Results 121 to 130 of about 33,489 (291)

The Cdc42 effectors Ste20, Cla4, and Skm1 down-regulate the expression of genes involved in sterol uptake by a mitogen-activated protein kinase-independent pathway [PDF]

open access: yes, 2009
© 2009 by The American Society for Cell Biology. Under the License and Publishing Agreement, authors grant to the general public, effective two months after publication of (i.e.,.
Höfken, Thomas   +5 more
core   +2 more sources

High altitude adaptation and anaerobiosis in sceloporine lizards [PDF]

open access: yesComparative Biochemistry and Physiology Part A: Physiology, 1975
Abstract o 1. The duration of maximal activity and the intensity of anaerobic metabolism were measured in lowland Sceloporus occidentalis at low (200 ft) and high (10,150 ft) elevations and compared to those of resident S. occidentalis and S. graciosus at high altitude. 2.
John A. Ruben, Albert F. Bennett
openaire   +3 more sources

Report of the Scientific Committee of the Spanish Agency for Food Safety and Nutrition (AESAN) on the risk assessment of botulism resulting from the consumption of vacuum‐packed or modified atmosphere‐packed foods

open access: yesFood Risk Assess Europe, Volume 3, Issue 1, January 2025.
Abstract Foodborne botulism is caused by the ingestion of a neurotoxin (BoNT) primarily produced by Clostridium botulinum. This bacterium is classified into six phenotypic Groups, with Groups I and II being associated with human disease. BoNT are divided into seven main types with different antigenic potentials, of which types A, B, E, and F are ...
María Dolores Rodrigo Aliaga   +4 more
wiley   +1 more source

Mutual Interactions of Silymarin and Colon Microbiota in Healthy Young and Healthy Elder Subjects

open access: yesMolecular Nutrition &Food Research, Volume 68, Issue 22, November 2024.
This study investigated gut microbiota and silymarin metabolism across age groups using an in vitro colon model. Silymarin at 50 µg mL−1 altered gut microbiota, reducing SCFAs production, glucose utilization, and increasing α‐diversity. Age differences were noted: elderly donors showed increased catabolite production linked to Oscillibacter sp., while ...
Katerina Tomisova   +9 more
wiley   +1 more source

Oxygen availability strongly affects chronological lifespan and thermotolerance in batch cultures of Saccharomyces cerevisiae

open access: yesMicrobial Cell, 2015
Stationary-phase (SP) batch cultures of Saccharomyces cerevisiae, in which growth has been arrested by carbon-source depletion, are widely applied to study chronological lifespan, quiescence and SP-associated robustness.
Markus M.M. Bisschops   +5 more
doaj   +1 more source

Seasonal acclimation of photosynthetic thermal tolerances in six woody tropical species along a thermal gradient

open access: yesFunctional Ecology, Volume 38, Issue 11, Page 2493-2505, November 2024.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Extreme heat events are becoming increasingly common, and the short‐term acclimation of photosynthesis will have a large impact on plant performance. Trees in lowland tropical forests, which are hypothesized to have limited abilities to tolerate rising temperatures, may
Alyssa T. Kullberg, Kenneth J. Feeley
wiley   +1 more source

The role of the Viviparous1 (Vp1) gene in anaerobic inhibition of maize embryo germination [PDF]

open access: yes, 2009
An anaerobic or hypoxic environment surrounding the plant seed or embryo is thought to be a crucial factor in controlling maturation and the germination transition.
Su, Lixun
core   +3 more sources

Dark Anaerobic Conditions Induce a Fast Induction of the Xanthophyll Cycle in Chlamydomonas reinhardtii When Exposed to High Light

open access: yesMicroorganisms
Background: Dark anaerobiosis promotes the acidification of the thylakoid lumen and a reduction in the plastoquinone (PQ) pool. The relationship between the reduction in the PQ pool in the dark and the induction of the xanthophyll cycle under high light ...
Cecilia Faraloni   +2 more
doaj   +1 more source

Time dynamics of the Bacillus cereus exoproteome are shaped by cellular oxidation

open access: yesFrontiers in Microbiology, 2015
At low density, Bacillus cereus cells release a large variety of proteins into the extracellular medium when cultivated in pH-regulated, glucose-containing minimal medium, either in the presence or absence of oxygen. The majority of these exoproteins are
Jean-Paul eMadeira   +6 more
doaj   +1 more source

Self-induced anaerobiosis coffee fermentation: Impact on microbial communities, chemical composition and sensory quality of coffee.

open access: yesFood microbiology, 2021
Thayanna Scopel Pereira   +6 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy