FLOURY ENDOSPERM24, a heat shock protein 101 (HSP101), is required for starch biosynthesis and endosperm development in rice

Summary Endosperm is the main storage organ in cereal grain and determines grain yield and quality. The molecular mechanisms of heat shock proteins in regulating starch biosynthesis and endosperm development remain obscure. Here, we report a rice floury endosperm mutant flo24 that develops abnormal...

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Veröffentlicht in:The New phytologist 2024-06, Vol.242 (6), p.2635-2651
Hauptverfasser: Wu, Hongming, Ren, Yulong, Dong, Hui, Xie, Chen, Zhao, Lei, Wang, Xin, Zhang, Fulin, Zhang, Binglei, Jiang, Xiaokang, Huang, Yunshuai, Jing, Ruonan, Wang, Jian, Miao, Rong, Bao, Xiuhao, Yu, Mingzhou, Nguyen, Thanhliem, Mou, Changling, Wang, Yunlong, Wang, Yihua, Lei, Cailin, Cheng, Zhijun, Jiang, Ling, Wan, Jianmin
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container_end_page 2651
container_issue 6
container_start_page 2635
container_title The New phytologist
container_volume 242
creator Wu, Hongming
Ren, Yulong
Dong, Hui
Xie, Chen
Zhao, Lei
Wang, Xin
Zhang, Fulin
Zhang, Binglei
Jiang, Xiaokang
Huang, Yunshuai
Jing, Ruonan
Wang, Jian
Miao, Rong
Bao, Xiuhao
Yu, Mingzhou
Nguyen, Thanhliem
Mou, Changling
Wang, Yunlong
Wang, Yihua
Lei, Cailin
Cheng, Zhijun
Jiang, Ling
Wan, Jianmin
description Summary Endosperm is the main storage organ in cereal grain and determines grain yield and quality. The molecular mechanisms of heat shock proteins in regulating starch biosynthesis and endosperm development remain obscure. Here, we report a rice floury endosperm mutant flo24 that develops abnormal starch grains in the central starchy endosperm cells. Map‐based cloning and complementation test showed that FLO24 encodes a heat shock protein HSP101, which is localized in plastids. The mutated protein FLO24T296I dramatically lost its ability to hydrolyze ATP and to rescue the thermotolerance defects of the yeast hsp104 mutant. The flo24 mutant develops more severe floury endosperm when grown under high‐temperature conditions than normal conditions. And the FLO24 protein was dramatically induced at high temperature. FLO24 physically interacts with several key enzymes required for starch biosynthesis, including AGPL1, AGPL3 and PHO1. Combined biochemical and genetic evidence suggests that FLO24 acts cooperatively with HSP70cp‐2 to regulate starch biosynthesis and endosperm development in rice. Our results reveal that FLO24 acts as an important regulator of endosperm development, which might function in maintaining the activities of enzymes involved in starch biosynthesis in rice.
doi_str_mv 10.1111/nph.19761
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The molecular mechanisms of heat shock proteins in regulating starch biosynthesis and endosperm development remain obscure. Here, we report a rice floury endosperm mutant flo24 that develops abnormal starch grains in the central starchy endosperm cells. Map‐based cloning and complementation test showed that FLO24 encodes a heat shock protein HSP101, which is localized in plastids. The mutated protein FLO24T296I dramatically lost its ability to hydrolyze ATP and to rescue the thermotolerance defects of the yeast hsp104 mutant. The flo24 mutant develops more severe floury endosperm when grown under high‐temperature conditions than normal conditions. And the FLO24 protein was dramatically induced at high temperature. FLO24 physically interacts with several key enzymes required for starch biosynthesis, including AGPL1, AGPL3 and PHO1. Combined biochemical and genetic evidence suggests that FLO24 acts cooperatively with HSP70cp‐2 to regulate starch biosynthesis and endosperm development in rice. Our results reveal that FLO24 acts as an important regulator of endosperm development, which might function in maintaining the activities of enzymes involved in starch biosynthesis in rice.