{"title":"切根对栓皮栎幼苗形态特征及内源激素水平的影响","authors":"Ruoyi Ni, Hao Dou, Shuwen Bi, Tiantian Wang, Jin’e Quan, Xitian Yang","doi":"10.32604/phyton.2023.030689","DOIUrl":null,"url":null,"abstract":"The objective of this study was to investigate the effects of root cutting stress on the dynamic changes of endogenous hormone content and growth characteristics of <i>Quercus variabilis</i> roots, and to explore the physiological role of endogenous hormones in regulating root-crown interactions in the short term. The morphological characteristics and endogenous hormone contents of normal roots (no root cutting, CK) and cut roots (cut by 1/3 of the length of the main root, RP) were determined by liquid chromatography, which was combined with mass spectrometry at different levels of different developmental stages. The results showed that the root growth indexes and root endogenous hormones in the RP group were superior to those in the CK group. Through comprehensive analysis of endogenous hormones, it was found that the crosstalk of IAA, JA, ABA and SA could activate the root growth defense. After the root cutting treatment, the root growth of <i>Quercus variabilis</i> seedlings could compensate for the inhibition of taproot growth by promoting lateral root growth. The growth and development of compensatory lateral roots contribute to the increase the total root length of plants, thus promoting the absorption of water and nutrients. It is speculated that plant hormones may be the key factors affecting their development, but this is not only related to the content of a single hormone, but more importantly, it is the interaction between various hormones.","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effects of Root Cutting on Morphological Characteristics and Endogenous Hormone Levels of Quercus variabilis Seedlings\",\"authors\":\"Ruoyi Ni, Hao Dou, Shuwen Bi, Tiantian Wang, Jin’e Quan, Xitian Yang\",\"doi\":\"10.32604/phyton.2023.030689\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The objective of this study was to investigate the effects of root cutting stress on the dynamic changes of endogenous hormone content and growth characteristics of <i>Quercus variabilis</i> roots, and to explore the physiological role of endogenous hormones in regulating root-crown interactions in the short term. The morphological characteristics and endogenous hormone contents of normal roots (no root cutting, CK) and cut roots (cut by 1/3 of the length of the main root, RP) were determined by liquid chromatography, which was combined with mass spectrometry at different levels of different developmental stages. The results showed that the root growth indexes and root endogenous hormones in the RP group were superior to those in the CK group. Through comprehensive analysis of endogenous hormones, it was found that the crosstalk of IAA, JA, ABA and SA could activate the root growth defense. After the root cutting treatment, the root growth of <i>Quercus variabilis</i> seedlings could compensate for the inhibition of taproot growth by promoting lateral root growth. The growth and development of compensatory lateral roots contribute to the increase the total root length of plants, thus promoting the absorption of water and nutrients. It is speculated that plant hormones may be the key factors affecting their development, but this is not only related to the content of a single hormone, but more importantly, it is the interaction between various hormones.\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2023-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.32604/phyton.2023.030689\",\"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":"1085","ListUrlMain":"https://doi.org/10.32604/phyton.2023.030689","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Effects of Root Cutting on Morphological Characteristics and Endogenous Hormone Levels of Quercus variabilis Seedlings
The objective of this study was to investigate the effects of root cutting stress on the dynamic changes of endogenous hormone content and growth characteristics of Quercus variabilis roots, and to explore the physiological role of endogenous hormones in regulating root-crown interactions in the short term. The morphological characteristics and endogenous hormone contents of normal roots (no root cutting, CK) and cut roots (cut by 1/3 of the length of the main root, RP) were determined by liquid chromatography, which was combined with mass spectrometry at different levels of different developmental stages. The results showed that the root growth indexes and root endogenous hormones in the RP group were superior to those in the CK group. Through comprehensive analysis of endogenous hormones, it was found that the crosstalk of IAA, JA, ABA and SA could activate the root growth defense. After the root cutting treatment, the root growth of Quercus variabilis seedlings could compensate for the inhibition of taproot growth by promoting lateral root growth. The growth and development of compensatory lateral roots contribute to the increase the total root length of plants, thus promoting the absorption of water and nutrients. It is speculated that plant hormones may be the key factors affecting their development, but this is not only related to the content of a single hormone, but more importantly, it is the interaction between various hormones.
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.