Contrasting bacterial communities and their assembly processes in karst soils under different land use

USCγDominated Community Composition and Cooccurrence Network of Methanotrophs and Bacteria in Subterranean Karst Caves

“…The supernatant pH of the suspension was determined using a multiparameter water quality detector (Hach, Loveland, CO, USA) ( 25 ). Dissolved anions and cations were measured with anionic chromatography (ICS-600; Thermo Scientific, USA) and inductively coupled plasma-optical emission spectrometry (ICP-OES) (iCAP 7600+; Thermo, USA), respectively, after filtration with 0.22-μm filters ( 47 ). The concentrations of CH 4 and CO 2 gases and the carbon isotope of CO 2 ([δ 13 C]CO 2 ) of cave air samples were measured by a high-precision carbon isotope analyzer (G2201-I; Picarro, USA) using cavity decay spectroscopy (cavity ring-down spectroscopy [CRDS]) ( 5 ) at the Institute of Karst Geology, Chinese Academy of Geological Sciences.…”

Habitat specificity and co-occurrence network of bacterial communities in the Xincuntun Cave, Guilin, Guangxi

“…业已证实, pH是影响土壤细菌群落组成和多样性 的关键因素 [52,53] , 在新村屯洞穴中, pH也是控制群落结 构的主要环境因子. 进一步的研究显示pH还影响某些 微生物类群在群落结构中的相对丰度 [54] .…”

Microbial Interactions Drive Distinct Taxonomic and Potential Metabolic Responses to Habitats in Karst Cave Ecosystem

“…The undeveloped Heshang Cave is located in western Hubei Province. Environmental conditions within the cave have been continuously monitored since 2004 ( 33 – 35 ). Our previous work has confirmed that pH and total organic carbon (TOC) were the deterministic factors affecting the distribution of microbial communities in Heshang Cave ( 36 ).…”