نتایج جستجو برای: rpb2
تعداد نتایج: 348 فیلتر نتایج به سال:
Integrative taxonomic studies of macrofungal diversity in the Brijuni National Park (Istria County, Croatia) led to discovery a second species Inocybe (Agaricales, Inocybaceae) new science. istriaca sp. nov. is described on basis morphological, ecological, and multigene phylogenetic analyses, its placement within family Inocybaceae discussed. The combination most important morphological charact...
Several members of Alternaria section are economically important plant-pathogenic fungi that cause disease on a wide range host types and plant tissues. The production Alternaria-derived mycotoxins can lead to significant post-harvest losses due contamination agricultural products. Multiple species listed as regulated organisms, which monitored by international protection programmes. These taxa...
Abstract During 2018–2021, a survey was conducted in rainfed fig ( Ficus carica L.) orchards throughout the Fars Province of Iran to investigate occurrence canker diseases, and identify causal organisms. Morphological cultural characteristics, as well multilocus phylogenetic analyses internal transcribed spacer (ITS) region rDNA, RNA polymerase II second largest subunit RPB2 ), translation elon...
چکیده سیبزمینی یکی از محصولات مهم زراعی در استان کردستان است. عوامل قارچی زیادی موجب پوسیدگی غده، طوقه و ریشه درگیاه سیبزمینی میشوند. هدف از اجرای این تحقیق شناسایی عوامل قارچی مرتبط با پوسیدگی غده، طوقه و ریشه سیبزمینی در شهرستانهای قروه و دهگلان بود. به منظور انجام این کار در تابستان 1392 نمونهبرداری از بخشهای زیرزمینی گیاهان سیب زمینی مشکوک به آلودگی در مراحل مختلف رشدی گیاه از زمان کا...
The genus Ramularia includes important plant pathogens with worldwide distribution, commonly associated with leaf spot diseases on a broad range of plant hosts. Although these fungi are common in Iran, most of the species found to date have been identified on the basis of morphological characteristics, and DNA data are available for limited number of them. During our investigation of fungi asso...
Celosia argentea (cockscomb, family Amaranthaceae) is an important annual flowering plant cultivated for landscaping worldwide and widely grown across most provinces of Iraq. During a survey 36 nurseries in the Karbala Babylon, Iraq, undertaken between August to November 2021, plants cockscomb with foliar wilting root rot were observed (Figure 1). The prevalence these symptoms ranged from 20 40...
A new species of nonsporulating fungus, isolated in a case of black-grain mycetoma in Sudan, is described as Madurella fahalii. The species is characterized by phenotypic and molecular criteria. Multigene phylogenies based on the ribosomal DNA (rDNA) internal transcribed spacer (ITS), the partial β-tubulin gene (BT2), and the RNA polymerase II subunit 2 gene (RPB2) indicate that M. fahalii is c...
A systematic and evolutionary ecology study of the model ectomycorrhizal (ECM) genus Laccaria was performed using herbarium material and field collections from over 30 countries covering its known geographic range. A four-gene (nrITS, 28S, RPB2, EF1α) nucleotide sequence dataset consisting of 232 Laccaria specimens was analyzed phylogenetically. The resulting Global Laccaria dataset was used fo...
Members of the sooty blotch and flyspeck (SBFS) complex are epiphytic fungi in the Ascomycota that cause economically damaging blemishes of apples worldwide. SBFS fungi are polyphyletic, but approx. 96% of SBFS species are in the Capnodiales. Evolutionary origins of SBFS fungi remain unclear, so we attempted to infer their origins by means of ancestral state reconstruction on a phylogenetic tre...
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