ArticleScientific reports2019
Drought-induced soil microbial amino acid and polysaccharide change and their implications for C-N cycles in a climate change world.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Enzymatic indicators reveal drought sensitivity of the deadwood-soil system in temperate forests.Scientific reports · 2026Article
- Drought Drives Extracellular Polymeric Substances Accumulation and Functional Shifts in Streambed Biofilm Communities.Microbial ecology · 2025Article
- Activation dynamics and assembly of root zone soil bacterial communities in response to stress-associated phytohormones.Microbiology spectrum · 2025Article
- Irrigation ofMicroorganisms · 2025Article
- Drought re-routes soil microbial carbon metabolism towards emission of volatile metabolites in an artificial tropical rainforest.Nature microbiology · 2023Article
- Ecological memory of recurrent drought modifies soil processes via changes in soil microbial community.Nature communications · 2021Article
- Effects of Abiotic Stress on Soil Microbiome.International journal of molecular sciences · 2021Review
- Adaptation to chronic drought modifies soil microbial community responses to phytohormones.Communications biology · 2021Article
- Seasonal Patterns of Dominant Microbes Involved in Central Nutrient Cycles in the Subsurface.Microorganisms · 2020Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
High microbial carbon (MBC) demand, a proxy for energy demand (cost), during soil microbial response to stressors such as drought are a major gap in understanding global biogeochemical cycling of carbon (C) and nitrogen (N). The dynamics of two dominant microbial pools (amino acids; AA and exopolymeric substances; EPS) in soils exposed to drying and C and N amendment to mimic both low and high nutrient soil habitats were examined. It was hypothesized that dynamics of EPS and AA (osmolytes) would be greater when soil drying was preceded by a pulse of bioavailable C and N. Drying reduced AA content, even as overall soil MBC increased (~35%). The increase in absolute amounts and mol% of certain AA (eg: Taurine, glutamine, tyrosine, phenylalanine) in the driest treatment (-10 MPa) were similar in both soils regardless of amendment suggesting a common mechanism underlying the energy intensive acclimation across soils. MBC and EPS, both increased ~1.5X and ~3X due to drying and especially drying associated with amendment. Overall major pools of C and N based microbial metabolites are dynamic to drying (drought), and thus have implications for earth's biogeochemical fluxes of C and N, perhaps costing 4-7% of forest fixed photosynthetic C input during a single drying (drought) period.
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