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Effect of sulphur dioxide on the partitioning of assimilates in Scots pine (Pinus sylvestris L.) seedlings of different susceptibility to this gas 1
Author(s) -
LorencPlucinska Gabriela
Publication year - 1986
Publication title -
european journal of forest pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.535
H-Index - 49
eISSN - 1439-0329
pISSN - 0300-1237
DOI - 10.1111/j.1439-0329.1986.tb00191.x
Subject(s) - scots pine , chemistry , pinus <genus> , fumigation , botany , horticulture , carbon dioxide , chromosomal translocation , biology , biochemistry , organic chemistry , gene
The influence of various SO 2 concentrations was investigated on the process of metabolites transport, particularly on the translocation of total and free sugars in SO 2 ‐sensitive and SO 2 ‐tolerant seedlings of Scots pine. It was observed that regardless of the SO 2 concentration used and the duration of time since the termination of fumigation the transport of 14 C‐products underwent stronger disturbances due to the action of SO 2 than 14 CO 2 uptake. Inhibition of the transport of 14 C‐sugars led to a decrease in the quantity of sugars supplied from the needles to the roots but it did not affect the qualitative composition of the transported sugars. These disturbances were greater in the SO 2 ‐sensitive seedlings than in the tolerant ones.