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Bacteriolytic Activity in the Ejaculate of an Insect

Title data

Otti, Oliver ; Naylor, Richard A. ; Siva-Jothy, Michael T. ; Reinhardt, Klaus:
Bacteriolytic Activity in the Ejaculate of an Insect.
In: The American Naturalist. Vol. 174 (August 2009) Issue 2 . - pp. 292-295.
ISSN 1537-5323
DOI: https://doi.org/10.1086/600099

Abstract in another language

The rapid evolution of ejaculate components is considered to be largely driven by sexual selection. Less attention has been paid to the fact that sperm and microorganisms frequently meet; we consequently predict selection for substances that protect a male's ejaculate. We report, for the first time, bacteriolytic activity (lysozyme-like immune activity [LLA]) in the ejaculate of an animal, the common bedbug Cimex lectularius. We also show that in almost half the males LLA in the seminal fluid exceeded LLA in the hemolymph. We detected no antimicrobial peptide activity in seminal fluid. Because lysozymes degrade only bacteria, our results suggest that sperm-microbe interactions are probably important in the evolution of ejaculate components and thereby provide a route for natural selection to account for some of the diversity of seminal components.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER111925
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Animal Ecology I
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Professorship Animal Population Ecology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Professorship Animal Population Ecology > Professorship Animal Population Ecology - Univ.-Prof. Dr. Heike Feldhaar
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: No
DDC Subjects: 500 Science > 500 Natural sciences
500 Science > 570 Life sciences, biology
500 Science > 590 Animals (Zoology)
Date Deposited: 30 Apr 2015 13:16
Last Modified: 01 May 2015 18:59
URI: https://eref.uni-bayreuth.de/id/eprint/10857