当前位置: X-MOL 学术Nord. J. Bot. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Functional aspects of solanaceae trichomes in heavy metal detoxification
Nordic Journal of Botany ( IF 0.9 ) Pub Date : 2021-05-24 , DOI: 10.1111/njb.03171
Monika Koul 1 , Lebin Thomas 1 , Kapudeep Karmakar 2
Affiliation  

Solanaceous plants are ubiquitous and are able to colonize degraded, abandoned and metal polluted habitats. Members of the family have evolved interesting extrinsic and intrinsic traits to combat the metal toxicity in multiple ways. Indumentum constituted mostly of trichome layer provides structural defense for both biotic stress (herbivory, oviposition, microbial pathogenesis) and abiotic stress (like drought, heat, freezing, photooxidation and UV radiation). Plants with heavy metal tolerance can accumulate toxic heavy metals in their trichomes as a part of their elemental defense detoxification strategy. Apart from the canonical functions, trichomes support ion and metal homeostasis, including the sequestration, compartmentalization, accumulation and excretion of heavy metals in many ways. The trichomes in Solanaceae are known to have a key role in the detoxification of Cd, Ni, Pb and Zn. Expressed sequence tag (EST)-based large-scale gene analysis in tobacco has indicated that trichomes are biologically active and stress–responsive structures. Trichome secretions and exudates also play an active role in metal detoxification process. Given that trichomes provide chemical defense from heavy metal stresses in the form of sequestration and extrusion, the plants having trichomes have potential role in remediation of contaminated soils. Solanaceae trichomes can serve as important model tissues that can be modified to attenuate metal toxicity, serve as environmental indicators and enhance phytoremediation potential of the family.

中文翻译:

茄科毛状体在重金属排毒中的功能方面

茄科植物无处不在,能够在退化,废弃和金属污染的栖息地定居。该家族的成员已经进化出有趣的外在和内在特性,以多种方式与金属毒性作斗争。主要由毛状体层构成的工业金属为生物胁迫(食草,产卵,微生物发病机理)和非生物胁迫(如干旱,高温,冰冻,光氧化和紫外线辐射)提供结构防御。具有重金属耐受性的植物可以在其毛状体中积累有毒重金属,这是其基本防御排毒策略的一部分。除规范功能外,毛状体还支持离子和金属稳态,包括以多种方式隔离,分隔,积累和排泄重金属。茄科的毛状体在Cd,Ni,Pb和Zn的解毒中起关键作用。烟草中基于表达序列标签(EST)的大规模基因分析表明,毛线虫具有生物活性和胁迫响应结构。绒毛虫的分泌物和分泌物在金属排毒过程中也起着积极的作用。考虑到毛状体以螯合和挤压的形式提供了对重金属胁迫的化学防御作用,具有毛状体的植物在污染土壤的修复中具有潜在作用。茄科毛状体可以用作重要的模型组织,可以对其进行修饰以减弱金属毒性,可以用作环境指示剂并增强该家族的植物修复潜力。烟草中基于表达序列标签(EST)的大规模基因分析表明,毛线虫具有生物活性和胁迫响应结构。绒毛虫的分泌物和分泌物在金属排毒过程中也起着积极的作用。考虑到毛状体以螯合和挤压的形式提供了对重金属胁迫的化学防御作用,具有毛状体的植物在污染土壤的修复中具有潜在作用。茄科毛状体可以用作重要的模型组织,可以对其进行修饰以减弱金属毒性,可以用作环境指示剂并增强该家族的植物修复潜力。烟草中基于表达序列标签(EST)的大规模基因分析表明,毛线虫具有生物活性和胁迫响应结构。绒毛虫的分泌物和分泌物在金属排毒过程中也起着积极的作用。考虑到毛状体以螯合和挤压的形式提供了对重金属胁迫的化学防御作用,具有毛状体的植物在污染土壤的修复中具有潜在作用。茄科毛状体可以用作重要的模型组织,可以对其进行修饰以减弱金属毒性,可以用作环境指示剂并增强该家族的植物修复潜力。考虑到毛状体以螯合和挤压的形式提供了对重金属胁迫的化学防御作用,具有毛状体的植物在污染土壤的修复中具有潜在作用。茄科毛状体可以用作重要的模型组织,可以对其进行修饰以减弱金属毒性,可以用作环境指示剂并增强该家族的植物修复潜力。考虑到毛状体以螯合和挤压的形式提供了对重金属胁迫的化学防御作用,具有毛状体的植物在污染土壤的修复中具有潜在作用。茄科毛状体可以用作重要的模型组织,可以对其进行修饰以减弱金属毒性,可以用作环境指示剂并增强该家族的植物修复潜力。
更新日期:2021-05-25
down
wechat
bug