Potential of Novel Sequence Type of Burkholderiacenocepacia for Biological Control of Root Rot of Maize (Zeamays L.) Caused by Fusarium temperatum

International Journal of Molecular Sciences
Setu Bazie TageleYoun Su Lee

Abstract

In this study, two Burkholderia strains, strain KNU17BI2 and strain KNU17BI3, were isolated from maize rhizospheric soil, South Korea. The 16S rRNA gene and multilocus sequence analysis and typing (MLSA-MLST) were used for the identification of the studied strains. Strain KNU17BI2, which belonged to Burkholderia cenocepacia, was of a novel sequence type (ST) designated ST-1538, while strain KNU17BI3 had a similar allelic profile with the seven loci of Burkholderia contaminans strain LMG 23361. The strains were evaluated in vitro for their specific plant growth promoting (PGP) traits, such as zinc solubilization, phosphate solubilization, ammonia production, 1-aminocyclopropane-1-carboxylate (ACC) deaminase activity, indole acetic acid (IAA) production, siderophore, and hydrolytic enzyme activity. Interestingly, the strains exhibited a positive effect on all of the tested parameters. The strains also showed broad-spectrum antifungal activity against economically important phytopathogens in the dual culture assay. Furthermore, the strains were evaluated under greenhouse conditions for their in vivo effect to promote plant growth and to suppress the root rot of maize that is caused by Fusarium temperatum on four Korean maize culti...Continue Reading

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Citations

Feb 12, 2021·FEMS Microbiology Ecology·Lidiane Figueiredo Dos SantosFabio Lopes Olivares
Jun 11, 2021·Frontiers in Microbiology·Asma ImranMuhammad Ahmad

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Datasets Mentioned

BETA
KNU17BI3

Methods Mentioned

BETA
PCR

Software Mentioned

BLAST
SAS
MEGA
MEGA6

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