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Relevance of the endosymbiosis of Blochmannia floridanus and carpenter ants at different stages of the life cycle of the host

Title data

Zientz, Evelyn ; Beyaert, Ivo ; Gross, Roy ; Feldhaar, Heike:
Relevance of the endosymbiosis of Blochmannia floridanus and carpenter ants at different stages of the life cycle of the host.
In: Applied and Environmental Microbiology. Vol. 72 (2006) Issue 9 . - pp. 6027-6033.
ISSN 0099-2240
DOI: https://doi.org/10.1128/aem.00933-06

Abstract in another language

Expression of several genes possibly involved in the symbiotic relationship between the obligate intracellular endosymbiont Blochmannia floridanus and its ant host Camponotus floridanus was investigated at different developmental stages of the host by real-time quantitative PCR. These included a set of genes related to nitrogen metabolism (ureC, ureF, glnA, and speB) as well as genes involved in the synthesis of the aromatic amino acid tyrosine (tyrA, aspC, and hisC). The overall transcriptional activity of Blochmannia was found to be quite low during early developmental stages and to increase steadily with host age. However, a concerted peak of gene expression related to nitrogen recycling could be detected around the entire process of pupation, while expression of biosynthesis pathways for aromatic amino acids was elevated only during a short phase in pupation. These data suggest an important role of certain metabolic functions for the symbiotic interactions of the bacteria and an individual host organism in early phases of development. General relevance of Blochmannia for its ant host was tested in fostering experiments with worker groups of Camponotus floridanus, and their success in raising pupae from first-instar larvae was used as a fitness measure. Groups treated with antibiotics had a significantly reduced success in raising the brood in comparison to untreated control groups, indicating that the symbiosis is relevant for the development of the entire colony.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER102049
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 12:21
Last Modified: 02 May 2015 15:14
URI: https://eref.uni-bayreuth.de/id/eprint/10822