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Xi Y, Cai J, Li G, Huang H, Peng X, Zhu G. High CO 2 facilitates fatty acid biosynthesis and mitigates cellular oxidative stress caused by CAC2 dysfunction in Arabidopsis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 115:1316-1330. [PMID: 37235700 DOI: 10.1111/tpj.16321] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 05/09/2023] [Accepted: 05/23/2023] [Indexed: 05/28/2023]
Abstract
Increasing concentration of CO2 has significant impacts on many biological processes in plants, and its impact is closely associated with changes in the ratio of photosynthesis to photorespiration. Studies have reported that high CO2 can promote carbon fixing and alleviate plant oxidative damage in response to environmental stresses. However, the effect of high CO2 on fatty acid (FA) metabolism and cellular redox balance in FA-deficient plants is rarely reported. In this study, we identified a high-CO2 -requiring mutant cac2 through forward genetic screening. CAC2 encodes biotin carboxylase, which is one of the subunits of plastid acetyl-CoA carboxylase and participates in de novo FA biosynthesis. Null mutation of CAC2 is embryonic lethal. A point mutation of CAC2 in cac2 mutants produces severe defects in chloroplast development, plant growth and photosynthetic performance. These morphological and physiological defects were largely absent under high CO2 conditions. Metabolite analyses showed that FA contents in cac2-1 leaves were decreased, while photorespiratory metabolites, such as glycine and glycolate, did not significantly change. Meanwhile, cac2 exhibited higher reactive oxygen species (ROS) levels and mRNA expression of stress-responsive genes than the wild-type, indicating that cac2 plants may suffer oxidative stress under ambient CO2 conditions. Elevated CO2 significantly increased FA contents, especially C18:3-FA, and reduced ROS accumulation in cac2-1 leaves. We propose that stress mitigation by high CO2 in cac2 could be due to increased FA levels by promoting carbon assimilation, and the prevention of over-reduction due to decreased photorespiration.
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Affiliation(s)
- Yue Xi
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Jiajia Cai
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Ganting Li
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Haijian Huang
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Xinxiang Peng
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Guohui Zhu
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, Guangzhou, China
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Bauwe H. Photorespiration - Rubisco's repair crew. JOURNAL OF PLANT PHYSIOLOGY 2023; 280:153899. [PMID: 36566670 DOI: 10.1016/j.jplph.2022.153899] [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: 11/15/2022] [Revised: 12/11/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
The photorespiratory repair pathway (photorespiration in short) was set up from ancient metabolic modules about three billion years ago in cyanobacteria, the later ancestors of chloroplasts. These prokaryotes developed the capacity for oxygenic photosynthesis, i.e. the use of water as a source of electrons and protons (with O2 as a by-product) for the sunlight-driven synthesis of ATP and NADPH for CO2 fixation in the Calvin cycle. However, the CO2-binding enzyme, ribulose 1,5-bisphosphate carboxylase (known under the acronym Rubisco), is not absolutely selective for CO2 and can also use O2 in a side reaction. It then produces 2-phosphoglycolate (2PG), the accumulation of which would inhibit and potentially stop the Calvin cycle and subsequently photosynthetic electron transport. Photorespiration removes the 2-PG and in this way prevents oxygenic photosynthesis from poisoning itself. In plants, the core of photorespiration consists of ten enzymes distributed over three different types of organelles, requiring interorganellar transport and interaction with several auxiliary enzymes. It goes together with the release and to some extent loss of freshly fixed CO2. This disadvantageous feature can be suppressed by CO2-concentrating mechanisms, such as those that evolved in C4 plants thirty million years ago, which enhance CO2 fixation and reduce 2PG synthesis. Photorespiration itself provided a pioneer variant of such mechanisms in the predecessors of C4 plants, C3-C4 intermediate plants. This article is a review and update particularly on the enzyme components of plant photorespiration and their catalytic mechanisms, on the interaction of photorespiration with other metabolism and on its impact on the evolution of photosynthesis. This focus was chosen because a better knowledge of the enzymes involved and how they are embedded in overall plant metabolism can facilitate the targeted use of the now highly advanced methods of metabolic network modelling and flux analysis. Understanding photorespiration more than before as a process that enables, rather than reduces, plant photosynthesis, will help develop rational strategies for crop improvement.
