Diverse expression profiles of 21 rice peroxidase genes.
Secretory class III plant peroxidases (POXs) catalyze the oxidation of various reductants, and are encoded by a large multigene family. In rice, 42 independent expressed sequence tags for POXs have been identified. By RNA gel blot analysis using specific probes, we show here that 21 rice POX genes are unique in their developmental, organ specific and external stimuli-responsive expression. This would suggest that encoded POX isoenzymes are involved in a broad range of physiological processes in rice plants, individually.
Hiraga
S
S
Department of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Sapporo, Japan.
Yamamoto
K
K
Ito
H
H
Sasaki
K
K
Matsui
H
H
Honma
M
M
Nagamura
Y
Y
Sasaki
T
T
Ohashi
Y
Y
D020224:Expressed Sequence Tags; D020869:Gene Expression Profiling; D018506:Gene Expression Regulation, Plant / Q000187:drug effects / Q000528:radiation effects; D017343:Genes, Plant / Q000235:genetics* / Q000502:physiology; D007527:Isoenzymes / Q000235:genetics / Q000502:physiology; D005810:Multigene Family / Q000235:genetics; D009943:Organophosphorus Compounds / Q000494:pharmacology; D012275:Oryza / Q000187:drug effects / Q000201:enzymology* / Q000235:genetics* / Q000254:growth & development; D010269:Paraquat / Q000494:pharmacology; D009195:Peroxidase / Q000235:genetics* / Q000502:physiology; D010935:Plant Diseases / Q000235:genetics; D018515:Plant Leaves / Q000187:drug effects / Q000201:enzymology / Q000235:genetics / Q000528:radiation effects; D018517:Plant Roots / Q000187:drug effects / Q000201:enzymology / Q000235:genetics / Q000528:radiation effects; D012333:RNA, Messenger / Q000032:analysis / Q000235:genetics; D018749:RNA, Plant / Q000032:analysis / Q000235:genetics; D017386:Sequence Homology, Amino Acid; D014466:Ultraviolet Rays
D007527:Isoenzymes; D009943:Organophosphorus Compounds; D012333:RNA, Messenger; D018749:RNA, Plant; D009195:Peroxidase; D010269:Paraquat; C005073:ethephon