In Alaska, an unprecedented dieback and mortality of Alnus incana ssp. tenuifolia has occurred which stimulated an effort to determine causal agents of the disease. In Europe, similar dieback and mortality of Alnus incana and Alnus glutinosa has been attributed to root rot by a spectrum of newly emergent strains in the hybrid species Phytophthora alni. The variable hybrids of P. alni were group...

a total of ten isolates of fungi with rhizoctonia-like mycelia were obtained from infected roots and stems of pistachio pistacia vera grown in a commercial nursery in rafsanjan, iran, during the autumn of 2011. the infected seedlings showed symptoms of chlorosis that later turned to necrosis. all of the isolates were identified as binucleate rhizoctonia on the basis of hyphal characteristics an...

metallic silver nanoparticles have been reduced from silver nitrate by employing the extracellular enzymatic machinery of edible white button mushroom (agaricus bisporus). the physical properties of these particles, size and shapes have been determined using techniques like tem, ftir and xrd and were reported in our earlier report. but, what stands of paramount importance in the present context...

Akdeniz ikliminde Fusarium solgunluğu (Fusarium oxysporum f. sp. lycopersici, Fol) ve kök boğazı çürüklüğü radicis-lycopersici, Forl) hastalıklarına neden olan fungal etmenler survey çalışmaları ile belirlenmiştir. İzolasyonlar sonucu elde edilen her iki etmene ait izolatların tür/ırk spesifik primerlerle (FOF1-FOR1, sp13, sp23 sprl) tanısı yapılmış virülenslik grupları oluşturulmuştur. Antalya...

root rot disease of broad-bean caused by fusarium solani is a serious disease of this crop. due to high cost and difficulty of the disease control, interaction between root nodulating bacteria and fusarium. solani were evaluated to use for disease management. broad-bean root nodulating bacteria were isolated and their interaction with f. solani was investigated in culture medium in a completely...