RT Journal Article
T1 Impacts of Saharan dust intrusions on bacterial communities of the low troposphere
A1 González-Toril, Elena
A1 Osuna, Osuna
A1 Viúdez-Moreiras, Daniel
A1 Navarro-Cid, Iván
A1 Díaz del Toro, Silvia
A1 Sor, Suthyvann
A1 Bardera, Rafael
A1 Puente-Sánchez, Fernando
A1 Diego-Castilla, Graciela de
A1 Aguilera, Ángeles
AB We have analyzed the bacterial community of a large Saharan dust event in the Iberian Peninsula and, for the frst time, we ofer new insights regarding the bacterial distribution at diferent altitudes of the lower troposphere and the replacement of the microbial airborne structure as the dust event receeds. Samples from diferent open-air altitudes (surface, 100m and 3km), were obtained onboard the National Institute for Aerospace Technology (INTA) C-212 aircrafts. Samples were collected during dust and dust-free air masses as well two weeks after the dust event. Samples related in height or time scale seems to show more similar community composition patterns compared with unrelated samples. The most abundant bacterial species during the dust event, grouped in three diferent phyla: (a) Proteobacteria: Rhizobiales, Sphingomonadales, Rhodobacterales, (b) Actinobacteria: Geodermatophilaceae; (c) Firmicutes: Bacillaceae. Most of these taxa are well known for being extremely stress-resistant. After the dust intrusion, Rhizobium was the most abundant genus, (40–90% total sequences). Samples taken during the fights carried out 15 days after the dust event were much more similar to the dust event samples compared with the remaining samples. In this case, Brevundimonas, and Methylobacterium as well as Cupriavidus and Mesorizobium were the most abundant genera.
PB Nature Research
SN ESSN: 2045-2322
YR 2020
FD 2020-04-22
LK https://hdl.handle.net/20.500.14352/6364
UL https://hdl.handle.net/20.500.14352/6364
LA eng
NO Ministerio de Economía y Competitividad (MINECO)
NO Consejo Superior de Investigaciones Científicas (CSIC)
DS Docta Complutense
RD 5 abr 2025