GAMETOGENESIS IN THE MONOTHALAMOUS AGGLUTINATED FORAMINIFER CRIBROTHALAMMINA-ALBA

被引：15

作者：

GOLDSTEIN, ST ^{[1
]}

BARKER, WW ^{[1
]}

机构：

[1] ROY F WESTON INC, AUBURN, AL 36830 USA

来源：

JOURNAL OF PROTOZOOLOGY | 1990年 / 37卷 / 01期

关键词：

Foraminiferida (benthic); gametogenesis;

D O I：

10.1111/j.1550-7408.1990.tb01108.x

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Gametogenesis in the foraminifer Cribrothalammina alba involves changes in both the gamontic test and cytoplasm. As gametes begin to differentiate and gametic flagella emerge, pores form in a regular array over the gamontic test, constituting the only avenue for gamete release. The spherical, biflagellated gametes average 1.5μ in diameter and are released in rapidly moving swarms along with flagellated “spherical masses” that probably result from incomplete gametic differentiation. Gametogenesis occurs entirely within the test and utilizes the entire cytoplast. After gamete release is complete, the agglutinated test collapses and disaggregates within a fairly short time. Similar modifications of the gamontic test occur during gametogenesis in Ovammina opaca Dahlgren, but are otherwise unknown among monothalamous agglutinated foraminifera at present. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：20 / 27

页数：8

共 39 条

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