Küchler, S; Gibbs, G; Burckhardt, D; Dettner, K; Hartung, V: Diversity of bacterial endosymbionts and bacteria–host co-evolution in Gondwanan relict moss bugs (Hemiptera: Coleorrhyncha: Peloridiidae), Environmental Microbiology, 15, 2031-2042 (2013), doi:10.1111/1462-2920.12101
Abstract:
Many hemipterans are associated with symbiotic bacteria, which are usually found intracellularly in specific bacteriomes. In this study, we provide the first molecular identification of the bacteriomeassociated, obligate endosymbiont in a Gondwanan relict insect taxon, the moss bugs (Hemiptera: Coleorrhyncha: Peloridiidae), which represents one of the oldest lineages within the Hemiptera. Endosymbiotic associations of fifteen species of the family were analysed, covering representatives from South America, Australia/Tasmania and New Zealand. Phylogenetic analysis based on four kilobases of 16S–23S rRNA gene fragments showed that the obligate endosymbiont of Peloridiidae constitute a so far unknown group of Gammaproteobacteria which is named here ‘Candidatus Evansia muelleri’. They are related to the sternorrhynchous endosymbionts Candidatus Portiera and Candidatus Carsonella. Comparison of the primary-endosymbiont and host (COI + 28S rRNA) trees showed overall congruence indicating cospeciation the hosts and their symbionts. The distribution of the endosymbiont within the insect body and its transmission was studied using FISH. The endosymbionts were detected endocellularly in a pair of bacteriomes as well as in the ‘symbiont ball’ of the posterior pole of each developing oocyte. Furthermore, ultrastructural analysis of the Malpighian tubules revealed that most host nuclei are infected by an endosymbiotic, intranuclear bacterium that was determined as an Alphaproteobacterium of the genus Rickettsia.

There are additional file downloads belonging to this publication

Password
Upcoming ...


BayCEER Colloquium:
Th. 2017-12-14 now
A Molecular Scale Approach: X-Ray Absorption Spectroscopy in Environmental Study
Th. 2017-12-21
Silicon in biogeochemistry
Ökologisch-Botanischer Garten:
Su. 2018-01-07
Stärk´ anlaufen: Winterspaziergang im ÖBG
Su. 2018-01-07
Musikalischer Jahresbeginn mit den Rockin´ Dinos
Workshop:
Th. 2017-12-14 now
Workshop on synchrotron-based X-ray absorption spectroscopy
Weather research site
Luftdruck (356m): 951.0 hPa
Lufttemperatur: 4.3 °C
Niederschlag: 4.1 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 17m): 16.6 km/h
Wind (Max.): 32.0 km/h
Windrichtung: SW

...more
Globalstrahlung: 1 W/m²
Lufttemperatur: 0.9 °C
Niederschlag: 2.9 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 32m): 23.4 km/h
Wind (Max.): 50.4 km/h

...more