title: Ozone-induced free polyamine response in scots pine in northern Finland.
abstract: The study aimed to assess the ozone-induced response in Scots pine (Pinus sylvestris L.) needles by measuring free polyamine concentrations. An open-top chamber experiment with realistically elevated ozone concentrations was carried out in northern Finland. A carry-over effect was detected: the concentrations of free polyamines, especially putrescine, were decreased at the beginning of the next growing season in the ozone-exposed trees. This indicates that the free polyamine pathway was not activated by ozone stress in Scots pines in northern conditions.
authors.affiliation: Department of Biology, University of Oulu, Finland.
authors.forename: Marjaana
authors.initials: M
authors.lastname: Suorsa
authors.forename: Anne
authors.initials: A
authors.lastname: Jokela
authors.forename: Tytti
authors.initials: T
authors.lastname: Sarjala
authors.forename: Sirkku
authors.initials: S
authors.lastname: Manninen
authors.forename: Satu
authors.initials: S
authors.lastname: Huttunen
mesh_terms: D000393:Air Pollutants / Q000494:pharmacology*; D001273:Atmosphere Exposure Chambers; D005387:Finland; D010083:Oxidants, Photochemical / Q000494:pharmacology*; D010126:Ozone / Q000494:pharmacology*; D028223:Pinus / Q000187:drug effects* / Q000378:metabolism; D011073:Polyamines / Q000378:metabolism; D011700:Putrescine / Q000378:metabolism
chemical_list: D000393:Air Pollutants; D010083:Oxidants, Photochemical; D011073:Polyamines; D010126:Ozone; D011700:Putrescine