Isolation of cyclic adenosine 3':5'-monophosphate (cAMP) from lakes of differing trophic status: Correlation with planktonic metabolic variables
Journal Article
·
· Limnol. Oceanogr.; (United States)
The seasonal dynamics of particulate and dissolved cyclic adenosine 3':5'-monophosphate (cAMP) were examined in the epilimnia and littoral zones of two trophically dissimilar lakes. Each cAMP fraction was found in quantities comparable to those reported for cultured phytoplankton species. Both cAMP fractions varied greatly in concentration during the season and between the oligotrophic and hypereutrophic lakes. Increases in phytoplankton community densities were paralleled by weight-specific changes in particulate cAMP levels, depending on the phytoplankton species present. A linear relationship between cellular cAMP levels and in situ primary productivity rates was found in the oligotrophic lake. In both lakes, certain phytoplanktonic associations had particulate cAMP levels linearly related to chlorophyll a content and specific activity of alkaline phosphatase.
- Research Organization:
- Michigan State Univ., Hickory Corners
- OSTI ID:
- 6220032
- Journal Information:
- Limnol. Oceanogr.; (United States), Journal Name: Limnol. Oceanogr.; (United States) Vol. 27:1; ISSN LIOCA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Investigation on the occurrence and significance of cyclic adenosine 3':5'-monophosphate in phytoplankton and natural aquatic communities
Investigation on the occurrence and significance of cyclic adenosine 3':5'-monophosphate in phytoplankton and natural aquatic communities
Diatoms in lakes and lake sediments as an index to environment. Final report, Part 2. A study of phytoplankton distribution, lake classification, and trophic indicators in Minnesota lakes
Technical Report
·
Mon Dec 31 23:00:00 EST 1979
·
OSTI ID:5213696
Investigation on the occurrence and significance of cyclic adenosine 3':5'-monophosphate in phytoplankton and natural aquatic communities
Technical Report
·
Mon Dec 31 23:00:00 EST 1979
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OSTI ID:5213682
Diatoms in lakes and lake sediments as an index to environment. Final report, Part 2. A study of phytoplankton distribution, lake classification, and trophic indicators in Minnesota lakes
Technical Report
·
Fri Dec 31 23:00:00 EST 1971
·
OSTI ID:4337228
Related Subjects
520100* -- Environment
Aquatic-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
ALKALINE PHOSPHATASE
AMP
AQUATIC ORGANISMS
BIOCHEMICAL REACTION KINETICS
CARBOXYLIC ACIDS
CHEMISTRY
CHLOROPHYLL
DATA
ENZYMES
ESTERASES
EXPERIMENTAL DATA
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
HYDROLASES
INFORMATION
KINETICS
LAKES
LIMNOLOGY
METABOLISM
NUCLEOTIDES
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PARTICLES
PARTICULATES
PHOSPHATASES
PHYTOCHROMES
PHYTOPLANKTON
PIGMENTS
PLANKTON
POPULATION DENSITY
PORPHYRINS
REACTION KINETICS
SEASONAL VARIATIONS
SURFACE WATERS
VARIATIONS
WATER CHEMISTRY
Aquatic-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
ALKALINE PHOSPHATASE
AMP
AQUATIC ORGANISMS
BIOCHEMICAL REACTION KINETICS
CARBOXYLIC ACIDS
CHEMISTRY
CHLOROPHYLL
DATA
ENZYMES
ESTERASES
EXPERIMENTAL DATA
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
HYDROLASES
INFORMATION
KINETICS
LAKES
LIMNOLOGY
METABOLISM
NUCLEOTIDES
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PARTICLES
PARTICULATES
PHOSPHATASES
PHYTOCHROMES
PHYTOPLANKTON
PIGMENTS
PLANKTON
POPULATION DENSITY
PORPHYRINS
REACTION KINETICS
SEASONAL VARIATIONS
SURFACE WATERS
VARIATIONS
WATER CHEMISTRY