{"title":"马尾松幼苗对渗透胁迫反应的生理和转录组学分析","authors":"H. Xu, X. Gao, C. Yu","doi":"10.32615/BP.2021.016","DOIUrl":null,"url":null,"abstract":"Masson pine (Pinus massoniana Lamb.) is an important tree species of high economic value in southern China, but osmotic stress threatens its growth and development. In this study, physiological measurements and RNA-Seq analysis were used to clarify the physiological and molecular responses of P. massoniana under osmotic stress. Osmotic treatment caused cell membrane damage and reactive oxygen species (ROS) accumulation in the tree seedlings, but it also increased their antioxidant enzyme (superoxide dismutase, peroxidase, and catalase) activities and osmotic substances (soluble sugars, proline, and trehalose) content so as to adjust to osmotic stress conditions. A total of 1 789 differentially expressed genes (DEGs) were identified by transcriptome sequencing, of which 962 were up-regulated and 827 genes down-regulated. A series of stress-induced genes associated with signal transduction, ROS-scavenging, osmotic regulation, late embryogenesis abundant (LEA) protein, pentatricopeptide repeat-containing protein, and transcription factors' regulation were distinguishable. This detailed investigation of the stress-responsive genes and pathways provides new insight into molecular mechanism of abiotic stress response in P. massoniana. Further, this study's data can contribute to genetic engineering or molecular breeding efforts to enhance osmotic resistance in P. massoniana stands.","PeriodicalId":8912,"journal":{"name":"Biologia Plantarum","volume":null,"pages":null},"PeriodicalIF":0.8000,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Physiological and transcriptomic analysis of Pinus massoniana seedling response to osmotic stress\",\"authors\":\"H. Xu, X. Gao, C. Yu\",\"doi\":\"10.32615/BP.2021.016\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Masson pine (Pinus massoniana Lamb.) is an important tree species of high economic value in southern China, but osmotic stress threatens its growth and development. In this study, physiological measurements and RNA-Seq analysis were used to clarify the physiological and molecular responses of P. massoniana under osmotic stress. Osmotic treatment caused cell membrane damage and reactive oxygen species (ROS) accumulation in the tree seedlings, but it also increased their antioxidant enzyme (superoxide dismutase, peroxidase, and catalase) activities and osmotic substances (soluble sugars, proline, and trehalose) content so as to adjust to osmotic stress conditions. A total of 1 789 differentially expressed genes (DEGs) were identified by transcriptome sequencing, of which 962 were up-regulated and 827 genes down-regulated. A series of stress-induced genes associated with signal transduction, ROS-scavenging, osmotic regulation, late embryogenesis abundant (LEA) protein, pentatricopeptide repeat-containing protein, and transcription factors' regulation were distinguishable. This detailed investigation of the stress-responsive genes and pathways provides new insight into molecular mechanism of abiotic stress response in P. massoniana. Further, this study's data can contribute to genetic engineering or molecular breeding efforts to enhance osmotic resistance in P. massoniana stands.\",\"PeriodicalId\":8912,\"journal\":{\"name\":\"Biologia Plantarum\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.8000,\"publicationDate\":\"2021-05-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Biologia Plantarum\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.32615/BP.2021.016\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PLANT SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biologia Plantarum","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.32615/BP.2021.016","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
Physiological and transcriptomic analysis of Pinus massoniana seedling response to osmotic stress
Masson pine (Pinus massoniana Lamb.) is an important tree species of high economic value in southern China, but osmotic stress threatens its growth and development. In this study, physiological measurements and RNA-Seq analysis were used to clarify the physiological and molecular responses of P. massoniana under osmotic stress. Osmotic treatment caused cell membrane damage and reactive oxygen species (ROS) accumulation in the tree seedlings, but it also increased their antioxidant enzyme (superoxide dismutase, peroxidase, and catalase) activities and osmotic substances (soluble sugars, proline, and trehalose) content so as to adjust to osmotic stress conditions. A total of 1 789 differentially expressed genes (DEGs) were identified by transcriptome sequencing, of which 962 were up-regulated and 827 genes down-regulated. A series of stress-induced genes associated with signal transduction, ROS-scavenging, osmotic regulation, late embryogenesis abundant (LEA) protein, pentatricopeptide repeat-containing protein, and transcription factors' regulation were distinguishable. This detailed investigation of the stress-responsive genes and pathways provides new insight into molecular mechanism of abiotic stress response in P. massoniana. Further, this study's data can contribute to genetic engineering or molecular breeding efforts to enhance osmotic resistance in P. massoniana stands.
期刊介绍:
BIOLOGIA PLANTARUM is an international journal for experimental botany. It publishes original scientific papers and brief communications, reviews on specialized topics, and book reviews in plant physiology, plant biochemistry and biophysics, physiological anatomy, ecophysiology, genetics, molecular biology, cell biology, evolution, and pathophysiology. All papers should contribute substantially to the current level of plant science and combine originality with a potential general interest. The journal focuses on model and crop plants, as well as on under-investigated species.