In this study, some biochemical responses of Beta-Cyfluthrin (β-CF), which is a commercial insecticide in Dreissena polymorpha, were investigated. The 96 hour LC50 value β-CF on D. polymorpha was calculated as 509.62 µg L-1. exposed to subletal concentrations (1/16, 1/8 and 1/4 value: 32, 64 128 L-1) for 24 hours. Malondialdehyde (MDA) reduced glutathione (GSH) levels Acetylcholinesterase (AChE...

An array of vectors have been identified that pose a risk spreading invasive alien species (IAS), from personal protective equipment to large such as vehicles and boats. Biosecurity practices remove and/or kill IAS reduce the accidental spread. The effectiveness biosecurity protocols suitable for is little tested requires development. One widely-used method high-pressure hot water spray machine...

During the last decade methylotrophic yeasts have gained increasing interest, both for fundamental (van der Klei and Veenhuis, 1996) and applied purposes (van Dijk et al., 2000; Gellissen, 2000). The special value of these yeasts (mainly Pichia pastoris and Hansenula polymorpha) in fundamental research is undoubtedly related to studies on the principles of peroxisome homeostasis (biogenesis vs....

BACKGROUND Efficient xylose alcoholic fermentation is one of the key to a successful lignocellulosic ethanol production. However, regulation of this process in the native xylose-fermenting yeasts is poorly understood. In this work, we paid attention to the transcriptional factor Cat8 and its possible role in xylose alcoholic fermentation in Ogataea (Hansenula) polymorpha. In Saccharomyces cerev...

bioconversion of cellulosic material into bioethanol needs cellulase complex enzymesthat contain endoglucanase, exoglucanase and beta glucosidase. one of the most important organisms that produce cellulases is the filamentous fungi, trichoderma reesei which able to secrete large amounts of different cellulases. these enzymes are probably the most widely used cellulases industrially, however, th...