{"title":"Rice <i>KORPOKKUR</i> gene is expressed in mitotic cells and regulates pleiotropic features during vegetative phase.","authors":"Kaito Chiba, Takumi Tezuka, Hiroetsu Wabiko, Yasuo Nagato, Nobuhiro Nagasawa, Namiko Satoh-Nagasawa","doi":"10.5511/plantbiotechnology.24.0305a","DOIUrl":null,"url":null,"abstract":"<p><p>Cell division is important for organisms to grow and repair damaged tissues. A mutant screen in rice has identified dwarf <i>korpokkur</i> (<i>kor</i>) mutants that code for a novel protein potentially involved in mitosis including cytokinesis in rice. The <i>KOR</i> gene is expressed during the mitotic phase and a defect in the <i>KOR</i> gene induces cells with two nuclei. Analysis of <i>kor</i> mutants suggests that the <i>KOR</i> gene promotes cell division in the rice leaf primordia for a period after initiation, and maintains proper cell morphology especially in non-meristematic tissues. Additionally, <i>kor</i> mutants showed a delayed transition from juvenile phase to adult phase. Future research will shed light on the relationship between the mitotic defect and other features observed in the <i>kor</i> mutants.</p>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11500571/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.5511/plantbiotechnology.24.0305a","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Cell division is important for organisms to grow and repair damaged tissues. A mutant screen in rice has identified dwarf korpokkur (kor) mutants that code for a novel protein potentially involved in mitosis including cytokinesis in rice. The KOR gene is expressed during the mitotic phase and a defect in the KOR gene induces cells with two nuclei. Analysis of kor mutants suggests that the KOR gene promotes cell division in the rice leaf primordia for a period after initiation, and maintains proper cell morphology especially in non-meristematic tissues. Additionally, kor mutants showed a delayed transition from juvenile phase to adult phase. Future research will shed light on the relationship between the mitotic defect and other features observed in the kor mutants.
细胞分裂对生物体的生长和修复受损组织非常重要。通过对水稻突变体的筛选，发现了矮小的 korpokkur（kor）突变体，其编码的一种新型蛋白质可能参与了水稻的有丝分裂（包括细胞分裂）。KOR 基因在有丝分裂期表达，KOR 基因缺陷会诱导细胞出现两个核。对 kor 突变体的分析表明，KOR 基因在水稻叶片初生期开始后的一段时间内促进细胞分裂，并维持细胞的正常形态，尤其是在非分裂组织中。此外，kor 突变体从幼叶期向成叶期的过渡出现延迟。未来的研究将揭示有丝分裂缺陷与在 kor 突变体中观察到的其他特征之间的关系。
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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