{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,21]],"date-time":"2026-08-21T13:37:38Z","timestamp":1787319458885,"version":"build-2736575974"},"reference-count":65,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T00:00:00Z","timestamp":1776816000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T00:00:00Z","timestamp":1776816000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100012226","name":"Fundamental Research Funds for the Central Universities","doi-asserted-by":"publisher","award":["lzujbky\u20102025\u2010jdzx05"],"award-info":[{"award-number":["lzujbky\u20102025\u2010jdzx05"]}],"id":[{"id":"10.13039\/501100012226","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012226","name":"Fundamental Research Funds for the Central Universities","doi-asserted-by":"publisher","award":["lzujbky\u20102022\u2010kb03"],"award-info":[{"award-number":["lzujbky\u20102022\u2010kb03"]}],"id":[{"id":"10.13039\/501100012226","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["nph.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["New Phytologist"],"published-print":{"date-parts":[[2026,6]]},"abstract":"<jats:title>Summary<\/jats:title>\n                  <jats:p>\n                    <jats:list list-type=\"bullet\">\n                      <jats:list-item>\n                        <jats:p>Functional stomata depend on paired guard cells that arise from a single symmetric division of the guard mother cell (GMC). However, the mechanism governing this division in grasses with unique dumbbell\u2010shaped guard cells remains poorly understood.<\/jats:p>\n                      <\/jats:list-item>\n                      <jats:list-item>\n                        <jats:p>\n                          Here, we identify OsCYCD7;1 as an essential component for GMC division in rice.\n                          <jats:italic>OsCYCD7;1<\/jats:italic>\n                          was strictly confined to pre\u2010divisional GMCs, and its knockout prevented GMC division. OsSMR9, a plant CDK (cyclin\u2010dependent kinase) inhibitor, physically interacted with OsCYCD7;1 and suppressed GMC division.\n                        <\/jats:p>\n                      <\/jats:list-item>\n                      <jats:list-item>\n                        <jats:p>\n                          Yeast one\u2010hybrid (Y1H) and EMSA assays revealed OsMUTE directly bound to\n                          <jats:italic>OsCYCD7;1<\/jats:italic>\n                          promoter. Consistently,\n                          <jats:italic>OsCYCD7;1<\/jats:italic>\n                          expression was repeatedly detected in ectopically dividing GMCs of\n                          <jats:italic>osmute<\/jats:italic>\n                          mutant. This ectopic division was markedly suppressed in\n                          <jats:italic>oscycd7;1 osmute<\/jats:italic>\n                          but enhanced by\n                          <jats:italic>OsCYCD7;1<\/jats:italic>\n                          overexpression in\n                          <jats:italic>osmute.<\/jats:italic>\n                          Moreover, a similar enhancement was observed in\n                          <jats:italic>osflp osmute<\/jats:italic>\n                          . Furthermore, Y1H and dual\u2010luciferase assays indicated OsMUTE also bound to and activated\n                          <jats:italic>OsSMR9<\/jats:italic>\n                          .\n                        <\/jats:p>\n                      <\/jats:list-item>\n                      <jats:list-item>\n                        <jats:p>We demonstrate that OsCYCD7;1 is essential for GMC division. Specifically, its activity is inhibited through OsMUTE\u2010activated OsSMR9, and its expression is negatively influenced by OsMUTE and OsFLP, which likely function together to ensure a single symmetric GMC division in rice. Our data expand grass\u2010specific GMC division of stomatal development, fundamentally diverging from Arabidopsis.<\/jats:p>\n                      <\/jats:list-item>\n                    <\/jats:list>\n                  <\/jats:p>","DOI":"10.1111\/nph.71205","type":"journal-article","created":{"date-parts":[[2026,4,23]],"date-time":"2026-04-23T04:19:56Z","timestamp":1776917996000},"page":"3867-3884","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["<scp>OsCYCD7<\/scp>\n                    ;1 rigidly determines guard mother cell division in rice"],"prefix":"10.1111","volume":"250","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2057-4370","authenticated-orcid":false,"given":"Longfeng","family":"Yan","sequence":"first","affiliation":[{"name":"Key Laboratory of Gene Editing for Breeding, Gansu Province, Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education School of Life Sciences, Lanzhou University  Lanzhou 730000 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-9910-1380","authenticated-orcid":false,"given":"Xiaoli","family":"Gu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Gene Editing for Breeding, Gansu Province, Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education School of Life Sciences, Lanzhou University  Lanzhou 730000 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-8496-6776","authenticated-orcid":false,"given":"Wentian","family":"Li","sequence":"additional","affiliation":[{"name":"Key Laboratory of Gene Editing for Breeding, Gansu Province, Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education School of Life Sciences, Lanzhou University  Lanzhou 730000 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China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1961-4216","authenticated-orcid":false,"given":"Suiwen","family":"Hou","sequence":"additional","affiliation":[{"name":"Key Laboratory of Gene Editing for Breeding, Gansu Province, Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education School of Life Sciences, Lanzhou University  Lanzhou 730000 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