نتایج جستجو برای: internal transcribed spacers of rdna its
تعداد نتایج: 21275386 فیلتر نتایج به سال:
theplant pathogenic phytophthora drechsleri is morphologically similar to some other non-papillate phytophthora spp., especially p. melonis, and it is difficult to discriminate these convergent taxa. it seems that the iranian putative p. drechsleri isolates from different cucurbit species have been generally misidentified and their characteristics do not match with p. drechsleri. in order to co...
Eleven clinical and veterinary strains of filamentous Basidiomycetes were compared with 15 reference strains representing the orders Aphyllophorales and Agaricales. The methods used were restriction analysis of small subunit (18S) (SSU) rDNA and internal transcribed spacers (ITS) 1 and 2 and variable domain 9 (V9)-ITS1 sequencing. Six strains were found to belong to the teleomorph genera Schizo...
during spring and summer of 2010 and 2012, several surveys were conducted in different vineyards in kohgiluyeh & boyer-ahmad (southwestern iran) and kerman (southeastern iran) provinces, with the aim of isolating and identifying fungi associated with grapevine decline diseases. the samples collected comprised diseased grapevines showing yellowing, defoliation, reduced growth, wilting, intervein...
background: dermatophytes are the most common causative agents of superficial mycoses. species identification of these fungi is important from therapeutic and epidemiological point of wive. traditional approaches for identification of dermatophytes at the species level, relying on macroscopic and microscopic features of the colonies, usually are time-consuming and unreliable in many circumstanc...
The data of the is presented. technology allows to identify entire spectrum organisms in an experimental sample per one cycle, while separate study for each potentially contained component previously was required. An integrated approach submitted as a method early diagnosis causative agents main fungal diseases during silver birch ( Betula pendula Roth ) and downy pubescens Ehrh. plants. It bas...
during 2004-2007, a field survey was conducted in different vineyards to determine the fungal pathogens associated with grapevine decline in different provinces of iran including fars,hamedan,isfahan, and kohgiluyeh and boirahmad. twenty-seven isolates of botryosphaeriaceae were recovered from vines showing decline and dieback symptoms only in fars province. based on morphological and cultural ...
The current investigations suggest the segregation of Jurinea cartilaginea from Jurinea, and its placement among Centaureinae. Molecular studies, based on the nuclear ribosomal internal transcribed spacers (nrITS), chromosome number data and pollen morphology, support the morphological results. Based on these results, J. cartilaginea is related to and, therefore, transferred to the genus Karvan...
Intragenomic variation is the molecular within genome among repetitive DNA. As a multigene family, nuclear ribosomal DNA (rDNA) has been widely used in fungal taxonomy for their ease amplification and suitable variability to attain various levels of taxonomic resolution. At intraspecific level, rDNA believed be under concerted evolution internal transcribed spacers (ITS) region actually accepte...
OBJECTIVE To make an useful identification method for the molecule of DNA on 3 herbs of Artemisia genus and compare the differences of the genes of Korean and Chinese species of Artemisia. METHODS Sequence of 3 herbs (Artemisia sacrorum Ledeb., Artemisia iwayomogi Kitam. and Artemisia capillaris Thunb.) was determined by PCR sequence system. DNA was extracted from rDNA/ITS (internal transcrib...
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