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Siriwong S, Tanthanuch W, Srisamut D, Chantarakhon C, Kamkajon K, Thumanu K. Performance Evaluation of Focal Plane Array (FPA)-FTIR and Synchrotron Radiation (SR)-FTIR Microspectroscopy to Classify Rice Components. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2022; 28:1-10. [PMID: 36062386 DOI: 10.1017/s1431927622012454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The development of biochemical analysis techniques to study heterogeneous biological samples is increasing. These techniques include synchrotron radiation Fourier transform infrared (SR-FTIR) microspectroscopy. This method has been applied to analyze biological tissue with multivariate statistical analysis to classify the components revealed by the spectral data. This study aims to compare the efficiencies of SR-FTIR microspectroscopy and focal plane array (FPA)-FTIR microspectroscopy when classifying rice tissue components. Spectral data were acquired for mapping the same sample areas from both techniques. Principal component analysis and cluster imaging were used to investigate the biochemical variations of the tissue types. The classification was based on the functional groups of pectin, protein, and polysaccharide. Four layers from SR-FTIR microspectroscopy including pericarp, aleurone layer, sub-aleurone layer, and endosperm were classified using cluster imaging, while FPA-FTIR microspectroscopy could classify only three layers of pericarp, aleurone layer, and endosperm. Moreover, SR-FTIR microspectroscopy increased the image contrast of the biochemical distribution in rice tissue more efficiently than FPA-FTIR microspectroscopy. We have demonstrated the capability of the high-resolution synchrotron technique and its ability to clarify small structures in rice tissue. The use of this technique might increase in future studies of tissue characterization.
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Affiliation(s)
- Supatcharee Siriwong
- Research Facility Department, Synchrotron Light Research Institute (Public Organization), Mueang District, Nakhon Ratchasima, 30000, Thailand
| | - Waraporn Tanthanuch
- Research Facility Department, Synchrotron Light Research Institute (Public Organization), Mueang District, Nakhon Ratchasima, 30000, Thailand
| | - Duangjai Srisamut
- Research Facility Department, Synchrotron Light Research Institute (Public Organization), Mueang District, Nakhon Ratchasima, 30000, Thailand
| | - Chulalak Chantarakhon
- Research Facility Department, Synchrotron Light Research Institute (Public Organization), Mueang District, Nakhon Ratchasima, 30000, Thailand
| | - Kanokwan Kamkajon
- Center of Calcium and Bone Research (COCAB), Department of Physiology, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Kanjana Thumanu
- Research Facility Department, Synchrotron Light Research Institute (Public Organization), Mueang District, Nakhon Ratchasima, 30000, Thailand
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Sun L, Deng R, Liu J, Lai M, Wu J, Liu X, Shahid MQ. An overview of sucrose transporter (SUT) genes family in rice. Mol Biol Rep 2022; 49:5685-5695. [PMID: 35699859 DOI: 10.1007/s11033-022-07611-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 05/17/2022] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Photosynthesis provides the energy basis for the life activities of plants by producing organic compounds, mainly sugar. As the main energy form of photosynthesis, sugar affects the growth and development of plants. During long-distance transportation, sucrose is the main form of transportation. The rate of sugar transport and the allocation of carbohydrates affect the biomass of crops and are closely related to the reproductive growth of crops. MAIN TEXT The transportation of sugar is divided into active transportation and passive transportation. So how does the sucrose transporters (SUT) genes, which are the main carriers of sucrose in active transportation, affect the performance of rice agronomic traits is still to be explored. In this article, we describe the structure of inflorescence and review the transport forms and metabolic processes of sucrose in rice, such as how CO2 is fixed, carbohydrate assimilation, and transport of organic matter. Sucrose transporters exhibited remarkable effects on the development of reproductive organs in rice. CONCLUSIONS Here, the effects of different factors, such as the effects of anthers morphology on starch enrichment of pollen, effects of biotic and abiotic factors on sucrose transporters, effects of changes in trace elements on sucrose transporters, were discussed. Moreover, the regulation of transcription or translation level provides ideas for future research on sucrose transporters.
