نتایج جستجو برای: species identification
تعداد نتایج: 923407 فیلتر نتایج به سال:
Eight species of the genus Cercospora from different localities in Northern provinces of Iran were obtained and examined during spring-autumn 2010. Cercospora acnidae (from Amaranthus chlorostachys var. chlorostachys), C. beticola (from Beta vulgaris), C. iridis (from Iris sp.), C. lactucae-sativae (from Lactuca sativa), C. mercurialis (from Mercurialis annua), C. sorghi (from Sorghum halepense...
Taxonomists, ecologists, geneticists or researchers from other biological fields who wish to adopt fish as a constituent of their studies often become discouraged when they find that ichthyology is a complex subject. In fish-based studies, the failure to recognize fishes as distinct biological units can lead to wrong diagnosis. Hence, this review paper attempts to clarify and discuss the latest...
Background and Purpose: By using advanced detection/identification methods, the list of emerging uncommon opportunistic yeast infections is rapidly expanding worldwide. Our aim in the present study was sequence-based species delineation of previously unidentified yeasts obtained from a clinically yeast collection. Materials and Methods: A total of twenty three out of the 855 (5.7%) yeast isolat...
Fungi produce a wide range of secondary metabolites such as antibiotics, toxins, alkaloids, fatty acids, ketones and alcohols during active cell growth. The present study was aimed to identify secondary metabolites from some Penicillium species, using GC-MS. Many important compounds such as 3-oxoquinuclidine in Penicillium jenseii, formamidine in Penicillium pusillum, orcinol and 1,3,8-p-mentha...
Background: Isfahan is one of the major foci of cutaneous leishmaniasis in Iran. According to the epidemiological studies, both urban and rural forms have been reported in Isfahan. Accurate identification and characterization of Leishmania is essential for the control of the disease. Several different molecular techniques for Leishmania identification are developed including use of monoclonal a...
The marine environment is a rich source of biodiversity and chemical compounds, and based on biodiversity knowledge, it is believed that the highest biodiversity is related to living organisms in tropical and semi-equatorial regions. The goal of this study was the biodiversity of Demospongiae sponge in Assaluyeh area in May 2018. Sampling carried oyu by using Coadrat in three sites with three r...
Phytoplankton cells and resting cysts of the species Scrippsiella trochoidea are regular and dominant components of the dinoflagellate flora of coastal marine waters and sediments around the world. This species is a common harmful bloom forming species in coastal waters. In this study, for the first time cyst of S. trochoidea were isolated from the sediments of southeast coast of Iran. Five str...
Due to the predisposing conditions in patients with cystic fibrosis (CF) caused by defective mucociliary clearance facilitates of colonization and invasion with bacteria and fungal species has dramatically increased. In different studies many opportunistic fungi such as Candida and Aspergillus species have been frequently isolated from the respiratory tract of patient suffering from cystic fibr...
Among the Six native species of Juniperus genus in Iran, J. polycarpos and J. excelsa have highest frequent and geographical distribution on the highlands of the country and play a crucial role in the natural ecosystem of presented area. Due to the similar appearance of mentioned species, it's difficult to identify them in the nature. In this study, quantitative traits indicators of cone and s...
background: fascioliasis is considered as the most important helminthic infection of cattle and sheep. traditional approaches using morphological and biologic characters cannot cause a certainty in the accurate and precise identification and intra-specific differences of fasciola spp. in this study, we identified fasciola species using its-1 marker and described genetic variation of each spec...
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