Epiphytic bacteria on lettuce affect the feeding behavior of an invasive pest slug

Plant–animal interactions are not isolated pairwise relationships but are always accompanied by diverse assemblages of microbes. Additional to direct effects of microorganisms on their hosts, recent investigations demonstrated that bacteria associated with plants can modify the behavior of organisms...

Full description

Bibliographic Details
Main Authors: Birte Peters, Manfred Türke, Robert R. Junker
Format: Article
Language:English
Published: Polish Botanical Society 2017-03-01
Series:Acta Agrobotanica
Subjects:
Online Access:https://pbsociety.org.pl/journals/index.php/aa/article/view/6863
_version_ 1811269886698061824
author Birte Peters
Manfred Türke
Robert R. Junker
author_facet Birte Peters
Manfred Türke
Robert R. Junker
author_sort Birte Peters
collection DOAJ
description Plant–animal interactions are not isolated pairwise relationships but are always accompanied by diverse assemblages of microbes. Additional to direct effects of microorganisms on their hosts, recent investigations demonstrated that bacteria associated with plants can modify the behavior of organisms of higher trophic levels. However, in the context of herbivory, functions of non-phytopathogenic bacteria colonizing leaf surfaces remain understudied. This study showed that naturally occurring epiphytic bacteria affect the feeding behavior of a generalist herbivore. Epiphytic bacteria isolated from leaves of Lactuca sativa var. capitata were screened for their potential to influence feeding choices of the slug Arion vulgaris. Cultivated bacteria were inoculated in artificial food substrates or on sterile leaves of gnotobiotic lettuce plants and were offered to slugs in different behavioral bioassays. A large proportion of bacterial strains tested induced behavioral alterations in the feeding choices of slugs. Behavioral responses of slugs were further modified by antibiotic treatment of slugs prior to choice tests indicating that both bacteria associated with plants and animals affect plant–animal interactions. Our results emphasize the important role of bacteria in plant–animal interactions and suggest a prominent role of bacteria in herbivory in natural, horticultural, and agricultural systems.
first_indexed 2024-04-12T21:51:03Z
format Article
id doaj.art-b203f0494df641cd858a15ea3df758e5
institution Directory Open Access Journal
issn 2300-357X
language English
last_indexed 2024-04-12T21:51:03Z
publishDate 2017-03-01
publisher Polish Botanical Society
record_format Article
series Acta Agrobotanica
spelling doaj.art-b203f0494df641cd858a15ea3df758e52022-12-22T03:15:30ZengPolish Botanical SocietyActa Agrobotanica2300-357X2017-03-0170110.5586/aa.17086790Epiphytic bacteria on lettuce affect the feeding behavior of an invasive pest slugBirte Peters0Manfred Türke1Robert R. Junker2Department of Ecology and Evolution, University of Salzburg, Hellbrunnerstr. 34, 5020 SalzburgGerman Centre for Integrative Biodiversity Research (iDiv) Halle–Jena–Leipzig, Deutscher Platz 5e, 04103 Leipzig; 3 Institute of Biology, Leipzig University, Johannisallee 21, 04103 LeipzigDepartment of Ecology and Evolution, University of Salzburg, Hellbrunnerstr. 34, 5020 SalzburgPlant–animal interactions are not isolated pairwise relationships but are always accompanied by diverse assemblages of microbes. Additional to direct effects of microorganisms on their hosts, recent investigations demonstrated that bacteria associated with plants can modify the behavior of organisms of higher trophic levels. However, in the context of herbivory, functions of non-phytopathogenic bacteria colonizing leaf surfaces remain understudied. This study showed that naturally occurring epiphytic bacteria affect the feeding behavior of a generalist herbivore. Epiphytic bacteria isolated from leaves of Lactuca sativa var. capitata were screened for their potential to influence feeding choices of the slug Arion vulgaris. Cultivated bacteria were inoculated in artificial food substrates or on sterile leaves of gnotobiotic lettuce plants and were offered to slugs in different behavioral bioassays. A large proportion of bacterial strains tested induced behavioral alterations in the feeding choices of slugs. Behavioral responses of slugs were further modified by antibiotic treatment of slugs prior to choice tests indicating that both bacteria associated with plants and animals affect plant–animal interactions. Our results emphasize the important role of bacteria in plant–animal interactions and suggest a prominent role of bacteria in herbivory in natural, horticultural, and agricultural systems.https://pbsociety.org.pl/journals/index.php/aa/article/view/6863Arion vulgarisdual choice experimentherbivorymicroorganismsplant–bacteria–animal interactions
spellingShingle Birte Peters
Manfred Türke
Robert R. Junker
Epiphytic bacteria on lettuce affect the feeding behavior of an invasive pest slug
Acta Agrobotanica
Arion vulgaris
dual choice experiment
herbivory
microorganisms
plant–bacteria–animal interactions
title Epiphytic bacteria on lettuce affect the feeding behavior of an invasive pest slug
title_full Epiphytic bacteria on lettuce affect the feeding behavior of an invasive pest slug
title_fullStr Epiphytic bacteria on lettuce affect the feeding behavior of an invasive pest slug
title_full_unstemmed Epiphytic bacteria on lettuce affect the feeding behavior of an invasive pest slug
title_short Epiphytic bacteria on lettuce affect the feeding behavior of an invasive pest slug
title_sort epiphytic bacteria on lettuce affect the feeding behavior of an invasive pest slug
topic Arion vulgaris
dual choice experiment
herbivory
microorganisms
plant–bacteria–animal interactions
url https://pbsociety.org.pl/journals/index.php/aa/article/view/6863
work_keys_str_mv AT birtepeters epiphyticbacteriaonlettuceaffectthefeedingbehaviorofaninvasivepestslug
AT manfredturke epiphyticbacteriaonlettuceaffectthefeedingbehaviorofaninvasivepestslug
AT robertrjunker epiphyticbacteriaonlettuceaffectthefeedingbehaviorofaninvasivepestslug