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Ozone effects on the fatty acid composition of loblolly pine needles ( Pinus taeda L.)
Author(s) -
FANGMEIER A.,
KRESS L. W.,
LEPPER P.,
HECK W. W.
Publication year - 1990
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1990.tb00496.x
Subject(s) - loblolly pine , ozone , pinus <genus> , fatty acid , fumigation , chemistry , botany , horticulture , composition (language) , food science , biology , biochemistry , organic chemistry , linguistics , philosophy
summary Loblolly pine trees were fumigated with ozone in open‐top chambers and the fatty acid content of the needles was analysed. Fatty‐acid composition depended on needle age. Ozone effects also differed with needle age. In needles treated during the needle elongation period, ozone fumigation decreased the C 18:3 and increased the C 18:2 and C 18:1 content. In needles already elongated before ozone treatment was initiated, fatty acid content decreased. The results suggest different pathways of ozone attack in elongated and elongating needles. No differences in response to ozone were found for fatty acids in needles of four different half sib families.