Calcium promotes persistent soil organic matter by altering microbial transformation of plant litter
Cornell University · Connecticut Agricultural Experiment Station · +4 more institutions
Abstract
Abstract Calcium (Ca) can contribute to soil organic carbon (SOC) persistence by mediating physico-chemical interactions between organic compounds and minerals. Yet, Ca is also crucial for microbial adhesion, potentially affecting colonization of plant and mineral surfaces. The importance of Ca as a mediator of microbe-mineral-organic matter interactions and resulting SOC transformation has been largely overlooked. We incubated 44 Ca labeled soils with 13 C 15 N labeled leaf litter to study how Ca affects microbial transformation of litter and formation of mineral associated organic matter. Here we show that Ca additions promote hyphae-forming bacteria, which often specialize in colonizing surfaces, and…
Citation impact
- FWCI
- 34.22
- Percentile
- 100%
- References
- 83
Authors
6Topics & keywords
- Litter
- Organic matter
- Abiotic component
- Chemistry
- Plant litter
- Environmental chemistry
- Soil organic matter
- Biomass (ecology)
Funding
- NSNational Science FoundationAwards: IOS-2034351, 2034351
- UDU.S. Department of EnergyAward: DE-SC0016364
- USUnited States - Israel Binational Agricultural Research and Development FundAward: FI-573-2018
- CLCanadian Light Source
- OOOffice of ScienceAward: DE-SC0016364
- CICanadian Institutes of Health Research
- NSNatural Sciences and Engineering Research Council of Canada