A survey of Methylobacterium species and strains reveals widespread production and varying profiles of cytokinin phytohormones.

ABSTRACT:

Background

Symbiotic Methylobacterium strains comprise a significant part of plant microbiomes. Their presence enhances plant productivity and stress resistance, prompting classification of these strains as plant growth-promoting bacteria (PGPB). Methylobacteria can synthesize unusually high levels of plant hormones, called cytokinins (CKs), including the most active form, trans-Zeatin (tZ).

Results

This study provides a comprehensive inventory of 46 representatives of Methylobacterium genus with respect to phytohormone production in vitro, including 16 CK forms, abscisic acid (ABA) and indole-3-acetic acid (IAA). High performance-liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) analyses revealed varying abilities of Methylobacterium strains to secrete phytohormon

SUBMITTER: Palberg D 

PROVIDER: S-EPMC8822675 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature