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

Journal Article · Wed Sep 01 04:00:00 EDT 1982 · For. Sci.; (United States)

OSTI ID:5857295

Eckert, R T ^[1]; Houston, D B

---

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), Journal Name: For. Sci.; (United States) Vol. 28:3; ISSN FOSCA
• Country of Publication: United States
• Language: English

Related Subjects

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