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Affiliation(s)
- Lixia Sun
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China.,Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China.,Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642, China.,College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Ruilian Deng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China.,Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China.,Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642, China.,College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Jingwen Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China.,Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China.,Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642, China.,College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Mingyu Lai
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China.,Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China.,Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642, China.,College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Jinwen Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China.,Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China.,Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642, China.,College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Xiangdong Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China.,Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China.,Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642, China.,College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Muhammad Qasim Shahid
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China. .,Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China. .,Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642, China. .,College of Agriculture, South China Agricultural University, Guangzhou, 510642, China.
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3
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Ishimaru T, Parween S, Saito Y, Masumura T, Kondo M, Sreenivasulu N. Laser microdissection transcriptome data derived gene regulatory networks of developing rice endosperm revealed tissue- and stage-specific regulators modulating starch metabolism. PLANT MOLECULAR BIOLOGY 2022; 108:443-467. [PMID: 35098404 PMCID: PMC8894313 DOI: 10.1007/s11103-021-01225-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 11/19/2021] [Indexed: 06/14/2023]
Abstract
Laser microdissection applied on the developing rice endosperm revealed tissue- and stage-specific regulators modulating programmed cell death and desiccation tolerance mechanisms in the central starchy endosperm following starch metabolism. Rice (Oryza sativa L.) filial seed tissues are heterozygous in its function, which accumulate distinct storage compounds spatially in starchy endosperm and aleurone. In this study, we identified the 18 tissue- and stage-specific gene co-regulons in the developing endosperm by isolating four fine tissues dorsal aleurone layer (AL), central starchy endosperm (CSE), dorsal starchy endosperm (DSE), and lateral starchy endosperm (LSE) at two developmental stages (7 days after flowering, DAF and 12DAF) using laser microdissection (LM) coupled with gene expression analysis of a 44 K microarray. The derived co-expression regulatory networks depict that distinct set of starch biosynthesis genes expressed preferentially at first in CSE at 7 DAF and extend its spatial expression to LSE and DSE by 12 DAF. Interestingly, along with the peak of starch metabolism we noticed accumulation of transcripts related to phospholipid and glycolipid metabolism in CSE during 12 DAF. The spatial distribution of starch accumulation in distinct zones of starchy endosperm contains specific transcriptional factors and hormonal-regulated genes. Genes related to programmed cell death (PCD) were specifically expressed in CSE at 12DAF, when starch accumulation was already completed in that tissue. The aleurone layer present in the outermost endosperm accumulates transcripts of lipid, tricarboxylic acid metabolism, several transporters, while starch metabolism and PCD is not pronounced. These regulatory cascades are likely to play a critical role in determining the positional fate of cells and offer novel insights into the molecular physiological mechanisms of endosperm development from early to middle storage phase.
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Affiliation(s)
- Tsutomu Ishimaru
- NARO Institute of Crop Science, NARO, 2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518 Japan
- Hokuriku Research Station, Central Region Agricultural Research Center, National Agriculture and Food Research Organization (CARC/NARO), 1-2-1 Inada, Joetsu, Niigata 941-0193 Japan
| | - Sabiha Parween
- International Rice Research Institute (IRRI), DAPO Box 7777, Metro Manila, The Philippines
| | - Yuhi Saito
- Graduate School of Life and Environmental Science, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto, 606-8522 Japan
| | - Takehiro Masumura
- Graduate School of Life and Environmental Science, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto, 606-8522 Japan
| | - Motohiko Kondo
- NARO Institute of Crop Science, NARO, 2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518 Japan
