Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Predatory Earwigs are Attracted by Herbivore-Induced Plant Volatiles Linked with Plant Growth-Promoting Rhizobacteria

Full text
Author(s):
Bell, Kim [1] ; Naranjo-Guevara, Natalia [2, 3] ; dos Santos, Rafaela C. [2] ; Meadow, Richard [1, 4] ; Bento, Jose M. S. [2]
Total Authors: 5
Affiliation:
[1] Norwegian Univ Life Sci, Fac Biosci, Dept Plant Sci, N-1433 As - Norway
[2] Univ Sao Paulo, Luiz de Queiroz Coll Agr, Dept Entomol & Acarol, BR-13418900 Piracicaba, SP - Brazil
[3] Fontys Univ Appl Sci, Fontys Int Business Sch Venlo, NL-5912 Venlo - Netherlands
[4] Naranjo-Guevara, Natalia, Fontys Univ Appl Sci, Fontys Int Business Sch Venlo, NL-5912 Venlo, Netherlands.Bell, Kim, Norwegian Univ Life Sci, Fac Biosci, Dept Plant Sci, N-1433 As - Norway
Total Affiliations: 4
Document type: Journal article
Source: INSECTS; v. 11, n. 5 MAY 2020.
Web of Science Citations: 0
Abstract

Plant-associated microbes may induce plant defenses against herbivores. Plants, in turn, can attract natural enemies, such as predators, using herbivore-induced plant volatiles. Intricate communication occurs between microorganisms, plants, and insects. Given that many aspects related to mechanisms involved in this symbiotic system remain unknown, we evaluated how beneficial soil-borne microorganisms can affect the interactions between plants, herbivores, and natural enemies. For this study, we established a multitrophic system composed of the predatory earwig Doru luteipes (Dermaptera: Forficulidae), arugula (Eruca sativa, Brassicaceae) as the host plant, Plutella xylostella (Lepidoptera: Plutellidae) larvae as a specialist herbivore, Spodoptera frugiperda (Lepidoptera: Noctuidae) larvae as a generalist herbivore, and Bacillus amyloliquefaciens as the plant growth-promoting rhizobacteria (PGPR), in a series of nocturnal olfactometry experiments. By assessing earwig preference towards herbivore-induced and PGPR-inoculated plants in different combinations, we showed that the interaction between rhizobacteria, plants, and herbivores can affect the predatory earwig's behavior. Furthermore, we observed a synergistic effect in which earwigs were attracted by plants that presented as PGPR inoculated and herbivore damaged, for both specialist and generalist herbivores. Our findings help fill the important knowledge gap regarding multitrophic interactions and should provide useful guidelines for their application to agricultural fields. (AU)

FAPESP's process: 14/50871-0 - INCT 2014: National Institute of Science and Technology of Semiochemicals in Agriculture
Grantee:José Roberto Postali Parra
Support Opportunities: Research Projects - Thematic Grants