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Affiliation(s)
- Hermann Bauwe
- University of Rostock, Plant Physiology, Albert-Einstein-Straße 3, D-18051, Rostock, Germany.
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3
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Schad A, Rössler S, Nagel R, Wagner H, Wilhelm C. Crossing and selection of Chlamydomonas reinhardtii strains for biotechnological glycolate production. Appl Microbiol Biotechnol 2022; 106:3539-3554. [PMID: 35511277 PMCID: PMC9151519 DOI: 10.1007/s00253-022-11933-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 04/13/2022] [Accepted: 04/20/2022] [Indexed: 11/27/2022]
Abstract
Abstract As an alternative to chemical building blocks derived from algal biomass, the excretion of glycolate has been proposed. This process has been observed in green algae such as Chlamydomonas reinhardtii as a product of the photorespiratory pathway. Photorespiration generally occurs at low CO2 and high O2 concentrations, through the key enzyme RubisCO initiating the pathway via oxygenation of 1.5-ribulose-bisphosphate. In wild-type strains, photorespiration is usually suppressed in favour of carboxylation due to the cellular carbon concentrating mechanisms (CCMs) controlling the internal CO2 concentration. Additionally, newly produced glycolate is directly metabolized in the C2 cycle. Therefore, both the CCMs and the C2 cycle are the key elements which limit the glycolate production in wild-type cells. Using conventional crossing techniques, we have developed Chlamydomonas reinhardtii double mutants deficient in these two key pathways to direct carbon flux to glycolate excretion. Under aeration with ambient air, the double mutant D6 showed a significant and stable glycolate production when compared to the non-producing wild type. Interestingly, this mutant can act as a carbon sink by fixing atmospheric CO2 into glycolate without requiring any additional CO2 supply. Thus, the double-mutant strain D6 can be used as a photocatalyst to produce chemical building blocks and as a future platform for algal-based biotechnology. Key Points • Chlamydomonas reinhardtii cia5 gyd double mutants were developed by sexual crossing • The double mutation eliminates the need for an inhibitor in glycolate production • The strain D6 produces significant amounts of glycolate with ambient air only Supplementary Information The online version contains supplementary material available at 10.1007/s00253-022-11933-y.
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Affiliation(s)
- Antonia Schad
- Department of Algal Biotechnology, Faculty of Life Science, University of Leipzig, Permoserstraße 15, D-04318, Leipzig, Germany
| | - Sonja Rössler
- Department of Algal Biotechnology, Faculty of Life Science, University of Leipzig, Permoserstraße 15, D-04318, Leipzig, Germany
| | - Raimund Nagel
- Department of Plant Physiology, Faculty of Life Science, University of Leipzig, Johannisallee 21-23, D-04103, Leipzig, Germany
| | - Heiko Wagner
- Department of Algal Biotechnology, Faculty of Life Science, University of Leipzig, Permoserstraße 15, D-04318, Leipzig, Germany
| | - Christian Wilhelm
- Department of Algal Biotechnology, Faculty of Life Science, University of Leipzig, Permoserstraße 15, D-04318, Leipzig, Germany.
