Foliar peroxidase and acid phosphatase activity response to low level SO/sub 2/ exposure in eastern white pine clones

Journal Article · Wed Sep 01 00:00:00 EDT 1982 · For. Sci.; (United States)

OSTI ID:5857295

Eckert, R T ^[1]; Houston, D B

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1. Univ. of New Hampshire, Durham

Tolerant and sensitive clones of eastern white pine were fumigated for 2 hr with 150 ..mu..g m/sup -3/ (5 pphm) SO/sub 2/. Peroxidase (PER) and acid phosphate (AP) activity was measured in extracts from foliage collected immediately prior to fumigation, and at 0, 2, 4, and 24 hr following fumigation. Extracts from sensitive clones exhibited greater PER activity than tolerant clones. Fumigation did not significantly increase PER activity in either class. Tolerant and sensitive controls did not differ in AP activity. Foliar PER activity may hold promise for screening individuals in tree improvement programs.

• OSTI ID: 5857295
• Journal Information: For. Sci.; (United States), Vol. 28:3
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
BIOLOGICAL EFFECTS
PINES
SENSITIVITY
ACID PHOSPHATASE
FORECASTING
LEAVES
PEROXIDASES
PHYSIOLOGY
SULFUR DIOXIDE
CARBOXYLIC ACIDS
CHALCOGENIDES
CONIFERS
ENZYMES
ESTERASES
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
HYDROLASES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXIDOREDUCTASES
OXYGEN COMPOUNDS
PHOSPHATASES
PLANTS
POLLUTION
PORPHYRINS
SULFUR COMPOUNDS
SULFUR OXIDES
TREES
500100* - Environment
Atmospheric- Basic Studies- (-1989)
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)