title: Expression of the pea S-adenosylmethionine decarboxylase gene is involved in developmental and environmental responses.
abstract: A cDNA, able to complement the S-adenosyl-L-methionine decarboxylase (SAMdC; EC 4.1.1.50)-defective yeast strain Y342, has been isolated from pea (Pisum sativum L.). Expression of the SAMdC gene was characterised during pea development. Northern analysis showed a differential expression of the pea SAMdC gene in vegetative and reproductive tissues. The highest SAMdC mRNA levels were found in undifferentiated callus and tissues with high rates of cell division, and at the onset of fruit development. SAMdC expression was also induced in senescing ovaries, probably in relation to an accumulation of spermine during ovary senescence. Finally, the levels of SAMdC transcripts in leaves and shoots were differentially affected by ozone treatment.
authors.affiliation: Departament de Bioquímica i Biologia Molecular, Universitat de Valencia, Spain.
authors.forename: Francisco
authors.initials: F
authors.lastname: Marco
authors.forename: Pedro
authors.initials: P
authors.lastname: Carrasco
mesh_terms: D012437:Adenosylmethionine Decarboxylase / Q000235:genetics*; D000595:Amino Acid Sequence; D002455:Cell Division / Q000187:drug effects / Q000235:genetics / Q000502:physiology; D018076:DNA, Complementary / Q000737:chemistry / Q000235:genetics; D004777:Environment; D005638:Fruit / Q000235:genetics / Q000254:growth & development; D018507:Gene Expression Regulation, Developmental; D015971:Gene Expression Regulation, Enzymologic; D018506:Gene Expression Regulation, Plant; D005816:Genetic Complementation Test; D008969:Molecular Sequence Data; D009154:Mutation; D010126:Ozone / Q000494:pharmacology; D018532:Pisum sativum / Q000187:drug effects / Q000235:genetics* / Q000254:growth & development; D018515:Plant Leaves / Q000187:drug effects / Q000235:genetics; D018520:Plant Shoots / Q000187:drug effects / Q000235:genetics; D012098:Reproduction / Q000235:genetics / Q000502:physiology; D012441:Saccharomyces cerevisiae / Q000187:drug effects / Q000235:genetics / Q000254:growth & development; D016415:Sequence Alignment; D017422:Sequence Analysis, DNA; D017386:Sequence Homology, Amino Acid; D013096:Spermine / Q000494:pharmacology
chemical_list: D018076:DNA, Complementary; D013096:Spermine; D010126:Ozone; D012437:Adenosylmethionine Decarboxylase