolecular fluorescence complementation assays confirmed the interaction between CRCT and 14-3-3-like proteins. Although there is an inconsistency in the place of expression, this study provides important findings regarding the molecular function of CRCT to control the expression of key starch synthesis-related genes.
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Affiliation(s)
- Hiroshi Fukayama
- Laboratory of Tropical Plant Science, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Fumihiro Miyagawa
- Laboratory of Tropical Plant Science, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Naoki Shibatani
- Laboratory of Tropical Plant Science, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Aiko Koudou
- Laboratory of Tropical Plant Science, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Daisuke Sasayama
- Laboratory of Crop Science, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Tomoko Hatanaka
- Laboratory of Crop Science, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Tetsushi Azuma
- Laboratory of Tropical Plant Science, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Yasuo Yamauchi
- Laboratory of Functional Phytochemistry, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | | | - Ryutaro Morita
- Laboratory of Tropical Plant Science, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
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Liu H, Zhou X, Li Q, Wang L, Xing Y. CCT domain-containing genes in cereal crops: flowering time and beyond. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:1385-1396. [PMID: 32006055 DOI: 10.1007/s00122-020-03554-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 01/23/2020] [Indexed: 05/04/2023]
Abstract
The review summarizes the functions of the plant special transcription factors CCT family genes in multiple traits and discusses the molecular breeding strategies with CCT family genes in the future. Plants integrate circadian clock and external signals such as temperature and photoperiod to synchronize flowering with seasonal environmental changes. This process makes cereal crops including short-day crops, such as rice and maize, and long-day crops, such as wheat and barley, better adapt to varied growth zones from temperate to tropical regions. CCT family genes involve circadian clock and photoperiodic flowering pathways and help plants set a suitable flowering time to produce offspring. Beyond the flowering time, CCT family genes in cereal crops are associated with biomass and grain yield. Moreover, recent studies showed that they also associate with photosynthesis, nutrition use efficiency and stress tolerance. Here, we systematically review the progress in functional characterization of CCT family genes in flowering, geographical adaptation and grain yield formation, raise the core questions related to their molecular mechanisms and discuss how to practice them in genetic improvement in cereal crops by combining gene diagnosis and top-level design.
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Affiliation(s)
- Haiyang Liu
- College of Agriculture, Yangtze University, Jingzhou, 434000, China
| | - Xiangchun Zhou
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agriculture University, Wuhan, 430070, China
| | - Qiuping Li
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agriculture University, Wuhan, 430070, China
| | - Lei Wang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agriculture University, Wuhan, 430070, China
| | - Yongzhong Xing
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agriculture University, Wuhan, 430070, China.
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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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Zhang X, Zhou J, Huang N, Mo L, Lv M, Gao Y, Chen C, Yin S, Ju J, Dong G, Zhou Y, Yang Z, Li A, Wang Y, Huang J, Yao Y. Transcriptomic and Co-Expression Network Profiling of Shoot Apical Meristem Reveal Contrasting Response to Nitrogen Rate between Indica and Japonica Rice Subspecies. Int J Mol Sci 2019; 20:E5922. [PMID: 31775351 PMCID: PMC6928681 DOI: 10.3390/ijms20235922] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 11/22/2019] [Accepted: 11/23/2019] [Indexed: 12/17/2022] Open
Abstract
Reducing nitrogen (N) input is a key measure to achieve a sustainable rice production in China, especially in Jiangsu Province. Tiller is the basis for achieving panicle number that plays as a major factor in the yield determination. In actual production, excessive N is often applied in order to produce enough tillers in the early stages. Understanding how N regulates tillering in rice plants is critical to generate an integrative management to reduce N use and reaching tiller number target. Aiming at this objective, we utilized RNA sequencing and weighted gene co-expression network analysis (WGCNA) to compare the transcriptomes surrounding the shoot apical meristem of indica (Yangdao6, YD6) and japonica (Nipponbare, NPB) rice subspecies. Our results showed that N rate influenced tiller number in a different pattern between the two varieties, with NPB being more sensitive to N enrichment, and YD6 being more tolerant to high N rate. Tiller number was positively related to N content in leaf, culm and root tissue, but negatively related to the soluble carbohydrate content, regardless of variety. Transcriptomic comparisons revealed that for YD6 when N rate enrichment from low (LN) to medium (MN), it caused 115 DEGs (LN vs. MN), from MN to high level (HN) triggered 162 DEGs (MN vs. HN), but direct comparison of low with high N rate showed a 511 DEGs (LN vs. HN). These numbers of DEG in NPB were 87 (LN vs. MN), 40 (MN vs. HN), and 148 (LN vs. HN). These differences indicate that continual N enrichment led to a bumpy change at the transcription level. For the reported sixty-five genes which affect tillering, thirty-six showed decent expression in SAM at tiller starting phase, among them only nineteen being significantly influenced by N level, and two genes showed significant interaction between N rate and variety. Gene ontology analysis revealed that the majority of the common DEGs are involved in general stress responses, stimulus responses, and hormonal signaling process. WGCNA network identified twenty-two co-expressing gene modules and ten candidate hubgenes for each module. Several genes associated with tillering and N rate fall on the related modules. These indicate that there are more genes participating in tillering regulation in response to N enrichment.
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Affiliation(s)
- Xiaoxiang Zhang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China; (X.Z.); (J.Z.); (L.M.); (M.L.); (Y.G.); (S.Y.); (G.D.); (Y.Z.); (Z.Y.); (Y.W.)
