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OALib Journal期刊
ISSN: 2333-9721
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海洋红藻岩生多管藻绒毛变种polysiphoniascopulorumvar.villum形态学研究
Keywords: 红藻门,松节藻科,繁殖结构,分类,地理分布,“,染色-压片”,法
Abstract:
？2013年11月~2014年2月间,在广东汕头南澳岛的野外调查过程中采集到一种丝状红藻,经鉴定为岩生多管藻绒毛变种polysiphoniascopulorumvar.villum(j.agardh)hollenberg,其主要特征为:1.藻体大量密集丛生于岩石上,呈绒毛垫状;2.藻体小,由匍匐枝与直立枝构成,直立枝高度不超过1cm;3.直立枝分枝少或不分枝,枝端顶细胞钝圆;4.假根由围轴细胞中部向外突出产生,不被侧壁切割;5.毛丝体少量且较短,1~3叉,脱落后留下的痕细胞明显;6.囊果长卵形,有喙;7.精子囊枝由毛丝体原发育形成,螺旋排列于枝端,圆柱状,无不孕顶细胞;8.四分孢子囊4-6-(10)个微螺旋状直长列,球形,其孢子囊盖细胞为2个。该种在南中国海为首次记录。为了精细观察藻体的内部结构,摸索出了一套“染色-压片”方法,以方便对此类属种的解剖学结构观察与分类研究。通过对该藻形态学及四分孢子囊的发育进行详细观察,丰富了该物种的形态学知识,扩展了其地理分布等信息。
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