Paper · 1995 · Phytopathology

Alginate Prill Formulations ofTalaromyces flavuswith Organic Carriers for Biocontrol ofVerticillium dahliae

D. Fravel

15
claims
36
verbatim quotes
42
citations
2
research areas
—
Not open access

Abstract

Pyrophyllite clay (Pyrax), milled chitin, corn cobs, fish meal, neem cake, peanut hulls, soy fiber, and wheat bran were used to make alginate prill with or without ascospores of Talaromyces flavus. The formulations were compared for their ability to induce T. flavus to control Verticillium wilt of eggplant in the greenhouse in field soil and to increase populations of T. flavus in three field soils (two loamy sands, one silty clay). Survival of T. flavus in prill at 5 C or ambient temperature (22-24 C), as well as the carbon (C) and nitrogen (N) contents of the prill, were also determined. Two formulations (corn cobs and pyrophyllite) consistently enhanced biocontrol activity. In treatments without T. flavus, half of all plants were wilted 59 days after transplanting whereas more than half of the plants treated with T. flavus in either pyrophyllite or corn cob prill remained symptomless 90 days after transplanting. In some experiments, T. flavus in soy fiber prill delayed the median time for symptom development by about 10 days. Experiments on survival and proliferation in soils indicated that there were highly significant interactions among carrier, soil, and sampling time. These interactions indicate that the formulations performed differently in different soils. Populations of T. flavus from some prill × soil × combinations increased during the 18-wk experiment while populations from other combinations remained constant or decreased. Populations of T. flavus in two soils (Hatboro loamy sand, silty clay) amended with wheat-bran prill were greater than those with other formulations in the first 2 wk of assay in these two soils. Populations of T. flavus in the loamy sand amended with peanut hull prill were greater than those from other prill at the 8- and 12-wk samplings in this soil. Prill with pyrophyllite and corn cobs had significantly greater C/N ratios than prill with other carriers. Carriers significantly affected survival of T. flavus at 5 C and at ambient temperature. Survival at both temperatures was best in prill formulated with corn cobs, soy fiber and peanut hulls. Temperature did not alter the survival pattern during the 18-wk sampling period

Abstract from the paper’s OpenAlex record; open copy licensed public-domain. Read at the source ↗

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Claims 15

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Corn-cob formulation consistently enhanced biocontrol activity.

Taxon
eggplantSolanum melongenae1
Treatment
corn cobse0
Interactor
Talaromyces flavusTalaromyces flavuse2biocontrol_agent
Outcome
biocontrol activitye0
Direction
enhancede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Two formulations (corn cobs and pyrophyllite) consistently enhanced biocontrol activity.”

✓ located verbatim in the source · abstract, characters 597–685 · show in text ↑
e1

“Verticillium wilt of eggplant in the greenhouse in field soil”

✓ located verbatim in the source · abstract, characters 278–339 · show in text ↑
e2

“ascospores of Talaromyces flavus”

✓ located verbatim in the source · abstract, characters 164–196 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pyrophyllite formulation consistently enhanced biocontrol activity.

Taxon
eggplantSolanum melongenae1
Treatment
pyrophyllitee0
Interactor
Talaromyces flavusTalaromyces flavuse2biocontrol_agent
Outcome
biocontrol activitye0
Direction
enhancede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Two formulations (corn cobs and pyrophyllite) consistently enhanced biocontrol activity.”

✓ located verbatim in the source · abstract, characters 597–685 · show in text ↑
e1

“Verticillium wilt of eggplant in the greenhouse in field soil”

✓ located verbatim in the source · abstract, characters 278–339 · show in text ↑
e2

“ascospores of Talaromyces flavus”

✓ located verbatim in the source · abstract, characters 164–196 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Half of eggplants without T. flavus wilted by day 59.

Taxon
eggplantSolanum melongenae1
Treatment
without T. flavuse0
Interactor
T. flavusTalaromyces flavuse0biocontrol_agent
Outcome
plants were wiltede0
Value
halfe0
Qualifier
59 days after transplantinge0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In treatments without T. flavus, half of all plants were wilted 59 days after transplanting”

✓ located verbatim in the source · abstract, characters 686–777 · show in text ↑
e1

“Verticillium wilt of eggplant in the greenhouse in field soil”

✓ located verbatim in the source · abstract, characters 278–339 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

More than half of eggplants treated with T. flavus in pyrophyllite prill remained symptomless at day 90.

