Hydrogen peroxide-induced gene expression in Arabidopsis thaliana.
Hydrogen peroxide (H(2)O(2)) is generated in plants after exposure to a variety of biotic and abiotic stresses, and has been shown to induce a number of cellular responses. Previously, we showed that H(2)O(2) generated during plant-elicitor interactions acts as a signaling molecule to induce the expression of defense genes and initiate programmed cell death in Arabidopsis thaliana suspension cultures. Here, we report for the first time the identification by RNA differential display of four genes whose expression is induced by H(2)O(2). These include genes that have sequence homology to previously identified Arabidopsis genes encoding a late embryogenesis-abundant protein, a DNA-damage repair protein, and a serine/threonine kinase. Their putative roles in H(2)O(2)-induced defense responses are discussed.
Desikan
R
R
Department of Biological and Biomedical Sciences, University of the West of England, Bristol, UK.
Neill
S J
SJ
Hancock
J T
JT
D000595:Amino Acid Sequence; D017360:Arabidopsis / Q000187:drug effects* / Q000235:genetics* / Q000378:metabolism; D001483:Base Sequence; D017931:DNA Primers / Q000235:genetics; D018506:Gene Expression Regulation, Plant / Q000187:drug effects; D017343:Genes, Plant / Q000187:drug effects*; D006861:Hydrogen Peroxide / Q000378:metabolism / Q000494:pharmacology*; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D018749:RNA, Plant / Q000235:genetics / Q000378:metabolism; D017386:Sequence Homology, Amino Acid
D017931:DNA Primers; D012333:RNA, Messenger; D018749:RNA, Plant; D006861:Hydrogen Peroxide