Results 61 to 70 of about 26,292 (190)

The usage of nitrogen compounds by purple non-sulfur bacteria of the Rhodopseudomonas genus

Regulatory Mechanisms in Biosystems, 2019
In this article, we characterized the regularities of oxidation of nitrite ions by phototropic purple non-sulfur bacteria Rhodopseudomonas yavorovii IMV B-7620, which were isolated from the water of Yavorivske Lake (Lviv Region, Ukraine).
О. V. Tarabas, S. О. Hnatush, О. М. Мoroz   +2 more
doaj   +1 more source

Plant‐Derived Extracts Disrupt Biofilm Formation and Quorum Sensing in Yersinia enterocolitica: Insights From GC‐MS and Molecular Docking

Food Chemistry International, EarlyView.
The graphical abstract represents how natural plant products that preferentially target the specific receptors of quorum sensing could be developed to combat biofilms linked to Yersinia enterocolitica using the potent abilities of protein–ligand complexes with high docking scores.
Rajendran Thomas, Songeeta Singha, Devarshi Bharadwaj, Abinash Kumar, Dolly Sharma, Sadhana Ojha, Hirakjyoti Das, Vivek Kumar Gupta   +7 more
wiley   +1 more source

Bistablity in Fluorescence from a purple non-sulfur bacteria [PDF]

, 2017
Abstract Bistable optical emission has been observed for photosynthetic purple non-sulfur bacteria Rhodobacter capsulatus SB1003. The microbes respond to UV excitation (at 395nm) in a bifurcating way one branch corresponding to increase and the other corresponding to diminishing ...
Bose, Anirban, Raja, Sufi O, Ray, Sanhita, Dasgupta, Anjan Kr   +3 more
openaire   +1 more source

Competition for sulfide among colorless and purple sulfur bacteria in cyanobacterial mats [PDF]

FEMS Microbiology Letters, 1986
The vertical zonation of light, O2, H2S, pH, and sulfur bacteria was studied in two benthic cyanobacterial mats from hypersaline ponds at Guerrero Negro, Baja California, Mexico. The physical-chemical gradients were analyzed in the upper few mm at < or = 100 micrometers spatial resolution by microelectrodes and by a fiber optic microprobe.
B B, Jorgensen, D J, Des Marais
openaire   +2 more sources

Organizational and Functional Principles of the Obligate Respiratory Chain Supercomplex

Journal of the Chinese Chemical Society, EarlyView.
In this review we deliver a comprehensive structural analysis of the actinobacterial respiratory chain supercomplex and discuss the principles underlying the assembly of its supramolecular architecture. ABSTRACT Proton translocating respiratory chain complexes assemble into supramolecular structures in their native cellular environment, yet the ...
Wei‐Chun Kao, Nick Hiatt, Carola Hunte
wiley   +1 more source

Fundamental aspects of sucrose metabolism reveal a trophic link between Rhodospirillum rubrum and Rhodobacter capsulatus

mBio
Purple non-sulfur bacteria (PNSB) are well known to have an exceptional metabolic versatility. However, while the growth of PNSB on sugar-rich streams has been extensively explored, their ability to metabolize sugars is poorly understood.
Manon Gilson, Guillaume Bayon-Vicente, Simone Krings, Laura Toubeau, Ruddy Wattiez, Baptiste Leroy   +5 more
doaj   +1 more source

Revisiting small‐molecule fluorescent probes in food freshness detection

Smart Molecules, EarlyView.
Fluorescent probes serve as versatile tools for food freshness monitoring. This review summarizes recent advances in probes targeting biogenic amines, hydrogen sulfide, pH values, and other key spoilage markers, highlighting their design principles, sensing mechanisms, and practical applications in food quality monitoring. Abstract Food spoilage driven
Xinrui Wang, Zhao Wang, Jingwen Zou, Xuyuan Jiang, Changyu Bian, Zhiqiang Mao   +5 more
wiley   +1 more source

Comparison of Three Sympatric Desert Lizards: Digestive Tract Structure, Digestive Enzyme Activities, Gut Microbiota, and Metabolites

Integrative Zoology, EarlyView.
We performed 16S rDNA sequencing and metabolite profiling for three sympatric lizard species—Teratoscincus roborowskii, Phrynocephalus axillaris, and Eremias roborowskii—and compared their goblet cell and enzyme activities in the digestive tract. Our study suggests that the dietary niche may promote divergence or convergence of microbiota across host ...
Yi Yang, Ziyi Wang, Ruichen Wu
wiley   +1 more source

Rôle of purple sulfur bacteria in swine waste reclamation

Agricultural Wastes, 1984
Abstract Growth characteristics and treatment capacity of a mixed population of Chromatiaceae (purple sulfur bacteria) were determined using settled, sieved swine waste as a growth medium. The bacteria were cultured in Erlenmeyer flasks under incandescent illumination at a temperature of 26°C. They survived ephemeral sulfide concentrations of up to
Department of Environmental Engineering Sciences, University of Florida, Gainesville, Florida 32611, USA ( host institution ), Earle, J.F.K., Koopman, B., Lincoln, E.P.   +3 more
openaire   +2 more sources

S‐Adenosylmethionine (SAM) hydrolases counter increased SAM epimerisation in thermophilic archaea

The FEBS Journal, EarlyView.
S‐Adenosyl‐l‐methionine (SAM) is a vital enzyme cofactor. Epimerisation at the sulfonium centre of biologically active (SS,SCα)‐SAM is driven by heat, yielding biologically inactive (RS,SCα)‐SAM. Here, two novel archaeal SAM hydrolases from the thermophilic Sulfolobus acidocaldarius and the halophilic Haloferax volcanii are shown to cleave (RS,SCα)‐SAM.
Agnes Bartels, Michael K. F. Mohr, Phillip Nußbaum, Marie Joest, Bianca Wassmer, Laurent Rasquin, Sonja‐Verena Albers, Jennifer N. Andexer   +7 more
wiley   +1 more source