Bibliographic Detail

Nygaard, G., Komárek, J., Kristiansen, J. & Skulberg, O.M., 1987 '1986'

Reference:
Nygaard, G., Komárek, J., Kristiansen, J. & Skulberg, O.M. (1987 '1986'). Taxonomic designations of the bioassay alga NIVA-CHL 1 ("Selenastrum capricornum") and some related strains. Opera Botanica 90: 1-46, 35 figs, 9 tables.

Publication Date:
1987

Abstract:
An outline is given of the application, physiological characteristics and pigmentation of NIVA-CHL1, named "Selenastrum capricornutum". This strain and clonal isolates of 12 related algae from Norway, Denmark, Holland and Kenya were grown as non-axenic batch cultures. Shape and dimensions of the cells were studied on the basis of LM-photomicrographs , combined with EM-micrographs and with observations on living cells. The mother cell wall breaks in different ways before the four or eight autospores are released; the individual opening pattern is of significant taxonomic value. EM-micrographs disclosed a rugose wall of the NIVA-CHL1 cells and a well defined specific ultrastructure on the cell apices of some of the other strains. Four quantitative characters showed large variations and overlap, especially the curvature values, while the diameter/breadth ratio and the sinus/cell ratio seemed to be of some taxonomic value. Nine strains were referred to the genus Raphidocelis: NIVA-CHL1 has been designated R. subcapitata and the following three species have been described as new: R. van-goori (+ var. decussata), R. inclinata (+ var. serialis) and R. valida. Three of the strains have been referred to Monoraphidium, one of them as M. lunare n.sp. One strain was described as Nephrochlamys rostrata n.sp. - Out of print. Only few copies available.