Methylobacterium sp. 2A Is a Plant Growth-Promoting Rhizobacteria That Has the Potential to Improve Potato Crop Yield Under Adverse Conditions

Frontiers in Plant Science
Cecilia Eugenia María GrossiRita María Ulloa

Abstract

A Gram-negative pink-pigmented bacillus (named 2A) was isolated from Solanum tuberosum L. cv. Desirée plants that were strikingly more developed, presented increased root hair density, and higher biomass than other potato lines of the same age. The 16S ribosomal DNA sequence, used for comparative gene sequence analysis, indicated that strain 2A belongs to the genus Methylobacterium. Nucleotide identity between Methylobacterium sp. 2A sequenced genome and the rest of the species that belong to the genus suggested that this species has not been described so far. In vitro, potato plants inoculated with Methylobacterium sp. 2A had a better performance when grown under 50 mM NaCl or when infected with Phytophthora infestans. We inoculated Methylobacterium sp. 2A in Arabidopsis thaliana roots and exposed these plants to salt stress (75 mM NaCl). Methylobacterium sp. 2A-inoculated plants, grown in control or salt stress conditions, displayed a higher density of lateral roots (p < 0.05) compared to noninoculated plants. Moreover, under salt stress, they presented a higher number of leaves and larger rosette diameter. In dual confrontation assays, Methylobacterium sp. 2A displayed biocontrol activity against P. infestans, Botrytis ciner...Continue Reading

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Citations

Mar 3, 2021·Plant Cell Reports·Cecilia Eugenia María GrossiRita María Ulloa
Feb 24, 2021·World Journal of Microbiology & Biotechnology·Vijaya RaniRajeev Kaushik
Apr 3, 2021·Plant Physiology and Biochemistry : PPB·Marcelo Daniel SciorraRita María Ulloa
Apr 2, 2021·Frontiers in Microbiology·Swati BijlaniKasthuri Venkateswaran
Jul 9, 2021·Microbes and Environments·Wataru YazakiAkifumi Sugiyama
Nov 6, 2021·Frontiers in Microbiology·Ola AlessaAkio Tani

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Datasets Mentioned

BETA
MG818293.1
JCM
2831
PRJNA560067

Methods Mentioned

BETA
environmental stresses
RSA
Whole Genome Sequencing
salt stress

Software Mentioned

SnapGene
SPAdes
MEGA7 ( Molecular Evolutionary Genetics Analysis
GraphPad Prism
antiSMASH
RAST
Pathologic
Fiji
SSPACE
EzBioCloud

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