- Graduate School of Bioagricultural Sciences, Nagoya University, Furo, Chikusa, Nagoya, 464-8601 Japan
| | - Nese Sreenivasulu
- International Rice Research Institute (IRRI), DAPO Box 7777, Metro Manila, The Philippines
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Wakabayashi Y, Morita R, Aoki N. Metabolic factors restricting sink strength in superior and inferior spikelets in high-yielding rice cultivars. JOURNAL OF PLANT PHYSIOLOGY 2021; 266:153536. [PMID: 34619558 DOI: 10.1016/j.jplph.2021.153536] [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: 06/28/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 06/13/2023]
Abstract
Many high-yielding rice cultivars with large sink size (total number of spikelet per unit area × mean grain weight) have been developed, but some japonica cultivars developed in Japan often fail to attain the expected high yield due to low sink strength of spikelets. Although there is natural variation in sink strength of spikelets among high-yielding cultivars, metabolic factors involved in the natural variation and relationships of sink strength in spikelets with final percentage of filled spikelets are not fully understood. In the present study, we examined cultivar differences in sink strength for superior and inferior spikelets (i.e. earlier fertilizing spikelets with faster growth and later fertilizing ones with slower growth, respectively) in a panicle, using each spikelet at 10 d after the onset of development (10 DAD) when starch accumulation in endosperm was actively proceeding. Nine high-yielding cultivars were used: five japonica-dominant and four indica-dominant cultivars. Cultivar differences were observed in starch contents at 10 DAD in each spikelet type, and indica cultivars had higher starch contents than japonica cultivars in both superior and inferior spikelets. In addition, starch contents at 10 DAD were closely related to percentage of filled grains at maturity in both spikelet types. The activities of sucrose synthase (SUS) and uridine diphosphoglucose pyrophosphorylase (UGP), and the protein levels of phosphorylase 1 (Pho1), were higher in indica than japonica cultivars, and were positively correlated with starch contents at 10 DAD for both superior and inferior spikelets; although metabolic states, revealed from relations between intermediate metabolites and starch contents, differed among spikelet types. Consequently, it was considered that SUS and UGP at the step from sucrose cleavage to adenosine diphosphoglucose synthesis, and Pho1 at the starch biosynthesis step, were key metabolic factors involved in cultivar differences of sink strength (ability to synthesize starch).
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Affiliation(s)
- Yu Wakabayashi
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Ryutaro Morita
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Naohiro Aoki
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.
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Hu Z, Tang Z, Zhang Y, Niu L, Yang F, Zhang D, Hu Y. Rice SUT and SWEET Transporters. Int J Mol Sci 2021; 22:11198. [PMID: 34681858 PMCID: PMC8540626 DOI: 10.3390/ijms222011198] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 11/17/2022] Open
Abstract
Sugar transporters play important or even indispensable roles in sugar translocation among adjacent cells in the plant. They are mainly composed of sucrose-proton symporter SUT family members and SWEET family members. In rice, 5 and 21 members are identified in these transporter families, and some of their physiological functions have been characterized on the basis of gene knockout or knockdown strategies. Existing evidence shows that most SUT members play indispensable roles, while many SWEET members are seemingly not so critical in plant growth and development regarding whether their mutants display an aberrant phenotype or not. Generally, the expressions of SUT and SWEET genes focus on the leaf, stem, and grain that represent the source, transport, and sink organs where carbohydrate production, allocation, and storage take place. Rice SUT and SWEET also play roles in both biotic and abiotic stress responses in addition to plant growth and development. At present, these sugar transporter gene regulation mechanisms are largely unclear. In this review, we compare the expressional profiles of these sugar transporter genes on the basis of chip data and elaborate their research advances. Some suggestions concerning future investigation are also proposed.
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Affiliation(s)
- Zhi Hu
- College of Resources & Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China; (Z.H.); (Z.T.)
| | - Zhenjia Tang
- College of Resources & Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China; (Z.H.); (Z.T.)
| | - Yanming Zhang
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan 430072, China; (Y.Z.); (L.N.); (F.Y.)
| | - Liping Niu
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan 430072, China; (Y.Z.); (L.N.); (F.Y.)
| | - Fang Yang
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan 430072, China; (Y.Z.); (L.N.); (F.Y.)
| | - Dechun Zhang
- Bio-Technology Research Center, China Three Gorges University, Yichang 443002, China
| | - Yibing Hu
- College of Resources & Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China; (Z.H.); (Z.T.)
