AUTHOR=Dobrzyński Jakub , Jakubowska Zuzanna , Dybek Barbara 

TITLE=Potential of Bacillus pumilus to directly promote plant growth

JOURNAL=Frontiers in Microbiology

VOLUME=13

YEAR=2022

URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2022.1069053

DOI=10.3389/fmicb.2022.1069053

ISSN=1664-302X

ABSTRACT=<p>Plant Growth-Promoting Bacteria (PGPB) are a promising alternative to conventional fertilization. One of the most interesting PGPB strains, among the spore-forming bacteria of the phylum Firmicutes, is <italic>Bacillus pumilus</italic>. It is a bacterial species that inhabits a wide range of environments and shows resistance to abiotic stresses. So far, several PGPB strains of <italic>B. pumilus</italic> have been described, including <italic>B. pumilus</italic> LZP02, <italic>B. pumilus</italic> JPVS11, <italic>B. pumilus</italic> TUAT-1, <italic>B. pumilus</italic> TRS-3, and <italic>B. pumilus</italic> EU927414. These strains have been shown to produce a wide range of phytohormones and other plant growth-promoting substances. Therefore, they can affect various plant properties, including biometric traits, substance content (amino acids, proteins, fatty acids), and oxidative enzymes. Importantly, based on a study with <italic>B. pumilus</italic> WP8, it can be concluded that this bacterial species stimulates plant growth when the native microbiota of the inoculated soil is altered. However, there is still a lack of research with deeper insights into the structure of the native microbial community (after <italic>B. pumilus</italic> application), which would provide a better understanding of the functioning of this bacterial species in the soil and thus increase its effectiveness in promoting plant growth.</p>