Muhammad Ahsan Altaf, Huangying Shu, Naveed Mushtaq, Huizhen Fu, Xu Lu, Shanhan Cheng, Zhiwei Wang
{"title":"Melatonin modified root architecture system and accelerated mineral nutrient concentration of different pepper species under vanadium toxicity","authors":"Muhammad Ahsan Altaf, Huangying Shu, Naveed Mushtaq, Huizhen Fu, Xu Lu, Shanhan Cheng, Zhiwei Wang","doi":"10.1016/j.hpj.2024.12.006","DOIUrl":null,"url":null,"abstract":"Heavy metal contamination has adversely affected crop productivity around the world. Vanadium (V) toxicity is a significant environmental factor that lowers agricultural productivity by inhibiting plant development, diminishing nutrient uptake, and damaging root morphology. Melatonin (ME) is a well-known powerful antioxidant and multifunctional molecule that improves the resilience of plants against environmental stressors. In this work, we investigated the response of different pepper species (<ce:italic>Capsicum annuum</ce:italic> L. (CA), <ce:italic>C. baccatum</ce:italic> L. (CB), <ce:italic>C. pubescens</ce:italic> Ruiz & Pav. (CP) to V toxicity as well as the possible roles of ME in enhancing V stress tolerance. Pepper roots were pretreated with ME (5 to μmol. L<ce:sup loc=\"post\">−1</ce:sup>) for three days, then V (30 mg. L<ce:sup loc=\"post\">−1</ce:sup>) was applied for 2 weeks as a stress treatment. The findings showed that plants pretreated with ME exposed to V stress had improved root activity and biomass production. The root morphology and mineral nutrient accumulation of the pepper species were greatly improved by ME application. In addition, ME treatments lowered leaf V concentrations by lowering V translocation from root to shoot. In a nutshell, ME treatment modified root architecture system, increased concentration of mineral nutrient, and reduced V accumulation of pepper species under V stress.","PeriodicalId":13178,"journal":{"name":"Horticultural Plant Journal","volume":"240 1","pages":""},"PeriodicalIF":6.2000,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Horticultural Plant Journal","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1016/j.hpj.2024.12.006","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"HORTICULTURE","Score":null,"Total":0}
引用次数: 0
Abstract
Heavy metal contamination has adversely affected crop productivity around the world. Vanadium (V) toxicity is a significant environmental factor that lowers agricultural productivity by inhibiting plant development, diminishing nutrient uptake, and damaging root morphology. Melatonin (ME) is a well-known powerful antioxidant and multifunctional molecule that improves the resilience of plants against environmental stressors. In this work, we investigated the response of different pepper species (Capsicum annuum L. (CA), C. baccatum L. (CB), C. pubescens Ruiz & Pav. (CP) to V toxicity as well as the possible roles of ME in enhancing V stress tolerance. Pepper roots were pretreated with ME (5 to μmol. L−1) for three days, then V (30 mg. L−1) was applied for 2 weeks as a stress treatment. The findings showed that plants pretreated with ME exposed to V stress had improved root activity and biomass production. The root morphology and mineral nutrient accumulation of the pepper species were greatly improved by ME application. In addition, ME treatments lowered leaf V concentrations by lowering V translocation from root to shoot. In a nutshell, ME treatment modified root architecture system, increased concentration of mineral nutrient, and reduced V accumulation of pepper species under V stress.
期刊介绍:
Horticultural Plant Journal (HPJ) is an OPEN ACCESS international journal. HPJ publishes research related to all horticultural plants, including fruits, vegetables, ornamental plants, tea plants, and medicinal plants, etc. The journal covers all aspects of horticultural crop sciences, including germplasm resources, genetics and breeding, tillage and cultivation, physiology and biochemistry, ecology, genomics, biotechnology, plant protection, postharvest processing, etc. Article types include Original research papers, Reviews, and Short communications.