The microbially mediated soil organic carbon loss under degenerative succession in an alpine meadow

Zhang, Yuguang; Liu, Xiao; Cong, Jing; Lu, Hui; Sheng, Yuyu; Wang, Xiulei; Li, Diqiang; Liu, Xueduan; Yin, Huaqun; Zhou, Jizhong; Deng, Ye

doi:10.1111/mec.14148

Cited by 29 publications

(16 citation statements)

References 72 publications

(87 reference statements)

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“…Many studies have described soil microbial community structure in various natural environments, but failed to identify key communities related to detailed ecosystem functional processes (Zhang, Cong, et al, ; López‐Lozano et al, ). GeoChip data are widely used to analyze environmental microbial functional diversity (Cong, Liu, et al, ; Zhang, Cong, et al, ) and estimate how soil C and N content changes with microbial functional gene diversity (Xue et al, ; Zhang et al, ). Although GeoChip is unable to directly reflect soil microbial functional activities, it can show the presence of genes that have functional capacity (Zhang, Cong, et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…For example, Xue et al () found that SOC content decreased as a result of increased bacterial C degradation genes, and soil N content was reduced with a higher abundance of nifH , gdh , ureC, and nirK genes. Zhang et al () suggested that SOC content decreased following an increase in the relative abundance of labile C decomposition genes after alpine meadow degeneration succession. Ding et al () also found that SOC content decreased following an increase in C decomposition genes of soil bacteria in DBF.…”

Section: Discussionmentioning

confidence: 99%

“…Soil labile fractions play vital roles in maintaining soil fertility and providing adaptability to environmental effects (Yang et al, ). Natural climate change and anthropogenic activity can impact belowground quantity of soil organic C (SOC) (Poeplau & Don, ; Song, Kimberley, Zhou, & Wang, ; Zhang et al, ). The effects of vegetation conversion on SOC have been focused on changes related to forest age, quantity and quality of litter fall, soil disturbance (Song et al, ; Yang et al, ) and dominance of soil microbes with various strategies (Chen et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies have shown that microbial activity is related to C cycling based on investigations of microbial efficiency (Frey, Lee, Melillo, & Six, ; Six, Frey, Thiet, & Batten, ), metabolic quotient model (Bini et al, ), soil respiration (Carey et al, ; Song et al, ), phospholipid fatty acid analysis, and extracellular enzyme activity (Smith, Marín‐Spiotta, & Balser, ; Smith, Marín‐Spiotta, Graaff, & Balser, ). Studies have shown a direct correlation between soil bacterial functional gene diversity and SOC content (Xue et al, ; Zhang et al, ) based on GeoChip technology (Cong, Liu, et al, ; Tu et al, ; Yang et al, ; Zhang, Cong, et al, ). However, little is known about specific bioprocess of SOC fractions related to soil fungal diversity.…”

Section: Introductionmentioning

confidence: 99%

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Broad‐leaved forest types affect soil fungal community structure and soil organic carbon contents

Sheng

Cong

et al. 2019

MicrobiologyOpen

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Evergreen broad‐leaved (EBF) and deciduous broad‐leaved (DBF) forests are two important vegetation types in terrestrial ecosystems that play key roles in sustainable biodiversity and global carbon (C) cycling. However, little is known about their associated soil fungal community and the potential metabolic activities involved in biogeochemical processes. In this study, soil samples were collected from EBF and DBF in Shennongjia Mountain, China, and soil fungal community structure and functional gene diversity analyzed based on combined Illumina MiSeq sequencing with GeoChip technologies. The results showed that soil fungal species richness (p = 0.079) and fungal functional gene diversity (p < 0.01) were higher in DBF than EBF. Zygomycota was the most dominant phylum in both broad‐leaved forests, and the most dominant genera found in each forest varied (Umbelopsis dominated in DBF, whereas Mortierella dominated in EBF). A total of 4, 439 soil fungi associated functional gene probes involved in C and nitrogen (N) cycling were detected. Interestingly, the relative abundance of functional genes related to labile C degradation (e.g., starch, pectin, hemicellulose, and cellulose) was significantly higher (p < 0.05) in DBF than EBF, and the functional gene relative abundance involved in C cycling was significantly negatively correlated with soil labile organic C (r = −0.720, p = 0.002). In conclusion, the soil fungal community structure and potential metabolic activity showed marked divergence in different broad‐leaved forest types, and the higher relative abundance of functional genes involved in C cycling in DBF may be caused by release of loss of organic C in the soil.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Broad‐leaved forest types affect soil fungal community structure and soil organic carbon contents

