Morphology of three benthic diatoms from a tropical mangrove in Hainan Island, China: Gyrosigma centropunctatum sp. nov., G. dongzhaiense sp. nov. and G. orbitum Thaler et Kaczmarska

Morphology of three benthic diatoms from a tropical mangrove in Hainan Island, China: Gyrosigma centropunctatum sp. nov., G. dongzhaiense sp. nov. and G. orbitum Thaler et Kaczmarska
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中国海南岛热带红树林三种底栖硅藻的形态:Gyrosigma centropunctatum sp.

DOI:
10.1080/0269249x.2020.1800518
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发表时间:
2020-07
期刊:
影响因子:
1.8
通讯作者:
Kuidong Xu
Kuidong Xu
中科院分区:
生物学4区
文献类型:
--
作者:
Yuhang Li;Tamotsu Nagumo;Zhongmin Sun;Kuidong Xu

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本文报道了从海南岛热带红树林沉积物中分离到的三种底栖拟线虫:中心点状拟线虫G.centroarthatumsp.Nov.、东寨海藻G.dongzhaiense sp.11月和Orbitum Thaler et Kaczmarska。中点环纹夜蛾是一种管居物种,在中心区域的两侧都有一排独特的气孔。东寨甲藻细胞体积小、线形-乙字形轮廓、纹线密度高,与同类不同。赤眼蜂Gyrosigma orbitum是另一种管栖种,其外中心区有两个显著的椭圆形凹坑。这项研究扩大了我们对热带西太平洋Gyrosigma海洋物种多样性和分布的了解。文中还讨论了管状标本在环纹盘属种类鉴定中的分类意义。
Three benthic Gyrosigma species isolated from sediments of a tropical mangrove in Hainan Island, China, are described using light, scanning and transmission electron microscopy: G. centropunctatum sp. nov., G. dongzhaiense sp. nov. and G. orbitum Thaler et Kaczmarska. Gyrosigma centropunctatum is a tube-dwelling species possessing a unique row of pores on either side of the central area. Gyrosigma dongzhaiense differs from congeners by a combination of small cell size, linear-sigmoid outline, and higher stria density. Gyrosigma orbitum is another tube-dwelling species, which possesses two remarkable oval pits on the external central area. This study expands our knowledge of the marine species diversity and distribution of Gyrosigma in the tropical Western Pacific. We discuss the taxonomic significance of tubes in the species identification of Gyrosigma.
DOI: 10.2307/1351135
发表时间: 1966-06
期刊: --
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