Effects of ozone and acidic deposition on carbon allocation and mycorrhizal colonization of Pinus taeda L. seedlings

Journal Article · Fri Mar 01 04:00:00 EST 1991 · Forest Science; (United States)

OSTI ID:5529995

Adams, M B; O'Neal, E G

Patterns of carbon allocation and mycorrhizal colonization were examined in loblolly pine seedlings from two half-sib families exposed to three ozone treatments (charcoal-filtered air, ambient air + 80 ppb O{sub 3}, and ambient air + 160 ppb O{sub 3}) and three rain pH levels (5.2, 4.5, and 3.3) for 12 weeks in open-topped chambers in a field setting. No statistically significant effects of ozone or rain pH were detected on biomass, root:shoot ratios, or carbon allocation; some consistent patterns were observed, however. Coarse root starch concentrations and mycorrhizal infection varied significantly with ozone levels. No significant interactions of ozone, rain pH, or genotype were detected.

• OSTI ID: 5529995
• Journal Information: Forest Science; (United States), Journal Name: Forest Science; (United States) Vol. 37:1; ISSN FOSCA; ISSN 0015-749X
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACID RAIN
AIR POLLUTION
ATMOSPHERIC PRECIPITATIONS
BACTERIA
BIOLOGICAL EFFECTS
CARBOHYDRATES
CHEMICAL REACTIONS
CONIFERS
INFECTIVITY
MICROORGANISMS
ORGANIC COMPOUNDS
OZONE
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PHYSIOLOGY
PINES
PINOPHYTA
PLANTS
POLLUTION
POLYSACCHARIDES
RAIN
REAGENTS
RHIZOBIUM
ROOTS
SACCHARIDES
STARCH
SYNTHESIS
TREES