异形藻属一新种——扁球异形藻及其生活史的研究

俞敏娟, 魏印心, 理查德·斯塔

Yu Min-Juan, Wei Yin-Xin, Richard Starr

Received:1900-01-01 Revised:1900-01-01 Online:1991-07-10 Published:1991-07-10
Contact: Yu Min-Juan

摘要：

本文报道了团藻目、壳衣藻科、异形藻属一新种——扁球异形藻。此种从非洲的土壤标本中分离

获得。营养细胞(囊壳、原生质体)与已知的其它8个种有明显的不同。生活史的培养观察发现有性生

殖为异配，这是此属未曾被描述的一个特征。

关键词: 扁球异形藻, 有性生殖, 同宗配合, 异形配子

Abstract:

This paper deals with the morphology and life cycle of a new species of

Dysmorphococcus oblatus Yu et Wei (Phacotaceae, Volvocales) from Africa. The alga seems

to be morphologically rather distinct from the other members (lorica, protoplast and number

of pyrenoid). Moreover, a comparison is made of overall morphological and reproductive

characteristics of the present taxon with the other 8 known species of this genus. The cultural

experiment of the life cycle of this alga reveals certain attributes unrecorded for early des-

cribed species of this genus. The alga is homothallic, and heterogametic and sexual reproduc-

tion produces 32-64 male gametes and 2 female gametes.

Key words: Dysmorphococcus oblatus, Sexual reproduction, Homothallism, Heterogamete

俞敏娟, 魏印心, 理查德·斯塔. 异形藻属一新种——扁球异形藻及其生活史的研究[J]. 中国科学院大学学报.

Yu Min-Juan, Wei Yin-Xin, Richard Starr. A New Species of Dysmorphococcus (Phacotaceae, Volvocales) and Its Life Cycle[J]. .

[1]	刘林德, 王仲礼, 田国伟, 申家恒. 刺五加的有性生殖与营养繁殖[J]. 中国科学院大学学报, 1997, 35(1): 7-13.
[2]	汤仲埙, 陈祖铿, 王伏雄. 香榧有性生殖周期的研究[J]. 中国科学院大学学报, 1986, 24(6): 447-453.

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