Identification of a marine Chlorella sp. by electron microscopy.
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概要
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Marine Chlorella was originally isolated from Yashima Bay in Seto Inland Sea of Japan by H. HIRATA. We observed ultrastructural features in this Chlorella to define taxonomical position of this species by both scanning and transmission electron microscope. The cell of this marine Chlorella (3-6μm) appears to be either round or oval. The saucer-shaped chloroplast occupies about half of the cell volume.A thylakoid penetrates a large sheath-like and homogeneous pyrenoid. The pyrenoid appears to be surrounded by a starch sheath. In the cytoplasm, two mitochondrial profiles are visible adjacent to the chloroplast and each one locates at opposite poles of the cell. The cell nucleus is rather voluminous and usually locates near the cell wall. A Golgi apparatus, usually composed of two adjoining dictyosomes is often visible near the nucleus. The cell wall has small protuberances on its outer surface. In comparisions among known marine Chlorella we consider it a new species in a marine Chlorella and name it Chlorella hirataii.
- 日本水産増殖学会の論文
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