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Liu K, Wang X, Liu H, Wu J, Liang F, Li S, Zhang J, Peng X. OsAT1, an anion transporter, negatively regulates grain size and yield in rice. PHYSIOLOGIA PLANTARUM 2022; 174:e13692. [PMID: 35482934 DOI: 10.1111/ppl.13692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/22/2022] [Accepted: 04/22/2022] [Indexed: 06/14/2023]
Abstract
Improving the grain yield of rice is a central goal of basic and applied scientific research. Here, we identified an anion transporter, OsAT1, localized in the endoplasmic reticulum and Golgi. OsAT1 is highly expressed in flag, stem, and sheath as monitored using qRT-PCR and pOsAT1::GUS. Thousand-grain weight, grain weight per plant, and content of starch were significantly increased in OsAT1 knock-down mutants (OsAT1-Ri) but significantly decreased in OsAT1 overexpressed lines (OsAT1-OE). In addition, the grain weight per plant increased by 6.17% to 6.78% in OsAT1-RNAi lines, whereas it decreased by 45.93% to 46.76% in OsAT1-OE lines, compared to wild-type. Moreover, the copper content was noticeably reduced in flag leaf of OsAT1-Ri lines and increased in OsAT1-OE lines. RNA-sequencing analysis of OsAT1-OE lines revealed that the genes related to starch biosynthesis and metabolism pathway were enriched in the down-regulated category. Thus, our results suggest that knock-down of OsAT1 in rice possibly reduces copper accumulation and improves the accumulation of storage starch, hence, increasing the grain size and weight. OsAT1 may be a useful gene to consider for cereal breeding programs.
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Affiliation(s)
- Kun Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Xin Wang
- Key Laboratory of Molecular Biology and Gene Engineering of Jiangxi Province, School of Life Sciences, Nanchang University, Nanchang, China
| | - Hengchen Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Jiarui Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Feng Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Shaobo Li
- Key Laboratory of Molecular Biology and Gene Engineering of Jiangxi Province, School of Life Sciences, Nanchang University, Nanchang, China
| | - Jianjun Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
| | - Xinxiang Peng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- College of Life Sciences, South China Agricultural University, Guangzhou, China
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Transcriptomic analysis of OsRUS1 overexpression rice lines with rapid and dynamic leaf rolling morphology. Sci Rep 2022; 12:6736. [PMID: 35468979 PMCID: PMC9038715 DOI: 10.1038/s41598-022-10784-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 04/13/2022] [Indexed: 01/12/2023] Open
Abstract
Moderate leaf rolling helps to form the ideotype of rice. In this study, six independent OsRUS1-GFP overexpression (OsRUS1-OX) transgenic rice lines with rapid and dynamic leaf rolling phenotype in response to sunlight were constructed. However, the mechanism is unknown. Here, RNA-Seq approach was utilized to identify differentially expressed genes between flag leaves of OsRUS1-OX and wildtype under sunlight. 2920 genes were differentially expressed between OsRUS1-OX and WT, of which 1660 upregulated and 1260 downregulated. Six of the 16 genes in GO: 0009415 (response to water stimulus) were significantly upregulated in OsRUS1-OX. The differentially expressed genes between WT and OsRUS1-OX were assigned to 110 KEGG pathways. 42 of the 222 genes in KEGG pathway dosa04075 (Plant hormone signal transduction) were differentially expressed between WT and OsRUS1-OX. The identified genes in GO:0009415 and KEGG pathway dosa04075 were good candidates to explain the leaf rolling phenotype of OsRUS1-OX. The expression patterns of the 15 genes identified by RNA-Seq were verified by qRT-PCR. Based on transcriptomic and qRT-PCR analysis, a mechanism for the leaf rolling phenotype of OsRUS1-OX was proposed. The differential expression profiles between WT and OsRUS1-OX established by this study provide important insights into the molecular mechanism behind the leaf rolling phenotype of OsRUS1-OX.
