New specimens of the kleptoplastidal dinoflagellate, Gymnodinium eucyaneum Hu were collected from *** of the dinoflagellate and the origin of its symbiont were investigated through light morphology and phylogengetic a...
New specimens of the kleptoplastidal dinoflagellate, Gymnodinium eucyaneum Hu were collected from *** of the dinoflagellate and the origin of its symbiont were investigated through light morphology and phylogengetic analyses based on multiple DNA *** were dorsiventrally *** sharply acute hypocone is conspicuously larger than the hemispherical *** and *** were very similar morphologically, and the main difference between the two was the relative size of the hypocone and epicone.
蜈蚣藻属(Grateloupia ***)隶属于红藻门(Rhodophyta),隐丝藻目(Cryptonemiales),海膜科(Halymeniaceae).对2009年2月5日采自于海南省陵水新村的海膜科蜈蚣藻属标本HN20092088的外部形态、内部结构进行详细观察,并对其rbcL基因序列进行分析,结果如下：(1)藻体紫红色,软骨质,直立,单生,高约5-7cm,宽约4-6cm,主枝里圆柱形,2-3回叉状分枝,小枝互生,基部具柄;(2)藻体的横切面观：藻体由皮层和髓部组成.外皮层由3-5层卵圆形细胞组成,内皮层由5-7层圆形或椭圆形细胞组成,髓层由单条丝体细胞组成,髓丝纵走或错综交织;(3)从该种基于在rbcL基因序列的NJ系统树中的位置,看出该种在蜈蚣藻属中是一个独立的分支,但它和链状蜈蚣藻(***)以及繁技蜈蚣藻(***)聚在一起,成一单系统,说明三者的亲缘关系最近.故确定其为蜈蚣藻属新种,命名为陵水蜈蚣藻(Grateloupia lingshuiensis Wang et Luan ***.).
Grateloupia huanghaiensis *** *** a new species was discovered by my laboratory in *** supplement information on its life history and confirm its best growth ecological condition, early development of *** was investig...
详细信息
Grateloupia huanghaiensis *** *** a new species was discovered by my laboratory in *** supplement information on its life history and confirm its best growth ecological condition, early development of *** was investigated under different temperature gradient and different *** results were listed as follows:(1)Four physiological stage were recognized by continuous microscopic observation: division stage,filament stage, discoid crust stage and erect thalli *** the beginning of the division stage,the carpospores developed germ tubes into which carpospore protoplasm was evacuated and septa was formed between the germ tubes, then the inflated apex of germ tubes began to develop the basal cell.
A comparative investigation was conducted for male and female gametangia,gametes release, germination of swarmers and static spores of the siphonaceous green macroalga Codium fragile and *** from south-east China coas...
详细信息
A comparative investigation was conducted for male and female gametangia,gametes release, germination of swarmers and static spores of the siphonaceous green macroalga Codium fragile and *** from south-east China coast in culture,with the growth of sporelings response to temperature and *** mature female gametangia produced two types of gametes for Codium fragile, including swarmers and static *** swarmers were biflagellate, pyriform, the flagella arising from a cap at the tip of the colorless extension of the hyaline *** static spores were roundness, had no flagella and found assembled.
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