The effect of temperature on growth and reproduction of Scytosiphon complanatus (Fucophyceae) from Greenland

Scytosiphon complanatus from Greenland was grown under long‐day conditions on a temperature‐gradient device with a temperature range from 5.4°C to 31.8°C. Growth was optimal between 16.0°C and 20.9°C. In a four week experimental period at 5.4°C and 7.5°C growth was slow and not measurable. The inocu...

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Bibliographic Details
Published in:Nordic Journal of Botany
Main Authors: Pedersen, Poul Møller, Kristiansen, Aase, Moseholm, Lars
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1987
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Online Access:http://dx.doi.org/10.1111/j.1756-1051.1987.tb02040.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1756-1051.1987.tb02040.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1756-1051.1987.tb02040.x
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Summary:Scytosiphon complanatus from Greenland was grown under long‐day conditions on a temperature‐gradient device with a temperature range from 5.4°C to 31.8°C. Growth was optimal between 16.0°C and 20.9°C. In a four week experimental period at 5.4°C and 7.5°C growth was slow and not measurable. The inoculated germlings died at temperatures between 24.0°C and 27.5°C. Under all temperatures the prostrate systems, knot filaments or ralfsioid thalli, as well as the parenchymatous macrothalli remained sterile during the experimental period. Prolongation of the growth period showed that formation of swarmers was prevented at temperatures above 18.6°C. The geographic distribution is discussed in relation to these results.