نتایج جستجو برای: cytospora chrysosperma
تعداد نتایج: 119 فیلتر نتایج به سال:
در سالهای اخیر خشکیدگی سرشاخههای درختان سیب و گیلاس در استان تهران شدت یافته است. بررسیها نشان داد در مناطق آلوده قارچهای جنسEhrenb Cytospora و سوسک پوستخوار Scolytus rugulosus Muller عامل اصلی این خشکیدگی میباشند. بیشترین مناطق تغییر رنگ داده پوست در اثر فعالیت قارچ که اغلب با لکههای نکروتیک همراه بود، در نزدیک سوراخهای فعالیت حشره دیده شد. در کشتهای متعدد در محیطMA قارچ Cytospora...
Pathogenicity evaluation of Cytospora eucalypticola isolated from Eucalyptus spp. cankers in Uruguay
Cytospora eucalypticola has been frequently associated with twig and stem cankers and as endophyte of Eucalyptus globulus and E. grandis in Uruguay. Mycelium discs of two C. eucalypticola isolates obtained from actively growing colonies were inoculated, both superficially and on experimentally wounded stems of E. globulus and E. grandis. No inoculated and control plants have shown any discolora...
Sixteen novel pyrazole acyl thiourea derivatives 6 were synthesized from monomethylhydrazine (phenylhydrazine) and ethyl acetoacetate. The key 5-chloro-3-methyl-1-substituted-1H-pyrazole-4-carbonyl chloride intermediates 4 were first generated in four steps through cyclization, formylation, oxidation and acylation. Thess were then reacted with ammonium thiocyanate in the presence of PEG-400 to ...
The producing organism, strain FH-A 6607, was isolated from a soil sample collected near Rantepao, Sulawesi Island (Indonesia) and exhibited a characteristic brown to yellow colored mycelium. The typical conidiophores were found to be in close morphological analogy to gliocladium and are arranged in self-contained long rows (Fig. 1). Combined with further taxonomical investigations the strain F...
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