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http://dx.doi.org/10.4490/ALGAE.2006.21.2.193

Biology of Porphyra pulchella sp. nov. from Australia and New Zealand  

Ackland, Jillian C. (School of Botany, University of Melbourne)
West, John A. (School of Botany, University of Melbourne)
Scott, Joseph (Department of Biology, PO Box 8795, College of William and Mary)
Zuccarello, Giuseppe C. (School of Biological Sciences, Victoria University of Wellington)
Broom, Judy (Department of Biochemistry, University of Otago)
Publication Information
ALGAE / v.21, no.2, 2006 , pp. 193-208 More about this Journal
Abstract
Porphyra pulchella sp. nov. Ackland, West, Scott and Zuccarello was obtained at Mimosa Rock National Park, New South Wales; Westgate Bridge, Victoria, Australia; and Waihau Bay, North Island, New Zealand. It occurs mainly in mangrove habitats and is very small (± 1 mm) in field collections. In laboratory culture at 21 ± 2°C tiny blades (0.5-3.0 mm) reproduced exclusively by archeospores liberated from vegetative cells of the upper sector of the blades. The archeospores displayed amoeboid and gliding motility once discharged. At 14 ± 2°C the blades grew to 25 mm and produced longitudinal spermatangial streaks mixed with ‘phyllosporangial’ streaks. The discharged ‘phyllospores’ showed amoeboid motility and germinated forming asexual blades. A conchocelis phase with typical bangiophycidean pit connections was observed in blade cultures after 8-10 weeks at 14 ± 2°C. Conchocelis filaments produced conchosporangia and these released amoeboid conchospores that developed into archeosporangiate blades. Molecular data indicate that all 3 isolates are genetically identical.
Keywords
Australia; molecular phylogeny; New Zealand; Porphyra pulchella sp. nov. SSU rDNA; TEM;
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