Smooth cordgrass engineers salt marsh soil microbiomes

It is becoming increasingly evident that soil microbiomes are influenced by plants, but understanding of causal factors governing interactions remains elusive. Lumibao et al. conducted a field‐scale common garden experiment showing that the diversity and composition of salt marsh rhizosphere microbial communities vary according to genotypic and associated functional trait differences in smooth cordgrass (Spartina alterniflora ). Fungal communities were found to be much more responsive to cordgrass features than bacterial communities, which were more strongly influenced by prevailing abiotic conditions, including soil properties shaped by smooth cordgrass. These results highlight the relevance of plant intraspecific variation in determining plant–microbe interactions, particularly in naturally depauperate ecosystems like salt marshes that are dominated by landform engineers.

Lumibao, C. Y., et al. 2020. Rhizosphere microbial communities reflect genotypic and trait variation in a salt marsh ecosystem engineer. American Journal of Botany https://doi.org/10.1002/ajb2.1497

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快速浏览2020年6月的重要文章。

光滑的草草工程师盐沼土壤微生物组

越来越明显的是，土壤微生物组受到植物的影响，但是对控制相互作用的因果关系的了解仍然难以捉摸。Lumibao等。进行了田间规模的公共花园实验，结果表明，盐沼根际微生物群落的多样性和组成根据光滑草皮草的基因型和相关功能性状差异而异（互花米草））。人们发现，真菌群落对草皮的反应要比细菌群落要好得多，细菌群落受主要非生物条件（包括光滑草皮塑造的土壤特性）的影响更大。这些结果突显了植物种内变异在确定植物与微生物相互作用中的相关性，特别是在自然退化的生态系统（如盐沼）中，地貌工程师占主导地位。

卢米宝，CY，等。2020年。盐沼生态系统工程师的根际微生物群落反映了基因型和性状的变化。美国植物学杂志https://doi.org/10.1002/ajb2.1497