Growth, photosynthesis and agar in wild-type strains of Gracilaria verrucosa and G. conferta (Gracilariales, Rhodophyta), as a strain selection experiment

I. Levy*, S. Beer, M. Friedlander

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The local species Gracilaria conferta and the foreign G. verrucosa were grown together under a wide range of photon flux density and temperature conditions. Gracilaria verrucosa showed a higher growth rate, especially under low temperatures, and higher photosynthetic performances as well as higher ribulose-1,5-bisphosphate carboxylase activity as compared with G. conferta. Gracilaria verrucosa also showed a better quality and yield of agar, suggesting that this species could be more suitable than G. conferta for outdoor cultivation in Israel and may improve winter growth in ponds. Growth rate and agar quality (gel strength) were rated as the most suitable characteristics influencing the preference of strains for outdoor cultivation.

Original languageEnglish
Pages (from-to)381-387
Number of pages7
JournalHydrobiologia
Volume204-205
Issue number1
DOIs
StatePublished - Sep 1990

Keywords

  • Gracilaria
  • RuBPcase
  • growth
  • light
  • photosynthesis
  • temperature

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