Results 201 to 210 of about 174,673 (333)

Lipopolysaccharide (LPS) concentration in serum(a) and Proteobacteria abundance in faeces of different mouse groups after 14 weeks of dietary intervention (b).

, 2015
Ángela Moya-Pérez, Alexander Neef, Sanz Yolanda   +2 more
openalex   +2 more sources

Physical organization and phylogenetic analysis of acdR as leucine-responsive regulator of the 1-aminocyclopropane-1-carboxylate deaminase gene acdS in phytobeneficial Azospirillum lipoferum 4B and other Proteobacteria [PDF]

, 2008
Claire Prigent‐Combaret, Didier Blaha, Joël F. Pothier, Ludovic Vial, Marie-Andrée Poirier, Florence Wisniewski‐Dyé, Yvan Moënne‐Loccoz   +6 more
openalex   +1 more source

Structural analysis of the NifL‐NifA complex reveals the molecular basis of anti‐activation of nitrogen fixation gene expression in Azotobacter vinelandii

The FEBS Journal, EarlyView.
Using cryo‐EM combined with biochemical and genetic approaches, we mapped the interaction surface between NifL and NifA to gain insights into the regulation of nitrogen fixation genes in A. vinelandii. Our findings suggest that NifL, a homolog of histidine kinases lacking phosphorylation activity, evolved to act as a steric block of NifA activity ...
Marcelo Bueno Batista, Jake Richardson, Michael W. Webster, Dmitry Ghilarov, John W. Peters, David M. Lawson, Ray Dixon   +6 more
wiley   +1 more source

Prevalence of oxalotrophy in the human microbiome. [PDF]

BMC Genomics
Junier T, Palmieri F, Ubags ND, Trompette A, Koutsokera A, Junier P, Pagni M, Neuenschwander S.   +7 more
europepmc   +1 more source

Distribution and activity of nitrate and nitrite reductases in the microbiota of the human intestinal tract

The FEBS Journal, EarlyView.
Nitrate from food is first converted to nitrite by oral bacteria and then further processed in the intestine. The gut microbiota reduces nitrate and nitrite to ammonia or nitric oxide, preventing the formation of carcinogenic nitrosamines. Our analysis highlights Escherichia coli as a key player in this detoxification process, supported by other ...
Natalie Hager, Mélanie Elisabeth Gindt, Marcel Hövels, Jean‐Lou Christian Michel Dorne, Uwe Deppenmeier   +4 more
wiley   +1 more source

Zinc ion increases the effectiveness of phosphorus in agricultural soils through microbial solubilization. [PDF]

PLoS One
Tang L, Su B, Zheng X.
europepmc   +1 more source

Additional file 17 of Proteobacteria explain significant functional variability in the human gut microbiome

, 2017
Patrick H. Bradley, Katherine S. Pollard
openalex   +1 more source

Unlocking nitrogen regulation: structural insights into the NifL‐NifA complex and prospects for engineered diazotrophs

The FEBS Journal, EarlyView.
The urgent need for sustainable agriculture places biological nitrogen fixation at the forefront of current biotechnological research. Plant growth‐promoting rhizobacteria play crucial roles in agriculture by enhancing nutrient absorption, regulating hormonal balance, and providing reduced nitrogen to plants. Among these, diazotrophic bacteria, such as
Edileusa Cristina Marques Gerhardt, Khaled A. Selim   +1 more
wiley   +1 more source

Bacterial porphyrins in healthy skin: Microbiota components impact melanogenesis and age‐related processes leading to Porphyr'ageing

International Journal of Cosmetic Science, EarlyView.
Porphyrins, previously linked only to acne inflammation, are now implicated in skin ageing. Their presence correlates with increased melanin, inflammation, and oxidative stress, contributing to premature ageing signs. This study introduces the concept of “Porphyr'ageing,” highlighting the detrimental effects of bacterial metabolites on skin health and ...
Marie Meunier, Morgane De Tollenaere, Cyrille Jarrin, Emilie Chapuis, Marine Bracq, Laura Lapierre, Catherine Zanchetta, Jean Tiguemounine, Amandine Scandolera, Romain Reynaud   +9 more
wiley   +1 more source

Gut microbiome alterations and their clinical and biological implications in ovarian cancer: a systematic review. [PDF]

Front Oncol
Zhang B, Mohd Sahardi NFN, Chew KT, Di W, Shafiee MN.   +4 more
europepmc   +1 more source