Results 81 to 90 of about 29,019 (254)

The incorporation of labeled lysine into the proteins of guinea pig liver homogenate [PDF]

, 1949
When C14-labeled lysine is incubated with guinea pig liver homogenate, α-aminoadipic, α-ketoadipic, and glutaric acids are formed from the lysine (1). These transformations were established by finding the radioactivity of the C14 tracer in the metabolic ...
Borsook, Henry, Deasy, Clara L., Haagen-Smit, A. J., Keighley, Geoffrey, Lowy, Peter H.   +4 more
core  

Determination of an Interaction Network between an Extracellular Bacterial Pathogen and the Human Host [PDF]

, 2019
A major gap in understanding infectious diseases is the lack of information about molecular interaction networks between pathogens and the human host.
Barnes, Stephen, Fortney, Kate R., Gao, Hongyu, Griesenauer, Brad, Janowicz, Diane M., Johnson, Paula, Liu, Yunlong, Spinola, Stanley M., Tran, Tuan M., Wilson, Landon S.   +9 more
core   +1 more source

Surviving global change: a review of the impacts of drought and dewatering on freshwater mussels

Biological Reviews, Volume 100, Issue 1, Page 275-307, February 2025.
ABSTRACT The increase in the frequency and intensity of droughts and heatwaves caused by climate change poses a major threat to biodiversity. In aquatic systems, sedentary species such as freshwater mussels are generally considered more vulnerable to changes in habitat conditions than mobile species such as fish.
Kiara C. Cushway, Juergen Geist, Astrid N. Schwalb   +2 more
wiley   +1 more source

In thermotolerance tests of tropical tree leaves, the chlorophyll fluorescence parameter Fv/Fm measured soon after heat exposure is not a reliable predictor of tissue necrosis

Plant Biology, Volume 27, Issue 1, Page 146-153, January 2025.
Heat tolerance assays based solely on the decline of photosystem II quantum efficiency (Fv/Fm) soon after heat exposure may underestimate the temperature above which irreversible leaf damage occurs and may be species specific. Abstract Tropical rainforests are hot and may be particularly sensitive to ongoing anthropogenic global warming.
K. Winter, C. R. Krüger Nuñez, M. Slot, A. Virgo   +3 more
wiley   +1 more source

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

Food 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, Rosa María Capita González, Baltasar Mayo Pérez, Gloria Sánchez Moragas, Antonio Valero Díaz   +4 more
wiley   +1 more source

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

Molecular 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, Veronika Jarosova, Petr Marsik, Anna Mascellani Bergo, Ondrej Cinek, Lucie Hlinakova, Pavel Kloucek, Vaclav Janousek, Kateřina Valentová, Jaroslav Havlik   +9 more
wiley   +1 more source

High altitude adaptation and anaerobiosis in sceloporine lizards [PDF]

Comparative 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

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]

, 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, Jacquier, Nicolas, Just, Ursula, Lin, Meng, Schneiter, Roger, Unden, Heike   +5 more
core   +2 more sources

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

Functional 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]

, 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