Abstract
ABSTRACT A mechanism that could contribute to the suppression of Botrytis cinerea during pathogen sporulation was examined in this study. Yeasts capable of binding to B. cinerea were formulated with a cellulose carrier and applied to sporulating colonies of the pathogen. The particles from this yeast/cellulose product attached to B. cinerea conidia in the sporulating colony. Inoculum from treated colonies was harvested and applied to tomato stem tissue to test for subsequent pathogenicity. Disease development from inoculum obtained from cultures that had been treated with Trichosporon pullulans was significantly retarded (P = 0.0001) compared with cellulose-only controls. However, between 5 and 11% of conidia applied were attached to yeast cells. The removal of conidia not attached to yeast resulted in inoculum composed of >90% of conidia attached to yeast, and from this inoculum, disease development was significantly retarded (P < 0.05). When inoculum from treated B. cinerea colonies was applied to nutrient limiting agar and then incubated, the B. cinerea conidia germinated, and yeast cells infested the new hyphal growth. Constraints of the formulation of the yeast used in this study, and the implications of this vectoring approach for the suppression of B. cinerea during pathogen sporulation are discussed.
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Claims 5
Claim · model-written summary
Yeast-cellulose particles attached to Botrytis conidia.
- Interactor
- B. cinerea
Botrytis cinereae0pathogen - Outcome
- particles from this yeast/cellulose product attached to B. cinerea conidiae0
Not reportedTaxon
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The particles from this yeast/cellulose product attached to B. cinerea conidia in the sporulating colony”
Claim · model-written summary
Inoculum from Trichosporon-treated cultures significantly retarded tomato disease versus cellulose controls.
- Taxon
- tomato
Solanum lycopersicume0 - Organ / stage
- stem tissuee0
- Treatment
- treated with Trichosporon pullulanse1
- Interactor
- Trichosporon pullulansTausonia pullulanse1biocontrol_agent
- Outcome
- Disease developmente1
- Direction
- retardede1
- Comparator
- cellulose-only controlse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculum from treated colonies was harvested and applied to tomato stem tissue”
e1“Disease development from inoculum obtained from cultures that had been treated with Trichosporon pullulans was significantly retarded (P = 0.0001) compared with cellulose-only controls”
Claim · model-written summary
Between 5% and 11% of applied conidia were attached to yeast cells.
Not reportedTaxon
Verbatim
e0“between 5 and 11% of conidia applied were attached to yeast cells”
Claim · model-written summary
Enriching inoculum to more than 90% yeast-attached conidia significantly retarded tomato disease.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- inoculum composed of >90% of conidia attached to yeaste0
- Outcome
- disease developmente0
- Direction
- retardede0
- Value
- >90%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The removal of conidia not attached to yeast resulted in inoculum composed of >90% of conidia attached to yeast, and from this inoculum, disease development was significantly retarded (P < 0.05)”
e1“applied to tomato stem tissue”
Claim · model-written summary
Botrytis conidia germinated on nutrient-limiting agar, and yeast infested new hyphae.
- Interactor
- B. cinereaBotrytis cinereae0pathogen
- Outcome
- B. cinerea conidia germinated, and yeast cells infested the new hyphal growthe0
Not reportedTaxon
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the B. cinerea conidia germinated, and yeast cells infested the new hyphal growth”
The same questions in other papers
Tausonia pullulans · disease · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- negative
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.