Bibliographic Detail
Leliaert, F., Payo, D.A., Calumpong, H.P. & De Clerck, O. , 2011
Reference:
Leliaert, F., Payo, D.A., Calumpong, H.P. & De Clerck, O. (2011). Chaetomorpha philippinensis (Cladophorales, Chlorophyta), a new marine microfilamentous green alga from tropical waters. Phycologia 50(4): 384-391.
Publication Date:
2011
Abstract:
A new marine microfilamentous green alga, Chaetomorpha philippinensis Leliaert sp. nov., is described as an epiphyte on
Chaetomorpha vieillardii from shallow subtidal habitats in the Philippines. Phylogenetic analyses of large subunit rDNA
and rDNA internal transcribed spacer (ITS) sequences show that the new tropical species is sister to the cold-water
Chaetomorpha norvegica, from which it is genetically clearly distinct but morphologically almost indistinguishable.
Chaetomorpha philippinensis is characterized by minute, straight or curved, unbranched, erect filaments up to 300 mm
long and 717 mm in diameter, attached by a basal, hapteroid holdfast. Filaments in culture are similar in morphology
but grow considerably longer with slightly larger cells. The cylindrical cells are multinucleate with up to eight nuclei (up
to 18 in culture). Cells contain a single, parietal, lobed chloroplast with numerous small perforations and one to several
pyrenoids. Zoosporangia develop by transformation of apical and subapical cells with zoids emerging through a domed
pore in the apical, middle or basal part of the cell.
