نتایج جستجو برای: nodularia spumigena

تعداد نتایج: 167  

2014
Stephan Klähn Desirée Baumgartner Ulrike Pfreundt Karsten Voigt Verena Schön Claudia Steglich Wolfgang R. Hess

In cyanobacteria, alkanes are synthesized from a fatty acyl-ACP by two enzymes, acyl-acyl carrier protein reductase and aldehyde deformylating oxygenase. Despite the great interest in the exploitation for biofuel production, nothing is known about the transcriptional organization of their genes or the physiological function of alkane synthesis. The comparison of 115 microarray datasets indicate...

2017
Sultana Akter Markus Vehniäinen Harri T. Kankaanpää Urpo Lamminmäki

Nodularin (NOD) is a cyclic penta-peptide hepatotoxin mainly produced by Nodularia spumigena, reported from the brackish water bodies of various parts of the world. It can accumulate in the food chain and, for safety reasons, levels of NOD not only in water bodies but also in food matrices are of interest. Here, we report on a non-competitive immunoassay for the specific detection of NOD. A pha...

Journal: :Applied and environmental microbiology 2007
Kerttu Koskenniemi Christina Lyra Pirjo Rajaniemi-Wacklin Jouni Jokela Kaarina Sivonen

A specific quantitative real-time PCR (qPCR) method was developed for the quantification of hepatotoxin nodularin-producing Nodularia, one of the main bloom-forming cyanobacteria in the Baltic Sea. Specific PCR primers were designed for subunit F of the nodularin synthetase gene (ndaF), which encodes the NdaF subunit of the nodularin synthetase gene complex needed for nodularin production. The ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده منابع طبیعی صومعه سرا 1391

مطالعه حاضر با هدف بررسی اثرات ناشی از در معرض گذاری ماهی با جلبک nodularia spumigena بر تغییر برخی پارامترهای فیزیولوژیک و بافت کبد و عضله بچه ماهی سفید در زمان های مختلف انجام پذیرفت. این بررسی در دو مرحله (فاز در معرض قرارگیری و فاز ریکاوری) انجام گرفت. در این بررسی جلبک در محیط کشتmedium) z (zehnder پرورش یافت، سپس در فاز در معرض گذاری، 3 تیمار شامل سه غلظت جلبک با تراکم صفر، دوز پائین یا 1...

2012
Ian Stewart Geoffrey K. Eaglesham Glenn B. McGregor Roger Chong Alan A. Seawright Wasantha A. Wickramasinghe Ross Sadler Lindsay Hunt Glenn Graham

Fish collected after a mass mortality at an artificial lake in south-east Queensland, Australia, were examined for the presence of nodularin as the lake had earlier been affected by a Nodularia bloom. Methanol extracts of muscle, liver, peritoneal and stomach contents were analysed by HPLC and tandem mass spectrometry; histological examination was conducted on livers from captured mullet. Liver...

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