2022
DOI: 10.3389/fmicb.2022.866828
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Shared Microbial Taxa Respond Predictably to Cyclic Time-Varying Oxygen Limitation in Two Disparate Soils

Abstract: Periodic oxygen (O2) limitation in humid terrestrial soils likely influences microbial composition, but whether communities share similar responses in disparate environments remains unclear. To test if specific microbial taxa share consistent responses to anoxia in radically different soils, we incubated a rainforest Oxisol and cropland Mollisol under cyclic, time-varying anoxic/oxic cycles in the laboratory. Both soils are known to experience anoxic periods of days to weeks under field conditions; our incubat… Show more

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Cited by 4 publications
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“…These variations could impact carbon cycling and climate feedback mechanisms by altering soil microbial activity and respiration processes. Moreover, prolonged water accumulation in the thermokarst subsidence zone elevates volumetric water content compared to the natural state, creating an anaerobic environment that reduces aerobic microbial and plant root respiration, resulting in carbon emissions primarily from microbial heterotrophic respiration [ 43 , 44 , 45 ].…”
Section: Discussionmentioning
confidence: 99%
“…These variations could impact carbon cycling and climate feedback mechanisms by altering soil microbial activity and respiration processes. Moreover, prolonged water accumulation in the thermokarst subsidence zone elevates volumetric water content compared to the natural state, creating an anaerobic environment that reduces aerobic microbial and plant root respiration, resulting in carbon emissions primarily from microbial heterotrophic respiration [ 43 , 44 , 45 ].…”
Section: Discussionmentioning
confidence: 99%