Pedosphere 33(2): 312--320, 2023
ISSN 1002-0160/CN 32-1315/P
©2023 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Bacterial and archaeal communities in saline soils from a Los Negritos geothermal area in Mexico |
Joseph GUEVARA-LUNA1, Mario HERNÁNDEZ-GUZMÁN2, Nina MONTOYA-CIRIACO3, Luc DENDOOVEN2, Marina Olivia FRANCO-HERNÁNDEZ4, Paulina ESTRADA-DE LOS SANTOS1, María Soledad VÁSQUEZ-MURRIETA1 |
1Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340(Mexico);
2Laboratory of Soil Ecology, Cinvestav, Mexico City 07360(Mexico);
3Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala. Carretera Federal Tlaxcala-Puebla km. 1. 5, Tlaxcala 90070(Mexico);
4Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional, Ciudad de México 07340(Mexico) |
| ABSTRACT |
| In recent years, there has been a growing need to understand how salinity affects microbial communities in agricultural soils. Archaeal and bacterial community diversities and structures were investigated by high-throughput sequencing analysis of their 16S rRNA in two arable soils with low electrical conductivity (EC) (2.3 and 2.6 dS m-1) and a saline soil (EC = 17.6 dS m-1). The dominant bacterial phyla in the soils were Proteobacteria (relative abundance (RA) = 46.2%), followed by Acidobacteria (RA =13.1%) and Actinobacteria (RA = 10.0%), whereas Serratia (RA = 6.0%) and Bacillus (RA = 4.0%) were the dominant bacterial genera. Candidatus Nitrososphaera (53.5%) was the dominant archaeal phylotype in the arable soils, whereas Nitrosopumilus (RA = 0.4%) dominated in the saline soil. The archaeal and bacterial community structures were different between the soils and significantly correlated with soil sand, arsenic, barium, and antimony contents, but not with soil salinity. |
| Key Words: agricultural soil,compositional approach,microbial community,mud volcano,soil salinity,soluble anion |
| Citation: Guevara-Luna J, Hernández-Guzmán M, Montoya-Ciriaco N, Dendooven L, Franco-Hernández M O, Estrada-de los Santos P, Vásquez-Murrieta M S. 2023. Bacterial and archaeal communities in saline soils from a Los Negritos geothermal area in Mexico. Pedosphere. 33(2): 312-320. |
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