Problems of structure and biology in a large collared flagellate ( Diaphanoeca grandis Ellis) from arctic seas

The Royal Society - Tập 213 Số 1190 - Trang 15-26 - 1981
Irene Manton1, G. B. Bremer2, K. Oates3
1Leeds University, Leeds LS2 9JT, U. K.
2Department of Biological Sciences, Portsmouth Polytechnic, Portsmouth PO1 2DY, U. K.
3Department of Biology, University of Lancaster, Lancaster LA1 4YQ, U. K.

Tóm tắt

On the basis of wild material processed into dry who mounts immediately following collection in two arctic localities (Hudson Bay and under sea ice in North Alaska), new insight has been obtained into lorica structure and development in Diaphanoeca grandis (Choanoflagellata) by means of scanning electron microscopy supplementing transmission electron microscopy and light microscopy. The more important new findings include demonstration of tectiform replication and of the two-layered nature of the lorica wall, the outer layer being limited throughout to longitudinal costae only. Details of transverse costae and of the fibrillar or membranous components involved in suspension of the protoplast are also described and illustrated. Outstanding problems, notably those involved in nutrient uptake, are discussed and the nature of the observations most needed to resolve them indicated. A revised description of the species replaces a summary.

Từ khóa


Tài liệu tham khảo

Boucaud-Camou E., 1967, Les choanoflagelles des cotes de la Manche. I. Systematique. Bull Soc. linn, Normandie, 10, 191

Buck K 1980 Morphology and distribution of the Acanthoecidae (Choanoflagellata) from the Weddell Sea during the austral summer 1977. CRREL Rep. no. 80-16. United States Army.

Ellis W. N., 1929, 1930 Recent researches on Choanoflagellata (Craspedomonadines) (freshwater and marine) with descriptions of new genera and species. Annls Soc. r. zool, Belg., 60, 49

10.1111/j.1550-7408.1970.tb02358.x

10.1017/S0025315400018580

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Thông tin xuất bản

The Royal Society

Tập 213 Số 1190

15-26

Thông tin tác giả