Prokaryotic diversity across a pH gradient in the “El Chichón” crater-lake: a naturally thermo-acidic environment

Velázquez-Ríos, Irving Oswaldo; Rincón-Rosales, Reiner; Gutiérrez-Miceli, Federico Antonio; Alcántara-Hernández, Rocio J.; Ruíz-Valdiviezo, Víctor Manuel

doi:10.1007/s00792-022-01257-0

Cited by 3 publications

(1 citation statement)

References 84 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In preliminary work, we studied the structure and diversity of the microbial community in the volcanic sediments of El Chichón [18] and recently we published information related to the diversity of PGPB associated with two pioneer plants [19]. These reports generated scientific interest and have given rise to new specialized investigations where next generation sequencing tools are being employed to exploit microbial communities [20].…”

Section: Introductionmentioning

confidence: 99%

Bacterial Community with Plant Growth-Promoting Potential Associated to Pioneer Plants from an Active Mexican Volcanic Complex

et al. 2022

Self Cite

View full text Add to dashboard Cite

Microorganisms in extreme volcanic environments play an important role in the development of plants on newly exposed substrates. In this work, we studied the structure and diversity of a bacterial community associated to Andropogon glomeratus and Cheilanthes aemula at El Chichón volcano. The genetic diversity of the strains was revealed by genomic fingerprints and by 16S rDNA gene sequencing. Furthermore, a metagenomic analysis of the rhizosphere samples was carried out for pioneer plants growing inside and outside the volcano. Multifunctional biochemical tests and plant inoculation assays were evaluated to determine their potential as plant growth-promoting bacteria (PGPB). Through metagenomic analysis, a total of 33 bacterial phyla were identified from A. glomeratus and C. aemula rhizosphere samples collected inside the volcano, and outside the volcano 23 bacterial phyla were identified. For both rhizosphere samples, proteobacteria was the most abundant phylum. With a cultivable approach, 174 bacterial strains were isolated from the rhizosphere and tissue of plants growing outside the volcanic complex. Isolates were classified within the genera Acinetobacter, Arthrobacter, Bacillus, Burkholderia, Cupriavidus, Enterobacter, Klebsiella, Lysinibacillus, Pantoea, Pseudomonas, Serratia, Stenotrophomonas and Pandoraea. The evaluated strains were able to produce indole compounds, solubilize phosphate, synthesize siderophores, showed ACC deaminase and nitrogenase activity, and they had a positive effect on the growth and development of Capsicum chinense. The wide diversity of bacteria associated to pioneer plants at El Chichón volcano with PGPB qualities represent an alternative for the recovery of eroded environments, and they can be used efficiently as biofertilizers for agricultural crops growing under adverse conditions.

show abstract

Section: Introductionmentioning

confidence: 99%

Bacterial Community with Plant Growth-Promoting Potential Associated to Pioneer Plants from an Active Mexican Volcanic Complex

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

Microbes produce biofilms to support their communities in nutrient-limited environments

Del Mazo-Monsalvo,

Santiago-Martínez

2024

Nat Microbiol

View full text Add to dashboard Cite

Did Homocysteine Take Part in the Start of the Synthesis of Peptides on the Early Earth?

2022

View full text Add to dashboard Cite

Unlike its shorter analog, cysteine, and its methylated derivative, methionine, homocysteine is not today a proteinogenic amino acid. However, this thiol containing amino acid is capable of forming an activated species intramolecularly. Its thiolactone could have made it an interesting molecular building block at the origin of life on Earth. Here we study the cyclization of homocysteine in water and show theoretically and experimentally that in an acidic medium the proportion of thiolactone is significant. This thiolactone easily reacts with amino acids to form dipeptides. We envision that these reactions may help interpret why a methionine residue is introduced at the start of all protein synthesis.

show abstract

Prokaryotic diversity across a pH gradient in the “El Chichón” crater-lake: a naturally thermo-acidic environment

Cited by 3 publications

References 84 publications

Bacterial Community with Plant Growth-Promoting Potential Associated to Pioneer Plants from an Active Mexican Volcanic Complex

Bacterial Community with Plant Growth-Promoting Potential Associated to Pioneer Plants from an Active Mexican Volcanic Complex

Microbes produce biofilms to support their communities in nutrient-limited environments

Did Homocysteine Take Part in the Start of the Synthesis of Peptides on the Early Earth?

Contact Info

Product

Resources

About