Abstract
Thirty isolates of Bacillus were collected from chickpea rhizosphere and screened for their in vitro inhibition against root rot (Rhizoctonia bataticola) and wilt (Fusarium oxysporum f.sp. ciceri) pathogens and growth promotion of chickpea. Based on the in vitro inhibition and growth promotion tests, the best eight isolates were selected and PCR-based detection of antibiotics genes viz., surfactin, iturin, fengycin and bacillomycin D was carried out. The isolate which produced all these antibiotics and showed maximum in vitro inhibition (CaB 5) was further used for crude antibiotics extraction and inhibition assays. The presence of antibiotics in crude extract was detected through TLC. The inhibitory effect of the crude extract was proved through agar-well diffusion assay and spore germination inhibition test. From this study, it was inferred that the Bacillus subtilis strain CaB5 was promising in inhibiting the root rot and wilt pathogens of chickpea and enhance seedling vigour. Key words: Biological control, plant growth promotion, surfactin, iturin, fengycin.
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Claims 5
Claim · model-written summary
Bacillus isolate CaB 5 showed the maximum in vitro inhibition of root rot and wilt pathogens of chickpea among the tested isolates.
- Taxon
- chickpea
Cicer arietinume0 - Treatment
- CaB 5e1
- Interactor
- Rhizoctonia bataticola
Macrophomina phaseolinae0pathogen - Second interactor
- CaB 5e1biocontrol_agent
- Outcome
- in vitro inhibitione1
- Direction
- maximume1
- Qualifier
- Fusarium oxysporum f.sp. cicerie0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirty isolates of Bacillus were collected from chickpea rhizosphere and screened for their in vitro inhibition against root rot (Rhizoctonia bataticola) and wilt (Fusarium oxysporum f.sp. ciceri) pathogens”
e1“The isolate which produced all these antibiotics and showed maximum in vitro inhibition (CaB 5)”
Claim · model-written summary
Bacillus isolate CaB 5 was reported to produce all four antibiotics (surfactin, iturin, fengycin, bacillomycin D), with the genes detected by PCR.
- Taxon
- chickpeaCicer arietinume0
- Material
- CaB 5e1
- Outcome
- antibiotics genese2
- Qualifier
- surfactin, iturin, fengycin and bacillomycin De2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirty isolates of Bacillus were collected from chickpea rhizosphere”
e1“The isolate which produced all these antibiotics and showed maximum in vitro inhibition (CaB 5)”
e2“PCR-based detection of antibiotics genes viz., surfactin, iturin, fengycin and bacillomycin D was carried out”
Claim · model-written summary
The presence of antibiotics was detected in the crude extract of the chickpea Bacillus isolate by TLC.
- Taxon
- chickpeaCicer arietinume0
- Outcome
- presence of antibiotics in crude extracte3
- Qualifier
- through TLCe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirty isolates of Bacillus were collected from chickpea rhizosphere”
e3“The presence of antibiotics in crude extract was detected through TLC”
Claim · model-written summary
The crude extract of the isolate had an inhibitory effect on spore germination in an agar-well diffusion assay and a spore germination inhibition test.
- Taxon
- chickpeaCicer arietinume0
- Treatment
- crude extracte4
- Outcome
- spore germinatione4
- Direction
- inhibitorye4
- Qualifier
- agar-well diffusion assaye4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thirty isolates of Bacillus were collected from chickpea rhizosphere”
e4“The inhibitory effect of the crude extract was proved through agar-well diffusion assay and spore germination inhibition test”
Claim · model-written summary
Bacillus subtilis strain CaB5 was judged promising for inhibiting root rot and wilt pathogens of chickpea and for enhancing seedling vigour (author inference).
- Taxon
- chickpeaCicer arietinume5
- Treatment
- Bacillus subtilis strain CaB5e5
- Outcome
- seedling vigoure5
- Direction
- enhancee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“the Bacillus subtilis strain CaB5 was promising in inhibiting the root rot and wilt pathogens of chickpea and enhance seedling vigour”
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See all 25 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.