</description><identifier>ISSN: 0028-646X</identifier><identifier>ISSN: 1469-8137</identifier><identifier>EISSN: 1469-8137</identifier><identifier>DOI: 10.1111/nph.19761</identifier><identifier>PMID: 38634187</identifier><language>eng</language><publisher>England: Wiley Subscription Services, Inc</publisher><subject>ATP ; Biosynthesis ; Cloning ; Complementation ; Crop yield ; Crystal defects ; Endosperm ; endosperm development ; Enzymes ; FLO24 ; grain yield ; Heat ; Heat shock ; Heat shock proteins ; heat stress ; heat tolerance ; High temperature ; Molecular modelling ; Mutants ; plastid ; plastids ; Proteins ; Rice ; Starch ; starch biosynthesis ; Starch grains ; Storage organs ; temperature ; Temperature requirements ; Temperature tolerance ; Yeasts</subject><ispartof>The New phytologist, 2024-06, Vol.242 (6), p.2635-2651</ispartof><rights>2024 The Authors © 2024 New Phytologist Foundation</rights><rights>2024 The Authors. New Phytologist © 2024 New Phytologist Foundation.</rights><rights>Copyright © 2024 New Phytologist Trust</rights><rights>2024 The Authors New Phytologist © 2024 New Phytologist Foundation.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3861-260df16a85c67f097cae64641e793e688aa6c0f58beb2fb1d31f5c1274cce1433</citedby><cites>FETCH-LOGICAL-c3861-260df16a85c67f097cae64641e793e688aa6c0f58beb2fb1d31f5c1274cce1433</cites><orcidid>0000-0002-0017-8760 ; 0000-0002-7813-4362 ; 0000-0002-8473-1948 ; 0000-0002-9032-3529 ; 0000-0003-1464-5881</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fnph.19761$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fnph.19761$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/38634187$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wu, Hongming</creatorcontrib><creatorcontrib>Ren, Yulong</creatorcontrib><creatorcontrib>Dong, Hui</creatorcontrib><creatorcontrib>Xie, Chen</creatorcontrib><creatorcontrib>Zhao, Lei</creatorcontrib><creatorcontrib>Wang, Xin</creatorcontrib><creatorcontrib>Zhang, Fulin</creatorcontrib><creatorcontrib>Zhang, Binglei</creatorcontrib><creatorcontrib>Jiang, Xiaokang</creatorcontrib><creatorcontrib>Huang, Yunshuai</creatorcontrib><creatorcontrib>Jing, Ruonan</creatorcontrib><creatorcontrib>Wang, Jian</creatorcontrib><creatorcontrib>Miao, Rong</creatorcontrib><creatorcontrib>Bao, Xiuhao</creatorcontrib><creatorcontrib>Yu, Mingzhou</creatorcontrib><creatorcontrib>Nguyen, Thanhliem</creatorcontrib><creatorcontrib>Mou, Changling</creatorcontrib><creatorcontrib>Wang, Yunlong</creatorcontrib><creatorcontrib>Wang, Yihua</creatorcontrib><creatorcontrib>Lei, Cailin</creatorcontrib><creatorcontrib>Cheng, Zhijun</creatorcontrib><creatorcontrib>Jiang, Ling</creatorcontrib><creatorcontrib>Wan, Jianmin</creatorcontrib><title>FLOURY ENDOSPERM24, a heat shock protein 101 (HSP101), is required for starch biosynthesis and endosperm development in rice</title><title>The New phytologist</title><addtitle>New Phytol</addtitle><description>Summary Endosperm is the main storage organ in cereal grain and determines grain yield and quality. The molecular mechanisms of heat shock proteins in regulating starch biosynthesis and endosperm development remain obscure. Here, we report a rice floury endosperm mutant flo24 that develops abnormal starch grains in the central starchy endosperm cells. Map‐based cloning and complementation test showed that FLO24 encodes a heat shock protein HSP101, which is localized in plastids. The mutated protein FLO24T296I dramatically lost its ability to hydrolyze ATP and to rescue the thermotolerance defects of the yeast hsp104 mutant. The flo24 mutant develops more severe floury endosperm when grown under high‐temperature conditions than normal conditions. And the FLO24 protein was dramatically induced at high temperature. FLO24 physically interacts with several key enzymes required for starch biosynthesis, including AGPL1, AGPL3 and PHO1. Combined biochemical and genetic evidence suggests that FLO24 acts cooperatively with HSP70cp‐2 to regulate starch biosynthesis and endosperm development in rice. Our results reveal that FLO24 acts as an important regulator of endosperm development, which might function in maintaining the activities of enzymes involved in starch biosynthesis in rice.