Taxon
eggplantSolanum melongenae1
Treatment
T. flavus in either pyrophyllite or corn cob prille0
Interactor
T. flavusTalaromyces flavuse0biocontrol_agent
Outcome
remained symptomlesse0
Value
more than halfe0
Qualifier
90 days after transplantinge0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“more than half of the plants treated with T. flavus in either pyrophyllite or corn cob prill remained symptomless 90 days after transplanting”

✓ located verbatim in the source · abstract, characters 786–927 · show in text ↑
e1

“Verticillium wilt of eggplant in the greenhouse in field soil”

✓ located verbatim in the source · abstract, characters 278–339 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T. flavus in soy-fiber prill delayed median symptom onset by about 10 days in some experiments.

Taxon
eggplantSolanum melongenae1
Treatment
T. flavus in soy fiber prille0
Interactor
T. flavusTalaromyces flavuse0biocontrol_agent
Outcome
median time for symptom developmente0
Direction
delayede0
Value
about 10 dayse0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In some experiments, T. flavus in soy fiber prill delayed the median time for symptom development by about 10 days.”

✓ located verbatim in the source · abstract, characters 929–1044 · show in text ↑
e1

“Verticillium wilt of eggplant in the greenhouse in field soil”

✓ located verbatim in the source · abstract, characters 278–339 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Carrier, soil, and sampling time had highly significant interactions in T. flavus proliferation.

Taxon
eggplantSolanum melongenae1
Treatment
carriere0
Interactor
T. flavusTalaromyces flavuse2biocontrol_agent
Outcome
interactions among carrier, soil, and sampling timee0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“there were highly significant interactions among carrier, soil, and sampling time”

✓ located verbatim in the source · abstract, characters 1111–1192 · show in text ↑
e1

“Verticillium wilt of eggplant in the greenhouse in field soil”

✓ located verbatim in the source · abstract, characters 278–339 · show in text ↑
e2

“In treatments without T. flavus, half of all plants were wilted 59 days after transplanting”

✓ located verbatim in the source · abstract, characters 686–777 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Some T. flavus populations increased across the 18-week soil assay.

Taxon
eggplantSolanum melongenae1
Interactor
T. flavusTalaromyces flavuse0biocontrol_agent
Outcome
Populations of T. flavuse0
Direction
increasede0
Qualifier
18-wk experimente0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Populations of T. flavus from some prill × soil × combinations increased during the 18-wk experiment”

✓ located verbatim in the source · abstract, characters 1286–1386 · show in text ↑
e1

“Verticillium wilt of eggplant in the greenhouse in field soil”

✓ located verbatim in the source · abstract, characters 278–339 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Other T. flavus populations remained constant or decreased across the assay.

Taxon
eggplantSolanum melongenae1
Interactor
T. flavusTalaromyces flavuse2biocontrol_agent
Outcome
populationse0
Direction
remained constant or decreasede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“populations from other combinations remained constant or decreased”

✓ located verbatim in the source · abstract, characters 1393–1459 · show in text ↑
e1

“Verticillium wilt of eggplant in the greenhouse in field soil”

✓ located verbatim in the source · abstract, characters 278–339 · show in text ↑
e2

“In treatments without T. flavus, half of all plants were wilted 59 days after transplanting”

✓ located verbatim in the source · abstract, characters 686–777 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Wheat-bran prill produced greater T. flavus populations in two soils during the first two weeks.

Taxon
eggplantSolanum melongenae1
Treatment
wheat-bran prille0
Interactor
T. flavusTalaromyces flavuse0biocontrol_agent
Outcome
Populations of T. flavuse0
Direction
greatere0
Qualifier
first 2 wk of assaye0
Comparator
other formulationse0
Setting
Hatboro loamy sand, silty claye0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Populations of T. flavus in two soils (Hatboro loamy sand, silty clay) amended with wheat-bran prill were greater than those with other formulations in the first 2 wk of assay”

✓ located verbatim in the source · abstract, characters 1461–1636 · show in text ↑
e1

“Verticillium wilt of eggplant in the greenhouse in field soil”

✓ located verbatim in the source · abstract, characters 278–339 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Peanut-hull prill produced greater T. flavus populations in loamy sand at weeks 8 and 12.

