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{"title":"Urban heat stress triggering plant evolution","authors":"Catherine Walker","doi":"10.1038/s41477-023-01576-w","DOIUrl":null,"url":null,"abstract":"","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":"9 11","pages":"1782-1782"},"PeriodicalIF":15.8000,"publicationDate":"2023-11-09","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/s41477-023-01576-w","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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城市热应激引发植物进化
城市环境是由沥青、混凝土、砖和石头等不透水表面建造的,这些材料在吸收和重新散发热量方面非常有效。这项研究从一个简单但引人注目的观察开始。飞檐草栖息在不同的栖息地,其叶片颜色从绿色到红色都有高度的种内变异。虽然在农村环境中很少发现,但研究人员注意到,红叶个体更可能生长在城市空间。红色色素,也被称为花青素,在缓解热应激方面的作用是众所周知的——它们通过拦截过量的阳光或中和活性氧发挥作用。因此,研究人员质疑这些环境中红叶个体的高频率是否是对城市热应激的快速、适应性反应。
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