Impacts of the rhizosphere effect and plant species on organic carbon mineralization rates and pathways, and bacterial community composition in a tidal marsh

Liu, Yuxiu; Luo, Min; Ye, Rongzhong; Huang, Jiafang; Xiao, Leilei; Hu, Qikai; Zhu, Aijv; Tong, Chuan

doi:10.1093/femsec/fiz120

Cited by 19 publications

(5 citation statements)

References 92 publications

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“…Plants significantly affect the diversity of rhizosphere microbial communities by selectively recruiting symbiotically associated microorganisms. This selectivity often leads to varying impacts on the composition, distribution, and diversity of these microbial communities within the rhizosphere [52,53]. This explained that the diversity of the rhizosphere microbial community was relatively low under normal conditions and maintained at a high level compared to the bulk soil under seawater stress in this study.…”

Section: The Microbial Diversity Of Tea Rhizosphere Presents More Sta...mentioning

confidence: 75%

Microbial Community Shifts in Tea Plant Rhizosphere under Seawater Stress: Enrichment of Beneficial Taxa

Zhang,

Li,

et al. 2024

Microorganisms

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Seawater intrusion has a significant impact on the irrigation quality of agricultural water, thereby posing a threat to plant growth and development. We hypothesized that the rhizosphere of tea plants harbors beneficial microorganisms, which may improve the tolerance of tea plants to seawater stress. This study utilized 16s and ITS techniques to analyze microbial community shifts in the tea plant rhizosphere and non-rhizosphere under seawater stress conditions. The findings suggest that seawater stress leads to a reduction in microbial diversity, although the rhizosphere microbial diversity in stressed soils showed a relatively higher level. Moreover, the rhizosphere of the tea plant under seawater stress exhibited an enrichment of plant growth-promoting rhizobacteria alongside a higher presence of pathogenic fungi. Network analysis revealed that seawater stress resulted in the construction of a more complex and stable rhizosphere microbial network compared to normal conditions. Predictions of bacterial potential functions highlighted a greater diversity of functional groups, enhancing resource utilization efficiency. In general, the rhizosphere microorganisms of tea plants are jointly selected by seawater and the host. The microorganisms closely related to the rhizosphere of tea plants are retained and, at the same time, attract beneficial microorganisms that may alleviate stress. These findings provide new insights into plant responses to saline stress and have significant implications for leveraging vegetation to enhance the resilience of coastal saline soils and contribute to economic progress.

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Section: The Microbial Diversity Of Tea Rhizosphere Presents More Sta...mentioning

confidence: 75%

Microbial Community Shifts in Tea Plant Rhizosphere under Seawater Stress: Enrichment of Beneficial Taxa

Zhang,

Li,

et al. 2024

Microorganisms

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“…It was also noted (18) that in salt marsh habitats, the rapid vertical accretion of sediments is driven by eco-geomorphic feedbacks and thus maintains surface elevation in the tidal border by stimulating sediment accumulation at rates equivalent to relative sea-level rise. The mechanism of C stock and sequestration was explained by many authors in tidal marsh soils where saline seawater with high concentration of sulphate salts results predominance of sulphate reducing bacteria (19) .These bacteria restrict soil C mineralization and suppress methane production (20) . Thus, the combination of high biomass input and slow turnover of C impacts on C stocks in tidal salt marsh soils (21) .…”

Section: Resultsmentioning

confidence: 99%

Soil organic carbon stocks in the blue carbon habitats of Bangladesh

Uddin,

Rahman,

Kibria

et al. 2023

Dhaka Univ. J. Biol. Sci

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A study was conducted in the coastal blue carbon habitats of Bangladesh regarding soil organic carbon (SOC) stocks. Fifty soil samples covering 10 soil profiles at five different depths level up to 1 m was considered to complete the above research. In the salt marsh sites, SOC ranged from 13.1 to 45.7 g/kg with a mean value of 27.5 g/kg. In the mangrove sites, SOC varied from 14.1 to 46.3 g/kg with a mean value 26.4 g/kg. In Mangrove ecosystem soils, clay contents showed a very strong positive correlation with SOC (r = 0.901 and p < 0.01) whereas silt showed a significant positive correlation with the SOC (r = 0.691 and p< 0.05) in the salt marsh sites. As the mangrove ecosystem holds more clay than the salt marsh ecosystem so it may be said that mangrove soils are more potential for carbon storage than salt marsh soils. The study revealed that both of these ecosystems hold more carbon than the threshold level (20.0 g/kg). It is suggested to protect and regenerate the blue carbon habitats in the coastal ecosystem considering the present findings to tackle climate change and other sudden disasters. Dhaka Univ. J. Biol. Sci. 32(2): 179-188, 2023 (July)

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“…Meanwhile, plants significantly influence the rhizosphere microbial community diversity by recruiting microbes with symbiotic associations (Vacheron et al ., 2013; Venturi and Keel, 2016). The plants offer a diverse effect on the rhizosphere microbial community composition, distribution and diversity (Na et al ., 2018; Liu et al ., 2019; Schneijderberg et al ., 2020). In general, the microbial community in the rhizosphere region is under the influence of a plant host and is markedly different from the bulk soil (Bakker et al ., 2013).…”

Section: Discussionmentioning

confidence: 99%

Rhizosphere impacts bacterial community structure in the tea (Camellia sinensis (L.) O. Kuntze.) estates of Darjeeling, India

Bhattacharyya

Imchen

Mukherjee

et al. 2022

Environmental Microbiology

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India contributes 28% of the world's tea production, and the Darjeeling tea of India is a world-famous tea variety known for its unique quality, flavour and aroma. This study analyzed the spatial distribution of bacterial communities in the tea rhizosphere of six different tea estates at different altitudes. The organic carbon, total nitrogen and available phosphate were higher in the rhizosphere soils than the bulk soils, irrespective of the sites. Alpha and beta diversities were significantly (p < 0.05) higher in the bulk soil than in the rhizosphere. Among the identified phyla, the predominant ones were Proteobacteria, Actinobacteria and Acidobacteria. At the genus level, only four out of 23 predominant genera (>1% relative abundance) could be classified, viz., Candidatus Solibacter (5.36 AE 0.36%), Rhodoplanes (4.87 AE 0.3%), Candidatus Koribacter (2.3 AE 0.67%), Prevotella (1.49 AE 0.26%). The rhizosphere effect was prominent from the significant depletion of more ASVs (n = 39) compared to enrichment (n = 11). The functional genes also exhibit a similar trend with the enrichment of N 2 fixation genes, disease suppression and Acetoin synthesis. Our study reports that the rhizobiome of tea is highly selective by reducing the alpha and beta diversity while enriching the significant functional genes.

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Impacts of the rhizosphere effect and plant species on organic carbon mineralization rates and pathways, and bacterial community composition in a tidal marsh

Cited by 19 publications

References 92 publications

Microbial Community Shifts in Tea Plant Rhizosphere under Seawater Stress: Enrichment of Beneficial Taxa

Microbial Community Shifts in Tea Plant Rhizosphere under Seawater Stress: Enrichment of Beneficial Taxa

Soil organic carbon stocks in the blue carbon habitats of Bangladesh

Rhizosphere impacts bacterial community structure in the tea (Camellia sinensis (L.) O. Kuntze.) estates of Darjeeling, India

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