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First insights into diversity and potential metabolic pathways of bacterial and fungal communities in the rhizosphere of Argemone mexicana L. (Papaveraceae) from the water-level- fluctuation zone of Wudongde Reservoir of the upper Yangtze river, China
Zhou, Lanfang1,3; Wu, Shengjun2; Ma, Maohua2
2023-08-08
摘要The water-level fluctuation zone (WLFZ) of Wudongde reservoir of the upper Yangtze river is a completely new aquatic-terrestrial transitional zone, and its plant degenerate issue is attracting global concerns. Uncovering the unknown rhizosphere microbiome of dominant plants of this zone is helpful in understanding the plant-microbe interactions and their growth under the largely varying environment. Here, a first exploration of the rhizosphere bacterial and fungal communities of wilted (JB) and unwilted (JA) Argemone mexicana L. individuals from the WLFZ of Wudongde reservoir was carried out using high-throughput sequencing and MetaCyc metabolic pathway analyses. The results showed that rhizosphere of wilted A. mexicana L individuals exhibited a higher microbial richness and diversity than the unwilted ones, irrespective of the bacterial and fungal communities. It was noted that 837 common bacterial amplicon sequence variants (ASV) and 92 common fungal ASV were presented in both JA and JB with 3108 bacteria and 212 fungi unique to JA, and 3569 bacteria and 693 fungi unique to JB. Linear discriminant analysis effect Size (LEfSe) analyses indicated that the taxa that had the most contribution to observed differences between both JA and JB was Proteobacteria, Actinobacteria and Ascomycota for JA, and Bacteroidetes, Firmicutes, Verrucomicrobia, Basidiomycota and Ascomycota for JB. Organic compound conversion pathway (degradation/reduction/oxidation) was consistently highly represented in the rhizosphere microbiomes of both JA and JB. Overall, this study provides insights into the rhizosphere microbiome composition, diversity and metabolic pathways of both wilted and unwilted A. mexicana L. individuals in the WLFZ of Wudongde reservoir, and the results give valuable clues for manipulating microbes to support plant growth in such a recently-formed WLFZ under a dry-hot valley environment.
关键词dominant plant predicted metabolic pathway water-level fluctuation zone rhizosphere microbial diversity Wudongde reservoir
DOI10.3897/BDJ.11.e101950
发表期刊BIODIVERSITY DATA JOURNAL
ISSN1314-2836
卷号11页码:23
通讯作者Zhou, Lanfang(lfzhou2022@163.com) ; Wu, Shengjun(wsj@cigit.ac.cn)
收录类别SCI
WOS记录号WOS:001074498800002
语种英语