</description><subject>ATP</subject><subject>Biosynthesis</subject><subject>Cloning</subject><subject>Complementation</subject><subject>Crop yield</subject><subject>Crystal defects</subject><subject>Endosperm</subject><subject>endosperm development</subject><subject>Enzymes</subject><subject>FLO24</subject><subject>grain yield</subject><subject>Heat</subject><subject>Heat shock</subject><subject>Heat shock proteins</subject><subject>heat stress</subject><subject>heat tolerance</subject><subject>High temperature</subject><subject>Molecular modelling</subject><subject>Mutants</subject><subject>plastid</subject><subject>plastids</subject><subject>Proteins</subject><subject>Rice</subject><subject>Starch</subject><subject>starch biosynthesis</subject><subject>Starch grains</subject><subject>Storage organs</subject><subject>temperature</subject><subject>Temperature requirements</subject><subject>Temperature tolerance</subject><subject>Yeasts</subject><issn>0028-646X</issn><issn>1469-8137</issn><issn>1469-8137</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNqF0VFr1TAYBuAgijtOL_wDEvBmg3XL16RJejnmmUc47hw2B3pV0vQr7WybLmmVA_54M8_0QhBz8908vOTlJeQ1sFOI72wYm1PIlYQnZAFC5okGrp6SBWOpTqSQnw_IixDuGGN5JtPn5IBryQVotSA_Lteb2-svdHn1bnOzXV5_TMUJNbRBM9HQOPuVjt5N2A4UGNCj1c023uMT2gbq8X5uPVa0dp6GyXjb0LJ1YTdMDYYIzFBRHCoXRvQ9rfAbdm7scZhojPOtxZfkWW26gK8e7yG5vVx-ulgl6837Dxfn68TGj0KSSlbVII3OrFQ1y5U1GFsJQJVzlFobIy2rM11imdYlVBzqzEKqhLUIgvNDcrTPjV3uZwxT0bfBYteZAd0cCg4Zz4TKJfs_ZQJSDorLSN_-Re_c7IdYJKpMc82lelDHe2W9C8FjXYy-7Y3fFcCKh_WKuF7xa71o3zwmzmWP1R_5e64Izvbge9vh7t9JxdV2tY_8CaQSoEg</recordid><startdate>202406</startdate><enddate>202406</enddate><creator>Wu, Hongming</creator><creator>Ren, Yulong</creator><creator>Dong, Hui</creator><creator>Xie, Chen</creator><creator>Zhao, Lei</creator><creator>Wang, Xin</creator><creator>Zhang, Fulin</creator><creator>Zhang, Binglei</creator><creator>Jiang, Xiaokang</creator><creator>Huang, Yunshuai</creator><creator>Jing, Ruonan</creator><creator>Wang, Jian</creator><creator>Miao, Rong</creator><creator>Bao, Xiuhao</creator><creator>Yu, Mingzhou</creator><creator>Nguyen, Thanhliem</creator><creator>Mou, Changling</creator><creator>Wang, Yunlong</creator><creator>Wang, Yihua</creator><creator>Lei, Cailin</creator><creator>Cheng, Zhijun</creator><creator>Jiang, Ling</creator><creator>Wan, Jianmin</creator><general>Wiley Subscription Services, Inc</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>7SN</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H95</scope><scope>L.G</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope><scope>7S9</scope><scope>L.6</scope><orcidid>https://orcid.org/0000-0002-0017-8760</orcidid><orcidid>https://orcid.org/0000-0002-7813-4362</orcidid><orcidid>https://orcid.org/0000-0002-8473-1948</orcidid><orcidid>https://orcid.org/0000-0002-9032-3529</orcidid><orcidid>https://orcid.org/0000-0003-1464-5881</orcidid></search><sort><creationdate>202406</creationdate><title>FLOURY ENDOSPERM24, a heat shock protein 101 (HSP101), is required for starch biosynthesis and endosperm development in rice</title><author>Wu, Hongming ; Ren, Yulong ; Dong, Hui ; Xie, Chen ; Zhao, Lei ; Wang, Xin ; Zhang, Fulin ; Zhang, Binglei ; Jiang, Xiaokang ; Huang, Yunshuai ; Jing, Ruonan ; Wang, Jian ; Miao, Rong ; Bao, Xiuhao ; Yu, Mingzhou ; Nguyen, Thanhliem ; Mou, Changling ; Wang, Yunlong ; Wang, Yihua ; Lei, Cailin ; Cheng, Zhijun ; Jiang, Ling ; Wan, Jianmin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3861-260df16a85c67f097cae64641e793e688aa6c0f58beb2fb1d31f5c1274cce1433</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>ATP</topic><topic>Biosynthesis</topic><topic>Cloning</topic><topic>Complementation</topic><topic>Crop yield</topic><topic>Crystal defects</topic><topic>Endosperm</topic><topic>endosperm development</topic><topic>Enzymes</topic><topic>FLO24</topic><topic>grain