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首页> 外文期刊>Journal of Experimental Botany >Interaction between selected bacterial strains and Arabidopsis halleri modulates shoot proteome and cadmium and zinc accumulation
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Interaction between selected bacterial strains and Arabidopsis halleri modulates shoot proteome and cadmium and zinc accumulation

机译：选定的细菌菌株与拟南芥之间的相互作用调节芽蛋白质组和镉和锌的积累

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摘要

The effects of plant-microbe interactions between the hyperaccumulator Arabidopsis halleri and eight bacterial strains, isolated from the rhizosphere of A. halleri plants grown in a cadmium- and zinc-contaminated site, were analysed for shoot metal accumulation, shoot proteome, and the transcription of genes involved in plant metal homeostasis and hyperaccumulation. Cadmium and zinc concentrations were lower in the shoots of plants cultivated in the presence of these metals plus the selected bacterial strains compared with plants grown solely with these metals or, as previously reported, with plants grown with these metals plus the autochthonous rhizosphere-derived microorganisms. The shoot proteome of plants cultivated in the presence of these selected bacterial strains plus metals, showed an increased abundance of photosynthesis- and abiotic stress-related proteins (e.g. subunits of the photosynthetic complexes, Rubisco, superoxide dismutase, and malate dehydrogenase) counteracted by a decreased amount of plant defence-related proteins (e.g. endochitinases, vegetative storage proteins, and beta-glucosidase). The transcription of several homeostasis genes was modulated by the microbial communities and by Cd and Zn content in the shoot. Altogether these results highlight the importance of plant-microbe interactions in plant protein expression and metal accumulation and emphasize the possibility of exploiting microbial consortia for increasing or decreasing shoot metal content.
机译：分析了超积累拟南芥哈里发菌与从镉和锌污染位点生长的哈来根草根际分离出的八种细菌之间的植物-微生物相互作用的影响，分析了它们的芽金属积累，芽蛋白质组和转录。植物金属稳态和过度积累相关基因的鉴定与仅由这些金属或自生根际微生物衍生的植物相比，在仅存在这些金属和所选择的细菌菌株的情况下培养的植物的芽中镉和锌的浓度较低。在这些选定的细菌菌株加金属的条件下种植的植物的茎蛋白质组显示，与光合作用和非生物胁迫相关的蛋白质（例如，光合复合物的亚基，Rubisco，超氧化物歧化酶和苹果酸脱氢酶）的丰度增加了。与植物防御相关的蛋白质（例如内切壳多糖酶，营养贮藏蛋白和β-葡萄糖苷酶）数量减少。几种动态平衡基因的转录受微生物群落和枝条中镉和锌含量的调节。总之，这些结果突出了植物-微生物相互作用在植物蛋白表达和金属积累中的重要性，并强调了利用微生物聚生体来增加或减少枝条金属含量的可能性。

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