Skip to main content
  • Original Article
  • Published:

Effect of temperature and photon fluence rate on gametophytes and young sporophytes of Laminaria ochroleuca Pylaie

Abstract.

We analysed the effects of temperature and photon fluence rate on meiospore germination, growth and fertility of gametophytes, and growth of young sporophytes of Laminaria ochroleuca. Maximum percentages of germination (91–98%) were obtained at 15°C and 18°C, independent of photon fluence rate. Optimal development of female gametophyte and maximum fecundity and reproductive success of gametophytes occurred at 15°C and 18°C and at 20 and 40 µmol m–2 s–1. Maximum relative growth rate of young sporophytes after 2 weeks of culture was achieved under the same conditions. L. ochroleuca gametophytes cannot reproduce and growth of its sporophytes is not competitive at temperatures close to 10°C.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Isabel M. Pérez-Ruzafa.

Additional information

Electronic Publication

Rights and permissions

Reprints and permissions

About this article

Cite this article

Izquierdo, J., Pérez-Ruzafa, I.M. & Gallardo, T. Effect of temperature and photon fluence rate on gametophytes and young sporophytes of Laminaria ochroleuca Pylaie. Helgol Mar Res 55, 285–292 (2002). https://doi.org/10.1007/s10152-001-0087-6

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10152-001-0087-6