Arid
DOI10.1089/ast.2011.0694
Comparative Metagenomics of Two Microbial Mats at Cuatro Cienegas Basin I: Ancient Lessons on How to Cope with an Environment Under Severe Nutrient Stress
Peimbert, Mariana1,2; David Alcaraz, Luis3,4; Bonilla-Rosso, German1; Olmedo-Alvarez, Gabriela3; Garcia-Oliva, Felipe5; Segovia, Lorenzo6; Eguiarte, Luis E.1; Souza, Valeria1
通讯作者Souza, Valeria
来源期刊ASTROBIOLOGY
ISSN1531-1074
EISSN1557-8070
出版年2012
卷号12期号:7页码:648-658
英文摘要

The Cuatro Cienegas Basin (CCB) is an oasis in the desert of Mexico characterized by low phosphorus availability and by its great diversity of microbial mats. We compared the metagenomes of two aquatic microbial mats from the CCB with different nutrient limitations. We observed that the red mat was P-limited and dominated by Pseudomonas, while the green mat was N-limited and had higher species richness, with Proteobacteria and Cyanobacteria as the most abundant phyla. From their gene content, we deduced that both mats were very metabolically diverse despite their use of different strategies to cope with their respective environments. The red mat was found to be mostly heterotrophic, while the green mat was more autotrophic. The red mat had a higher number of transporters in general, including transporters of cellobiose and osmoprotectants. We suggest that generalists with plastic genomes dominate the red mat, while specialists with minimal genomes dominate the green mat. Nutrient limitation was a common scenario on the early planet; despite this, biogeochemical cycles were performed, and as a result the planet changed. The metagenomes of microbial mats from the CCB show the different strategies a community can use to cope with oligotrophy and persist.


英文关键词Microbial mats Metagenomics Metabolism
类型Article
语种英语
国家Mexico ; Spain
收录类别SCI-E
WOS记录号WOS:000308370900004
WOS关键词PSEUDOMONAS-AERUGINOSA ; PHOSPHORUS LIMITATION ; SP NOV. ; GENOMES ; BACTERIA ; PROTEINS ; DIVERSITY ; SURVIVAL ; CARBON ; MEXICO
WOS类目Astronomy & Astrophysics ; Biology ; Geosciences, Multidisciplinary
WOS研究方向Astronomy & Astrophysics ; Life Sciences & Biomedicine - Other Topics ; Geology
来源机构Universidad Nacional Autónoma de México
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/171385
作者单位1.Univ Nacl Autonoma Mexico, Inst Ecol, Dept Ecol Evolutiva, Mexico City 04510, DF, Mexico;
2.Univ Autonoma Metropolitana, Dept Ciencias Nat, Mexico City, DF, Mexico;
3.CINVESTAV, Dept Ingn Genet, Irapuato, Mexico;
4.Ctr Super Invest Salud Publ, Dept Genet & Salud, Valencia, Spain;
5.Univ Nacl Autonoma Mexico, Ctr Invest Ecosistemas, Morelia, Michoacan, Mexico;
6.Univ Nacl Autonoma Mexico, Inst Biotechnol, Cuernavaca 62191, Morelos, Mexico
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GB/T 7714
Peimbert, Mariana,David Alcaraz, Luis,Bonilla-Rosso, German,et al. Comparative Metagenomics of Two Microbial Mats at Cuatro Cienegas Basin I: Ancient Lessons on How to Cope with an Environment Under Severe Nutrient Stress[J]. Universidad Nacional Autónoma de México,2012,12(7):648-658.
APA Peimbert, Mariana.,David Alcaraz, Luis.,Bonilla-Rosso, German.,Olmedo-Alvarez, Gabriela.,Garcia-Oliva, Felipe.,...&Souza, Valeria.(2012).Comparative Metagenomics of Two Microbial Mats at Cuatro Cienegas Basin I: Ancient Lessons on How to Cope with an Environment Under Severe Nutrient Stress.ASTROBIOLOGY,12(7),648-658.
MLA Peimbert, Mariana,et al."Comparative Metagenomics of Two Microbial Mats at Cuatro Cienegas Basin I: Ancient Lessons on How to Cope with an Environment Under Severe Nutrient Stress".ASTROBIOLOGY 12.7(2012):648-658.
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