Results 231 to 240 of about 20,026 (345)

NasT-Mediated Antitermination Plays an Essential Role in the Regulation of the Assimilatory Nitrate Reductase Operon in Azotobacter vinelandii [PDF]

, 2012
Baomin Wang, Leland S. Pierson, Christopher Rensing, Malkanthi K. Gunatilaka, Christina Kennedy   +4 more
openalex   +1 more source

Influence of Age and Exposure Pathway on Copper and Cadmium Mixture Toxicity: A Study on Daphnia magna

Environmental Toxicology, EarlyView.
ABSTRACT Metal contamination in aquatic ecosystems poses substantial risks to freshwater organisms, with mixture effects often deviating from predictions based on single‐metal toxicity. Understanding how age‐specific sensitivities and multiple exposure pathways influence mixture effects is critical for accurate risk assessment.
Sanah Majid, Karen Smeets, Mubiana K. Valentine, Ronny Blust   +3 more
wiley   +1 more source

The effect of used engine oil on carbohydrate, mineral content and nitrate reductase activity of leafy vegetable (<i>Amaranthus hybridus</i> L.)

, 2010
VJ Odjegba, JO Atebe
openalex   +2 more sources

The Effects of Phosphate Starvation on the Activities of Acid and Alkaline Phosphatase, Fructose-1,6-bisphosphatase, Sucrose-phosphate Synthase and Nitrate Reductase in Melon (Cucumis melo L.) Seedlings [PDF]

, 2016
Sang-Jae Kang, Chang‐Hee Lee, Man Park
openalex   +1 more source

Structural insights into urocanate reductase using room‐temperature X‐ray crystallography

Acta Crystallographica Section D, EarlyView.
The active‐site dynamics of the microbial enzyme urocanate reductase were revealed by room‐temperature X‐ray crystallography.Urocanate reductase (UrdA) is a bacterial enzyme that converts urocanic acid to imidazole propionate. Its catalytic residue Arg411 undergoes a large conformational change in the substrate‐bound versus product‐bound states.
Swati Aggarwal, Nitisha Gurav, Esko Oksanen, Karin Lindkvist-Petersson, Raminta Venskutonytė   +4 more
wiley   +1 more source

Mechanistic advances in microbial nanobiotechnology and their applications in sustainable agriculture, environment and biomedicine. [PDF]

Discov Nano
Rabani MS, Shrivastav M, Fayaz M, Pathak A, Khan M, Bashir SU, Hamid I, Hussain H, Sharma JK, Gupta MK.   +9 more
europepmc   +1 more source

In vitro and in vivo metabolism profiles of cathinone and pseudoephedrine: Discrimination between khat and pseudoephedrine uses

Journal of Forensic Sciences, EarlyView.
Abstract In the present study, the metabolism of khat (Catha edulis) and pseudoephedrine was compared with the aim of identifying objective criteria that could be used to discriminate between them for forensic and doping‐control purposes. An in vitro study using human liver microsomes and an in vivo study using rat urine were performed under harmonized
Jong Suk Park, Jun Sang Yu, Yejin Kim, Hee Seung Kim, Jae Chul Cheong, Jin Young Kim, Hye Hyun Yoo   +6 more
wiley   +1 more source

NirA is a Cyanide-Tolerant Nitrite Reductase Which Protects Pseudomonas aeruginosa From Self-Poisoning. [PDF]

Environ Microbiol Rep
Fenn S, Lambert C, Panagiotopulou D, Massey R, Cámara M.   +4 more
europepmc   +1 more source

The effects of light and nitrate levels on the relationship between nitrate reductase activity and ¹⁵NO₃⁻ uptake: Field observations in the East China Sea

, 2000
Chin‐Chang Hung, George T.F. Wong, Kon‐Kee Liu, Shiah Fuh‐Kwo, Gong Gwo‐Ching   +4 more
openalex   +2 more sources

Ozone‐driven degradation of sex pheromone in Plutella xylostella: Implications for reproductive communication and mating success

Insect Science, EarlyView.
In this study, we examined whether realistic ozone concentrations can interfere with sexual communication in the insect pest Plutella xylostella, the diamondback moth. Ozone exposure caused a degradation of pheromone components, leading to significant changes in blend composition and component ratios.
Francesco Sorrentino, Delia M. Pinto‐Zevallos, Oksana Skaldina, James D. Blande   +3 more
wiley   +1 more source