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Liu JY, He ZD, Leung DWM, Zeng SS, Cui LL, Peng XX. Molecular, biochemical and enzymatic characterization of photorespiratory 2-phosphoglycolate phosphatase (PGLP1) in rice. PLANT BIOLOGY (STUTTGART, GERMANY) 2022; 24:510-516. [PMID: 35083835 DOI: 10.1111/plb.13389] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 12/19/2021] [Indexed: 06/14/2023]
Abstract
Phosphoglycolate phosphatase (PGLP, EC3.1.3.18) is a key enzyme in photorespiration. However, genes encoding the rice photorespiratory PGLP have not yet been identified or characterized. Here, PGLP for photorespiration in rice was identified and its enzymatic properties were investigated. In order to define the function of PGLP homologs, rice PGLP mutants were constructed using CRISPR/Cas9, the transcriptional expressions were analyzed by RT-qPCR, and subcellular localizations were detected via rice protoplast transient expression analysis. Based on sequence alignment, proteins encoded by genes OsPGLP1, OsPGLP2, and OsPGLP3 in the rice genome were predicted to have PGLP activity. Subsequent experimentation showed that OsPGLP1 and OsPGLP3 are chloroplast proteins, while OsPGLP2 is localized in the cytoplasm. In rice leaves, levels of PGLP1 transcript were substantially higher than those of PGLP2 and PGLP3, whereas in roots, levels of PGLP2 transcript were higher than those of PGLP1 and PGLP3. There was no detectable PGLP activity in leaves of the OsPGLP1 mutant, which was non-viable in ambient air condition (400 ppm CO2 ) and high CO2 (4000 ppm) was unable to restore normal growth. In contrast, mutations of PGLP2 or PGLP3 did not result in visible phenotypes and the leaf PGLP activities were also unaffected It is suggested that PGLP1, encoded by Os04g0490800, is responsible for photorespiration. Furthermore, PGLP1 is a dimer with an apparent molecular mass of ca.65 kDa, and its Km is 272 μM, with a higher broad optimum pH (7.5 to 10.0) for PGLP activity than that in other higher plants.
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Affiliation(s)
- J-Y Liu
- School of Chemistry, Sun Yat-Sen University, Guangzhou, China
| | - Z-D He
- College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - D W M Leung
- School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
| | - S-S Zeng
- College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - L-L Cui
- College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - X-X Peng
- College of Life Sciences, South China Agricultural University, Guangzhou, China
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Osmanoglu Ö, Khaled AlSeiari M, AlKhoori HA, Shams S, Bencurova E, Dandekar T, Naseem M. Topological Analysis of the Carbon-Concentrating CETCH Cycle and a Photorespiratory Bypass Reveals Boosted CO 2-Sequestration by Plants. Front Bioeng Biotechnol 2021; 9:708417. [PMID: 34790651 PMCID: PMC8591258 DOI: 10.3389/fbioe.2021.708417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 08/25/2021] [Indexed: 01/11/2023] Open
Abstract
Synthetically designed alternative photorespiratory pathways increase the biomass of tobacco and rice plants. Likewise, some in planta-tested synthetic carbon-concentrating cycles (CCCs) hold promise to increase plant biomass while diminishing atmospheric carbon dioxide burden. Taking these individual contributions into account, we hypothesize that the integration of bypasses and CCCs will further increase plant productivity. To test this in silico, we reconstructed a metabolic model by integrating photorespiration and photosynthesis with the synthetically designed alternative pathway 3 (AP3) enzymes and transporters. We calculated fluxes of the native plant system and those of AP3 combined with the inhibition of the glycolate/glycerate transporter by using the YANAsquare package. The activity values corresponding to each enzyme in photosynthesis, photorespiration, and for synthetically designed alternative pathways were estimated. Next, we modeled the effect of the crotonyl-CoA/ethylmalonyl-CoA/hydroxybutyryl-CoA cycle (CETCH), which is a set of natural and synthetically designed enzymes that fix CO₂ manifold more than the native Calvin-Benson-Bassham (CBB) cycle. We compared estimated fluxes across various pathways in the native model and under an introduced CETCH cycle. Moreover, we combined CETCH and AP3-w/plgg1RNAi, and calculated the fluxes. We anticipate higher carbon dioxide-harvesting potential in plants with an AP3 bypass and CETCH-AP3 combination. We discuss the in vivo implementation of these strategies for the improvement of C3 plants and in natural high carbon harvesters.
