Distribution of Lithophyllum kuroshioense sp. nov., Lithophyllum subtile and L. kaiseri (Corallinales, Rhodophyta), but not L. kotschyanum, in the northwestern Pacific Ocean
Distribution of Lithophyllum kuroshioense sp. nov., Lithophyllum subtile and L. kaiseri (Corallinales, Rhodophyta), but not L. kotschyanum, in the northwestern Pacific Ocean
复制标题
黑潮石藻 (Lithophyllum kuroshioense sp.) 分布
DOI：
10.1080/00318884.2019.1643200
复制
发表时间：
2019
期刊：
影响因子：
1.6
通讯作者：
Baba Masasuke
中科院分区：
文献类型：
--
作者：
Kato Aki;Baba Masasuke
根据形态解剖学鉴定，热带红海和印度-太平洋地区曾广泛报道过石藻。我们根据形态解剖学和基因序列数据(PSBA、rbcL、COI和LSU)对归属于1的石叶植物标本进行了分类研究。Kotschyanum.Kotschyanum在日本和菲律宾，以及L型标本。Kotschyanumf.subtilis描述自加罗林群岛，一个尚未在现代背景下修订的分类单元。序列比对不能确认L的存在。Kotschyanum，取而代之的是L.黑潮藻(Kuroshioense sp.)11月安德鲁。精巧的梳子。&STAT。11月除分布广泛的热带分类群L.kaiseri外。这三个种都有瘤到果状的鳞片。Kiseriby三细胞的出现(稀有与丰富)和凹陷的四孔/双孢子囊屋顶的比例(22.8%vs1.8%)。帝王和L.黑潮由于其相对较小的四孔/双孔室直径(分别为192-293微米和268-390微米和263-400微米)和较短的孔道长度(分别为11-46微米和40-86微米和40-71微米)而受到影响。毛细胞的发育是Jia Rubens型INL。和变质石龙型INL。帝王和L.精妙的瓷砖。这项研究表明，太平洋西北部至少有三种分枝的三细胞石藻，其中没有一种是ISL。Kotschyanum。
Lithophyllum kotschyanumhad been widely reported across the tropical Red Sea and the Indo-Pacific Ocean based on morpho-anatomical identification. We conducted a taxonomic study, based on morpho-anatomical and gene sequence data (psbA,rbcL, COI and LSU), of branchedLithophyllumspecimens ascribed toL. kotschyanumin Japan and the Philippines, and of the type specimen ofL. kotschyanumf.subtilisdescribed from the Caroline Islands, a taxon not yet revised in a modern context. Sequence comparisons could not confirm the presence ofL. kotschyanum, and instead, recognisedL. kuroshioense sp. nov. andL. subtile comb. & stat. nov. in addition to a widespread tropical taxon,L. kaiseri. The three species shared warty to fruticose thalli.Lithophyllum kuroshioenseis morpho-anatomically distinguished fromL. kaiseriby the trichocyte occurrence (rare vs abundant) and proportion of sunken tetra/bisporangial conceptacle roofs (22.8% vs 1.8%).Lithophyllum subtileis morpho-anatomically distinct fromL. kaiseriandL. kuroshioenseby its comparatively smaller tetra/bisporangial conceptacle chamber diameters (192–293 µm vs 268–390 µm and 263–400 µm, respectively) and by its shorter pore canal lengths (11–46 µm vs 40–86 µm and 40–71 µm, respectively). Trichocyte development is of theJania rubens-type inL. kuroshioense, and of theMetagoniolithon-type inL. kaiseriandL. subtile. This study showed that at least three branched, trichocyte-bearing species ofLithophyllumoccur in the northwestern Pacific Ocean, none of which isL. kotschyanum.