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6
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Takafuji Y, Shimizu-Sato S, Ta KN, Suzuki T, Nosaka-Takahashi M, Oiwa T, Kimura W, Katoh H, Fukai M, Takeda S, Sato Y, Hattori T. High-resolution spatiotemporal transcriptome analyses during cellularization of rice endosperm unveil the earliest gene regulation critical for aleurone and starchy endosperm cell fate specification. JOURNAL OF PLANT RESEARCH 2021; 134:1061-1081. [PMID: 34279738 DOI: 10.1007/s10265-021-01329-w] [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: 06/04/2021] [Accepted: 07/05/2021] [Indexed: 06/13/2023]
Abstract
The major tissues of the cereal endosperm are the starchy endosperm (SE) in the inner and the aleurone layer (AL) at the outer periphery. The fates of the cells that comprise these tissues are determined according to positional information; however, our understanding of the underlying molecular mechanisms remains limited. Here, we conducted a high-resolution spatiotemporal analysis of the rice endosperm transcriptome during early cellularization. In rice, endosperm cellularization proceeds in a concentric pattern from a primary alveolus cell layer, such that developmental progression can be defined by the number of cell layers. Using laser-capture microdissection to obtain precise tissue sections, transcriptomic changes were followed through five histologically defined stages of cellularization from the syncytial to 3-cell layer (3 L) stage. In addition, transcriptomes were compared between the inner and the outermost peripheral cell layers. Large differences in the transcriptomes between stages and between the inner and the peripheral cells were found. SE attributes were expressed at the alveolus-cell-layer stage but were preferentially activated in the inner cell layers that resulted from periclinal division of the alveolus cell layer. Similarly, AL attributes started to be expressed only after the 2 L stage and were localized to the outermost peripheral cell layer. These results indicate that the first periclinal division of the alveolus cell layer is asymmetric at the transcriptome level, and that the cell-fate-specifying positional cues and their perception system are already operating before the first periclinal division. Several genes related to epidermal identity (i.e., type IV homeodomain-leucine zipper genes and wax biosynthetic genes) were also found to be expressed at the syncytial stage, but their expression was localized to the outermost peripheral cell layer from the 2 L stage onward. We believe that our findings significantly enhance our knowledge of the mechanisms underlying cell fate specification in rice endosperm.
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Affiliation(s)
- Yoshinori Takafuji
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Sae Shimizu-Sato
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan
| | - Kim Nhung Ta
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan
| | - Toshiya Suzuki
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan
- Department of Genetics, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), 1111 Yata, Mishima, Shizuoka, 411-8540, Japan
| | - Misuzu Nosaka-Takahashi
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan
- Department of Genetics, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), 1111 Yata, Mishima, Shizuoka, 411-8540, Japan
| | - Tetsuro Oiwa
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Wakana Kimura
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Hirokazu Katoh
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Mao Fukai
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Shin Takeda
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan.
| | - Yutaka Sato
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan.
- Department of Genetics, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), 1111 Yata, Mishima, Shizuoka, 411-8540, Japan.
| | - Tsukaho Hattori
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan.
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Li DQ, Wu XB, Wang HF, Feng X, Yan SJ, Wu SY, Liu JX, Yao XF, Bai AN, Zhao H, Song XF, Guo L, Zhang SY, Liu CM. Defective mitochondrial function by mutation in THICK ALEURONE 1 encoding a mitochondrion-targeted single-stranded DNA-binding protein leads to increased aleurone cell layers and improved nutrition in rice. MOLECULAR PLANT 2021; 14:1343-1361. [PMID: 34015460 DOI: 10.1016/j.molp.2021.05.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 03/27/2021] [Accepted: 05/15/2021] [Indexed: 05/09/2023]
Abstract
Cereal endosperm comprises an outer aleurone and an inner starchy endosperm. Although these two tissues have the same developmental origin, they differ in morphology, cell fate, and storage product accumulation, with the mechanism largely unknown. Here, we report the identification and characterization of rice thick aleurone 1 (ta1) mutant that shows an increased number of aleurone cell layers and increased contents of nutritional factors including proteins, lipids, vitamins, dietary fibers, and micronutrients. We identified that the TA1 gene, which is expressed in embryo, aleurone, and subaleurone in caryopses, encodes a mitochondrion-targeted protein with single-stranded DNA-binding activity named OsmtSSB1. Cytological analyses revealed that the increased aleurone cell layers in ta1 originate from a developmental switch of subaleurone toward aleurone instead of starchy endosperm in the wild type. We found that TA1/OsmtSSB1 interacts with mitochondrial DNA recombinase RECA3 and DNA helicase TWINKLE, and downregulation of RECA3 or TWINKLE also leads to ta1-like phenotypes. We further showed that mutation in TA1/OsmtSSB1 causes elevated illegitimate recombinations in the mitochondrial genome, altered mitochondrial morphology, and compromised energy supply, suggesting that the OsmtSSB1-mediated mitochondrial function plays a critical role in subaleurone cell-fate determination in rice.
