Gook, Do-Hun;
Jung, Minhyung;
Kim, Soowan;
Lee, Doo-Hyung
Species diversity of environmentally-transmitted bacteria colonizing Riptortus pedestris (Hemiptera: Alydidae) and symbiotic effects of the most dominant bacteria
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Medientyp:
E-Artikel
Titel:
Species diversity of environmentally-transmitted bacteria colonizing Riptortus pedestris (Hemiptera: Alydidae) and symbiotic effects of the most dominant bacteria
Beteiligte:
Gook, Do-Hun;
Jung, Minhyung;
Kim, Soowan;
Lee, Doo-Hyung
Erschienen:
Springer Science and Business Media LLC, 2023
Beschreibung:
<jats:title>Abstract</jats:title><jats:p><jats:italic>Riptortus pedestris</jats:italic> (Hemiptera: Alydidae) establish endosymbiosis with specific bacteria from extremely diverse microbiota in soil. To better understand ecology and evolution of the symbiosis, it is important to characterize bacterial species diversity colonizing <jats:italic>R. pedestris</jats:italic> and evaluate their symbiotic effects. Nonetheless, previous research was limited to a few bacteria strains such as <jats:italic>Caballeronia insecticola</jats:italic>. In this study, second-instar nymphs were provided with field soils and reared to adult. Then, bacteria colonizing the midgut M4 region of <jats:italic>R. pedestris</jats:italic> were analyzed for bacterial species identification based on the 16S rRNA gene. First, a total of 15 bacterial species were detected belonging to Burkholderiaceae. Most of <jats:italic>R. pedestris</jats:italic> were found to harbor single bacterial species, whereas several insects harbored at most two bacterial species simultaneously. Among the total insects harboring single bacterial species, 91.2% harbored genus <jats:italic>Caballeronia</jats:italic>. The most dominant species was <jats:italic>C. jiangsuensis</jats:italic>, not previously documented for symbiotic associations with <jats:italic>R. pedestris</jats:italic>. Second, in laboratory conditions, <jats:italic>C. jiangsuensis</jats:italic> significantly enhanced the development, body size, and reproductive potentials of <jats:italic>R. pedestris</jats:italic>, compared to individuals with no symbiotic bacteria. These results add novel information to better understand symbiotic bacteria community establishing in <jats:italic>R. pedestris</jats:italic> and symbiotic effects on the host insects.</jats:p>