Ontology highlight
ABSTRACT:
SUBMITTER: Yang T
PROVIDER: S-EPMC122654 | biostudies-literature | 2002 Mar
REPOSITORIES: biostudies-literature
Proceedings of the National Academy of Sciences of the United States of America 20020312 6
Environmental stimuli such as UV, pathogen attack, and gravity can induce rapid changes in hydrogen peroxide (H(2)O(2)) levels, leading to a variety of physiological responses in plants. Catalase, which is involved in the degradation of H(2)O(2) into water and oxygen, is the major H(2)O(2)-scavenging enzyme in all aerobic organisms. A close interaction exists between intracellular H(2)O(2) and cytosolic calcium in response to biotic and abiotic stresses. Studies indicate that an increase in cyto ...[more]