Journal article
Bacterial endophytes from Chukrasia tabularis can antagonize Hypsipyla robusta larvae
Phytoparasitica
2022
Abstract
Damage by the shoot-tip borer Hypsipyla robusta (Lepidoptera: Pyralidae) has limited the commercial cultivation of Chukrasia tabularis (Meliaceae) in many parts of the world. Recently, a number of C. tabularis families in Vietnam have shown field resistance to H. robusta. This study explores whether endophytic bacteria in C. tabularis can inhibit the development of H. robusta. Endophytic bacteria from resistant trees had strong repellent (73–97%) and antifeedant (74–84%) activity with H. robusta in laboratory trials. The most biologically active isolates were identified as Bacillus bombysepticus (4 isolates) and Bacillus velezensis (2 isolates) based on phylogenetic analysis of 16S rRNA, gyrB, pycA and rpoB. Fifteen days after releasing H. robusta larvae in a nursery trial, spray inoculation with bacterial solutions from resistant trees reduced shoot tip damage by over 60% compared with the control. Spray treatments with bacterial endophytes from susceptible trees were less effective. These findings have application to the future development of biological control of H. robusta, and the selection of resistant trees for breeding.
Details
- Title
- Bacterial endophytes from Chukrasia tabularis can antagonize Hypsipyla robusta larvae
- Authors/Creators
- T.T.L. Tra (Author/Creator)N.M. Chi (Author/Creator)D.T.K. Anh (Author/Creator)P.Q. Thu (Author/Creator)N.P. Nhung (Author/Creator)B. Dell (Author/Creator)
- Publication Details
- Phytoparasitica
- Publisher
- Springer Nature
- Identifiers
- 991005540463407891
- Murdoch Affiliation
- School of Agricultural Sciences
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.97 Plant Pathology
- 3.97.556 Microbial Biocontrol
- Web Of Science research areas
- Agronomy
- Entomology
- Plant Sciences
- ESI research areas
- Plant & Animal Science