نتایج جستجو برای: in situ hybridization

تعداد نتایج: 16981825  

Journal: :international journal of environmental research 2013
m.a. khan s.m. faheem

in this study, the bacterial diversity in the activated sludge system of a full-scale municipalwastewater treatment plant in dubai was monitored over a period of one year using ribosomal rna (rrna)targeted oligonucleotide probes for a defined phylogenetic group of bacteria by the fluorescence in situhybridization (fish) technique. the largest fraction of the bacterial community in the sludge sa...

ژورنال: :مجله دانشکده پزشکی دانشگاه علوم پزشکی تهران 0
زهرا نزهت zahra nozhat cellular and molecular research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, iran.مرکز تحقیقات سلولی و مولکولی غدد درون ریز، پژوهشکده علوم غدد درون ریز و متابولیسم، دانشگاه علوم پزشکی شهید بهشتی مهدی هدایتی mehdi hedayati p.o. box: 1985717413, cellular and molecular endocrine research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, iran. tel: +98-21-22432498تهران، بزرگراه شهید چمران، ولنجک، خیابان یمن، ابتدای خیابان پروانه، پلاک 24، پژوهشکده علوم غدد درون ریز ومتابولیسم دانشگاه علوم پزشکی شهید بهشتی، کدپستی: 1985717413 تلفن: 22432498-021

دورگه سازی در محل، روشی است که در آن از پروب های اسید نوکلئیک برای بررسی انواع تغییرات ژنتیکی در سلول های دست نخورده و بافت های تثبیت شده استفاده می شود. مراحل مختلف این روش شامل انتخاب پروب، آماده سازی نمونه، تیمار پیش از دورگه سازی، دورگه سازی، شستشو، آشکارسازی و روند کنترل می باشند. انتخاب پروب مناسب یکی از جنبه های مهم انجام فرایند دورگه سازی موفقیت آمیز است. حساسیت و ویژگی in situ hybridiz...

ژورنال: سنجش و ایمنی پرتو 2020

Estimation of absorbed dose for radiation workers or person involved in different radiological accident is the aim of biodosimetry. Cytogenetic methods are the most current and applicable biodosimetry tools. In chronic or protracted exposure, fluorescence in situ hybridization (FISH), stable chromosomal aberration is used for estimation of absorbed dose. For precise estimation of absorbed dose,...

ژورنال: علوم آب و خاک 2009
باقی زاده, امین, خنامانی فلاحتی پور, سوده, شاهسوند حسنی , حسین, کریم زاده, قاسم,

The genomic in situ hybridization (GISH) has been used to identify euploidy and aneuploidy in segregation generations of various plants. In this study, the GISH with minor modifications including, slide preparation of putative secondary Tritipyrum (F2) root meristemic cells, labeled genomic DNA of Thinopyrum bessarabicum by fluorescein 12-dUTP nucleotide as probe, genomic DNA of Thinopyrum bess...

باقی زاده, امین, خنامانی فلاحتی پور, سوده, شاهسوند حسنی , حسین, کریم زاده, قاسم,

The genomic in situ hybridization (GISH) has been used to identify euploidy and aneuploidy in segregation generations of various plants. In this study, the GISH with minor modifications including, slide preparation of putative secondary Tritipyrum (F2) root meristemic cells, labeled genomic DNA of Thinopyrum bessarabicum by fluorescein 12-dUTP nucleotide as probe, genomic DNA of Thinopyrum bess...

Journal: :ACTA HISTOCHEMICA ET CYTOCHEMICA 1990

Journal: :Environmental microbiology 2006
R M Morris K Longnecker S J Giovannoni

Although bacterioplankton and phytoplankton are generally perceived as closely linked in marine systems, specific interactions between discrete bacterioplankton and phytoplankton populations are largely unknown. However, measurements of bacterioplankton distributions during phytoplankton blooms may indicate specific microbial lineages that are responding to phytoplankton populations, and potent...

Journal: :Asian Pacific journal of cancer prevention : APJCP 2012
Chun Wan Yong-Chun Shen Meng-Qi Liu Ting Yang Tao Wang Lei Chen Qun Yi Fu-Qiang Wen

The diagnosis of malignant mesothelioma (MM) remains a clinical challenge and the fluorescence in situ hybridization (FISH) assay has been reported to be one promising tool. The present meta-analysis aimed to establish the overall diagnostic accuracy of FISH for diagnosing MM. After a systematic review of English language studies, the sensitivity, specificity and other measures of accuracy of F...

Journal: :The Journal of Cell Biology 1998
Jennifer C. Fung Wallace F. Marshall Abby Dernburg David A. Agard John W. Sedat

The dynamics by which homologous chromosomes pair is currently unknown. Here, we use fluorescence in situ hybridization in combination with three-dimensional optical microscopy to show that homologous pairing of the somatic chromosome arm 2L in Drosophila occurs by independent initiation of pairing at discrete loci rather than by a processive zippering of sites along the length of chromosome. B...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Annelie Pernthaler Anne E Dekas C Titus Brown Shana K Goffredi Tsegereda Embaye Victoria J Orphan

Microorganisms play a fundamental role in the cycling of nutrients and energy on our planet. A common strategy for many microorganisms mediating biogeochemical cycles in anoxic environments is syntrophy, frequently necessitating close spatial proximity between microbial partners. We are only now beginning to fully appreciate the diversity and pervasiveness of microbial partnerships in nature, t...

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