Cutin monomer induces expression of the rice OsLTP5 lipid transfer protein gene.
Treatment with the cutin monomer 16-hydroxypalmitic acid (HPA), a major component of cutin, elicited the synthesis of hydrogen peroxide (H2O2) in rice leaves and induced the expression of the lipid transfer protein gene OsLTP5. Treatment with HPA also induced expression of OsLTP1, OsLTP2, and the pathogen-related PR-10 genes to a lesser extent. The OsLTP5 transcript was expressed prominently in stems and flowers, but was barely detectable in leaves. Expression of OsLTP5 was induced in shoots in response to ABA and salicylic acid. It is proposed that HPA is perceived by rice as a signal, inducing defense reactions.
Kim
Tae Hyun
TH
Department of Biological Sciences, Inha University, Incheon 402-751, Republic of Korea.
Park
Jong Ho
JH
Kim
Moon Chul
MC
Cho
Sung Ho
SH
D052179:Antigens, Plant / Q000235:genetics*; D001483:Base Sequence; D002352:Carrier Proteins / Q000235:genetics*; D017931:DNA Primers; D018506:Gene Expression Regulation, Plant / Q000502:physiology*; D008563:Membrane Lipids / Q000502:physiology*; D010940:Plant Proteins / Q000235:genetics*; D020133:Reverse Transcriptase Polymerase Chain Reaction
D052179:Antigens, Plant; D002352:Carrier Proteins; D017931:DNA Primers; D008563:Membrane Lipids; D010940:Plant Proteins; C511920:lipid transfer proteins, plant; C000521:cutin