Results 31 to 40 of about 8,065 (240)

Molecular cloning and characterization of a thermostable esterase/lipase produced by a novel Anoxybacillus flavithermus strain [PDF]

, 2013
A thermophilic strain producing an extracellular esterase/lipase was isolated from a hot spring in Tǎşnad, Romania, and was identified phenotypically and by 16S rDNA sequencing as Anoxybacillus flavithermus (GenBank ID: JQ267733).
Beata G. Vértessy, Florin Dan Irimie, Hriscu, M., Vértessy G., Beáta, Nagy, Gergely, Gergely Róna, Gergely Nagy, Bica, A., Monica Hriscu, Róna, Gergely, Adriana Bica, Laura Chiş, Chiş, L., Monica Toşa   +13 more
core   +1 more source

Seasonal Dynamics of Culturable Yeasts in Ornithogenically Influenced Soils in a Temperate Forest and Evaluation of Extracellular Enzyme Secretion in Tausonia pullulans at Different Temperatures

Journal of Fungi
The culturable yeast communities in temperate forest soils under the ornithogenic influence were studied in a seasonal dynamic. To investigate the intense ornithogenic influence, conventional and “live” feeders were used, which were attached to trees in ...
Anna Glushakova, Anna Sharova, Aleksey Kachalkin   +2 more
doaj   +1 more source

Bioactive Products From Plant-Endophytic Gram-Positive Bacteria

Frontiers in Microbiology, 2019
Endophytes constitute plant-colonizing microorganisms in a mutualistic symbiosis relationship. They are found in most ecosystems reducing plant crops’ biotic and abiotic stressors by stimulating immune responses, excluding plant pathogens by niche ...
María J. Ek-Ramos, Ricardo Gomez-Flores, Alonso A. Orozco-Flores, Cristina Rodríguez-Padilla, Guadalupe González-Ochoa, Patricia Tamez-Guerra   +5 more
doaj   +1 more source

Determination of insecticides’ lethal concentrations and metabolic enzyme levels in Triatoma dimidiata

Salud Pública de México, 2020
Objective. The feasibility of the use of WHO impregnated paper and biochemical assays to determine lethal concentra­tions (LC50 and LC99) and insecticide metabolic enzyme levels of Triatoma dimidiata. Materials and methods.
Arturo Acero-Sandoval, R Patricia Penilla-Navarro, Teresa López-Ordóñez, Mario H Rodríguez, José Genaro Ordóñez-González, Francisco Solís-Santoyo, Américo D Rodríguez   +6 more
doaj   +1 more source

Characterization of carboxylesterases involved in the insecticide resistance of Culex quinquefasciatus from the Caribbean and South America. [PDF]

The organophosphate resistance-associated elevated esterases Estα2, Estβ1 and Estβ2 were purified to homogeneity from larvae of the Cuban Habana strain.
Small, Graham John
core   +1 more source

Toxicity of Plant Secondary Metabolites Modulating Detoxification Genes Expression for Natural Red Palm Weevil Pesticide Development

Molecules, 2017
This study aimed to explore the larvicidal and growth-inhibiting activities, and underlying detoxification mechanism of red palm weevil against phenylpropanoids, an important class of plant secondary metabolites.
Ahmed Mohammed AlJabr, Abid Hussain, Muhammad Rizwan-ul-Haq, Hassan Al-Ayedh   +3 more
doaj   +1 more source

A novel assay reveals the blockade of esterases by piperonyl butoxide

, 2008
BACKGROUND: Conventional in vitro assays sometimes fail to reveal esterase inhibition by piperonyl butoxide (PBO), although synergism studies suggest loss of esterase-mediated sequestration of insecticide does take place.
Field, L. M., Georgina Bingham, Moores, G. D., Anna C Khot, Bingham, G., Linda M Field, Graham D Moores, Khot, A. C.   +7 more
core   +1 more source

Xenobiotic-hydrolysing esterases from crops and Arabidopses: characterisation of a S-formylglutathione hydrolase [PDF]

, 2003
Esterases represent an ancient family of enzymes, found across all kingdoms, which have diverged and occupied a wide range of functional niches. Because of their biochemical diversity and electrophoretic variability, esterases are widely used as genetic ...
Kordić, Sandra
core  

De novo synthesis of short‐chain aldehydes and hydrocarbons secreted by the brown marmorated stink bug Halyomorpha halys

FEBS Open Bio, EarlyView.
The brown marmorated stink bug, Halyomorpha halys, mainly secretes 4‐oxo‐(E)‐2‐hexenal, (E)‐2‐decenal, dodecane and tridecane, a mixture representative of that released by many heteropterans. We demonstrated that H. halys can synthesise these secretory components de novo using dietary glucose.
Haruna Fujimori, Koji Noge
wiley   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

FEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey, Miriam Livier Llamas‐García, Gabriela M. Montero‐Morán, Leticia Santos, Samuel Lara‐González   +4 more
wiley   +1 more source