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Affiliation(s)
- Dong-Qi Li
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100864, China
| | - Xiao-Ba Wu
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100864, China
| | - Hai-Feng Wang
- Rice Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Xue Feng
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Shi-Juan Yan
- Guangdong Key Laboratory for Crop Germplasm Resources Preservation and Utilization, Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Sheng-Yang Wu
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100864, China
| | - Jin-Xin Liu
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100864, China
| | - Xue-Feng Yao
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100864, China
| | - Ai-Ning Bai
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100864, China
| | - Heng Zhao
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xiu-Fen Song
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100864, China
| | - Lin Guo
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Shi-Yong Zhang
- Rice Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Chun-Ming Liu
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100864, China; Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China; School of Advanced Agricultural Sciences, Peking University, Beijing 100871, China; Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China.
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8
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Ren Y, Huang Z, Jiang H, Wang Z, Wu F, Xiong Y, Yao J. A heat stress responsive NAC transcription factor heterodimer plays key roles in rice grain filling. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:2947-2964. [PMID: 33476364 DOI: 10.1093/jxb/erab027] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 01/19/2021] [Indexed: 05/10/2023]
Abstract
High temperature often leads to failure of grain filling in rice (Oryza sativa) causing yield loss, but the underlying mechanisms are still not elucidated. Here, we report that two genes encoding seed-specific NAM/ATAF/CUC (NAC) domain transcription factors, ONAC127 and ONAC129, are responsive to heat stress and involved in the grain filling process of rice. ONAC127 and ONAC129 are dominantly expressed in the pericarp and can form a heterodimer during rice grain filling. CRISPR/Cas9 induced mutants and overexpression lines were then generated to investigate the function of these two transcription factors. Interestingly, both knock-out and overexpression plants showed incomplete grain filling and shrunken grains, which became more severe under heat stress. Transcriptome analysis revealed that ONAC127 and ONAC129 mainly regulate stimulus response and nutrient transport. ChIP-seq analysis identified that the direct target genes of ONAC127 and ONAC129 in developing rice seeds include monosaccharide transporter gene OsMST6, sugar transporter gene OsSWEET4, calmodulin-like protein gene OsMSR2 and AP2/ERF factor gene OsEATB. These results suggest that ONAC127 and ONAC129 regulate grain filling by affecting sugar transportation and abiotic stress responses. Overall, this study demonstrates a transcriptional regulatory network with ONAC127 and ONAC129 coordinating multiple pathways to modulate seed development and heat stress responses at rice reproductive stages.
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Affiliation(s)
- Ye Ren
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhouquan Huang
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Hao Jiang
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhuo Wang
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Fengsheng Wu
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yufei Xiong
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jialing Yao
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
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Yan M, Zheng L, Li B, Shen R, Lan P. Comparative proteomics reveals new insights into the endosperm responses to drought, salinity and submergence in germinating wheat seeds. PLANT MOLECULAR BIOLOGY 2021; 105:287-302. [PMID: 33104943 DOI: 10.1007/s11103-020-01087-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 10/15/2020] [Indexed: 05/20/2023]
Abstract
Beyond the role of a nutrient reservoir during germination, the endosperm of wheat seeds also responds to different abiotic stresses via modification of the protein profiles. The endosperm is the main component of wheat seeds. During seed germination, it provides nutrients to support the embryo development, and its constituents vary under environmental stresses such as drought, salinity and submergence that are associated with disordered water supply. However, the molecular mechanism of these stress responses remains unclear. In this study, a comparative label-free proteomic analysis was performed on endosperm from the germinating wheat seeds subjected to PEG, NaCl and submergence treatments. In total, 2273 high confidence proteins were detected, and 234, 207 and 209 of them were identified as differentially expressed proteins (DEPs) under the three stresses, respectively. Functional classification revealed that the DEPs were mainly involved in protein, amino acid and organic acid metabolic process in all stress treatments. While some other metabolic processes were highlighted in one or two of the stresses specifically, such as oxidative phosphorylation in PEG and submergence, and β-alanine metabolism in PEG and NaCl treatments. The identification of a series of stress-related proteins and their biased expression in different stresses indicates the active stress-responding role of endosperm beyond a simple nutrient reservoir during germination, while the overall stress responses of the endosperm were found to be moderate and lag behind the embryo. Besides, some fundamental processes and DEPs shared by the three stresses could be selected priorly for future molecular breeding researches. Our results provide new insights into the mechanism of endosperm responses to abiotic stresses during seed germination.
