نتایج جستجو برای: using at correct traditions for ahl ul
تعداد نتایج: 12227517 فیلتر نتایج به سال:
Two distinct but interrelated pheromone-signaling systems, LuxI/LuxR and AinS/AinR, positively control bioluminescence in Vibrio fischeri. Although each system generates an acyl-homoserine lactone (AHL) signal, the protein sequences of LuxI/LuxR and AinS/AinR are unrelated. AinS and LuxI generate the pheromones N-octanoyl-AHL (C8-AHL) and N-3-oxo-hexanoyl-AHL (3OC6-AHL), respectively. LuxR is a...
BACKGROUND In Gram-negative bacteria, the most commonly studied quorum sensing signals are the N-acylhomoserine lactones (AHLs). In Salmonella, AHLs are recognized by SdiA, which is believed to be a sensor of AHLs produced by other bacteria, since Salmonella does not produce AHLs itself. It has been speculated that AHLs produced by the gastrointestinal flora may influence the regulation of viru...
introduction: diabetes mellitus is an growing national and international public health concern. the number of people affected by diabetes in world by 2030 will be 69% in developing countries. regular physical activity plays a key role in the management of type 2 diabetes melitus, particularly glycemic control. it has been recommended that peoples with type 2 diabetes participate in moderate-int...
The holy Quran has a two-way remark about the request of reward of the prophets' mission. Narrated from the prophets and the last of the prophets (p.b.u.h), some of the verses have negated the demanding of the mission wages on the prophets' part and have taken it into account as a specific thing to the lofty God while in some verses such as 53 Furqan, 43 Saba', and 23 Shura, wage and reward is ...
Quorum sensing is known as a communication mechanism among bacteria to control gene expression such bioluminescence, pigmentation, and pathogenicity. quenching inhibition of quorum activity. In order block activity, some produced enzymes which could degrade AHL, AHL-acylase, AHL-lactonase, AHL-oxidase reductase. this study, soil were isolated screened for their These isolates divided into Strep...
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
The revolution is the broadest and fastest change in a society, which is both the result of change and a factor for subsequent changes; The present article with a comparative method and library tools; Aiming to make a comparative study of the approach of Shiite and Sunni Muslim thinkers towards the Islamic Revolution. Research findings show that in the minds of Sunni thinkers, the priority is t...
in this thesis, we exploit a simple and suitable method for immobilization of copper(ii) complex of 4?-phenyl-terpyridine on activated multi-walled carbon nanotubes [amwcnts-o-cu(ii)-phtpy]. this nanostructure was characterized by various physico-chemical techniques. to ensure the efficiency and fidelity of copper species, the implementation of three-component strategies in click-chemistry all...
During quorum sensing in the plant pathogen Pantoea stewartii subsp. stewartii, EsaI, an acyl-homoserine lactone (AHL) synthase, and the transcription factor EsaR coordinately control capsular polysaccharide production. The capsule is expressed only at high cell density when AHL levels are high, leading to inactivation of EsaR. In lieu of detailed structural information, the precise mechanism w...
BACKGROUND N-Acyl homoserine lactone (AHL) is found to be the main component of quorum sensing (QS) in Gram-negative bacteria and plays an important role in biofilm formation. Little information is available regarding the role of AHL in biofilm formation in Escherichia coli (E. coli). The purpose of this investigation was to biochemically detect and characterize AHL activity in biofilm-forming ...
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