نتایج جستجو برای: Internal transcribed spacer

تعداد نتایج: 259754  

Journal: :iranian journal of basic medical sciences 0
hasan shojaei department of microbiology, school of medicine, isfahan university of medical sciences, isfahan, iran abodolrazagh hashemi department of microbiology, school of medicine, isfahan university of medical sciences, isfahan, iran parvin heidarieh infectious and tropical disease research center, ahvaz jundishapur university of medical sciences, iran fazel pourahmad microbiology group, department of pathobiology, school of public health, tehran university of medical sciences, tehran, iran abass daei naser school of veterinary medicine, ilam university, ilam, iran infectious diseases and tropical medicine research center, isfahan university of medical sciences, isfahan, iran

objective(s) in addition to several molecular methods and in particular 16s rdna analysis, the application of a more discriminatory genetic marker, i.e., 16s-23s internal transcribed spacer gene sequence has had a great impact on identification and classification of mycobacteria. in the current study we aimed to apply this sequencing power to conclusive identification of some iranian clinical s...

Journal: :journal of crop protection 2015
hamid mohammadi mehdi sarcheshmehpour ebrahim mafi

during spring and summer of 2012, a disease characterized by panicle blight was observed on some pistachio (pistacia vera l.) trees grown in kerman province. eighteen isolates of a botryosphaeriaceae were obtained from affected panicles. based on morphological and molecular characteristics, isolates were identified as botrysphaeria dothidea. to our knowledge, this is the first report of b. doth...

Journal: :iranian journal of parasitology 0
reza nabavi dept. of pathobiology, faculty of veterinary medicine, university of zabol, zabol, iran. brendan conneely school of veterinary medicine, university college dublin, belfield, dublin 4, ireland and teagasc, animal production research centre, athenry, co galway, ireland. elaine mccarthy school of veterinary medicine, university college dublin, belfield, dublin 4, ireland. barbara good teagasc, animal production research centre, athenry, co galway, ireland. parviz shayan dept. of parasitology, faculty of veterinary medicine , university of tehran, tehran, iran. theo de waal school of veterinary medicine, university college dublin, belfield, dublin 4, ireland.

background: accurate identification of sheep nematodes is a critical point in epidemiological studies and monitoring of drug resistance in flocks. however, due to a close morphological similarity between the eggs and larval stages of many of these nematodes,such identification is not a trivial task. there are a number of studies showing that molecular targets in ribosomal dna (internal transcri...

ژورنال: :زیست فناوری 0
مهدی ثابت جهرمی کرج-ابتدای جاده ماهدشت- بلوار شهید فهمیده- روبروی بانک کشاورزی- پژوهشکده بیوتکنولوژی کشاورزی

ت چکیده-تحقیقات نشان داده گیاهانی که ریشه آن ها به وسیله ی قارچ های اندوفیت میکوریزا آربوسکولار آلوده می شود، نسبت به گیاهان غیرمیکوریزی، توانایی بالاتری برای تحملتنش های زنده و غیرزنده محیطی مانند خشکی دارند. پسمطالعه گونه های غالب میکوریزا در مناطق خشک برای استفاده از آن ها به عنوان کود بیولوژیک می تواند مفید باشد. در این پژوهش ابتدا از ریشه گیاهان (گندم و جو) در مناطق تحت تنش خشکی (اراک، اصف...

Journal: :iranian journal of parasitology 0
h mahmoudzadeh-niknam dept. of immunology, pasteur institute of iran, tehran, iran f abrishami dept. of immunology, pasteur institute of iran, tehran, iran m doroudian dept. of immunology, pasteur institute of iran, tehran, iran m moradi dept. of immunology, pasteur institute of iran, tehran, iran mh alimohammadian dept. of immunology, pasteur institute of iran, tehran, iran p parvizi dept. of parasitology, pasteur institute of iran, tehran, iran

background: leishmaniasis is endemic in iran. different species of leishmania (l.) parasites are causative agents of this disease. correct identification of leishmania species is important for clinical studies, prevention, and control of the diseases. mix up of leishmania isolates is possible in the laboratory, so there is need for verification of species for isolates of uncertain identity. dif...

Journal: :journal of agricultural science and technology 2012
n. hosseinzadeh gharajeh m. a. hejazi s. nazeri abolfazl barzegari

dunaliella is a green halotolerant microalga, which has several industrial applications e.g. β-carotene production. identification of different dunaliella species has been carried out by morpho-physiological and recently molecular studies. to achieve an improved understanding of taxonomy, these studies are required to be in linkage. the present study describes molecular and specific morpho-phys...

Journal: :journal of agricultural science and technology 2015
r. mostowfizadeh-ghalamfarsa z. banihashemi

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...

ژورنال: :زیست فناوری دانشگاه تربیت مدرس 2012
مهدی ثابت جهرمی

ت چکیده-تحقیقات نشان داده گیاهانی که ریشه آن ها به وسیله ی قارچ های اندوفیت میکوریزا آربوسکولار آلوده می شود، نسبت به گیاهان غیرمیکوریزی، توانایی بالاتری برای تحملتنش های زنده و غیرزنده محیطی مانند خشکی دارند. پسمطالعه گونه های غالب میکوریزا در مناطق خشک برای استفاده از آن ها به عنوان کود بیولوژیک می تواند مفید باشد. در این پژوهش ابتدا از ریشه گیاهان (گندم و جو) در مناطق تحت تنش خشکی (اراک، اصف...

Journal: :iran agricultural research 2014
r. mostowfizadeh-ghalamfarsa z. banihashemi s. jamali

abstract- desert truffles are hypogeous ascomyceteous ectomycorrhizal fungi, occurring in arid and semi-arid ecosystems. a pcr-based method was developed for the identification of 3 major desert truffles of iran: terfezia claveryi, tirmania pinoyi and tirmania nivea based on internal transcribed spacers of rdna. two specific pcr primers were designed for t. claveryi, 4 for t. pinoyi, and 2 for ...

Abass Daei Naser Abodolrazagh Hashemi Fazel Pourahmad Hasan Shojaei, Parvin Heidarieh

Objective(s) In addition to several molecular methods and in particular 16S rDNA analysis, the application of a more discriminatory genetic marker, i.e., 16S-23S internal transcribed spacer gene sequence has had a great impact on identification and classification of mycobacteria. In the current study we aimed to apply this sequencing power to conclusive identification of some Iranian clinical ...

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