New Zealand Journal of Botany abstracts

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Fine structure of Crucigenia truncata G. M. Smith from Lake Pearson, Canterbury, New Zealand

Elizabeth A. Flint

33 Poynder Avenue, Christchurch 1, New Zealand

Suzanne Bullock

118 Kendal Avenue, Christchurch 5, New Zealand

Abstract Under the light microscope, chloroplasts of the Chlorococcalean freshwater alga Crucigenia truncata were yellow-green and apparently without pyrenoids, but in culture they were grass-green and pyrenoids were conspicuous. Under the transmission electron microscope, pyrenoids snd starch plates were seen in wild cells, chloroplasts were smaller and cell walls were wider than in cultured cells. It is suggested that pyrenoids are always present in species of Crucigenia, but sometimes they are not seen under the light microscope. This might account for discrepancies in earlier observations of pyrenoids in Crucigenia.

Received 22 March 1976
New Zealand Journal of Botany, 1976, Vol. 14: 261-70.

PDF file of entire paper: medium quality (3885K); (scanned from paper original: notes about this process)

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