Strohm, Erhard and Herzner, Gudrun and Ruther, Joachim and Kaltenpoth, Martin and Engl, Tobias (2019) Nitric oxide radicals are emitted by wasp eggs to kill mold fungi. ELIFE, 8: e43718. ISSN 2050-084X,
Full text not available from this repository. (Request a copy)Abstract
Detrimental microbes caused the evolution of a great diversity of antimicrobial defenses in plants and animals. Insects developing underground seem particularly threatened. Here we show that the eggs of a solitary digger wasp, the European beewolf Philanthus triangulum, emit large amounts of gaseous nitric oxide (NO center dot) to protect themselves and their provisions, paralyzed honeybees, against mold fungi. We provide evidence that a NO-synthase (NOS) is involved in the generation of the extraordinary concentrations of nitrogen radicals in brood cells (similar to 1500 ppm NO center dot and its oxidation product NO2 center dot). Sequencing of the beewolf NOS gene revealed no conspicuous differences to related species. However, due to alternative splicing, the NOS-mRNA in beewolf eggs lacks an exon near the regulatory domain. This preventive external application of high doses of NO center dot by wasp eggs represents an evolutionary key innovation that adds a remarkable novel facet to the array of functions of the important biological effector NO center dot.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | AMINO-ACID-COMPOSITION; CENTRAL-NERVOUS-SYSTEM; EUROPEAN BEEWOLF; PHILANTHUS-TRIANGULUM; BAYESIAN-INFERENCE; SPORE GERMINATION; ADAPTIVE IMMUNITY; PARASITOID WASP; BURYING BEETLES; REACTIVE OXYGEN; |
| Subjects: | 500 Science > 590 Zoological sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Zoologie > Evolutionary Ecology (Prof. Dr. Erhard Strohm) Biology, Preclinical Medicine > Institut für Zoologie > Chemische Ökologie (Prof. Dr. Joachim Ruther) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Apr 2020 08:47 |
| Last Modified: | 08 Apr 2020 08:47 |
| URI: | https://pred.uni-regensburg.de/id/eprint/26836 |
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