Growth and Morphology of Enteromorpha linza (L.) J. Ag. and E. prolifera (Muller) J. Ag. (Ulvales, Chlorophyceae)

Algae > Volume 6(1); 1991 > Article

Algae 1991;6(1): 31-45.

Kwang Young Kim, Young Sheen Ahn, In Kyu Lee

Department of Biology, Seoul National University

ABSTRACT

The phenology and morphological variation of Enteromorpha linza and E. prolifera in relation with environmental factors were investigated. The field observations were conducted monthly from August 1984 to September 1985 at two sites of Anin, in the eastern coast of Korea. The effects of selected environmental factors on germling growth and early morphogenesis were examined in laboratory culture. As results, the phenology of the two species was affected mainly by the water temperature, exhibiting a difference between the populations in the exposed site and the sheltered site to wave action. The variation of morphological and anatomical characters due to different habitats was observed. According to culture study, the arrangement and the shape of cells as well as the number of chloroplast and pyrenoid were similar to those of field samples, but the cell size became larger. The both species could survive in a wide range of irradiance, temperature and salinity. This agreed with the results of field observation.

Key words: phenology, morphological variation, Enteromorpha linza, E. prolifera, environmental factors, growth, morphogenesis, wave action