Sheng

Cong

et al. 2019

MicrobiologyOpen

Self Cite

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“…Then, the data were transformed to natural logarithmic form. Detailed descriptions can be referred to previous studies (Zhang et al., ).…”

Section: Methodsmentioning

confidence: 99%

How bacterioplankton community can go with cascade damming in the highly regulated Lancang–Mekong River Basin

et al. 2018

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Rivers make vital contributions to the transport of water, sediment and nutrients from terrestrial to marine ecosystems. However, many large rivers worldwide are suffering from dam regulation. Increasing attention has been paid to bacterioplankton communities since they are highly responsive to river alterations and may influence biogeochemical processes. Here, a comprehensive study was conducted in the highly regulated Lancang-Mekong River Basin to address the question of how bacterioplankton communities respond to cascade damming. The results showed that dam constructions increased nutrient concentrations and threatened water quality in cascade reservoirs. Bacterioplankton cell abundance was reduced by damming, and α-diversity was inhibited in cascade reservoirs. Fortunately, however, river ecosystems were resilient after the remarkable disturbance caused by damming. Moreover, bacterioplankton community composition was significantly altered by cascade dams, including a shift in the dominant phylum from r-strategists to k-strategists. Meanwhile, according to GeoChip analysis, the functional composition of bacterioplankton was less affected than taxonomic composition. In addition, geographic and environmental features both followed a distance-decay relationship with community and functional composition, but the local environment condition was the dominant driver in the Lancang River. Therefore, the impoundments of cascade dams had significant impacts on bacterioplankton communities and more attention should be paid to the potential ecological consequences of river regulation.

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Effects of salt stress on the rhizosphere soil microbial communities of Suaeda salsa (L.) Pall. in the Yellow River Delta

Zhang,

Wang,

Zhang

et al. 2024

Ecology and Evolution

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Studies have shown that the microbiome of saline‐tolerant plants plays a significant role in promoting salt stress in non‐saline‐tolerant plants, but the microorganisms are still unclear. In the present study, the microbial diversity changes in Suaeda salsa (L.) Pall. in the Yellow River Delta region were investigated. In the bacterial community, the dominant bacteria in the rhizosphere soil of the low‐saline soil (YDL), moderate‐saline soil (YDM), and high‐saline soil (YDH) groups were Proteobacteria, Chloroflexi, Bacteroidota, and Actinobacteriota (at the phylum level), while Ascomycota and Basidiomycota were the dominant fungi in the fungal community. At the family level, with the increase of salinity, the relative abundance of Rhodobacteraceae (bacterial community), Thermoascaceae, and Phaffomycetaceae (fungal community) gradually increased; and to the best of our knowledge, there are no reports on the relationship between Thermoascaceae and Phaffomycetaceae families with salt stress. At the genus level, Salinimicrobium (bacterial community) was the dominant bacterium in the rhizosphere soil of the YDL, YDM, and YDH groups, while with the increase of salinity, the relative abundance of Byssochlamys and Wickerhamomyces (fungal community) gradually increased, and to the best of our knowledge there are no reports on the relationship between Byssochlamys and salt stress. Salinity mainly affected the bacterial community abundance, but it had little effect on the fungi community abundance. The bacterial community of the YDH group was dominated by bacteria of unknown origin (52.76%), while bacteria of unknown origin accounted for 26.46% and 20.78% of the bacterial communities in the YDM and YDL groups, respectively. The fungi community of the YDH group was dominated by YDL group fungi (relative abundance of 44.44%), followed by YDM group fungi (29.42%) and fungi of unknown origin (26.14%). These results provide a better understanding of the rhizosphere microbial diversity of saline–alkali‐tolerant plants, laying a foundation for developing a saline–alkali‐tolerant plant microbiome.

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The microbially mediated soil organic carbon loss under degenerative succession in an alpine meadow

Cited by 29 publications

References 72 publications

Broad‐leaved forest types affect soil fungal community structure and soil organic carbon contents

Broad‐leaved forest types affect soil fungal community structure and soil organic carbon contents

How bacterioplankton community can go with cascade damming in the highly regulated Lancang–Mekong River Basin

Effects of salt stress on the rhizosphere soil microbial communities of Suaeda salsa (L.) Pall. in the Yellow River Delta

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