海南省4种江蓠属(红藻门)海藻的形态分类学研究

doi:10.11978/2017118

Abstract

Abstract:

According to the morphological and anatomical procedures, the marine red algal genus Gracilaria was studied using the samples collected from the southeastern coast of Hainan province, China. Four species were identified, namely, Gracilaria eucheumoides, G. blodgettii, G. salicornia, and G. spinulosa. Their morphological characteristics were described in detail. Combined with the Cryo-sectioning Technique, the anatomical figures of all species were obtained, including distinctive cystocarps of Gracilariophila deformans on G. salicornia. These findings provide science and technology support for the protection and utilization of these resources in Hainan province, China.

Key words: Hainan province, Rhodophyta, Gracilaria, Morphology

CLC Number:

P735.531

Yongmei LI, Rui LIU, Nan YANG, Lanping DING, Bingxin HUANG, Yixiao WANG, Yanwei CHEN. Morphological taxonomy of four species of genus Gracilaria (Gracilariaceae, Rhodophyta) from Hainan Province, China[J].Journal of Tropical Oceanography, 2018, 37(4): 29-37.

Figures/Tables 5

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Tab. 1

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结构	物种
结构	刺边江蓠	团集江蓠	样品
高	6~11.5cm	4~4.5cm	2.5~4cm
宽	0.5~1.2cm	1~2mm	1.5~6mm
体厚	415~448μm	448~481μm	330~450μm
胶质层	6~9μm	6~9μm	6~11μm
表层细胞	2层; (7~10)μm×(3~7)μm	1~2层; (3~6.6)μm×(5~6)μm	1~2层; (4~8.5)μm×(5.5~8.5)μm
内皮层细胞	20~40μm	(20~26)μm×(17~20)μm	(17~20)μm×(19~26)μm
髓部细胞	直径132μm; 厚约6μm	(79~145)μm×(73~112)μm; 厚3.3μm	(76~150)μm×(85~170)μm
囊果	1.2mm×1.6mm	未见	(1~1.5)mm×(0.8~1.1)mm
囊果被	12~14层; 厚332~415μm	未见	9~12层; 厚110~280μm
果孢子	17~23μm	未见	10~30μm

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Morphological taxonomy of four species of genus Gracilaria (Gracilariaceae, Rhodophyta) from Hainan Province, China

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