Composition, Structure, and PGPR Traits of the Rhizospheric Bacterial Communities Associated With Wild and Cultivated Echinocactus platyacanthus and Neobuxbaumia polylopha

Frontiers in Microbiology
María Eugenia de la Torre-HernándezHugo C Ramírez-Saad

Abstract

The Queretaro semi-desert in central Mexico is the most southern extension of the Chihuahua desert. This semi-arid zone shelters a vast cactus diversity with many endemic species. Currently, two cacti species from this semi-desert namely, Echinocactus platyacanthus and Neobuxbaumia polylopha are under a threat to their survival. So far, there are no reports on the bacterial communities associated with these plants. In this study, we assessed the structure and diversity of the rhizospheric bacterial communities associated with Echinocactus platyacanthus and Neobuxbaumia polylopha growing in wild and cultivated conditions. Samples of E. platyacanthus were also approached with culture-based methods in search of isolates with plant growth promoting abilities. Metagenomic DNA was extracted from rhizospheric samples and used for Illumina sequencing of the 16S rRNA gene. α-diversity and amplicon sequence variant (ASV) richness were higher in both groups of E. platyacanthus samples. All samples accounted for 14 phyla, and the major 6 were common to all treatments. The dominant phyla in all four sample groups were Actinobacteria and Proteobacteria. Analysis at family and genus levels showed association patterns with the cultivated sampl...Continue Reading

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Citations

Feb 2, 2021·Frontiers in Microbiology·Maria Leticia BonatelliMaria Carolina Quecine
May 18, 2021·Computational and Structural Biotechnology Journal·Jia WangMitchel J Doktycz

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Datasets Mentioned

BETA
MN062927
MN062936
MN062950
MN443616
MN062946
MN443613

Methods Mentioned

BETA
environmental stress
PCR
electrophoresis
Illumina sequencing

Software Mentioned

R package Phyloseq
DADA2
EZ Biocloud
BETADISPER
Phyloseq
SEMARNAT
InteractiVenn
EZ Taxon
BioConductor package edgeR
R

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