DSpace Repository

Root and arbuscular mycorrhizal mycelial interactions with soil microorganisms in lowland tropical forest

Show simple item record

dc.contributor.author Nottingham, Andrew T.
dc.contributor.author Turner, Benjamin L.
dc.contributor.author Winter, Klaus
dc.contributor.author Chamberlain, Paul M.
dc.contributor.author Stott, Andrew
dc.contributor.author Tanner, Edmund V. J.
dc.date.accessioned 2013-10-25T13:46:18Z
dc.date.available 2013-10-25T13:46:18Z
dc.date.issued 2013
dc.identifier 1574-6941
dc.identifier.citation Nottingham, Andrew T., Turner, Benjamin L., Winter, Klaus, Chamberlain, Paul M., Stott, Andrew, and Tanner, Edmund V. J. 2013. "<a href="https://repository.si.edu/handle/10088/21578">Root and arbuscular mycorrhizal mycelial interactions with soil microorganisms in lowland tropical forest</a>." <em>FEMS microbiology ecology</em>, 85, (1) 37–50. <a href="https://doi.org/10.1111/1574-6941.12096">https://doi.org/10.1111/1574-6941.12096</a>.
dc.identifier.issn 1574-6941
dc.identifier.uri http://hdl.handle.net/10088/21578
dc.description.abstract Tropical forests have high rates of soil carbon cycling, but little information is available on how roots, arbuscular mycorrhizal fungi (AMF), and free-living microorganisms interact and influence organic matter mineralization in these ecosystems. We used mesh ingrowth cores and isotopic tracers in phospholipid fatty acid biomarkers to investigate the effects of roots and AMF mycelia on (1) microbial community composition, microbial carbon utilization, and hydrolytic enzyme activities for large, potted tropical trees and (2) enzyme activities and litter mass loss in a lowland tropical forest. Under the tropical tree, plant-derived carbon was incorporated predominantly into bacterial groups in both rhizosphere and AMF-only soils. Gram-positive bacteria incorporated additional soil-derived carbon in rhizosphere soils, which also contained the highest microbial biomass. For hydrolytic enzymes, β-glucosidase and N-acetyl β-glucosaminidase activities were highest in rhizosphere soils, while phosphomonoesterase activity was highest in AMF-only soil. In the forest, leaf litter mass loss was increased by the presence of roots, but not by the presence of AMF mycelia only. Root–microbial interactions influenced organic matter cycling, with evidence for rhizosphere priming and accelerated leaf litter decomposition in the presence of roots. Although AMF mycelia alone did not stimulate organic matter mineralization, they were a conduit of carbon to other soil microorganisms.
dc.format.extent 37–50
dc.publisher Wiley-Blackwell
dc.relation.ispartof FEMS microbiology ecology 85 (1)
dc.title Root and arbuscular mycorrhizal mycelial interactions with soil microorganisms in lowland tropical forest
dc.type article
sro.identifier.refworksID 65540
sro.identifier.itemID 114950
sro.description.unit STRI
sro.identifier.doi 10.1111/1574-6941.12096
sro.identifier.url https://repository.si.edu/handle/10088/21578
sro.publicationPlace Hoboken


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Browse

My Account