Results 151 to 160 of about 65,399 (230)

Polyamine oxidase activity and polyamine levels in human colorectal cancer and in normal surrounding mucosa.

open access: yes, 1997
BACKGROUND: Polyamine oxidase (PAO) is an enzyme involved in the interconversion pathway of polyamines, compounds required for cell proliferation and differentiation. As the role of PAO in tumor growth is unclear, and no data about PAO activity in human
DI LEO, Alfredo   +2 more
core  

Evolutionary Conserved and Divergent Responses to Copper Zinc Superoxide Dismutase Inhibition in Plants

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT After an initial evolution in a reducing environment, life got successively challenged by reactive oxygen species (ROS), especially during the great oxidation event (GOE) that followed the development of photosynthesis. Therefore, ROS are deeply intertwined into the physiological, morphological and transcriptional responses of most present‐day
Stephanie Frohn   +12 more
wiley   +1 more source

Plant NAOGAT (ArgJ) Structure Reveals Mechanism of Ornithine Biosynthesis, Preference for Acetylornithine and Susceptibility to Mangotoxin

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Arginine metabolism in plants is targeted by phytopathogens such as Pseudomonas syringae strains, which produce toxins that affect enzymes of plant arginine metabolism, causing devastating infections in crops. In this work, the structural and functional properties of plant N‐acetylornithine glutamate acetyltransferase (NAOGAT), the key ...
Maciej Nielipinski   +3 more
wiley   +1 more source

Spatial Association Between Polyamine Metabolism and Lipid Peroxidation in Different Pathological Regions of Glioblastoma. [PDF]

open access: yesBiomedicines
Qu Z   +14 more
europepmc   +1 more source

Perturbation of Spermine Homoeostasis Uncouples Hypersensitive Cell Death From Systemic Plant Immunity

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Polyamines are key regulators of plant stress responses, yet their contribution to coordinating local immune responses with systemic immunity remains poorly understood. Here, we investigated how spermine (Spm) homeostasis influences local and systemic defence responses in Arabidopsis thaliana following inoculation with Pseudomonas syringae pv.
Jiaqi Zhao   +3 more
wiley   +1 more source

Extension of host lifespan by polyamines derived from gut bacteria. [PDF]

open access: yesmBio
Shimokawa H   +11 more
europepmc   +1 more source

Microbial Partnerships for Sustainable Soybean Cultivation: Mechanisms, Applications and Prospects

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Soybean production is increasingly threatened by fluctuating environmental conditions and nutrient limitations. While synthetic fertilisers can alleviate these constraints, their excessive use has raised concerns regarding long‐term soil health. Consequently, leveraging beneficial soil microbes, a diverse group of microorganisms that reside in
Carolina A. Contador   +4 more
wiley   +1 more source

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