Grateloupia huanghaiensis sp. nov. (Halymeniaceae, Rhodophyta), a peculiar new species from China
Grateloupia huanghaiensis sp. nov. (Halymeniaceae, Rhodophyta), a peculiar new species from China
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DOI：
10.1080/17451000.2014.932913
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发表时间：
2015-04
影响因子：
1.1
通讯作者：
Hong Wang;Y. Guan;Feng-Qin Zhao;Dan-Ni Zhao
中科院分区：
文献类型：
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作者：
Hong Wang;Y. Guan;Feng-Qin Zhao;Dan-Ni Zhao
摘要通过形态学观察和分子生物学分析，对黄海蜈蚣藻Grateloupia huanghaiensis sp. nov.进行了新描述。本文报道了G. huanghaiensis的结果表明，其果殖壶腹和辅助细胞壶腹均为简单的Grateloupia型。该新种与蜈蚣藻属其他种的区别在于：（1）顶端扁平，剑状;（2）单羽状或双羽状分枝;（3）轴和分枝上密被许多短的增殖物;（4）大量的二列或侧生小枝，从叶状体的两端增殖;（5）2 - 4层细胞皮层;（6）密而不规则交织的髓丝;（7）繁殖结构散在于枝表面。分析表明，这个新物种嵌入Grateloupia分支核酮糖-1，5-二磷酸羧化酶/加氧酶基因（rbcL）树。形态学观察和分子分析支持G.黄海苔属（Huanghaiensis）一新种。
Abstract Grateloupia huanghaiensis sp. nov. is newly described on the basis of morphological observations and molecular analyses. We document the vegetative and reproductive structures of G. huanghaiensis, which show that the carpogonial ampullae and auxiliary cell ampullae are of the simple Grateloupia-type. The new species can be distinguished from other Grateloupia species by (1) compressed and sword-like apices; (2) being single or double pinnately branched; (3) axes and branches densely covered with numerous short proliferations; (4) numerous distichous or lateral branchlets with proliferations from either end of the thalli; (5) two- to four-layered cellular cortex; (6) densely and irregularly intertwined medullary filaments; and (7) reproductive structures scattered over the surface of branches. Analysis showed this new species to be embedded within the Grateloupia clade in ribulose-1,5-bisphosphate carboxylase/oxygenase gene (rbcL) trees. Morphological observations and molecular analysis support G. huanghaiensis as a new species.