Transient expression of a pea MAP kinase gene induced by gibberellic acid and 6-benzyladenine in unpollinated pea ovaries.
PsMAPK3, a new MAP kinase cDNA, was cloned from ovaries of Pisum sativum L. Expression of PsMAPK3 is at low basal levels in unpollinated ovaries but it is rapidly induced by gibberellic acid (peak at 30 min) and 6-benzyladenine (peak at 45 min). Both treatments promoted the development of a parthenocarpic fruit. In situ hybridization localized PsMAPK3 mRNA in ovules. The transcript was additionally detected in the mesocarp when it is expanding in response to the treatments. These observations suggest that gibberellins and cytokinins regulate PsMAPK3 mRNA levels in pea ovary shortly after fruit set is induced.
Marcote
M J
MJ
lnstituto de Biología Molecular y Celular de Plantas, Universidad Politécnica de Valencia-CSIC, Spain.
Carbonell
J
J
D000225:Adenine / Q000031:analogs & derivatives* / Q000494:pharmacology*; D000595:Amino Acid Sequence; D001593:Benzyl Compounds; D015152:Blotting, Northern; D018076:DNA, Complementary / Q000737:chemistry / Q000235:genetics; D005638:Fruit / Q000235:genetics / Q000254:growth & development; D018507:Gene Expression Regulation, Developmental / Q000187:drug effects; D015971:Gene Expression Regulation, Enzymologic / Q000187:drug effects; D018506:Gene Expression Regulation, Plant / Q000187:drug effects; D005875:Gibberellins / Q000494:pharmacology*; D007701:Kinetin; D020928:Mitogen-Activated Protein Kinases / Q000235:genetics*; D008969:Molecular Sequence Data; D018532:Pisum sativum / Q000201:enzymology / Q000235:genetics* / Q000254:growth & development; D011687:Purines; D012333:RNA, Messenger / Q000187:drug effects / Q000235:genetics / Q000378:metabolism; D016415:Sequence Alignment; D017422:Sequence Analysis, DNA; D017386:Sequence Homology, Amino Acid; D014158:Transcription, Genetic
D001593:Benzyl Compounds; D018076:DNA, Complementary; D005875:Gibberellins; D011687:Purines; D012333:RNA, Messenger; C007842:gibberellic acid; D020928:Mitogen-Activated Protein Kinases; D000225:Adenine; C480551:benzylaminopurine; D007701:Kinetin