000110655 001__ 110655
000110655 005__ 20230519145521.0
000110655 0247_ $$2doi$$a10.3389/fmicb.2021.714537
000110655 0248_ $$2sideral$$a126812
000110655 037__ $$aART-2021-126812
000110655 041__ $$aeng
000110655 100__ $$aGarcia-Lopez, Eva
000110655 245__ $$aGlacial ice age shapes microbiome composition in a receding southern European glacier
000110655 260__ $$c2021
000110655 5060_ $$aAccess copy available to the general public$$fUnrestricted
000110655 5203_ $$aGlaciers and their microbiomes are exceptional witnesses of the environmental conditions from remote times. Climate change is threatening mountain glaciers, and especially those found in southern Europe, such as the Monte Perdido Glacier (northern Spain, Central Pyrenees). This study focuses on the reconstruction of the history of microbial communities over time. The microorganisms that inhabit the Monte Perdido Glacier were identified using high-throughput sequencing, and the microbial communities were compared along an altitudinal transect covering most of the preserved ice sequence in the glacier. The results showed that the glacial ice age gradient did shape the diversity of microbial populations, which presented large differences throughout the last 2000 years. Variations in microbial community diversity were influenced by glacial conditions over time (nutrient concentration, chemical composition, and ice age). Some groups were exclusively identified in the oldest samples as the bacterial phyla Fusobacteria and Calditrichaeota, or the eukaryotic class Rhodophyceae. Among groups only found in modern samples, the green sulfur bacteria (phylum Chlorobi) stood out, as well as the bacterial phylum Gemmatimonadetes and the eukaryotic class Tubulinea. A patent impact of human contamination was also observed on the glacier microbiome. The oldest samples, corresponding to the Roman Empire times, were influenced by the beginning of mining exploitation in the Pyrenean area, with the presence of metal-tolerant microorganisms. The most recent samples comprise 600-year-old ancient ice in which current communities are living.
000110655 536__ $$9info:eu-repo/grantAgreement/ES/AEI/PID2019-104205GB-C22$$9info:eu-repo/grantAgreement/ES/MINECO/CGL2015-72167-EXP
000110655 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000110655 590__ $$a6.064$$b2021
000110655 592__ $$a1.314$$b2021
000110655 594__ $$a8.2$$b2021
000110655 591__ $$aMICROBIOLOGY$$b34 / 138 = 0.246$$c2021$$dQ1$$eT1
000110655 593__ $$aMicrobiology (medical)$$c2021$$dQ1
000110655 593__ $$aMicrobiology$$c2021$$dQ1
000110655 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000110655 700__ $$0(orcid)0000-0001-7357-584X$$aMoreno, Ana
000110655 700__ $$aBartolome, Miguel
000110655 700__ $$aLeunda, María
000110655 700__ $$aSancho, Carlos
000110655 700__ $$aCid, Cristina
000110655 773__ $$g12 (2021), 714537 [14 pp.]$$pFront. microbiol.$$tFrontiers in Microbiology$$x1664-302X
000110655 8564_ $$s15020144$$uhttps://zaguan.unizar.es/record/110655/files/texto_completo.pdf$$yVersión publicada
000110655 8564_ $$s2298978$$uhttps://zaguan.unizar.es/record/110655/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000110655 909CO $$ooai:zaguan.unizar.es:110655$$particulos$$pdriver
000110655 951__ $$a2023-05-18-15:22:38
000110655 980__ $$aARTICLE