Acclimation to high CO/sub 2/ in bean

Journal Article · Wed Feb 01 04:00:00 EST 1984 · Plant Physiol.; (United States)

OSTI ID:6577746

Porter, M A; Grodzinski, B

Young bean plants (Phaseolus vulgaris L. cv Seafarer) grew faster in air enriched with CO/sub 2/ (1200 microliters per liter) than in ambient CO/sub 2/ (30 microliters per liter). However, by 7 days when increases in overall growth (dry weight, leaf area) were visible, there was a significant decline (about 25%) in the leaf mineral content (N, P, K, Ca, Mg) and a drop in the activity of two enzymes of carbon fixation, carbonic anhydrase and ribulose 1,5-bisphosphate (RuBP) carboxylase under high CO/sub 2/. Although the activity of neither enzyme was altered in young, expanding leaves during the acclimation period, in mature leaves the activity of carbonic anhydrase was reduced 95% compared with a decline of 50% in the ambient atmosphere. While CO/sub 2/ enrichment might alter the flow of carbon into the glycolate pathway by modifying the activities of carbonic anhydrase or RuBP carboxylase, there is no early change in the ability of photosynthetic tissue to oxidize glycolate to CO/sub 2/.

• Research Organization: University of Guelph, Ontario
• OSTI ID: 6577746
• Journal Information: Plant Physiol.; (United States), Journal Name: Plant Physiol.; (United States) Vol. 74:2; ISSN PLPHA
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALCOHOLS
ALKALI METALS
ALKALINE EARTH METALS
BIOLOGICAL ADAPTATION
BIOLOGICAL EFFECTS
CALCIUM
CARBOHYDRATES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBON-OXYGEN LYASES
CARBONIC ANHYDRASE
CARBOXYLASE
CHALCOGENIDES
ELEMENTS
ENZYME ACTIVITY
ENZYMES
GLYCOLS
GROWTH
HYDRO-LYASES
HYDROXY COMPOUNDS
KETONES
LEAVES
LEGUMINOSAE
LIGASES
LYASES
MAGNESIUM
METALS
MONOSACCHARIDES
NITROGEN
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXIDOREDUCTASES
OXYGEN COMPOUNDS
PENTOSES
PHASEOLUS
PHOSPHATES
PHOSPHORUS
PHOSPHORUS COMPOUNDS
PLANT GROWTH
PLANTS
POTASSIUM
RIBULOSE
SACCHARIDES