Results 11 to 20 of about 1,677 (151)

Copper binding by Pseudomonas aeruginosa

open access: yes, 1981
A copper-binding complex formed in the exopolysaccharide fraction of Image was isolated and characterized using a variety of techniques. By comparison with model Cu(II) complexes of uronic acids, it is shown that the Image forms a square-planer, cupric ...
Rao, CNR, Sarode, PR
core   +2 more sources

XANES and EXAFS of copper compounds: studies of copper carboxylates with metal-metal bonds and of the complex formed by Pseudomonas aeruginosa

open access: yes, 1983
X-ray absorpion near edge structure (XANES) of copper compounds with copper in 1+, 2+ and 3+ states has been studied. Extended X-ray absorption fine structure (EXAFS) has been employed to determine bond distances and coordination numbers in several model
Sarode, P. R.   +5 more
core   +2 more sources

Lewis-Acidic Polyoxometalates as Reusable Catalysts for the Synthesis of Glucuronic Acid Esters under Microwave Irradiation

open access: yes, 2010
International audienceD-Glucuronic acid (GlcA) is an ubiquitous compound of oligo-and polysaccharides of biological importance. GlcA derivatives have been prepared for several applications, as surface-active compounds [1,2] or as bioactive molecules. [3]
Dupré, Nathalie   +19 more
core   +1 more source

Gut microbiome seasonality is associated with dietary plasticity and coexistence in three sympatric Pamir ungulates

open access: yesiMetaOmics, EarlyView.
This graphical abstract outlines a multi‐omics framework investigating the seasonal dietary composition and gut microbial communities of three coexisting ungulate species inhabiting the extreme high‐altitude Pamir Plateau (Ovis ammon polii, Capra sibirica, and Pseudois nayaur). By integrating dietary DNA metabarcoding, 16S rRNA gene sequencing, shotgun
Dilala Tuoliu   +8 more
wiley   +1 more source

Determination of urinary ortho- and meta-cresol in humans by headspace SPME gas chromatography-mass spectrometry

open access: yes, 2005
ortho-Cresol (o-C) and meta-cresol (m-C) are minor urinary metabolites of toluene, a widely used chemical with neurotoxicological properties. A new assay for their determination in human urine is here proposed.
L. Campo   +5 more
core   +1 more source

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

open access: yesIntegrative 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

Microbiota‐Mediated Sequential Gallery Colonization by Adults and Larvae of an Invasive Bark Beetle

open access: yesIntegrative Zoology, EarlyView.
Dispersing adult beetles harbor more pinitol‐degrading microbes to colonize novel host pines with high levels of pinitol stress. These microbes from the beetle's exoskeleton and gut will be transmitted into the gallery via adults’ feeding and frass, whose proliferation in the gallery contributes to the formation of a low‐pinitol microhabitat.
Wei Chen   +7 more
wiley   +1 more source

Multiplexed Nanosensors for Real‐Time Monitoring of VOC‐Mediated Signalling Response in Plants

open access: yesPlant, Cell &Environment, Volume 49, Issue 12, Page 9907-9931, December 2026.
ABSTRACT To enhance crop performance, intercropping strategies leverage volatile organic compound (VOC)‐driven interactions with companion plants that constitutively emit VOCs. Despite the agricultural importance, the mechanisms and kinetics of VOC‐mediated sensory transduction in receiver plants eavesdropping on neighbouring non‐kin emitters remain ...
Mervin Chun‐Yi Ang   +13 more
wiley   +1 more source

A multi-component pheromone in the urine of dominant male tilapia (Oreochromis mossambicus) reduces aggression in rivals

open access: yes, 2016
Males often use scent to communicate their domi- nance, and to mediate aggressive and breeding behaviors. In teleost fish, however, the chemical composition of male pher- omones is poorly understood.
Barata, Eduardo Nuno   +6 more
core   +1 more source

Biochar‐Driven Microbial Shifts Enhance Feed Digestibility and Mitigate Methane Emissions in Hybrid Pennisetum Silage

open access: yesGCB Bioenergy, Volume 18, Issue 11, November 2026.
This study investigated the effects of cellulase, propionate, and cow dung biochar as additives on the silage quality of hybrid Pennisetum. The results indicated that the incorporation of biochar not only improved fermentation quality but also reduced methane production and enhanced in vitro dry matter digestibility.
Jie Qiao   +4 more
wiley   +1 more source

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