Detection and quantification of changes in membrane-associated calcium in red spruce saplings exposed to acid fog
Jiang M and Jagels R. 1999. Detection and quantification of changes in membrane-associated calcium in red spruce saplings exposed to acid fog. Tree Physiology. 19:909-916
At Isle au Haut, 4 trees 15-20 years old, were selected and needles from the upper crown were collected in mid-August 1997. Current and 1-year-old needles were tested by the CTC staining and fluorescence microscopy procedures. Based on studies of saplings in the lab exposed to acid fog, '...mean mCa concentrations were significantly less in needles exposed to acid fog than in needles exposed to distilled-water fog or in untreated needles.' 'Consistent with the chamber studies, field data obtained from red spruce trees at two sites in Maine showed that low mCa concentrations in needles were associated with exposure to acid fog.' /STUDY LOCATIONS:/ /ISLE AU HAUT/
- Type
- Journal Article
- Authors
- Jiang, Mei; Jagels, R.
- Units
- ACAD
- Keywords
- acid fog, Air Quality, Isle Au Haut, NOx, Ozone (O3), pH, Water Quality