Isolation and characterisation of a cassava catalase expressed during post-harvest physiological deterioration.
Storage roots of cassava undergo a rapid, endogenous, post-harvest deterioration response that is thought to involve oxidative processes. A cassava catalase (MecCAT1) was isolated from a root cDNA library. The transcript is expressed predominantly in roots with little expression in leaves. Catalase enzyme activity and MecCAT1 transcript expression during the post-harvest period were compared in highly susceptible and less susceptible cultivars and suggest that high levels of catalase activity may play a role in delaying the deterioration response.
Reilly
K
K
Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK.
Han
Y
Y
Tohme
J
J
Beeching
J R
JR
D000595:Amino Acid Sequence; D001483:Base Sequence; D002374:Catalase / Q000096:biosynthesis / Q000737:chemistry / Q000235:genetics*; D015723:Gene Library; D002365:Manihot / Q000201:enzymology / Q000235:genetics / Q000502:physiology*; D008969:Molecular Sequence Data; D010802:Phylogeny; D010940:Plant Proteins / Q000737:chemistry / Q000235:genetics*; D018517:Plant Roots / Q000378:metabolism
D010940:Plant Proteins; D002374:Catalase