Skip to main content
Journal cover image

Seasonal variation in RuBPcase activity and N allocation in the chlorophyte seaweeds ulva curvata (kutz.) de toni and Codium decorticatum (Woodw.) Howe

Publication ,  Journal Article
Duke, CS; Litaker, RW; Ramus, J
Published in: Journal of Experimental Marine Biology and Ecology
1987

Seasonal variation in ribulosebisphosphate carboxylase (RuBPCase) activity and cellular N allocation in Ulva curvata (Kutz.) De Toni and Codium decorticatum (Woodw.) Howe was followed over two annual cycles. Because apparent seasonal variation may result from random sampling of a coherent pattern of shorter-term variation, estimating the magnitude of seasonal variation in seaweed N allocation requires sampling over a range of time scales. Such sampling reveals annual ranges of variation in N allocation to be greater than those measured at time scales of hours to days. RuBPCase activity in both U. curvata and C. decorticatum peaks in winter and summer, with fall and spring lows. Total N and C exhibit pronounced winter highs and summer lows in C. decorticatum, with less predictable variation in U. curvata. Growth is controlled by temperature in both species, while N uptake is only loosely coupled to temperature or light. Seasonal variations in N allocation are driven by interactive effects of N supply, temperature, and light on growth and N uptake. These effects are largely independent of morphological and genetic differences between species. © 1987.

Duke Scholars

Published In

Journal of Experimental Marine Biology and Ecology

ISSN

0022-0981

Publication Date

1987

Volume

112

Issue

2

Start / End Page

145 / 164

Related Subject Headings

  • Marine Biology & Hydrobiology
  • 07 Agricultural and Veterinary Sciences
  • 06 Biological Sciences
  • 05 Environmental Sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Duke, C. S., Litaker, R. W., & Ramus, J. (1987). Seasonal variation in RuBPcase activity and N allocation in the chlorophyte seaweeds ulva curvata (kutz.) de toni and Codium decorticatum (Woodw.) Howe. Journal of Experimental Marine Biology and Ecology, 112(2), 145–164.
Duke, C. S., R. W. Litaker, and J. Ramus. “Seasonal variation in RuBPcase activity and N allocation in the chlorophyte seaweeds ulva curvata (kutz.) de toni and Codium decorticatum (Woodw.) Howe.” Journal of Experimental Marine Biology and Ecology 112, no. 2 (1987): 145–64.
Duke CS, Litaker RW, Ramus J. Seasonal variation in RuBPcase activity and N allocation in the chlorophyte seaweeds ulva curvata (kutz.) de toni and Codium decorticatum (Woodw.) Howe. Journal of Experimental Marine Biology and Ecology. 1987;112(2):145–64.
Duke, C. S., et al. “Seasonal variation in RuBPcase activity and N allocation in the chlorophyte seaweeds ulva curvata (kutz.) de toni and Codium decorticatum (Woodw.) Howe.” Journal of Experimental Marine Biology and Ecology, vol. 112, no. 2, 1987, pp. 145–64.
Duke CS, Litaker RW, Ramus J. Seasonal variation in RuBPcase activity and N allocation in the chlorophyte seaweeds ulva curvata (kutz.) de toni and Codium decorticatum (Woodw.) Howe. Journal of Experimental Marine Biology and Ecology. 1987;112(2):145–164.
Journal cover image

Published In

Journal of Experimental Marine Biology and Ecology

ISSN

0022-0981

Publication Date

1987

Volume

112

Issue

2

Start / End Page

145 / 164

Related Subject Headings

  • Marine Biology & Hydrobiology
  • 07 Agricultural and Veterinary Sciences
  • 06 Biological Sciences
  • 05 Environmental Sciences