title: Changes in respiration, photosynthesis and protein composition during induced synchronous formation of gametes and zoospores in Ulva mutabilis Føyn.
abstract: In the marine green alga Ulva mutabilis Føyn, large daily fluctuations in respiratory and photosynthetic rates are found after the induction of synchronous formation of gametes and zoospores. A sharp reduction in photosynthetic capacity preceeds the zooid-forming cell divisions. During the same period, samples for polyacrylamide electrophoresis show an initial increase followed by a decrease in the amount of ribulose-1,5-bisphosphate carboxylase. Some other transient protein changes were also noted. A new protein band with MW 51,400 appears in the 48-h sample and becomes a prominent constituent of gametes and zoospores; it may represent tubulin.
authors.affiliation: Zoological Institute, University of Oslo, Blindern, P.O. Box 1050, Oslo 3, Norway.
authors.forename: O M
authors.initials: OM
authors.lastname: Gulliksen
authors.forename: O T
authors.initials: OT
authors.lastname: Hushovd
authors.forename: I
authors.initials: I
authors.lastname: Texmon
authors.forename: O
authors.initials: O
authors.lastname: Nordby