نتایج جستجو برای: اپران lux

تعداد نتایج: 2625  

Journal: :Applied and environmental microbiology 1995
T K Van Dyk D R Smulski T R Reed S Belkin A C Vollmer R A LaRossa

A transcriptional fusion of the Escherichia coli uspA promoter to luxCDABE was characterized and compared with a heat shock-responsive grpE'::lux fusion. Similarities in range and rank order of inducing conditions were observed; however, the magnitude of induction was typically greater for the grpE'::lux fusion strain.

Journal: :Antimicrobial agents and chemotherapy 1996
M J Hickey T M Arain R M Shawar D J Humble M H Langhorne J N Morgenroth C K Stover

The development of new drugs and vaccines directed against Mycobacterium tuberculosis is severely impeded by the slow growth of this organism and the need to work under stringent biosafety conditions. These difficulties pose considerable obstacles when animal studies with M. tuberculosis are performed. We investigated whether a novel approach termed luciferase in vivo expression, using an enhan...

2011
Georgina Fabro Jens Steinbrenner Mary Coates Naveed Ishaque Laura Baxter David J. Studholme Evelyn Körner Rebecca L. Allen Sophie J. M. Piquerez Alejandra Rougon-Cardoso David Greenshields Rita Lei Jorge L. Badel Marie-Cecile Caillaud Kee-Hoon Sohn Guido Van den Ackerveken Jane E. Parker Jim Beynon Jonathan D. G. Jones

Oomycete pathogens cause diverse plant diseases. To successfully colonize their hosts, they deliver a suite of effector proteins that can attenuate plant defenses. In the oomycete downy mildews, effectors carry a signal peptide and an RxLR motif. Hyaloperonospora arabidopsidis (Hpa) causes downy mildew on the model plant Arabidopsis thaliana (Arabidopsis). We investigated if candidate effectors...

Journal: :Journal of bacteriology 2002
Angela H Finney Robert J Blick Katsuhiko Murakami Akira Ishihama Ann M Stevens

During quorum sensing in Vibrio fischeri, the luminescence, or lux, operon is regulated in a cell density-dependent manner by the activator LuxR in the presence of an acylated homoserine lactone autoinducer molecule [N-(3-oxohexanoyl) homoserine lactone]. LuxR, which binds to the lux operon promoter at a position centered at -42.5 relative to the transcription initiation site, is thought to fun...

Journal: :Investigative ophthalmology & visual science 2003
Feng Li Wei Cao Robert E Anderson

PURPOSE To further test the hypothesis that light-adaptation-mediated photoreceptor protection works through inhibition of apoptosis by activation and/or upregulation of neuroprotective molecules. METHODS Albino rats were born and raised in 5-lux cyclic light (12 hours OFF and ON). At 8 weeks of age, animals were adapted to 400-lux cyclic light for different periods. Light damage was induced ...

ذاکریان, سید ابوالفضل, زارع, اسماء, غریب, سیف اله, ملکوتی خواه, مهدی, گروسی, احسان,

Introduction: Control room is one of the most important working environments that require optimal performance of individuals to minimize errors. Lighting is one of the environmental factors affecting the operation of the control room operators. Providing optimal lighting in the control room is very important. The purpose of this study was to determine the effect of light on workload, sleepiness...

Journal: :شیلات 0
محمدرضا رحیمی بشر استادیار گروه زیست شناسی دریا، دانشکدة علوم پایه، دانشگاه آزاد اسلامی واحد لاهیجان، لاهیجان، ایران مریم یحیی زاده کارشناسی ارشد گروه شیلات، دانشکدة منابع طبیعی، دانشگاه آزاد اسلامی واحد لاهیجان، لاهیجان، ایران ابوالقاسم اسماعیلی فریدونی دانشیار گروه شیلات، دانشکدۀ علوم دامی و شیلات، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ایران مجید راستا دانشجوی دکتری گروه شیلات، دانشکده منابع طبیعی صومعه سرا، دانشگاه گیلان، ایران حر ترابی جفرودی کارشناس گروه زیست شناسی دریا، دانشکدة علوم دریایی و اقیانوسی، پردیس دانشگاه مازندران، بابلسر، ایران

the aims of this study were to investigate the effect of photoperiod and light intensity on egg production and hatching rate in acartia clausi in laboratory conditions. this zooplankton was collected from caspian coastal waters of mazandaran province by the use of a 100µ net. all tests were performed in five light treatments (photoperiod) namely 24:00, 18:06, 12:12, 06:18, 00:24 (light / dark),...

Journal: :Hydrobiology 2022

On the quest of discovering novel local strains microalgal species that can be effectively cultured with industrial perspectives, two cyanobacterial Anabaena sp. and Cyanothece were isolated from lagoonal saltworks waters Messolonghi lagoon (W. Greece). They batch at 20–21.5 °C in six combinations three salinities (20, 40 60 ppt) light intensities (2000 8000 lux) resulting in: (a) grew best 20 ...

2014
Melissa Yen Ying Choong

The preservative challenge test is a regulatory requirement specified in various pharmacopoeias to determine the efficacy of preservatives. However, such testing is a labour-intensive repetitive task and often requires days before results can be generated. Microbial biosensors have the potential to provide a rapid and automated alternative to the traditional viable counting currently in use. Ho...

ژورنال: بوم شناسی آبزیان 2016

The aim of this study was to assess the effect of different light intensities and photoperiods on growth, survival, and the yolk sac absorb of the Persian sturgeon, Acipenser persicus, larvae. Larvae were reared from hatching to yolk sac absorb (eight days) at four light intensities (0, 50, 150 and 300 lux) and three photoperiods (00L:24D, 12L:12D and 24L:00D) which consisted of seven treatment...

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