نتایج جستجو برای: bioluminescent

تعداد نتایج: 2031  

Journal: :jundishapur journal of microbiology 0
esra ersoy omeroglu biology department, faculty of science, basic and industrial microbiology section, ege university, bornova-izmir, turkey; biology department, faculty of science, basic and industrial microbiology section, ege university, bornova-izmir, turkey. tel: +90-2323112811, fax: +90-2323881036

conclusions the obtained results revealed that there has been a high rate of genetic diversity in bioluminescent strains isolated from gulf of izmir and v. lentus and v. crassostreae strains could be also bioluminescent for the first report. at the same time, pfge analysis of bioluminescent bacteria including four different genera and ten different species were shown for the first time by this ...

2016
Matthew P. Davis John S. Sparks W. Leo Smith

Bioluminescence is primarily a marine phenomenon with 80% of metazoan bioluminescent genera occurring in the world's oceans. Here we show that bioluminescence has evolved repeatedly and is phylogenetically widespread across ray-finned fishes. We recover 27 independent evolutionary events of bioluminescence, all among marine fish lineages. This finding indicates that bioluminescence has evolved ...

2014
Julien M. Claes Dan-Eric Nilsson Nicolas Straube Shaun P. Collin Jérôme Mallefet

Counterilluminating animals use ventral photogenic organs (photophores) to mimic the residual downwelling light and cloak their silhouette from upward-looking predators. To cope with variable conditions of pelagic light environments they typically adjust their luminescence intensity. Here, we found evidence that bioluminescent sharks instead emit a constant light output and move up and down in ...

2016
Hannah M. Read Grant Mills Sarah Johnson Peter Tsai James Dalton Lars Barquist Cristin G. Print Wayne M. Patrick Siouxsie Wiles

Bioluminescent reporter genes, such as those from fireflies and bacteria, let researchers use light production as a non-invasive and non-destructive surrogate measure of microbial numbers in a wide variety of environments. As bioluminescence needs microbial metabolites, tagging microorganisms with luciferases means only live metabolically active cells are detected. Despite the wide use of biolu...

2012
Xiaowei Zhao Jiakui Li Yanxin Huang Zhiqiang Ma Minghao Yin

Bioluminescent proteins are important for various cellular processes, such as gene expression analysis, drug discovery, bioluminescent imaging, toxicity determination, and DNA sequencing studies. Hence, the correct identification of bioluminescent proteins is of great importance both for helping genome annotation and providing a supplementary role to experimental research to obtain insight into...

Journal: :The Biological Bulletin 1963

2007
Matthew J. Oliver Mark A. Moline Curtis D. Mobley Lydia Sundman Oscar M. E. Schofield

[1] Many bioluminescence observations are made from the ocean’s surface. However, the depth of the bioluminescent source is difficult to estimate on the basis of surface observations alone, given the variable light attenuation of unknown concentrations of water column constituents such as phytoplankton, colored dissolved organic matter, and detritus. Part 1 of this paper showed that bioluminesc...

Journal: :Nanoscale 2021

Polymersome-based bioluminescent nanocompartment to achieve enzyme protection and switch kinetics produce a persistent light signal.

Journal: :BioMedical Engineering OnLine 2004
Wenxiang Cong Lihong V Wang Ge Wang

BACKGROUND The bioluminescent enzyme firefly luciferase (Luc) or variants of green fluorescent protein (GFP) in transformed cells can be effectively used to reveal molecular and cellular features of neoplasia in vivo. Tumor cell growth and regression in response to various therapies can be evaluated by using bioluminescent imaging. In bioluminescent imaging, light propagates in highly scatterin...

2014
Martha Valiadi Stuart C. Painter John T. Allen William M. Balch M. Debora Iglesias-Rodriguez

We investigated the distribution of bioluminescent dinoflagellates in the Patagonian Shelf region using "universal" PCR primers for the dinoflagellate luciferase gene. Luciferase gene sequences and single cell PCR tests, in conjunction with taxonomic identification by microscopy, allowed us to identify and quantify bioluminescent dinoflagellates. We compared these data to coincidental discrete ...

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