title: Sequential expression of two 1-aminocyclopropane-1-carboxylate synthase genes in response to biotic and abiotic stresses in potato (Solanum tuberosum L.) leaves.
abstract: Plants produce ethylene in response to many biotic and abiotic stresses. In response to ozone the foliage of potato plants sequentially expressed two ACC synthase genes (ST-ACS4, ST-ACS5). The same expression pattern of the two genes also occurred in response to Cu2+ and infection with Alternaria solani. ST-ACS5 expression increases very rapidly reaching a maximum earlier than ST-ACS4 transcripts, after which ST-ACS5 expression declines. ST-ACS4 expression increases at a slower rate and reaches its maximum after ST-ACS5. The sequential nature of expression argues that the two genes have different signal transduction and gene regulatory mechanisms.
authors.affiliation: Department of Horticulture, Pennsylvania State University, University Park 16802, USA.
authors.forename: C D
authors.initials: CD
authors.lastname: Schlagnhaufer
authors.forename: R N
authors.initials: RN
authors.lastname: Arteca
authors.forename: E J
authors.initials: EJ
authors.lastname: Pell
mesh_terms: D000595:Amino Acid Sequence; D003300:Copper / Q000494:pharmacology; D005030:Ethylenes / Q000096:biosynthesis; D015971:Gene Expression Regulation, Enzymologic / Q000187:drug effects; D018506:Gene Expression Regulation, Plant / Q000187:drug effects; D008190:Lyases / Q000096:biosynthesis / Q000235:genetics*; D008969:Molecular Sequence Data; D010126:Ozone / Q000494:pharmacology; D010935:Plant Diseases / Q000235:genetics / Q000382:microbiology; D018515:Plant Leaves / Q000201:enzymology* / Q000235:genetics / Q000378:metabolism; D011198:Solanum tuberosum / Q000201:enzymology* / Q000235:genetics / Q000378:metabolism
chemical_list: D005030:Ethylenes; D010126:Ozone; D003300:Copper; C036216:ethylene; D008190:Lyases; C021773:1-aminocyclopropanecarboxylate synthase