The effect of Air pollution on the ultrastructure of the developing and Current year needles of Norway Spruce

Wien

1981

S. 159-164

2 Abb., 9 Lit. Ang.

Unselbständiges Werk

200004831

The ultrastructure of mesophyll cells of developing and current year green spruce needles was studied in the environments of two factories in Finland. The one is a fertilizer factory, emitting mainly S02. Three types of injuries were found. The swelling of thylakoids seen mainly in S- and F-polluted area is thought to be caused, partly at least, by fluorides. The reduction of grana seen in both polluted areas and the lightening of plastoglobuli with appearance of lipid-like material in cytoplasm, seen mainly in S-polluted area, are thought to be caused by sulphur. The trees studied were in moderate condition and the needles taken for study were always green. The method and material are thought to be suitable for diagnostic purposes in controlling ais pollutants.