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{"title":"Conceal the signals","authors":"Jun Lyu","doi":"10.1038/s41477-025-01968-0","DOIUrl":null,"url":null,"abstract":"","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":"11 3","pages":"381-381"},"PeriodicalIF":15.8000,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature Plants","FirstCategoryId":"99","ListUrlMain":"https://www.nature.com/articles/s41477-025-01968-0","RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
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缺磷促进SL生物合成和分泌到土壤中。研究人员使用一种能够方便地操纵磷酸盐条件的水培高粱生长系统,观察到在磷酸盐缺乏的条件下,SL生物合成和信号传导基因以及ABC转运蛋白的上调。然后,他们重点研究了两种主要在根表皮细胞中表达的质膜转运蛋白(ABCG36和ABCG48),因为它们是由磷酸盐缺乏和根SL处理诱导的。基于酵母和非洲爪蟾卵母细胞的表达系统表明,ABCG36和ABCG48可以有效地输出SLs。因此,ABCG36和ABCG48分别被命名为高粱SL转运体1 (SbSLT1)和SbSLT2。稳定表达SbSLT1或SbSLT2的拟南芥品系对高浓度SL的耐受性增强,根组织分泌更多SL。这种SL输出活性似乎是SbSLT1和SbSLT2所特有的,因为高粱中的其他ABCG蛋白没有这种活性。
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