中国海洋湖沼学报（英文版）2006，Vol.24Issue(2)：129-133,5.
Early development of Chondrus ocellatus Holm (Gigartinaceae,Rhodophyta)
Early development of Chondrus ocellatus Holm (Gigartinaceae,Rhodophyta)
摘要
Abstract
Chondrus is an economically important red algae widely used for food and biochemical purpose. It early development is crucial for the culture and seedling propagation. We chose tetraspores and carpospores of Chondrus ocellatus as examples for experiment of the culture, induction and release in laboratory condition, aiming to understand early development of C. ocellatus and to apply in seedling production. Mature C. ocellatus were collected in Qingdao, China, from Nov. to Dec. 2004. After the gametophyte and tetrasporophyte were brushed and washed with sterilized seawater, the algal materials were treated in 1.5% KI for 20 min, then were dried for 1 h to stimulate the releasing of spores. After the spores released overnight, it and recording under microscope were carried out. Continuous observation of the early development showed that both tetraspore and carpospore are similar to each other. In general, three stages of the early development were shown being division, discoid crust and seedling stages. To the division stage, the most obvious feature was the increasing of cell number; during the discoid crust stage, the discoid crust had a three-dimensional axis, and it began to differentiate into two types of cells: the basal cells and the apical cells; and to the seedling stage, several protuberances-like appeared on the discoid crusts and formed juvenile seedlings. Carpospores and tetraspores exhibited a similar development process that included division stage, discoid crust stage and seedling stage.关键词
Chondrus ocellatus/early development/carpospore/tetraspore/discoid crust/seedlingsKey words
Chondrus ocellatus/early development/carpospore/tetraspore/discoid crust/seedlings分类
天文与地球科学引用本文复制引用
..Early development of Chondrus ocellatus Holm (Gigartinaceae,Rhodophyta)[J].中国海洋湖沼学报（英文版）,2006,24(2):129-133,5.基金项目
Supported by NSFC (No. 40376049) and Shandong Agricultural Seed Stock Breeding Project. （No. 40376049）