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Affiliation(s)
- Özge Osmanoglu
- Department of Bioinformatics, Functional Genomics and Systems Biology Group, Biocenter, University of Würzburg, Am Hubland, Würzburg, Germany
| | - Mariam Khaled AlSeiari
- College of Natural and Health Sciences, Department of Life and Environmental Sciences, Zayed University, Abu Dhabi, UAE
| | - Hasa Abduljaleel AlKhoori
- College of Natural and Health Sciences, Department of Life and Environmental Sciences, Zayed University, Abu Dhabi, UAE
| | - Shabana Shams
- Department of Animal Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Elena Bencurova
- Department of Bioinformatics, Functional Genomics and Systems Biology Group, Biocenter, University of Würzburg, Am Hubland, Würzburg, Germany
| | - Thomas Dandekar
- Department of Bioinformatics, Functional Genomics and Systems Biology Group, Biocenter, University of Würzburg, Am Hubland, Würzburg, Germany
| | - Muhammad Naseem
- Department of Bioinformatics, Functional Genomics and Systems Biology Group, Biocenter, University of Würzburg, Am Hubland, Würzburg, Germany
- College of Natural and Health Sciences, Department of Life and Environmental Sciences, Zayed University, Abu Dhabi, UAE
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Li X, Liao M, Huang J, Xu Z, Lin Z, Ye N, Zhang Z, Peng X. Glycolate oxidase-dependent H 2O 2 production regulates IAA biosynthesis in rice. BMC PLANT BIOLOGY 2021; 21:326. [PMID: 34229625 PMCID: PMC8261990 DOI: 10.1186/s12870-021-03112-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 06/28/2021] [Indexed: 05/26/2023]
Abstract
BACKGROUND Glycolate oxidase (GLO) is not only a key enzyme in photorespiration but also a major engine for H2O2 production in plants. Catalase (CAT)-dependent H2O2 decomposition has been previously reported to be involved in the regulation of IAA biosynthesis. However, it is still not known which mechanism contributed to the H2O2 production in IAA regulation. RESULTS In this study, we found that in glo mutants of rice, as H2O2 levels decreased IAA contents significantly increased, whereas high CO2 abolished the difference in H2O2 and IAA contents between glo mutants and WT. Further analyses showed that tryptophan (Trp, the precursor for IAA biosynthesis in the Trp-dependent biosynthetic pathway) also accumulated due to increased tryptophan synthetase β (TSB) activity. Moreover, expression of the genes involved in Trp-dependent IAA biosynthesis and IBA to IAA conversion were correspondingly up-regulated, further implicating that both pathways contribute to IAA biosynthesis as mediated by the GLO-dependent production of H2O2. CONCLUSION We investigated the function of GLO in IAA signaling in different levels from transcription, enzyme activities to metabolic levels. The results suggest that GLO-dependent H2O2 signaling, essentially via photorespiration, confers regulation over IAA biosynthesis in rice plants.
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Affiliation(s)
- Xiangyang Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, No.483, Wushan Road, 510642, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, No.483, Wushan Road, Guangzhou, 510642, China
| | - Mengmeng Liao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, No.483, Wushan Road, 510642, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, No.483, Wushan Road, Guangzhou, 510642, China
| | - Jiayu Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, No.483, Wushan Road, 510642, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, No.483, Wushan Road, Guangzhou, 510642, China
| | - Zheng Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, No.483, Wushan Road, 510642, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, No.483, Wushan Road, Guangzhou, 510642, China
| | - Zhanqiao Lin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, No.483, Wushan Road, 510642, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, No.483, Wushan Road, Guangzhou, 510642, China
| | - Nenghui Ye
- College of Agronomy, Hunan Agricultural University, No.1, Nongda Road, Changsha, 410128, China
| | - Zhisheng Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, No.483, Wushan Road, 510642, Guangzhou, China.
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, No.483, Wushan Road, Guangzhou, 510642, China.
| | - Xinxiang Peng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, No.483, Wushan Road, 510642, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, No.483, Wushan Road, Guangzhou, 510642, China
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