Lingling Zhu, Andrew P. Scafaro, Elizabeth Vierling, Marilyn C. Ball, Bradley C. Posch, Frederike Stock, Owen K. Atkin
{"title":"热带亚热带雨林树种秀丽隐杆线虫的耐热性：生理热稳定性和生物化学的时间依赖性动态响应。","authors":"Lingling Zhu, Andrew P. Scafaro, Elizabeth Vierling, Marilyn C. Ball, Bradley C. Posch, Frederike Stock, Owen K. Atkin","doi":"10.1111/nph.19356","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>\n </p><ul>\n \n <li>Heat stress interrupts physiological thermostability and triggers biochemical responses that are essential for plant survival. However, there is limited knowledge on the speed plants adjust to heat in hours and days, and which adjustments are crucial.</li>\n \n <li>Tropical–subtropical rainforest tree species (<i>Polyscias elegans</i>) were heated at 40°C for 5 d, before returning to 25°C for 13 d of recovery. Leaf heat tolerance was quantified using the temperature at which minimal chl <i>a</i> fluorescence sharply rose (<i>T</i><sub>crit</sub>). <i>T</i><sub>crit</sub>, metabolites, heat shock protein (HSP) abundance and membrane lipid fatty acid (FA) composition were quantified.</li>\n \n <li><i>T</i><sub>crit</sub> increased by 4°C (48–52°C) within 2 h of 40°C exposure, along with rapid accumulation of metabolites and HSPs. By contrast, it took > 2 d for FA composition to change. At least 2 d were required for <i>T</i><sub>crit</sub>, HSP90, HSP70 and FAs to return to prestress levels.</li>\n \n <li>The results highlight the multi-faceted response of <i>P</i>. <i>elegans</i> to heat stress, and how this response varies over the scale of hours to days, culminating in an increased level of photosynthetic heat tolerance. These responses are important for survival of plants when confronted with heat waves amidst ongoing global climate change.</li>\n </ul>\n </div>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"241 2","pages":"715-731"},"PeriodicalIF":8.3000,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Heat tolerance of a tropical–subtropical rainforest tree species Polyscias elegans: time-dependent dynamic responses of physiological thermostability and biochemistry\",\"authors\":\"Lingling Zhu, Andrew P. Scafaro, Elizabeth Vierling, Marilyn C. Ball, Bradley C. Posch, Frederike Stock, Owen K. Atkin\",\"doi\":\"10.1111/nph.19356\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n <p>\\n </p><ul>\\n \\n <li>Heat stress interrupts physiological thermostability and triggers biochemical responses that are essential for plant survival. However, there is limited knowledge on the speed plants adjust to heat in hours and days, and which adjustments are crucial.</li>\\n \\n <li>Tropical–subtropical rainforest tree species (<i>Polyscias elegans</i>) were heated at 40°C for 5 d, before returning to 25°C for 13 d of recovery. Leaf heat tolerance was quantified using the temperature at which minimal chl <i>a</i> fluorescence sharply rose (<i>T</i><sub>crit</sub>). <i>T</i><sub>crit</sub>, metabolites, heat shock protein (HSP) abundance and membrane lipid fatty acid (FA) composition were quantified.</li>\\n \\n <li><i>T</i><sub>crit</sub> increased by 4°C (48–52°C) within 2 h of 40°C exposure, along with rapid accumulation of metabolites and HSPs. By contrast, it took > 2 d for FA composition to change. At least 2 d were required for <i>T</i><sub>crit</sub>, HSP90, HSP70 and FAs to return to prestress levels.</li>\\n \\n <li>The results highlight the multi-faceted response of <i>P</i>. <i>elegans</i> to heat stress, and how this response varies over the scale of hours to days, culminating in an increased level of photosynthetic heat tolerance. These responses are important for survival of plants when confronted with heat waves amidst ongoing global climate change.</li>\\n </ul>\\n </div>\",\"PeriodicalId\":214,\"journal\":{\"name\":\"New Phytologist\",\"volume\":\"241 2\",\"pages\":\"715-731\"},\"PeriodicalIF\":8.3000,\"publicationDate\":\"2023-11-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"New Phytologist\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1111/nph.19356\",\"RegionNum\":1,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"PLANT SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"New Phytologist","FirstCategoryId":"99","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/nph.19356","RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
Heat tolerance of a tropical–subtropical rainforest tree species Polyscias elegans: time-dependent dynamic responses of physiological thermostability and biochemistry
Heat stress interrupts physiological thermostability and triggers biochemical responses that are essential for plant survival. However, there is limited knowledge on the speed plants adjust to heat in hours and days, and which adjustments are crucial.
Tropical–subtropical rainforest tree species (Polyscias elegans) were heated at 40°C for 5 d, before returning to 25°C for 13 d of recovery. Leaf heat tolerance was quantified using the temperature at which minimal chl a fluorescence sharply rose (Tcrit). Tcrit, metabolites, heat shock protein (HSP) abundance and membrane lipid fatty acid (FA) composition were quantified.
Tcrit increased by 4°C (48–52°C) within 2 h of 40°C exposure, along with rapid accumulation of metabolites and HSPs. By contrast, it took > 2 d for FA composition to change. At least 2 d were required for Tcrit, HSP90, HSP70 and FAs to return to prestress levels.
The results highlight the multi-faceted response of P. elegans to heat stress, and how this response varies over the scale of hours to days, culminating in an increased level of photosynthetic heat tolerance. These responses are important for survival of plants when confronted with heat waves amidst ongoing global climate change.
期刊介绍：
New Phytologist is an international electronic journal published 24 times a year. It is owned by the New Phytologist Foundation, a non-profit-making charitable organization dedicated to promoting plant science. The journal publishes excellent, novel, rigorous, and timely research and scholarship in plant science and its applications. The articles cover topics in five sections: Physiology & Development, Environment, Interaction, Evolution, and Transformative Plant Biotechnology. These sections encompass intracellular processes, global environmental change, and encourage cross-disciplinary approaches. The journal recognizes the use of techniques from molecular and cell biology, functional genomics, modeling, and system-based approaches in plant science. Abstracting and Indexing Information for New Phytologist includes Academic Search, AgBiotech News & Information, Agroforestry Abstracts, Biochemistry & Biophysics Citation Index, Botanical Pesticides, CAB Abstracts®, Environment Index, Global Health, and Plant Breeding Abstracts, and others.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
