{"title":"Melatonin mitigation of herbicide-induced injury to guar crop improves nodulation","authors":"Akbar Aliverdi, Yalda Khorshidvand","doi":"10.1016/j.rhisph.2024.100866","DOIUrl":null,"url":null,"abstract":"<div><p>The guar plant, or cluster bean, forms a weak symbiosis with rhizobia, and it is sensitive to herbicides. We hypothesized that application of melatonin to guar seeds, leaves, or both protect against metabolic injury from eight herbicides, and strengthening the symbiosis. Imazethapyr and 2,4-DB did not injure guar and its rhizobium partner. Root nodulation was severely damaged with pendimethalin and less with bentazon. A reduction in guar's total dry weight, which ranged from 14% with bentazon to 28% with bromoxynil, was observed, indicating metabolic stress. When no herbicide was applied, seeds coated with melatonin had no effect. When herbicides were applied, it partially mitigated herbicide-induced injury. Foliar application of melatonin protected guar completely against bentazon, bromoxynil, and oxyfluorfen, protected nodulation.</p></div>","PeriodicalId":48589,"journal":{"name":"Rhizosphere","volume":null,"pages":null},"PeriodicalIF":3.4000,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Rhizosphere","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2452219824000193","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
The guar plant, or cluster bean, forms a weak symbiosis with rhizobia, and it is sensitive to herbicides. We hypothesized that application of melatonin to guar seeds, leaves, or both protect against metabolic injury from eight herbicides, and strengthening the symbiosis. Imazethapyr and 2,4-DB did not injure guar and its rhizobium partner. Root nodulation was severely damaged with pendimethalin and less with bentazon. A reduction in guar's total dry weight, which ranged from 14% with bentazon to 28% with bromoxynil, was observed, indicating metabolic stress. When no herbicide was applied, seeds coated with melatonin had no effect. When herbicides were applied, it partially mitigated herbicide-induced injury. Foliar application of melatonin protected guar completely against bentazon, bromoxynil, and oxyfluorfen, protected nodulation.
RhizosphereAgricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
5.70
自引率
8.10%
发文量
155
审稿时长
29 days
期刊介绍：
Rhizosphere aims to advance the frontier of our understanding of plant-soil interactions. Rhizosphere is a multidisciplinary journal that publishes research on the interactions between plant roots, soil organisms, nutrients, and water. Except carbon fixation by photosynthesis, plants obtain all other elements primarily from soil through roots.
We are beginning to understand how communications at the rhizosphere, with soil organisms and other plant species, affect root exudates and nutrient uptake. This rapidly evolving subject utilizes molecular biology and genomic tools, food web or community structure manipulations, high performance liquid chromatography, isotopic analysis, diverse spectroscopic analytics, tomography and other microscopy, complex statistical and modeling tools.
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