Genomic Analysis of Plant-Associated Bacteria and Their Potential in Enhancing Phytoremediation Efficiency

Piński, Artur; Hupert-Kocurek, Katarzyna

doi:10.12911/22998993/74281

Cited by 1 publication

(1 citation statement)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The gene encoding this protein was also found in strains from the Xanthomonas genus to which numerous phytopathogens belong through a BLAST search [ 75 ]. The Stenotrophomonas strains can also contribute to an increase in the phytoremediation efficiency because of their ability to degrade xenobiotics [ 76 ]. Among the analysed S. rhizophila strains, only Stenotrophomonas sp.…”

Section: Discussionmentioning

confidence: 99%

Comparative Genomics of Stenotrophomonas maltophilia and Stenotrophomonas rhizophila Revealed Characteristic Features of Both Species

Piński

Żur

Hasterok

et al. 2020

IJMS

Self Cite

View full text Add to dashboard Cite

Although Stenotrophomonas maltophilia strains are efficient biocontrol agents, their field applications have raised concerns due to their possible threat to human health. The non-pathogenic Stenotrophomonas rhizophila species, which is closely related to S. maltophilia, has been proposed as an alternative. However, knowledge regarding the genetics of S. rhizophila is limited. Thus, the aim of the study was to define any genetic differences between the species and to characterise their ability to promote the growth of plant hosts as well as to enhance phytoremediation efficiency. We compared 37 strains that belong to both species using the tools of comparative genomics and identified 96 genetic features that are unique to S. maltophilia (e.g., chitin-binding protein, mechanosensitive channels of small conductance and KGG repeat-containing stress-induced protein) and 59 that are unique to S. rhizophila (e.g., glucosylglycerol-phosphate synthase, cold shock protein with the DUF1294 domain, and pteridine-dependent dioxygenase-like protein). The strains from both species have a high potential for biocontrol, which is mainly related to the production of keratinases (KerSMD and KerSMF), proteinases and chitinases. Plant growth promotion traits are attributed to the biosynthesis of siderophores, spermidine, osmoprotectants such as trehalose and glucosylglycerol, which is unique to S. rhizophila. In eight out of 37 analysed strains, the genes that are required to degrade protocatechuate were present. While our results show genetic differences between the two species, they had a similar growth promotion potential. Considering the information above, S. rhizophila constitutes a promising alternative for S. maltophilia for use in agricultural biotechnology.

show abstract

Section: Discussionmentioning

confidence: 99%