Academic Journal

The rhizosphere microbiome improves the adaptive capabilities of plants under high soil cadmium conditions

التفاصيل البيبلوغرافية
العنوان: The rhizosphere microbiome improves the adaptive capabilities of plants under high soil cadmium conditions
المؤلفون: Wenjun Fan, Jinmei Deng, Li Shao, Shiming Jiang, Tangfu Xiao, Weimin Sun, Enzong Xiao
المصدر: Frontiers in Plant Science, Vol 13 (2022)
بيانات النشر: Frontiers Media S.A., 2022.
سنة النشر: 2022
المجموعة: LCC:Plant culture
مصطلحات موضوعية: rhizosphere microbiome, cadmium, Sedum alfredii, assemblage, fitness, Plant culture, SB1-1110
الوصف: Cadmium (Cd) contamination of agricultural soils poses a potential public health issue for humans. Phytoremediation-based accumulating plants are an effective and sustainable technology for Cadmium remediation of contaminated agricultural soil. The rhizosphere microbiome can promote the growth and Cadmium accumulation in hyperaccumulators, but its taxonomic and functional traits remain elusive. The present study used two ecotypes of Sedum alfredii, an accumulating ecotype (AE) and a non-accumulating ecotype (NAE), as model plants to investigate the rhizosphere microbiome assemblages and influence on plant growth under high cadmium conditions. Our results showed that distinct root microbiomes assembled in association with both ecotypes of S. alfredii and that the assemblages were based largely on the lifestyles of the two ecotypes. In addition, we demonstrated that the functions of the microbes inhabiting the rhizosphere soils were closely associated with root-microbe interactions in both ecotypes of S. alfredii. Importantly, our results also demonstrated that the rhizosphere microbiome assembled in the AE rhizosphere soils contributed to plant growth and cadmium uptake under high cadmium conditions through functions such as nitrogen fixation, phosphorus solubilization, indole acetic acid (IAA) synthesis, and siderophore metabolism. However, this phenomenon was not clearly observed in the NAE. Our results suggest that the rhizosphere microbiome plays important roles in biogeochemical nutrient and metal cycling that can contribute to host plant fitness.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1664-462X
Relation: https://www.frontiersin.org/articles/10.3389/fpls.2022.914103/full; https://doaj.org/toc/1664-462X
DOI: 10.3389/fpls.2022.914103
URL الوصول: https://doaj.org/article/74f39a2d00ec41aa89f5c48e02033862
رقم الانضمام: edsdoj.74f39a2d00ec41aa89f5c48e02033862
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:1664462X
DOI:10.3389/fpls.2022.914103