yield</topic><topic>Heat</topic><topic>Heat shock</topic><topic>Heat shock proteins</topic><topic>heat stress</topic><topic>heat tolerance</topic><topic>High temperature</topic><topic>Molecular modelling</topic><topic>Mutants</topic><topic>plastid</topic><topic>plastids</topic><topic>Proteins</topic><topic>Rice</topic><topic>Starch</topic><topic>starch biosynthesis</topic><topic>Starch grains</topic><topic>Storage organs</topic><topic>temperature</topic><topic>Temperature requirements</topic><topic>Temperature tolerance</topic><topic>Yeasts</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, Hongming</creatorcontrib><creatorcontrib>Ren, Yulong</creatorcontrib><creatorcontrib>Dong, Hui</creatorcontrib><creatorcontrib>Xie, Chen</creatorcontrib><creatorcontrib>Zhao, Lei</creatorcontrib><creatorcontrib>Wang, Xin</creatorcontrib><creatorcontrib>Zhang, Fulin</creatorcontrib><creatorcontrib>Zhang, Binglei</creatorcontrib><creatorcontrib>Jiang, Xiaokang</creatorcontrib><creatorcontrib>Huang, Yunshuai</creatorcontrib><creatorcontrib>Jing, Ruonan</creatorcontrib><creatorcontrib>Wang, Jian</creatorcontrib><creatorcontrib>Miao, Rong</creatorcontrib><creatorcontrib>Bao, Xiuhao</creatorcontrib><creatorcontrib>Yu, Mingzhou</creatorcontrib><creatorcontrib>Nguyen, Thanhliem</creatorcontrib><creatorcontrib>Mou, Changling</creatorcontrib><creatorcontrib>Wang, Yunlong</creatorcontrib><creatorcontrib>Wang, Yihua</creatorcontrib><creatorcontrib>Lei, Cailin</creatorcontrib><creatorcontrib>Cheng, Zhijun</creatorcontrib><creatorcontrib>Jiang, Ling</creatorcontrib><creatorcontrib>Wan, Jianmin</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Ecology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science &amp; 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The molecular mechanisms of heat shock proteins in regulating starch biosynthesis and endosperm development remain obscure. Here, we report a rice floury endosperm mutant flo24 that develops abnormal starch grains in the central starchy endosperm cells. Map‐based cloning and complementation test showed that FLO24 encodes a heat shock protein HSP101, which is localized in plastids. The mutated protein FLO24T296I dramatically lost its ability to hydrolyze ATP and to rescue the thermotolerance defects of the yeast hsp104 mutant. The flo24 mutant develops more severe floury endosperm when grown under high‐temperature conditions than normal conditions. And the FLO24 protein was dramatically induced at high temperature. FLO24 physically interacts with several key enzymes required for starch biosynthesis, including AGPL1, AGPL3 and PHO1. Combined biochemical and genetic evidence suggests that FLO24 acts cooperatively with HSP70cp‐2 to regulate starch biosynthesis and endosperm development in rice. Our results reveal that FLO24 acts as an important regulator of endosperm development, which might function in maintaining the activities of enzymes involved in starch biosynthesis in rice.</abstract><cop>England</cop><pub>Wiley Subscription Services, Inc</pub><pmid>38634187</pmid><doi>10.1111/nph.19761</doi><tpages>17</tpages><orcidid>https://orcid.org/0000-0002-0017-8760</orcidid><orcidid>https://orcid.org/0000-0002-7813-4362</orcidid><orcidid>https://orcid.org/0000-0002-8473-1948</orcidid><orcidid>https://orcid.org/0000-0002-9032-3529</orcidid><orcidid>https://orcid.org/0000-0003-1464-5881</orcidid></addata></record>
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subjects ATP
Biosynthesis
Cloning
Complementation
Crop yield
Crystal defects
Endosperm
endosperm development
Enzymes
FLO24
grain yield
Heat
Heat shock
Heat shock proteins
heat stress
heat tolerance
High temperature
Molecular modelling
Mutants
plastid
plastids
Proteins
Rice
Starch
starch biosynthesis
Starch grains
Storage organs
temperature
Temperature requirements
Temperature tolerance
Yeasts
title FLOURY ENDOSPERM24, a heat shock protein 101 (HSP101), is required for starch biosynthesis and endosperm development in rice
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