{"title":"转录因子基因 RDD3 可提高水稻对铵和镁的吸收和积累以及抗旱能力","authors":"Masao Iwamoto","doi":"10.1007/s11105-023-01428-z","DOIUrl":null,"url":null,"abstract":"<p>We investigated the expression and functions of a transcription factor gene, <i>RDD3</i>. It displays sequence similarity to <i>RDD1</i>, which controls various nutrient ion accumulation and uptake in rice. The RDD3 protein was specifically localized to protoxylems and metaxylems in the vascular bundles. <i>RDD3</i>-overexpressing (<i>RDD3</i>-OX) plants increased the RDD3 protein levels early in the light period and improved NH<sub>4</sub><sup>+</sup> and Mg<sup>2+</sup> uptake and accumulation in the shoots. Furthermore, photosynthetic CO<sub>2</sub> assimilation and stomatal conductance in <i>RDD3</i>-OX plants were higher than in wild-type plants, although shoot dry weight was decreased in mature <i>RDD3</i>-OX plants. Subsequent microarray analysis indicated that the late embryogenesis abundant (LEA) protein genes associated with drought responses were upregulated in <i>RDD3</i>-OX plants, whereas WRKY transcription factor genes were downregulated despite participating in defenses against biotic and abiotic stresses. Examining drought stress tolerance indicated that <i>RDD3</i>-OX plants were more tolerant than wild-type plants. These results indicate that increased RDD3 protein levels early in the light period improve nitrogen and magnesium accumulation and drought stress tolerance in <i>RDD3</i>-OX plants.</p>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The Transcription Factor Gene RDD3 Improves Ammonium and Magnesium Uptake and Accumulation and Drought Tolerance in Rice\",\"authors\":\"Masao Iwamoto\",\"doi\":\"10.1007/s11105-023-01428-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>We investigated the expression and functions of a transcription factor gene, <i>RDD3</i>. It displays sequence similarity to <i>RDD1</i>, which controls various nutrient ion accumulation and uptake in rice. The RDD3 protein was specifically localized to protoxylems and metaxylems in the vascular bundles. <i>RDD3</i>-overexpressing (<i>RDD3</i>-OX) plants increased the RDD3 protein levels early in the light period and improved NH<sub>4</sub><sup>+</sup> and Mg<sup>2+</sup> uptake and accumulation in the shoots. Furthermore, photosynthetic CO<sub>2</sub> assimilation and stomatal conductance in <i>RDD3</i>-OX plants were higher than in wild-type plants, although shoot dry weight was decreased in mature <i>RDD3</i>-OX plants. Subsequent microarray analysis indicated that the late embryogenesis abundant (LEA) protein genes associated with drought responses were upregulated in <i>RDD3</i>-OX plants, whereas WRKY transcription factor genes were downregulated despite participating in defenses against biotic and abiotic stresses. Examining drought stress tolerance indicated that <i>RDD3</i>-OX plants were more tolerant than wild-type plants. These results indicate that increased RDD3 protein levels early in the light period improve nitrogen and magnesium accumulation and drought stress tolerance in <i>RDD3</i>-OX plants.</p>\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2023-12-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1007/s11105-023-01428-z\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1007/s11105-023-01428-z","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
The Transcription Factor Gene RDD3 Improves Ammonium and Magnesium Uptake and Accumulation and Drought Tolerance in Rice
We investigated the expression and functions of a transcription factor gene, RDD3. It displays sequence similarity to RDD1, which controls various nutrient ion accumulation and uptake in rice. The RDD3 protein was specifically localized to protoxylems and metaxylems in the vascular bundles. RDD3-overexpressing (RDD3-OX) plants increased the RDD3 protein levels early in the light period and improved NH4+ and Mg2+ uptake and accumulation in the shoots. Furthermore, photosynthetic CO2 assimilation and stomatal conductance in RDD3-OX plants were higher than in wild-type plants, although shoot dry weight was decreased in mature RDD3-OX plants. Subsequent microarray analysis indicated that the late embryogenesis abundant (LEA) protein genes associated with drought responses were upregulated in RDD3-OX plants, whereas WRKY transcription factor genes were downregulated despite participating in defenses against biotic and abiotic stresses. Examining drought stress tolerance indicated that RDD3-OX plants were more tolerant than wild-type plants. These results indicate that increased RDD3 protein levels early in the light period improve nitrogen and magnesium accumulation and drought stress tolerance in RDD3-OX plants.
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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