Soil: Microbial Ecology

Wigginton, Sara; Amador, José A.

doi:10.1201/9780429445552-39

Cited by 1 publication

(2 citation statements)

References 121 publications

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“…The structures and diversities of microbial community are meaningful indicators for evaluating ecosystem stability ( Chapin et al, 2011 ; Romaniuk et al, 2011 ; Wigginton and Amador, 2020 ). Several environmental factors affect soil microbial community structure and diversity, including primarily climatic, phytic, and soil-specific factors ( Marschner et al, 2001 ; Yang et al, 2019 ; Wang et al, 2021 ).…”

Section: Discussionmentioning

confidence: 99%

“…Rhizosphere microorganisms are often considered “the second plant genome” because these microbes are so crucial for plant nutrition, growth, development, yield, secondary metabolite biosynthesis, and defense ( Berendsen et al, 2012 ; Chaparro et al, 2012 ; Philippot et al, 2013 ; Qu et al, 2020 ; Wigginton and Amador, 2020 ). Both the community structure and diversity of rhizomicroorganisms are impacted by soil environmental conditions, including soil physicochemical properties, plant root exudates, and accumulated humus ( Delgado-Baquerizo et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

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Rhizobacterial compositions and their relationships with soil properties and medicinal bioactive ingredients in Cinnamomum migao

Yang²,

Tong³

et al. 2023

Front. Microbiol.

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IntroductionRhizobacterial communities and their metabolites can affect plant growth, development, and stress resistance, as well as the biosynthesis and accumulation of bioactive compounds in medicinal plants. This relationship has been well-characterized in many medicinal herbs, although much less commonly in medicinal trees.MethodsHere, we analyzed the composition and structure of Cinnamomum migao rhizobacterial communities across nine growing regions in Yunnan, Guizhou and Guangxi, China, as well as differences in soil properties and fruit bioactive compounds.ResultsResults showed that the C. migao rhizobacterial communities exhibited high species richness, but location-specific differences in structure. Site-specific differences in soil properties and bioactive compounds were also observed. Furthermore, rhizobacterial community compositions were correlated with both soil properties and fruit bioactive compounds, metabolism-related functions were most common in C. migao rhizobacteria.DiscussionSeveral bacterial genera, including Acidothermus, Acidibacter, Bryobacter, Candidatus_Solibacter, and Acidimicrobiales, potentially promote the biosynthesis and accumulation of 1,8-cineole, cypressene, limonene, and α-terpineol, Nitrospira and Alphaproteobacteria may play an inhibitory role. Finally, our results emphasized the critical role that soil pH and nitrogen levels play in driving rhizobacterial community structure, and specific functional bacteria can also counteract with soil properties, Acidibacter and Nitrospira can affect soil pH and nitrogen effectiveness. Overall, this study provides additional insight into the complex correlation of rhizosphere microorganisms with bioactive ingredients and soil properties of medicinal plants.

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