Carbonic anhydrase levels and internal lacunar CO/sub 2/ concentrations in aquatic macrophytes

Technical Report · Mon Jan 01 04:00:00 EST 1979

DOI:https://doi.org/10.2172/6058066· OSTI ID:6058066

Weaver, C I

Carbonic anhydrase levels were examined in a variety of aquatic macrophytes from different habitats. In general, carbonic anhydrase levels increased across the habitat gradient such that activities were low in submersed aquatic macrophytes and high in emergent macrophytes with floating-leaved and free-floating plants exhibiting intermediate activities. Internal lacunar CO/sub 2/ concentrations were analyzed in relation to carbonic anhydrase activities. There was no correlation between these two parameters. Internal CO/sub 2/ concentrations ranged from low to high in submersed macrophytes, but were low in floating-leaved and emergent macrophytes. The observed internal CO/sub 2/ concentrations are discussed in relation to the individual morphologies of the plants and the environments in which they occurred.

• Research Organization: Michigan State Univ., East Lansing (USA). Dept. of Botany and Plant Pathology
• DOE Contract Number: EY-76-S-02-1599
• OSTI ID: 6058066
• Report Number(s): COO-1599-153(Pt.4)
• Country of Publication: United States
• Language: English

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520100 -- Environment
Aquatic-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
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59 BASIC BIOLOGICAL SCIENCES
AQUATIC ORGANISMS
BIOMASS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONIC ANHYDRASE
CHALCOGENIDES
COMPARATIVE EVALUATIONS
CORRELATIONS
DATA
DATA FORMS
ENERGY SOURCES
ENZYMES
EXPERIMENTAL DATA
GREAT LAKES REGION
INFORMATION
ISOLATED VALUES
LAKES
LYASES
MICHIGAN
NORTH AMERICA
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PLANTS
POPULATION DYNAMICS
QUANTITY RATIO
RENEWABLE ENERGY SOURCES
SEASONAL VARIATIONS
SURFACE WATERS
USA
VARIATIONS