Abstract
Abstract More than 700 isolates of microorganisms occurring naturally on apple trees and fruits during the growing season and on stored fruits were collected. The isolates were screened in vitro and in vivo for antagonistic activity against the post‐harvest pathogens Pezicula malicorticis Qacks.) Nannf. and Nectria galligena Bres. In agar cultures, 50 of these microorganisms were found to be antagonistic against one or both of the pathogens. On apple fruits, inoculated with the pathogens, four bacterial and three fungal isolates were able to reduce lesion development at 20 °C. At 4 °C, however, these isolates had little effect on lesion growth. Only culture filtrates from the fungal isolate 725 reduced lesion growth of both pathogens at 20 °C and of Pezicula malicorticis at 4 °C. Zusammenfassung Identifizierung von Antagonisten zur biologischen Kontrolle der Lagerfäujniserreger Pezicula malicorticis (Jacks.) Nannf. und Nectria galligena Bres. auf Äpfeln Über 700 natürlich vorkommende Mikroorganismen wurden während der Vegeutionsperiode von Apfelbäumen und Früchten und im Winter von gelagerten Äpfeln isoliert. Die Isolate wurden in vitro und in vivo auf antagonistische Aktivität gegenüber den Lagerfäulniserregern Pezicula malicorticis (Jacks.) Nannf. und Nectria galligena Bres. untersucht. 50 dieser Mikroorganismen waxen in Petrischalen‐Tests antagonistisch gegenüber einem der Pathogene oder gegenüber beiden. Auf Äpfeln reduzierten vier Bakterienisolate und drei Pilzisolate die Faulstellenentwicklung der Erreger bei 20°C. Der Einsatz der Isolate bei 4°C hatte jedoch keinen oder nur geringen Einfluß auf die Läsionsentwicklung. Nur das Kulturfiltrat des Pilzisolats 725 reduzierte die Fauistellenentwicklung beider Pathogene bei 20°C und die von Pezicula malicortkis auch bei 4°C.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Fifty collected microorganisms antagonized one or both pathogens in agar.
- Taxon
- Apples
Malus domesticat0 - Outcome
- antagonistic against one or both of the pathogense0
- Value
- 50e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In agar cultures, 50 of these microorganisms were found to be antagonistic against one or both of the pathogens”
t0“Apples”
Claim · model-written summary
Four bacterial isolates reduced lesion development on inoculated apple fruit at 20 °C.
- Taxon
- appleMalus domesticae0
- Treatment
- four bacteriale0
- Outcome
- lesion developmente0
- Direction
- reducee0
- Value
- foure0
- Setting
- 20 °Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On apple fruits, inoculated with the pathogens, four bacterial and three fungal isolates were able to reduce lesion development at 20 °C”
Claim · model-written summary
Three fungal isolates reduced lesion development on inoculated apple fruit at 20 °C.
- Taxon
- appleMalus domesticae0
- Treatment
- three fungal isolatese0
- Outcome
- lesion developmente0
- Direction
- reducee0
- Value
- threee0
- Setting
- 20 °Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On apple fruits, inoculated with the pathogens, four bacterial and three fungal isolates were able to reduce lesion development at 20 °C”
Claim · model-written summary
At 4 °C the isolates had little effect on lesion growth.
- Taxon
- appleMalus domesticat0
- Treatment
- these isolatese0
- Outcome
- lesion growthe0
- Direction
- little effecte0
- Setting
- 4 °Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 4 °C, however, these isolates had little effect on lesion growth”
t0“apple trees”
Claim · model-written summary
Fungal isolate 725 filtrate reduced lesions from both pathogens at 20 °C.
- Taxon
- ApplesMalus domesticat0
- Treatment
- culture filtrates from the fungal isolate 725e0
- Outcome
- lesion growth of both pathogense0
- Direction
- reducede0
- Setting
- 20 °Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Only culture filtrates from the fungal isolate 725 reduced lesion growth of both pathogens at 20 °C”
t0“Apples”
Claim · model-written summary
Fungal isolate 725 filtrate reduced Pezicula malicorticis lesions at 4 °C.
- Taxon
- ApplesMalus domesticat0
- Treatment
- culture filtrates from the fungal isolate 725e0
- Interactor
- Pezicula malicorticis
Neofabraea malicorticise0pathogent1 - Outcome
- lesion growthe0
- Direction
- reducede0
- Setting
- 4 °Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Only culture filtrates from the fungal isolate 725 reduced lesion growth of both pathogens at 20 °C and of Pezicula malicorticis at 4 °C”
t0“Apples”
t1“Pezicula malicorticis”
The same questions in other papers
pathogen product · disease · Malus domestica (apple)Positive and negative results
4 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
4 papers more in this group
See all 8 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.