Abstract
Currently, there is little knowledge of the establishment of repeatedly applied biological control agents (BCAs) in the phyllosphere of plants and, in particular, their interactions with the resident microbiome. Under field conditions, the BCA Aureobasidium pullulans was applied as a model organism to organically grown strawberries during two subsequent years (2011, 2012), either as single strain treatment or with the co-application of the entomopathogenic fungus Beauveria bassiana. Fungal and bacterial communities of strawberry leaves were investigated by means of plate counts and 454 pyrosequencing. The establishment of the introduced A. pullulans strains considerably differed between the two years, presumably due to distinct environmental conditions. Short-term and long-term effects of BCA applications on the composition and diversity of fungal communities could be observed as a result of successful establishment of A. pullulans, in 2011, showing, for instance, reduced diversity of fungal communities by competitive displacement shortly after BCA introduction. Due to considerable dynamics in untreated resident microbial communities in the phyllosphere in general, however, we suggest that even the effects caused by the applied BCA preparations in 2011 are negligible under practical conditions.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 4
Claim · model-written summary
Aureobasidium pullulans establishment on strawberries differed between years.
- Taxon
- strawberries
_single2.jpg?width=60)
Fragaria ×ananassae1 - Interactor
- Aureobasidium pullulans
Aureobasidium pullulanse1biocontrol_agent - Outcome
- establishment of the introduced A. pullulans strainse0
- Direction
- differede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“The establishment of the introduced A. pullulans strains considerably differed between the two years”
e1“Aureobasidium pullulans was applied as a model organism to organically grown strawberries”
Claim · model-written summary
BCA applications affected fungal community composition and diversity in 2011.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- BCA applicationse0
- Interactor
- A. pullulansAureobasidium pullulanse0biocontrol_agent
- Outcome
- composition and diversity of fungal communitiese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Short-term and long-term effects of BCA applications on the composition and diversity of fungal communities could be observed as a result of successful establishment of A. pullulans, in 2011”
e1“Fungal and bacterial communities of strawberry leaves”
Claim · model-written summary
BCA introduction reduced fungal community diversity shortly after application.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- BCA introductione0
- Interactor
- Aureobasidium pullulansAureobasidium pullulanse2biocontrol_agent
- Outcome
- diversity of fungal communitiese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced diversity of fungal communities by competitive displacement shortly after BCA introduction”
e1“strawberry leaves”
e2“Aureobasidium pullulans was applied”
Claim · model-written summary
The authors suggest the 2011 BCA effects are negligible under practical conditions.
- Taxon
- strawberryFragaria ×ananassae1
- Outcome
- effects caused by the applied BCA preparations in 2011 are negligible under practical conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we suggest that even the effects caused by the applied BCA preparations in 2011 are negligible under practical conditions”
e1“strawberry leaves”