Differential stress responses of early salt-stress responding genes in common wheat.
Four early salt-stress responding genes (WESR1-4) in common wheat (Triticum aestivum L.) were analyzed for their temporal accumulation of mRNA during salt stress, osmotic stress and abscisic acid (ABA) treatment. All genes showed transient stimulation by 0.15 M NaCl treatment. WESR1 and WESR2 were induced by both osmotic stress and exogenous ABA treatment. WESR3 responded to exogenous ABA, but not to osmotic stress. WESR4 did not show significant response to either osmotic stress or exogenous ABA treatment. These results suggest that wheat has at least two salt stress signal transduction pathways, an ABA-dependent and ABA-independent pathway.
Nemoto
Yasue
Y
Kihara Institute for Biological Research & Graduate School of Integrated Science, Yokohama City University, Maioka 641-12, Totsuka-ku, Yokohama 244-0813 Japan.
Sasakuma
Tetsuo
T
D000040:Abscisic Acid / Q000494:pharmacology; D018506:Gene Expression Regulation, Plant / Q000187:drug effects*; D006706:Homeostasis / Q000187:drug effects; D009997:Osmotic Pressure / Q000187:drug effects; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D018749:RNA, Plant / Q000235:genetics / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D012965:Sodium Chloride / Q000494:pharmacology*; D013997:Time Factors; D014908:Triticum / Q000187:drug effects* / Q000235:genetics* / Q000502:physiology; D014867:Water; D014883:Water-Electrolyte Imbalance / Q000235:genetics
D012333:RNA, Messenger; D018749:RNA, Plant; D014867:Water; D012965:Sodium Chloride; D000040:Abscisic Acid