Metrichia is assigned to the Ochrotrichiinae, a group of almost exclusively Neotropical microcaddisflies. Metrichia comprises over 100 described species and, despite its diversity, only one species has been described from Brazil so far. In this paper, we provide descriptions for 20 new species from 8 Brazilian states: M. acuminata sp. nov., M. azul sp. nov., M. bonita sp. nov., M. bracui sp. no...

Translational elongation factor is an essential component for protein synthesis that functions by binding aminoacylated tRNAs to the ribosome-mRNA complex. This function is performed by EF-Tu in prokaryotes and eukaryotic organelles, and by EF-la in eukaryotes (for review see Miller and Weissbach, 1977). In lower photosynthetic eukaryotes, including Chlamydomonas (Baldauf and Palmer, 1990) and ...

Ivory shell (Babylonia areolata) is a commercially important aquaculture species mainly found on the southeast coast of China. However, it has been greatly affected by vibriosis in recent years. In this study, FP17 (a potential pathogen) was isolated from dying ivory with “acute death syndrome” and confirmed as pathogen via infectious experiment. Furthermore, phylogenetic analysis based average...

The emergence of microorganisms exerting resistance to biocides is a challenge to meat-processing environments. Bacteria can be intrinsically resistant to biocides but resistance can also be acquired by adaptation to their sub-lethal concentrations. Moreover, the presence of biocide resistance determinants, which is closely linked to antibiotic resistance determinants, could lead to co-selectio...

Bryopsis sp. from a restricted area of the rocky shore of Mar del Plata (Argentina) on the Atlantic coast was identified as Bryopsis plumosa (Hudson) C. Agardh (Bryopsidales, Chlorophyta) based on morphological characters and rbcL and tufA DNA barcodes. To analyze the cell wall polysaccharides of this seaweed, the major room temperature (B1) and 90°C (X1) water extracts were studied. By linkage...

The optimised reduction of dissolved nutrient loads in aquaculture effluents through bioremediation requires selection of appropriate algal species and strains. The objective of the current study was to identify target species and strains from the macroalgal genus Ulva for bioremediation of land-based aquaculture facilities in Eastern Australia. We surveyed land-based aquaculture facilities and...

2016 desert symposium e Bouse Formation provides a sedimentary record of the rst arrival of the Colorado River, water and sediment, as it was integrated from the Colorado Plateau to the Gulf of California 5–6 Ma. is unit is generally thin (10–100s m) but widespread within basins in the lower Colorado River corridor that extend from Lake Mead to Yuma (Fig. 1). e basins are interpreted to have be...