Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Unveiling the Secrets of Calcium-Dependent Proteins in Plant-Growth Promoting Rhizobacteria: An Abundance of Discoveries Awaits

Version 1 : Received: 6 September 2023 / Approved: 7 September 2023 / Online: 8 September 2023 (09:52:51 CEST)

A peer-reviewed article of this Preprint also exists.

Agaras, B.C.; Grossi, C.E.M.; Ulloa, R.M. Unveiling the Secrets of Calcium-Dependent Proteins in Plant Growth-Promoting Rhizobacteria: An Abundance of Discoveries Awaits. Plants 2023, 12, 3398. Agaras, B.C.; Grossi, C.E.M.; Ulloa, R.M. Unveiling the Secrets of Calcium-Dependent Proteins in Plant Growth-Promoting Rhizobacteria: An Abundance of Discoveries Awaits. Plants 2023, 12, 3398.

Abstract

The role of calcium ions (Ca2+) is extensively documented and comprehensively understood in eukaryotic organisms. Nevertheless, emerging insights, primarily derived from studies on human pathogenic bacteria, suggest that this ion also holds a pivotal role in prokaryotes. In this review, our primary focus will be on unraveling the intricate Ca2+ toolkit within prokaryotic organisms, with particular emphasis on its implications in plant growth promoting rhizobacteria (PGPR). To pinpoint and identify homologues of Ca2+ channels, pumps, exchangers, and Calcium-Binding Proteins (CaBPs) we undertook an in silico exploration in the genomes of four distinct PGPR strains using as query prokaryotic sequences that were experimentally confirmed to play a role in regulating intracellular calcium concentration ([Ca2+]i) or sensing and transducing this essential cation. These investigations were conducted in Pseudomonas chlororaphis subsp. aurantiaca SMMP3, P. donghuensis SVBP6, Pseudomonas sp. BP01, and Methylobacterium sp. 2A. which have been isolated and characterized within our research laboratories. We also present experimental data to evaluate the influence of exogenous Ca2+ concentrations ([Ca2+]ex) on the growth dynamics of these isolated strains

Keywords

Calcium; Ca2+ channels; Ca2+ pumps; Ca2+ binding proteins (CaBPs); Plant growth-promoting rhizobacteria

Subject

Biology and Life Sciences, Biology and Biotechnology

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.