Climate change alters temporal dynamics of alpine soil microbial functioning and biogeochemical cycling via earlier snowmelt
AuthorsBroadbent, Arthur A. D.; orcid: 0000-0002-8438-7163; email: firstname.lastname@example.org
Snell, Helen S. K.
Pritchard, William J.
Newbold, Lindsay; orcid: 0000-0001-8895-1406
Cordero, Irene; orcid: 0000-0002-6249-8348
Goodall, Tim; orcid: 0000-0002-1526-4071
Griffiths, Robert I.; orcid: 0000-0002-3341-4547
Schloter, Michael; orcid: 0000-0003-1671-1125
Bardgett, Richard D.; orcid: 0000-0002-5131-0127
MetadataShow full item record
AbstractAbstract: Soil microbial communities regulate global biogeochemical cycles and respond rapidly to changing environmental conditions. However, understanding how soil microbial communities respond to climate change, and how this influences biogeochemical cycles, remains a major challenge. This is especially pertinent in alpine regions where climate change is taking place at double the rate of the global average, with large reductions in snow cover and earlier spring snowmelt expected as a consequence. Here, we show that spring snowmelt triggers an abrupt transition in the composition of soil microbial communities of alpine grassland that is closely linked to shifts in soil microbial functioning and biogeochemical pools and fluxes. Further, by experimentally manipulating snow cover we show that this abrupt seasonal transition in wide-ranging microbial and biogeochemical soil properties is advanced by earlier snowmelt. Preceding winter conditions did not change the processes that take place during snowmelt. Our findings emphasise the importance of seasonal dynamics for soil microbial communities and the biogeochemical cycles that they regulate. Moreover, our findings suggest that earlier spring snowmelt due to climate change will have far reaching consequences for microbial communities and nutrient cycling in these globally widespread alpine ecosystems.
CitationThe ISME Journal, volume 15, issue 8, page 2264-2275
PublisherNature Publishing Group UK
DescriptionFrom Springer Nature via Jisc Publications Router
History: received 2020-08-29, rev-recd 2021-01-26, accepted 2021-02-01, registration 2021-02-02, pub-electronic 2021-02-22, online 2021-02-22, pub-print 2021-08
Publication status: Published
Funder: RCUK | Natural Environment Research Council (NERC); doi: https://doi.org/10.13039/501100000270; Grant(s): NE/N009452/1
Funder: RCUK | Biotechnology and Biological Sciences Research Council (BBSRC); doi: https://doi.org/10.13039/501100000268; Grant(s): BB/S010661/1
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No Difference in Penetrance between Truncating and Missense/Aberrant Splicing Pathogenic Variants in MLH1 and MSH2: A Prospective Lynch Syndrome Database StudyDominguez-Valentin, Mev; orcid: 0000-0001-7856-0057; email: Mev.Dominguez.Valentin@rr-research.no; Plazzer, John-Paul; orcid: 0000-0001-5114-4301; email: email@example.com; Sampson, Julian R.; email: Sampson@cardiff.ac.uk; Engel, Christoph; orcid: 0000-0002-7247-282X; email: firstname.lastname@example.org; Aretz, Stefan; orcid: 0000-0002-5228-1890; email: email@example.com; Jenkins, Mark A.; email: firstname.lastname@example.org; Sunde, Lone; email: email@example.com; Bernstein, Inge; email: firstname.lastname@example.org; Capella, Gabriel; orcid: 0000-0002-4669-7320; email: email@example.com; Balaguer, Francesc; orcid: 0000-0002-0206-0539; email: firstname.lastname@example.org; et al. (MDPI, 2021-06-28)Background. Lynch syndrome is the most common genetic predisposition for hereditary cancer. Carriers of pathogenic changes in mismatch repair (MMR) genes have an increased risk of developing colorectal (CRC), endometrial, ovarian, urinary tract, prostate, and other cancers, depending on which gene is malfunctioning. In Lynch syndrome, differences in cancer incidence (penetrance) according to the gene involved have led to the stratification of cancer surveillance. By contrast, any differences in penetrance determined by the type of pathogenic variant remain unknown. Objective. To determine cumulative incidences of cancer in carriers of truncating and missense or aberrant splicing pathogenic variants of the MLH1 and MSH2 genes. Methods. Carriers of pathogenic variants of MLH1 (path_MLH1) and MSH2 (path_MSH2) genes filed in the Prospective Lynch Syndrome Database (PLSD) were categorized as truncating or missense/aberrant splicing according to the InSiGHT criteria for pathogenicity. Results. Among 5199 carriers, 1045 had missense or aberrant splicing variants, and 3930 had truncating variants. Prospective observation years for the two groups were 8205 and 34,141 years, respectively, after which there were no significant differences in incidences for cancer overall or for colorectal cancer or endometrial cancers separately. Conclusion. Truncating and missense or aberrant splicing pathogenic variants were associated with similar average cumulative incidences of cancer in carriers of path MLH1 and path_MSH2.
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