Soil microbial functional diversity patterns and drivers along an elevation gradient on Qinghai-Tibet, China

Ying, 王颖 Wang; Ning, 宗宁 Zong; Nianpeng, 何念鹏 He; Jinjing, 张晋京 Zhang; Jing, 田静 Tian; Liangtao, 李良涛 Li

doi:10.5846/stxb201707261343

Cited by 3 publications

(2 citation statements)

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“…Researchers have found that land cover conversion significantly influences surface soil carbon and nitrogen storage as well as soil microbial functional diversity in alpine meadows on the Qinghai-Tibet ( Zhu et al, 2015 ). Additionally, different altitude gradients have significant effects on the metabolic diversity of microbial communities in alpine meadows ( Wang et al, 2018 ). Forest ecosystems play a pivotal role in maintaining the functional diversity of soil microorganisms.…”

Section: Introductionmentioning

confidence: 99%

Analysis on metabolic functions of rhizosphere microbial communities of Pinus massoniana provenances with different carbon storage by Biolog Eco microplates

Huang,

Qin,

et al. 2024

Front. Microbiol.

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IntroductionRhizosphere microorganisms are influenced by vegetation. Meanwhile, they respond to vegetation through their own changes, developing an interactive feedback system between microorganisms and vegetation. However, it is still unclear whether the functional diversity of rhizosphere soil microorganisms varies with different carbon storage levels and what factors affect the functional diversity of rhizosphere soil microorganisms.MethodsIn this study, the Biolog-Eco microplate technique was used to analyze the metabolic diversity of carbon source of rhizosphere soil microorganisms from 6 Pinus massoniana provenances with three levels of high, medium and low carbon storage.ResultsThe results showed that the average well color development(AWCD) value of rhizosphere microorganisms was significantly positive correlated with carbon storage level of Pinus massoniana (p < 0.05). The AWCD value, Simpson and Shannon diversity of high carbon sequestrance provenances were 1.40 (144h incubation) 0.96 and 3.24, respectively, which were significantly higher (p < 0.05) than those of other P. massoniana provenances. The rhizosphere microbial AWCD, Shannon and Simpson diversity of the 6 provenances showed the same variation trend (SM>AY>QJ>SX>HF>SW). Similarly, microbial biomass carbon (MBC) content was positively correlated with carbon storage level, and there were significant differences among high, medium and low carbon storage provenances. The PCA results showed that the differences in the carbon source metabolism of rhizosphere microorganisms were mainly reflected in the utilization of amino acids, carboxylic acids and carbohydrates. Pearson correlation analysis showed that soil organic carbon (SOC), total nitrogen (TN) and pH were significantly correlated with rhizosphere AWCD (p < 0.05).ConclusionSoil properties are important factors affecting rhizosphere microbial carbon source metabolism. The study confirmed that the microorganisms of high carbon storage provenances had relatively high carbon metabolic activity. Among them, the carbon metabolic activity of rhizosphere microorganisms of SM provenance was the highest, which was the preferred provenances in effective ecological service function.

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Section: Introductionmentioning

confidence: 99%

Analysis on metabolic functions of rhizosphere microbial communities of Pinus massoniana provenances with different carbon storage by Biolog Eco microplates

Huang,

Qin,

et al. 2024

Front. Microbiol.

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“…The current research mainly focuses on the metabolic diversity of soil microbial communities under different altitude gradients, climate change, human disturbance and rhizosphere environment. It has been found that different elevation gradients in alpine meadows significantly influence the metabolism diversity of microbial communities [25]. Elevated CO 2 concentration could significantly increase the activity of microbial communities and the utilization of carbon sources in the root zone of Lycium barbarum [26].…”

Section: Introductionmentioning

confidence: 99%

Functional Diversity of Soil Microorganisms and Influencing Factors in Three Typical Water-Conservation Forests in Danjiangkou Reservoir Area

Yao

Zhang

Wang

et al. 2022

Forests

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As a key part of the forest ecosystem, soil microorganisms play extremely important roles in maintaining the ecological environment and the security of water quality in reservoir areas. However, it is not clear whether there are differences in the functional diversity of soil microorganisms in different types of water−conservation forests in reservoir areas, and which factors affect the functional diversity of soil microorganisms. In our study, the Biolog−Eco microplate technique was used to analyze the carbon source metabolic characteristics of soil microbial communities in three typical water−conservation forests and a non−forest land: Pinus massoniana−Quercus variabilis mixed forest (MF), Pinus massoniana forest (PF), Quercus variabilis forest (QF) and non−forest land (CK). The results showed that the average well color development (AWCD), the Shannon diversity index (SDI) and the richness index (S) of the three forest lands was significantly greater than that of the non−forest land (p < 0.05). The mean values of AWCD, SDI and S of the three forests had the same order (QF > PF > MF), but there was no significant difference among different types of forests. The microbial biomass carbon (MBC) and microbial biomass nitrogen (MBN) of QF and PF were higher than those of MF and CK, but the microbial biomass C/N ratio (MBC/MBN) was lower. The variance partitioning analysis (VPA) showed that 86.4% of the variation was explained by plant (community) diversity, soil physical and chemical properties and soil microbial biomass, which independently explained 10.0%, 28.9%, and 14.9% of the variation, respectively. The redundancy analysis (RDA) showed that total phosphorus (TP), microbial biomass carbon (MBC), total nitrogen (TN), number of plant species (Num) and alkali-hydro nitrogen (Wn) were the key factors affecting the functional diversity of soil microorganisms. This study confirmed that forest ecosystem is better than non−forest land in maintaining soil microbial function diversity. Moreover, Quercus variabilis forest may be a better stand type in maintaining the diversity of soil microbial functions in the study area.

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Soil Microbial Community Diversity under Different Altitudes in the Tropical Mountain Rainforests of Yinggeling National Nature Reserve in Hainan Island

吴

2023

AMB

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Soil microbial functional diversity patterns and drivers along an elevation gradient on Qinghai-Tibet, China

Cited by 3 publications

References 0 publications

Analysis on metabolic functions of rhizosphere microbial communities of Pinus massoniana provenances with different carbon storage by Biolog Eco microplates

Analysis on metabolic functions of rhizosphere microbial communities of Pinus massoniana provenances with different carbon storage by Biolog Eco microplates

Functional Diversity of Soil Microorganisms and Influencing Factors in Three Typical Water-Conservation Forests in Danjiangkou Reservoir Area

Soil Microbial Community Diversity under Different Altitudes in the Tropical Mountain Rainforests of Yinggeling National Nature Reserve in Hainan Island

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