Culture studies of porphyra dentata and P. pseudolinearis (bangiales, rhodophyta), two dioecious species from Korea

Kim, Nam-Gil

The life cycle of two dioecious species, Porphyra dentata and P. pseudolinearis, from Korea was completed in the laboratory. Conchocelis filaments were cultured at temperatures of 5-30 deg. C with a photonirradiance of 10-80 Mumol m-2 s-1under a photoperiod of 14L:10D. In both species, the fastest growth of the conchocelis was observed at 20 deg. C and 40 Mumol m-2 s-1, and conchosporangial branches were produced at 10-25 deg. C and 10-80 Mumol m-2 s-1. Foliose thalli of both species were cultured at 5-30 deg. C, an irradiance of 40 Mumol m-2 s-1 and a photoperiod of 10L:14D. The best growth of P. dentata and P. pseudolinearis was at 10-15 deg. C and 5 deg. C, respectively. Archeospores were not formed on either, under any culture condition. Zygotospores of both species were released at 15 deg. C. They germinated to form t he filamentous conchocelis. Neither monospores nor protothalli were produced by the conchocelis of eitherspecies in culture. For both species, growth and maturation of the two phases were influenced more by temperature than by irradiance.

KOREA; RED algae; BIOGRAPHIES; LIMNOLOGY; MARINE biology

Hydrobiologia, 1999, Vol 398/399, p127

0018-8158

Academic Journal

10.1023/A:1017038129677