Effects of light and temperature on photosynthesis of the nuisance alga Cladophora glomerata (L.) Kutz from Green Bay, Lake Michigan

Effects of light and temperature on photosynthesis of the nuisance alga Cladophora glomerata (L.) Kutz from Green Bay, Lake Michigan

Seasonal measurements of light- and temperature-dependence of photosynthesis of the nuisance alga Cladophora glomerata (L.) Kutz were determined under laboratory conditions with algal samples collected from lower Green Bay, Lake Michigan. Photosynthesis rates were determined using oxygen difference...

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Bibliographic Details
Published in:The New phytologist Vol. 109; no. 1; pp. 53 - 58
Main Authors: Lester, W.W, Adams, M.S, Farmer, A.M
Format: Journal Article
Language:English
Published: Oxford, UK Cambridge University Press 01-05-1988
Blackwell Publishing Ltd
Blackwell
Subjects:
ALGAE
ALGUE
Animal and plant ecology
Animal, plant and microbial ecology
AQUATIC WEEDS
Autoecology
Biological and medical sciences
Cladophora
FOTOSINTESIS
Fundamental and applied biological sciences. Psychology
Great Lakes
Growing seasons
High temperature
LAC
LAGOS
LAKES
LIGHT
LUMIERE
LUZ
MALEZAS ACUATICAS
MAUVAISE HERBE AQUATIQUE
Oxygen
Photons
PHOTOSYNTHESE
PHOTOSYNTHESIS
Plants
Plants and fungi
Sustainable agriculture
TEMPERATURA
TEMPERATURE
Water temperature
WISCONSIN
Light effect
United States
Algae
Chlorophycophyta
Temperature effect
North America
Freshwater environment
Photorespiration
Phenology
Seasonal variation
America
Lakes
Photosynthesis
Respiration
Wisconsin
Thallophyta
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Summary:Seasonal measurements of light- and temperature-dependence of photosynthesis of the nuisance alga Cladophora glomerata (L.) Kutz were determined under laboratory conditions with algal samples collected from lower Green Bay, Lake Michigan. Photosynthesis rates were determined using oxygen difference in water circulated around the speciments. Photosynthesis reached light saturation at about 790 μ mol photons m-2s-1(PAR) and had a temperature optimum between 28 and 31⚬C; maximum rates were 25-50 mg O2g dwt-1h-1. These parameters varied seasonally with water temperatures. There was no evidence for a decline in photosynthetic rate with increasing temperature over the ranges used in this study. It is concluded that, in this instance, such an effect is not responsible for the mid-season decline of this species. Other effects, such as those of respiration, photorespiration and phenology may, therefore, be important.
Bibliography:M40
8852250
University of California Extension, P.O. Box 520, El Portal, California 95318, USA.
ISSN:0028-646X
1469-8137
DOI:10.1111/j.1469-8137.1988.tb00218.x