Effect of Severe Salt Stress on Respiratory and Biochemical Parameters in Legumes With Differential Nodulation Form

IF 3.7 2区 农林科学 Q1 AGRONOMY
José Ortiz, Carolina Sanhueza, Pablo Yaupi, Fabián Plaza, Catalina Castro, Mario Paniagua-López, Teodoro Coba de la Peña, Miguel López-Gómez, Luisa Bascuñán-Godoy, Néstor Fernández Del-Saz
{"title":"Effect of Severe Salt Stress on Respiratory and Biochemical Parameters in Legumes With Differential Nodulation Form","authors":"José Ortiz,&nbsp;Carolina Sanhueza,&nbsp;Pablo Yaupi,&nbsp;Fabián Plaza,&nbsp;Catalina Castro,&nbsp;Mario Paniagua-López,&nbsp;Teodoro Coba de la Peña,&nbsp;Miguel López-Gómez,&nbsp;Luisa Bascuñán-Godoy,&nbsp;Néstor Fernández Del-Saz","doi":"10.1111/jac.70024","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Legumes are among the most utilised agronomic plant species due to their symbiotic association with N<sub>2</sub>-fixing bacteria. Since N<sub>2</sub> fixation entails high ATP cost, salt stress disrupts N<sub>2</sub> fixation in the symbiont, but increases the production of osmolytes and antioxidant systems in the host plant. This results in competition for C allocation between osmoprotection in the host and continued supply to the symbiont for N acquisition, which may result in different plant responses to salinity. Two-nodule types of plant species with contrasting carbon requirements for organic N<sub>2</sub> fixation can be found within legume species; determinate and indeterminate. In this study, we tested responses of respiratory carbon metabolism, nitrogen assimilation and antioxidant machinery in leaves and roots of <i>Phaseolus vulgaris</i> (determinate nodules) and <i>Pisum sativum</i> (indeterminate nodules) 24 and 72 h after salt treatment (300 mM of NaCl). In <i>P. sativum,</i> we observed that nitrogenase activity was maintained at 24 h, but showed a strong decrease at 72 h together with cytochrome activity. On contrast, in <i>P. vulgaris,</i> respiration rates were maintained by an enhanced antioxidant activity under salinity although at the expense of nodule metabolism. Despite of the severity of the salt stress for N<sub>2</sub> fixation, both species showed similar mechanisms to cope with salinity, like the maintenance of alternative respiration and increased antioxidant defence, that are worthy to be tested in the long term under field conditions.</p>\n </div>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 1","pages":""},"PeriodicalIF":3.7000,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Agronomy and Crop Science","FirstCategoryId":"97","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/jac.70024","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRONOMY","Score":null,"Total":0}
引用次数: 0

Abstract

Legumes are among the most utilised agronomic plant species due to their symbiotic association with N2-fixing bacteria. Since N2 fixation entails high ATP cost, salt stress disrupts N2 fixation in the symbiont, but increases the production of osmolytes and antioxidant systems in the host plant. This results in competition for C allocation between osmoprotection in the host and continued supply to the symbiont for N acquisition, which may result in different plant responses to salinity. Two-nodule types of plant species with contrasting carbon requirements for organic N2 fixation can be found within legume species; determinate and indeterminate. In this study, we tested responses of respiratory carbon metabolism, nitrogen assimilation and antioxidant machinery in leaves and roots of Phaseolus vulgaris (determinate nodules) and Pisum sativum (indeterminate nodules) 24 and 72 h after salt treatment (300 mM of NaCl). In P. sativum, we observed that nitrogenase activity was maintained at 24 h, but showed a strong decrease at 72 h together with cytochrome activity. On contrast, in P. vulgaris, respiration rates were maintained by an enhanced antioxidant activity under salinity although at the expense of nodule metabolism. Despite of the severity of the salt stress for N2 fixation, both species showed similar mechanisms to cope with salinity, like the maintenance of alternative respiration and increased antioxidant defence, that are worthy to be tested in the long term under field conditions.

求助全文
约1分钟内获得全文 求助全文
来源期刊
Journal of Agronomy and Crop Science
Journal of Agronomy and Crop Science 农林科学-农艺学
CiteScore
8.20
自引率
5.70%
发文量
54
审稿时长
7.8 months
期刊介绍: The effects of stress on crop production of agricultural cultivated plants will grow to paramount importance in the 21st century, and the Journal of Agronomy and Crop Science aims to assist in understanding these challenges. In this context, stress refers to extreme conditions under which crops and forages grow. The journal publishes original papers and reviews on the general and special science of abiotic plant stress. Specific topics include: drought, including water-use efficiency, such as salinity, alkaline and acidic stress, extreme temperatures since heat, cold and chilling stress limit the cultivation of crops, flooding and oxidative stress, and means of restricting them. Special attention is on research which have the topic of narrowing the yield gap. The Journal will give preference to field research and studies on plant stress highlighting these subsections. Particular regard is given to application-oriented basic research and applied research. The application of the scientific principles of agricultural crop experimentation is an essential prerequisite for the publication. Studies based on field experiments must show that they have been repeated (at least three times) on the same organism or have been conducted on several different varieties.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信