Abstract
The current study investigates the diversity pattern and fungicidal potential of bacterial endophytes isolated from two different organic varieties of tomato plants (V1 and V2). A total of seventy-five bacterial isolates identified by 16S rRNA gene sequencing revealed a majority of genus as Bacillus and one Planococcus , which were grouped into eight different species. The Shannon diversity H’ (1.56), Simpson’s index of diversity (0.93), Magalef’ index (2.23), Evenness (0.96), and Species richness (7) indicated the high endophytic bacterial diversity in the V1 variety of the tomato. Bacterial endophytes isolated from both of the varieties were screened for their antifungal activity against five economically critical fungal pathogens (viz., Botrytis cinerea , Rhizoctonia solani , Fusarium solani , Verticillium lateritium , and Alternaria solani ) of tomato crop through dual culture assay. The data revealed B. siamensis strain NKIT9 as the most potent antagonist, significantly ( p < 0.05) inhibiting the mycelial growth between 75 to 90% against selected fungal pathogens. High bioactivity of lipopeptide extract of strain NKIT9 was recorded against R. solani with minimum IC 50 value of 230 μg/ml. The Ultra Performance Liquid Chromatography-High Definition Mass Spectrometry (UPLC-HDMS) analysis of this lipopeptide extract revealed the presence of Surfactin and Bacillomycin D. Furthermore, in-vitro results showed that the selected bacterial strain significantly minimized the disease incidence in damping-off assay which makes this strain a promising antifungal bio-control agent. Moreover, in the pot experiment the NKIT9 increased the fruit yield by 59.2% compared with the untreated R. solani infested control.
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Claims 7
Claim · model-written summary
Seventy-five tomato endophyte isolates were mostly Bacillus, with one Planococcus, across eight species.
- Taxon
- tomato
Solanum lycopersicumt0 - Interactor
- Bacilluse0symbiont
- Outcome
- bacterial isolatese0
- Value
- seventy-fivee0
- Qualifier
- eight different speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A total of seventy-five bacterial isolates identified by 16S rRNA gene sequencing revealed a majority of genus as Bacillus and one Planococcus , which were grouped into eight different species.”
t0“Tomato Seed Bacterial Endophytes”
Claim · model-written summary
The V1 tomato variety had high endophyte diversity across five indices.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- V1e0
- Interactor
- bacteriale0symbiont
- Outcome
- high endophytic bacterial diversitye0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Shannon diversity H’ (1.56), Simpson’s index of diversity (0.93), Magalef’ index (2.23), Evenness (0.96), and Species richness (7) indicated the high endophytic bacterial diversity in the V1 variety of the tomato.”
Claim · model-written summary
B. siamensis NKIT9 inhibited fungal pathogen mycelial growth by 75 to 90%.
- Taxon
- TomatoSolanum lycopersicumt0
- Interactor
- fungal pathogense0pathogen
- Second interactor
- B. siamensis strain NKIT9Bacillus siamensise0biocontrol_agent
- Outcome
- mycelial growthe0
- Direction
- inhibitinge0
- Value
- 75 to 90%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The data revealed B. siamensis strain NKIT9 as the most potent antagonist, significantly ( p < 0.05) inhibiting the mycelial growth between 75 to 90% against selected fungal pathogens.”
t0“Tomato”
Claim · model-written summary
NKIT9 lipopeptide extract showed its highest bioactivity against R. solani with an IC50 of 230 μg/ml.
- Taxon
- TomatoSolanum lycopersicumt0
- Interactor
- R. solani
Rhizoctonia solanie0pathogen - Second interactor
- strain NKIT9e0biocontrol_agent
- Outcome
- bioactivitye0
- Direction
- Highe0
- Value
- 230 μg/mle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High bioactivity of lipopeptide extract of strain NKIT9 was recorded against R. solani with minimum IC 50 value of 230 μg/ml.”
t0“Tomato”
Claim · model-written summary
NKIT9 lipopeptide extract contained Surfactin and Bacillomycin D.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- presence of Surfactin and Bacillomycin De0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Ultra Performance Liquid Chromatography-High Definition Mass Spectrometry (UPLC-HDMS) analysis of this lipopeptide extract revealed the presence of Surfactin and Bacillomycin D.”
t0“Tomato”
Claim · model-written summary
The selected bacterial strain reduced damping-off disease incidence in vitro.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- selected bacterial straine0
- Interactor
- damping-offe0pathogen
- Outcome
- disease incidencee0
- Direction
- minimizede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Furthermore, in-vitro results showed that the selected bacterial strain significantly minimized the disease incidence in damping-off assay which makes this strain a promising antifungal bio-control agent.”
t0“Tomato”
Claim · model-written summary
NKIT9 increased tomato fruit yield 59.2% versus untreated R. solani infested control in pots.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- NKIT9e0
- Interactor
- R. solaniRhizoctonia solanie0pathogen
- Second interactor
- NKIT9e0biocontrol_agent
- Outcome
- fruit yielde0
- Direction
- increasede0
- Value
- 59.2%e0
- Comparator
- untreated R. solani infested controle0
- Setting
- pot experimente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Moreover, in the pot experiment the NKIT9 increased the fruit yield by 59.2% compared with the untreated R. solani infested control.”
t0“Tomato”
The same questions in other papers
inoculation · disease · Solanum lycopersicum (tomato)Positive and negative results
135 papers in the same direction as this paper · 128 in the opposite direction · 2 reporting no difference from an alternative
- negative
- no effect
- negative
262 papers more in this group
See all 266 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.