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou 225007, China; (N.H.); (A.L.)
| | - Juan Zhou
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China; (X.Z.); (J.Z.); (L.M.); (M.L.); (Y.G.); (S.Y.); (G.D.); (Y.Z.); (Z.Y.); (Y.W.)
| | - Niansheng Huang
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou 225007, China; (N.H.); (A.L.)
| | - Lanjing Mo
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China; (X.Z.); (J.Z.); (L.M.); (M.L.); (Y.G.); (S.Y.); (G.D.); (Y.Z.); (Z.Y.); (Y.W.)
| | - Minjia Lv
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China; (X.Z.); (J.Z.); (L.M.); (M.L.); (Y.G.); (S.Y.); (G.D.); (Y.Z.); (Z.Y.); (Y.W.)
| | - Yingbo Gao
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China; (X.Z.); (J.Z.); (L.M.); (M.L.); (Y.G.); (S.Y.); (G.D.); (Y.Z.); (Z.Y.); (Y.W.)
| | - Chen Chen
- Zhenjiang Agricultural Research Institute of Jiangsu Province, Jurong 212400, China;
| | - Shuangyi Yin
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China; (X.Z.); (J.Z.); (L.M.); (M.L.); (Y.G.); (S.Y.); (G.D.); (Y.Z.); (Z.Y.); (Y.W.)
| | - Jing Ju
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225000, China;
| | - Guichun Dong
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China; (X.Z.); (J.Z.); (L.M.); (M.L.); (Y.G.); (S.Y.); (G.D.); (Y.Z.); (Z.Y.); (Y.W.)
| | - Yong Zhou
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China; (X.Z.); (J.Z.); (L.M.); (M.L.); (Y.G.); (S.Y.); (G.D.); (Y.Z.); (Z.Y.); (Y.W.)
| | - Zefeng Yang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China; (X.Z.); (J.Z.); (L.M.); (M.L.); (Y.G.); (S.Y.); (G.D.); (Y.Z.); (Z.Y.); (Y.W.)
| | - Aihong Li
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou 225007, China; (N.H.); (A.L.)
| | - Yulong Wang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China; (X.Z.); (J.Z.); (L.M.); (M.L.); (Y.G.); (S.Y.); (G.D.); (Y.Z.); (Z.Y.); (Y.W.)
| | - Jianye Huang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China; (X.Z.); (J.Z.); (L.M.); (M.L.); (Y.G.); (S.Y.); (G.D.); (Y.Z.); (Z.Y.); (Y.W.)
| | - Youli Yao
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China; (X.Z.); (J.Z.); (L.M.); (M.L.); (Y.G.); (S.Y.); (G.D.); (Y.Z.); (Z.Y.); (Y.W.)
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9
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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: 27] [Impact Index Per Article: 5.4] [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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10
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Morita R, Crofts N, Shibatani N, Miura S, Hosaka Y, Oitome NF, Ikeda KI, Fujita N, Fukayama H. CO2-Responsive CCT Protein Stimulates the Ectopic Expression of Particular Starch Biosynthesis-Related Enzymes, Which Markedly Change the Structure of Starch in the Leaf Sheaths of Rice. PLANT & CELL PHYSIOLOGY 2019; 60:961-972. [PMID: 30690625 DOI: 10.1093/pcp/pcz008] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 01/08/2019] [Indexed: 06/09/2023]
Abstract
CO2-responsive CCT protein (CRCT) is suggested to be a positive regulator of starch biosynthesis in the leaf sheaths of rice, regulating the expression levels of starch biosynthesis-related genes. In this study, the effects of CRCT expression levels on the expression of starch biosynthesis-related enzymes and the quality of starch were studied. Using native-PAGE/activity staining and immunoblotting, we found that the protein levels of starch synthase I, branching enzyme I, branching enzyme IIa, isoamylase 1 and phosphorylase 1 were largely correlated with the CRCT expression levels in the leaf sheaths of CRCT transgenic lines. In contrast, the CRCT expression levels largely did not affect the expression levels and/or activities of starch biosynthesis-related enzymes in the leaf blades and endosperm tissues. The analysis of the chain-length distribution of starch in the leaf sheaths showed that short chains with a degree of polymerization from 5 to 14 were increased in the overexpression lines but decreased in the knockdown lines. The amylose content of starch in the leaf sheath was greatly increased in the overexpression lines. In contrast, the molecular weight of the amylopectin of starch in the leaf sheath of overexpression lines did not change compared with those of the non-transgenic rice. These results suggest that CRCT can control the quality and the quantity of starch in the leaf sheath by regulating the expression of particular starch biosynthesis-related enzymes.
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Affiliation(s)
- Ryutaro Morita
- Laboratory of Tropical Crop Science, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
- Research Fellow of the Japan Society for the Promotion of Science, Tokyo, Japan
| | - Naoko Crofts
- Department of Biological Production, Akita Prefecture University, Akita, Japan
| | - Naoki Shibatani
- Laboratory of Tropical Crop Science, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Satoko Miura
- Department of Biological Production, Akita Prefecture University, Akita, Japan
| | - Yuko Hosaka
- Department of Biological Production, Akita Prefecture University, Akita, Japan
| | - Naoko F Oitome
- Department of Biological Production, Akita Prefecture University, Akita, Japan
| | - Ken-Ichi Ikeda
- Laboratory of Stress Cytology, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Naoko Fujita
- Department of Biological Production, Akita Prefecture University, Akita, Japan
| | - Hiroshi Fukayama
- Laboratory of Tropical Crop Science, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
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