A novel Gram-negative, yellow-pigmented, aerobic, motile by gliding, rod-shaped marine bacterium (JLT2011(T)) was isolated from surface seawater. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain JLT2011(T) could be assigned to the genus Gramella and was most closely related to Gramella gaetbulicola, with 96.2 % similarity. The genomic DNA G+C content was 42.1 %. The pre...

A novel actinomycete, strain W6(T), was isolated from a soil sample of Yunnan Province, China. The bacterium was aerobic, non-motile, non-spore-forming and Gram-stain-positive. Genetic, phenotypic and chemical properties of the isolate were studied. 16S rRNA gene sequence data suggested that the novel isolate belonged to the genus Friedmanniella and shared 98.6% sequence similarity with Friedma...

The area of overlapping ranges, contact and relationships two closely related species—the western yellow wagtail Motacilla flava Linnaeus, 1758 the yellow-headed lutea (Gmelin, 1774)—in Volga region are subject present study. At present, under conditions wide sympatry, there is spatial reproductive interaction between these wagtails. Crossbreeding species ‘yellow’ wagtails gives a light-headed ...

The Holarctic genus Piezura Rondani (Diptera, Fanniidae) is reviewed. Phylogenetic relationships among the species in this group, as well as the biogeography of these species, are discussed on the basis of a cladistic analysis. Piezura graminicola shanxiensis Xue, Wang and Wu, 1998 is redescribed and elevated to species rank based on comparison of its morphology and phylogenetic relationships. ...

The individual and interactive effects of environmental pH (7 [control], 6, 5, and 4) and calcium (0, 5, and 50 mg/L) were studied on hemolymph ions (pH, Ca(2+), total CO(2), Na(+), K(+)) and osmolality in the freshwater snail, Elimia flava, over a 72-h exposure. All hemolymph factors strongly differed with environmental pH. Snails exposed to pH 4 were inactive and experienced more dramatic ion...

The genus Parerigone (Diptera, Tachinidae) is reviewed. Five new species from China, P. atrisetosa sp. nov., P. flava sp. nov., P. flavisquama sp. nov., P. laxifrons sp. nov. and P. wangi sp. nov., are described and illustrated. Parerigone flavihirta (Chao & Sun) is proposed as a new synonym of P. takanoi Mesnil. Diagnosis of species examined and a key to the 15 species of Parerigone are provided.