Taxon
eggplantSolanum melongenae1
Treatment
peanut hull prille0
Interactor
T. flavusTalaromyces flavuse0biocontrol_agent
Outcome
Populations of T. flavuse0
Direction
greatere0
Qualifier
8- and 12-wk samplingse0
Comparator
other prille0
Setting
loamy sande0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Populations of T. flavus in the loamy sand amended with peanut hull prill were greater than those from other prill at the 8- and 12-wk samplings”

✓ located verbatim in the source · abstract, characters 1657–1801 · show in text ↑
e1

“Verticillium wilt of eggplant in the greenhouse in field soil”

✓ located verbatim in the source · abstract, characters 278–339 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Pyrophyllite prill had a significantly greater carbon-to-nitrogen ratio than other carriers.

Taxon
eggplantSolanum melongenae1
Treatment
pyrophyllitee0
Outcome
C/N ratiose0
Direction
greatere0
Comparator
other carrierse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Prill with pyrophyllite and corn cobs had significantly greater C/N ratios than prill with other carriers”

✓ located verbatim in the source · abstract, characters 1816–1921 · show in text ↑
e1

“Verticillium wilt of eggplant in the greenhouse in field soil”

✓ located verbatim in the source · abstract, characters 278–339 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Corn-cob prill had a significantly greater carbon-to-nitrogen ratio than other carriers.

Taxon
eggplantSolanum melongenae1
Treatment
corn cobse0
Outcome
C/N ratiose0
Direction
greatere0
Comparator
other carrierse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Prill with pyrophyllite and corn cobs had significantly greater C/N ratios than prill with other carriers”

✓ located verbatim in the source · abstract, characters 1816–1921 · show in text ↑
e1

“Verticillium wilt of eggplant in the greenhouse in field soil”

✓ located verbatim in the source · abstract, characters 278–339 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Carrier identity significantly affected T. flavus survival at 5 C and ambient temperature.

Taxon
eggplantSolanum melongenae1
Treatment
Carrierse0
Interactor
T. flavusTalaromyces flavuse0biocontrol_agent
Outcome
survival of T. flavuse0
Qualifier
5 C and at ambient temperaturee0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Carriers significantly affected survival of T. flavus at 5 C and at ambient temperature”

✓ located verbatim in the source · abstract, characters 1923–2010 · show in text ↑
e1

“Verticillium wilt of eggplant in the greenhouse in field soil”

✓ located verbatim in the source · abstract, characters 278–339 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

T. flavus survival was best in corn-cob, soy-fiber, and peanut-hull prill at both temperatures.

Taxon
eggplantSolanum melongenae1
Treatment
corn cobs, soy fiber and peanut hullse0
Interactor
T. flavusTalaromyces flavuse2biocontrol_agent
Outcome
Survivale0
Direction
beste0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Survival at both temperatures was best in prill formulated with corn cobs, soy fiber and peanut hulls”

✓ located verbatim in the source · abstract, characters 2012–2113 · show in text ↑
e1

“Verticillium wilt of eggplant in the greenhouse in field soil”

✓ located verbatim in the source · abstract, characters 278–339 · show in text ↑
e2

“In treatments without T. flavus, half of all plants were wilted 59 days after transplanting”

✓ located verbatim in the source · abstract, characters 686–777 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Temperature did not alter the T. flavus survival pattern over 18 weeks.

Taxon
eggplantSolanum melongenae1
Treatment
Temperaturee0
Interactor
T. flavusTalaromyces flavuse2biocontrol_agent
Outcome
survival patterne0
Direction
did not altere0
Qualifier
18-wk sampling periode0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Temperature did not alter the survival pattern during the 18-wk sampling period”

✓ located verbatim in the source · abstract, characters 2115–2194 · show in text ↑
e1

“Verticillium wilt of eggplant in the greenhouse in field soil”

✓ located verbatim in the source · abstract, characters 278–339 · show in text ↑
e2

“In treatments without T. flavus, half of all plants were wilted 59 days after transplanting”

✓ located verbatim in the source · abstract, characters 686–777 · show in text ↑

Talaromyces flavus · disease · Solanum melongena (eggplant)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 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.