Onion anthracnose, caused by Colletotrichum gloeosporioides, is one of the main diseases of onions in the State of Pernambuco. We examined the pathogenicity of 15 C. gloeosporioides strains and analyzed their genetic variability using RAPDs and internal transcribed spacers (ITS) of the rDNA region. Ten of the strains were obtained from substrates and hosts other than onion, including chayote (S...

The impact of two principal parasitic digenetic trematodes, Meiogymnophallus minutus and Himasthla spp., on the growth (weight and length) of the cockle, Cerastoderma edule, in Arcachon Bay (France) was studied. The experiment was conducted in the land-based mesocosms. The velocity of infestation with both trematodes was far more rapid during summer in the cockles already parasitized with these...

According to climate change scenarios the incidence of extreme events, such as flooding, is expected increase worldwide. In current context, understanding behavioural responses marine species stressors essential, especially for high ecological and economic interest bivalves, which can be quite useful future management conservation actions. this study, a laboratory experiment using different sal...

Abstract Accelerator mass spectrometry (AMS) radiocarbon ( 14 C) dating of Cerastoderma edule (Linnaeus 1767) and Mytilus edulis 1758) shells sampled in AD 1889 near the island Wangerooge gave a new local correction factor ΔR −85 ± 17 C years for Wadden Sea area. The value is considerably higher than available scattered data from North Sea, which were obtained pre-bomb growth rings living Arcti...