Soil microbiota and plant invasions: current and future

Fu, Wei; Wang, Ning; Pang, Fang; Huang, Yulong; Wu, Jun; Qi, Shanshan; Dai, Zhicong; Du, Daolin

doi:10.17520/biods.2017071

Cited by 2 publications

(1 citation statement)

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“…When invasive plants establish themselves in a new habitat, they tend to accumulate beneficial microorganisms (mainly comprising AMF and Bacillus) in their rhizosphere to promote their growth and facilitate their invasion in response to abiotic factors (i.e., nutrient deficiencies) and biotic factors (i.e., feeding by generalist insects) (Meisner et al, 2013;Fu et al, 2017;Mohanty et al, 2018). In this present study, we investigated the common AMF and Bacillus present in the rhizosphere soil of both the invasive plant (A. adenophora) and native plant (R. amethystoides) and the explored the effect of single microbes versus co-culture on the competitive growth of the two plants.…”

Section: Discussionmentioning

confidence: 99%

Effects of Septoglomus constrictum and Bacillus cereus on the competitive growth of Ageratina adenophora

Chen

Yang

et al. 2023

Front. Microbiol.

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Beneficial microorganisms play a pivotal role in the invasion process of exotic plants, including arbuscular mycorrhizal fungi (AMF) and Bacillus. However, limited research exists on the synergistic influence of AMF and Bacillus on the competition between both invasive and native plants. In this study, pot cultures of Ageratina adenophora monoculture, Rabdosia amethystoides monoculture, and A. adenophora and R. amethystoides mixture were used to investigate the effects of dominant AMF (Septoglomus constrictum, SC) and Bacillus cereus (BC), and the co-inoculation of BC and SC on the competitive growth of A. adenophora. The results showed that inoculation with BC, SC, and BC + SC significantly increased the biomass of A. adenophora by 14.77, 112.07, and 197.74%, respectively, in the competitive growth between A. adenophora and R. amethystoides. Additionally, inoculation with BC increased the biomass of R. amethystoides by 185.07%, while inoculation with SC or BC + SC decreased R. amethystoides biomass by 37.31 and 59.70% compared to the uninoculated treatment. Inoculation with BC significantly increased the nutrient contents in the rhizosphere soil of both plants and promoted their growth. Inoculation with SC or SC + BC notably increased the nitrogen and phosphorus contents of A. adenophora, therefore enhancing its competitiveness. Compared with single inoculation, dual inoculation with SC and BC increased AMF colonization rate and Bacillus density, indicating that SC and BC can form a synergistic effect to further enhance the growth and competitiveness of A. adenophora. This study reveals the distinct role of S. constrictum and B. cereus during the invasion of A. adenophora, and provide new clues to the underlying mechanisms of interaction between invasive plant, AMF and Bacillus.

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Section: Discussionmentioning

confidence: 99%