Abstract Cercospora leaf spot is an important foliar disease in sugar beet caused by beticola . Tolerant cultivars are available, but application of fungicides still mandatory for control. The timing the fungicide crucial as it determines outcome epidemiology. A incidence (DI) 5% widely used a threshold application. Recently method was developed that allows quantification aerial spore dispersal...

Pjegavost lista, koju uzrokuje gljiva Cercospora beticola, najzna?ajnija je bolest koja se javlja na še?ernoj repi u svim podru?jima uzgoja i zna?ajne ekonomske štete. Pjege, kao tipi?ni simptomi ove bolesti, naj?eše?e su veli?ine 2-5 mm, svjetlije sredine tamnijeg ruba. Prvo javljaju starijim listovima, ali kako napreduje pjege šire mla?e listove. Najvažnije mjere zaštite podrazumijevaju uništ...

Cercosporin is a non-host-selective, perylenequinone toxin produced by many phytopathogenic Cercospora species. The involvement of Ca(2+)/calmodulin (CaM) signaling in cercosporin biosynthesis was investigated by using pharmacological inhibitors. The results suggest that maintaining endogenous Ca(2+) homeostasis is required for cercosporin biosynthesis in Cercospora nicotianae. The addition of ...

Cercosporoid fungi (formerly Cercospora s. lat.) represent one of the largest groups of hyphomycetes belonging to the Mycosphaerellaceae (Ascomycota). They include asexual morphs, asexual holomorphs, or species with mycosphaerella-like sexual morphs. Most of them are leaf-spotting plant pathogens with special phytopathological relevance. In the first part of a new monographic work, cercosporoid...

Vitamin B6 (pyridoxine, 1) and its derivatives: pyridoxal (2), pyridoxal 5-phosphate (3) and pyridoxamine (4) are important natural compounds involved in numerous biological functions. Pyridoxine appears to play a role in the resistance of the filamentous fungus Cercospora nicotianae to its own abundantly produced strong photosensitizer of singlet molecular oxygen (1O2), cercosporin. We measure...