نتایج جستجو برای: photobacterium
تعداد نتایج: 619 فیلتر نتایج به سال:
HutB, the periplasmic hemin binding protein of Photobacterium damselae subsp. piscicida, was produced as a recombinant protein. UV-Vis spectrophotometrical analysis showed absorption spectral changes in hemin upon mixing it with the recombinant protein, indicating complex formation. Spectrophotometric titration of HutB with hemin showed saturation at a heme/HutB ratio of 1:1 and a binding affin...
background and objective: photobacterium damselae subsp. damselae is a marine pathogenic bacterium which causes disease in marine animals and human. this bacterium mostly found in coastal shallow seawater. so, the aim of this study was isolation and characterization of photobacterium damselae subsp. damselae from edible fish of persian gulf, bandar abbas. material and methods: totally 100 fish ...
Five novel strains of Photobacterium (A-394T, A-373, A-379, A-397 and A-398) were isolated from bleached coral Madracis decactis (scleractinian) in the remote St Peter & St Archipelago (SPSPA), Mid-Atlantic Ridge, Brazil. Healthy M. decactis specimens were also surveyed, but no strains were related to them. The novel isolates formed a distinct lineage based on the 16S rRNA, recA, and rpoA gene ...
نورتابی زیستی (بیولومینانس) واکنشی شیمیایی است که سبب نشر نور در موجودات زنده می گردد. باکتری های نورافشان، فراوان ترین موجودات نورافشان در طبیعت هستند. برای شناسایی این باکتری ها از آزمون های بیوشیمیایی استفاده می شود. بررسی مولکولی ژن luxa که توالی آن در باکتری های نورافشان متفاوت است، می تواند در تشخیص این باکتری ها مناسب باشد. در پژوهش حاضر، نتایج تعیین جنس باکتری های نورافشان بر اساس آزمون...
Photobacterium leiognathi is a bioluminescent symbiont of fish of the Leiognathidae family. Here, we present the full-genome sequence of P. leiognathi strain JS01, a strain isolated from a nonluminescent Loligo sp. squid of Singaporean origin. No finished genome sequence of this species is currently publicly available.
We report here the first instance of a complete replacement of vertically inherited luminescence genes by horizontally acquired homologues. Different strains of Photobacterium aquimaris contain homologues of the lux-rib genes that have a different evolutionary history. Strain BS1 from the Black Sea contains a vertically inherited lux-rib operon, which presumably arose in the ancestor of this sp...
Bioluminescence, the biological production of light, is an unusual characteristic that is observed in certain members of the genera Vibrio, Photobacterium, Photorhabdus, and Shewanella. The bioluminescence system is composed of a group of proteins, including luciferase the main enzyme responsible for light production. I have isolated a bioluminescent strain of gram negative cocci from marine sh...
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