Abstract
Abstract The biocontrol potentials of Candida tropicalis YZ 1, C. tropicalis YZ 27 and Saccharomyces cerevisiae YZ 7 against the postharvest anthracnose pathogen Colletotrichum musae were investigated. Treatments with all the three biocontrol agents (1 × 10 8 CFU/ml) significantly reduced the natural anthracnose disease severity of harvested banana fruits stored at ambient condition. Germination and survival of C. musae spores were markedly inhibited by all the three yeast strains in in vitro tests. The niche overlap index ( NOI ) was used to determine the interaction between the antagonists and C. musae, and the results (high NOI values) suggest competitive exclusion of C. musae by the yeast strains. C. tropicalis YZ 27 inoculated on banana wounds exhibited rapid colonization and maintenance of its population on the inoculated site. The biocontrol efficacy was also observed as a function of concentration of the antagonist applied. The fruits treated with C. tropicalis YZ 27, 36 h before pathogen inoculation, showed the best results with 96.0% disease inhibition followed by those treated 24 h before with 84.0% inhibition. The above results point to competition for nutrients and space as the main mechanism of antagonistic action of C. tropicalis YZ 27 against C. musae .
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Claims 10
Claim · model-written summary
Candida tropicalis YZ 1 reduced natural banana anthracnose severity.
- Taxon
- Bananat0
- Treatment
- Candida tropicalis YZ 1e1
- Outcome
- anthracnose disease severitye0
- Direction
- reducede0
Not reportedInteractorComparator
Verbatim
t0“Banana”
e0“Treatments with all the three biocontrol agents (1 × 10 8 CFU/ml) significantly reduced the natural anthracnose disease severity of harvested banana fruits stored at ambient condition.”
e1“Candida tropicalis YZ 1”
Claim · model-written summary
C. tropicalis YZ 27 reduced natural banana anthracnose severity.
Not reportedComparator
Verbatim
t0“Banana”
e0“Treatments with all the three biocontrol agents (1 × 10 8 CFU/ml) significantly reduced the natural anthracnose disease severity of harvested banana fruits stored at ambient condition.”
e1“C. tropicalis YZ 27 and Saccharomyces cerevisiae YZ 7”
Claim · model-written summary
Saccharomyces cerevisiae YZ 7 reduced natural banana anthracnose severity.
- Taxon
- Bananat0
- Treatment
- Saccharomyces cerevisiae YZ 7e1
- Outcome
- anthracnose disease severitye0
- Direction
- reducede0
Not reportedComparator
Verbatim
t0“Banana”
e0“Treatments with all the three biocontrol agents (1 × 10 8 CFU/ml) significantly reduced the natural anthracnose disease severity of harvested banana fruits stored at ambient condition.”
e1“Saccharomyces cerevisiae YZ 7”
Claim · model-written summary
All three yeast strains inhibited germination and survival of C. musae spores in vitro.
Verbatim
t0“Banana”
e0“Germination and survival of C. musae spores were markedly inhibited by all the three yeast strains in in vitro tests.”
Claim · model-written summary
High niche overlap suggested competitive exclusion of C. musae by yeasts.
Verbatim
t0“Banana”
e0“the results (high NOI values) suggest competitive exclusion of C. musae by the yeast strains.”
Claim · model-written summary
C. tropicalis YZ 27 rapidly colonized banana wounds and maintained its population.
- Taxon
- bananae0
- Treatment
- C. tropicalis YZ 27 inoculatede0
- Interactor
- C. tropicalis YZ 27
Candida tropicalise0biocontrol_agent - Outcome
- rapid colonization and maintenance of its populatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“C. tropicalis YZ 27 inoculated on banana wounds exhibited rapid colonization and maintenance of its population on the inoculated site.”
Claim · model-written summary
Biocontrol efficacy varied with antagonist concentration.
Not reportedDirection
Verbatim
t0“Banana”
e0“The biocontrol efficacy was also observed as a function of concentration of the antagonist applied.”
Claim · model-written summary
C. tropicalis YZ 27 applied 36 h before pathogen inoculation inhibited disease by 96.0%.
- Taxon
- Bananat0
- Treatment
- C. tropicalis YZ 27, 36 h before pathogen inoculatione0
- Interactor
- C. tropicalis YZ 27Candida tropicalise0biocontrol_agent
- Outcome
- disease inhibitione0
- Direction
- inhibitione0
- Value
- 96.0%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Banana”
e0“The fruits treated with C. tropicalis YZ 27, 36 h before pathogen inoculation, showed the best results with 96.0% disease inhibition”
Claim · model-written summary
C. tropicalis YZ 27 applied 24 h before inoculation inhibited disease by 84.0%.
- Taxon
- Bananat0
- Treatment
- C. tropicalis YZ 27e1
- Outcome
- inhibitione0
- Direction
- inhibitione0
- Value
- 84.0%e0
- Qualifier
- 24 h beforee0
Not reportedComparator
Verbatim
t0“Banana”
e0“followed by those treated 24 h before with 84.0% inhibition”
e1“C. tropicalis YZ 27 inoculated on banana wounds”
Claim · model-written summary
The authors attribute the antagonistic action to competition for nutrients and space.
- Taxon
- Bananat0
- Interactor
- C. musaee0pathogen
- Second interactor
- C. tropicalis YZ 27Candida tropicalise0biocontrol_agent
- Outcome
- antagonistic action of C. tropicalis YZ 27 against C. musaee0
- Qualifier
- competition for nutrients and spacee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Banana”
e0“competition for nutrients and space as the main mechanism of antagonistic action of C. tropicalis YZ 27 against C. musae”
The same questions in other papers
inoculation · disease · MusaPositive and negative results
14 papers in the same direction as this paper · 22 in the opposite direction
- negative
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See all 37 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.