منابع مشابه
Population Structure of Pythium irregulare, P. ultimum, and P. sylvaticum in Forest Nursery Soils of Oregon and Washington.
Pythium species are important soilborne pathogens occurring in the forest nursery industry of the Pacific Northwest. However, little is known about their genetic diversity or population structure and it is suspected that isolates are moved among forest nurseries on seedling stock and shared field equipment. In order to address these concerns, a total of 115 isolates of three Pythium species (P....
متن کاملSensitivity of North American Isolates of Phytophthora erythroseptica and Pythium ultimum to Mefenoxam (Metalaxyl)
Since their introduction in the late 1970s, phenylamide fungicides have been used effectively to control diseases caused by the Peronosporales. These fungicides have a very specific mode of action; inhibiting fungal ribosomal RNA polymerases (7). Because of this specificity, there is a relatively high risk that resistance to the fungicide may appear quickly in the target fungal population (3). ...
متن کاملPythium sulcatum and P. ultimum as causal agents of cavity spot disease of carrots in Egypt
1Department of Biology, Faculty of Science, United Arab Emirates University, Al-Ain, 17551, United Arab Emirates; 2Department of Microbiology, Faculty of Science, University of Ain Shams, Cairo, 11566, Egypt; 3School of Biological Sciences and Biotechnology, Division of Science and Engineering, Murdoch University, Murdoch, W.A., 6150, Australia (e-mail: [email protected]); 4Soil Science an...
متن کاملCellular and Molecular Mechanisms Involved in the Interaction between Trichoderma harzianum and Pythium ultimum.
The interaction between Trichoderma harzianum and the soilborne plant pathogen Pythium ultimum was studied by electron microscopy and further investigated by gold cytochemistry. Early contact between the two fungi was accompanied by the abnormal deposition of a cellulose-enriched material at sites of potential antagonist penetration. The antagonist displayed the ability to penetrate this barrie...
متن کاملEffect of Non Volatile Compounds of Trichoderma Spp. against Fusarium Graminearum, Rhizoctonia Solani and Pythium Ultimum
Biological control represents an important approach of agricultural biotechnology for controlling many fungal plant pathogens. Trichoderma spp. are the most promising and effective bioagents against many plant pathogenic fungi. In present paper, two strains of Trichoderma aspellerum isolated from soil were screened for their efficacy against some common soil borne plant pathogens by dual cultur...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Phytopathology®
سال: 1997
ISSN: 0031-949X,1943-7684
DOI: 10.1094/phyto.1997.87.4.454