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Affiliation(s)
- Mingke Yan
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lu Zheng
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Bingjuan Li
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Renfang Shen
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Ping Lan
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
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Ram H, Gandass N, Sharma A, Singh A, Sonah H, Deshmukh R, Pandey AK, Sharma TR. Spatio-temporal distribution of micronutrients in rice grains and its regulation. Crit Rev Biotechnol 2020; 40:490-507. [DOI: 10.1080/07388551.2020.1742647] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Hasthi Ram
- Department of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | - Nishu Gandass
- Department of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | - Ankita Sharma
- Department of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | - Anmol Singh
- Department of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | - Humira Sonah
- Department of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | - Rupesh Deshmukh
- Department of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | - Ajay Kumar Pandey
- Department of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | - Tilak Raj Sharma
- Department of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
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Xiong Y, Ren Y, Li W, Wu F, Yang W, Huang X, Yao J. NF-YC12 is a key multi-functional regulator of accumulation of seed storage substances in rice. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:3765-3780. [PMID: 31211389 PMCID: PMC6685661 DOI: 10.1093/jxb/erz168] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 03/27/2019] [Indexed: 05/02/2023]
Abstract
Starch and storage proteins, the primary storage substances of cereal endosperm, are a major source of food for humans. However, the transcriptional regulatory networks of the synthesis and accumulation of storage substances remain largely unknown. Here, we identified a rice endosperm-specific gene, NF-YC12, that encodes a putative nuclear factor-Y transcription factor subunit C. NF-YC12 is expressed in the aleurone layer and starchy endosperm during grain development. Knockout of NF-YC12 significantly decreased grain weight as well as altering starch and protein accumulation and starch granule formation. RNA-sequencing analysis revealed that in the nf-yc12 mutant genes related to starch biosynthesis and the metabolism of energy reserves were enriched in the down-regulated category. In addition, starch and protein contents in seeds differed between NF-YC12-overexpression lines and the wild-type. NF-YC12 was found to interact with NF-YB1. ChIP-qPCR and yeast one-hybrid assays showed that NF-YC12 regulated the rice sucrose transporter OsSUT1 in coordination with NF-YB1 in the aleurone layer. In addition, NF-YC12 was directly bound to the promoters of FLO6 (FLOURY ENDOSPERM6) and OsGS1;3 (glutamine synthetase1) in developing endosperm. This study demonstrates a transcriptional regulatory network involving NF-YC12, which coordinates multiple pathways to regulate endosperm development and the accumulation of storage substances in rice seeds.
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Affiliation(s)
- Yufei Xiong
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Ye Ren
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Wang Li
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Fengsheng Wu
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Wenjie Yang
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Xiaolong Huang
- The Key Laboratory of Plant Physiology and Development Regulation, School of Life Sciences, Guizhou Normal University, Guiyang, China
| | - Jialing Yao
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
- Correspondence:
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Affiliation(s)
- Yasunori Nakamura
- Akita Natural Science Laboratory; Tennoh, Katagami, Akita Japan
- Faculty of Bioresource Sciences; Akita Prefectural University; Shimoshinjo-Nakano, Akita Japan
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