Abstract
Bacillus amyloliquefaciens strain NJN-6 is an important plant growth-promoting rhizobacteria (PGPR) which can produce secondary metabolites antagonistic to several soil-borne pathogens. In this study, the ability of a bio-organic fertilizer (BIO) containing NJN-6 strain to promote the growth and suppress Fusarium wilt of banana plants was evaluated in a pot experiment. The results showed that the application of BIO significantly decreased the incidence of Fusarium wilt and promoted the growth of banana plants compared to that for the organic fertilizer (OF). To determine the beneficial mechanism of the strain, the colonization of NJN-6 strain on banana roots was evaluated using scanning electron microscopy (SEM). The plant growth-promoting hormones indole-3-acetic acid (IAA) and gibberellin A3 (GA3), along with antifungal lipopeptides iturin A, were detected when the NJN-6 strain was incubated in both Landy medium with additional l-tryptophan and in root exudates of banana plants. In addition, some antifungal volatile organic compounds and iturin A were also detected in BIO. In summary, strain NJN-6 could colonize the roots of banana plants after the application of BIO and produced active compounds which were beneficial for the growth of banana plants.
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Claims 6
Claim · model-written summary
BIO significantly reduced Fusarium wilt incidence compared with organic fertilizer.
- Taxon
- banana plantse0
- Treatment
- application of BIOe0
- Outcome
- incidence of Fusarium wilte0
- Direction
- decreasede0
- Comparator
- organic fertilizer (OF)e0
FusariumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that the application of BIO significantly decreased the incidence of Fusarium wilt and promoted the growth of banana plants compared to that for the organic fertilizer (OF).”
Claim · model-written summary
BIO promoted banana growth compared with organic fertilizer.
Verbatim
e0“The results showed that the application of BIO significantly decreased the incidence of Fusarium wilt and promoted the growth of banana plants compared to that for the organic fertilizer (OF).”
Claim · model-written summary
NJN-6 produced IAA and GA3 in medium and banana root exudates.
Verbatim
e0“The plant growth-promoting hormones indole-3-acetic acid (IAA) and gibberellin A3 (GA3), along with antifungal lipopeptides iturin A, were detected when the NJN-6 strain was incubated in both Landy medium with additional l-tryptophan and in root exudates of banana plants.”
Claim · model-written summary
NJN-6 produced iturin A in medium and banana root exudates.
Verbatim
e0“The plant growth-promoting hormones indole-3-acetic acid (IAA) and gibberellin A3 (GA3), along with antifungal lipopeptides iturin A, were detected when the NJN-6 strain was incubated in both Landy medium with additional l-tryptophan and in root exudates of banana plants.”
Claim · model-written summary
Antifungal volatile organic compounds and iturin A were detected in BIO.
Verbatim
e0“In addition, some antifungal volatile organic compounds and iturin A were also detected in BIO.”
t0“banana plants”
Claim · model-written summary
NJN-6 colonized banana roots after BIO application.
Verbatim
e0“strain NJN-6 could colonize the roots of banana plants after the application of BIO and produced active compounds which were beneficial for the growth of banana plants.”
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See all 91 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.