Three new species of Fallacia from intertidal sediments in Japan

Three new species of Fallacia from intertidal sediments in Japan
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日本潮间带沉积物中的法拉西亚三个新种

DOI:
10.1080/0269249x.2019.1606855
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发表时间:
2019-04
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;Hidekazu Suzuki;Tamotsu Nagumo;Jiro Tanaka;Zhongmin Sun;Kuidong Xu

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水仙属植物三新种--三叶水仙F.miyajimens sp.Nov.、结瘤镰刀菌F.nov.Nov.和相似镰刀菌F.similigemmifera sp.11月是从日本的潮间带沉积物中描述的。用光学显微镜、扫描电子显微镜和透射电子显微镜研究了它们的形貌。Fallacia miyajimsis与同类植物的不同之处在于存在顶孔,顶孔是一种细孔,具有指状延伸,具有单列的气孔,在中缝附近有厚层,内部有孤立的凹陷和小孔。与同类植物不同的是,有一种独特的不对称的内部中央根瘤。它也可以通过纹状密度、短伸展的圆锥和中央凸出的外侧胸骨来区分。与同类植物不同之处在于它的披针形瓣膜轮廓、或多或少笔直、明显的侧面区域和内部中央根瘤上存在的直立面。我们认为,穹隆和侧胸骨的结构组合是物种鉴别的一个稳定特征,可以用来划分物种群。相似黄花扣带由一个开阔的瓣膜和两条不同叶舌的线形带组成。这种类型的扣带结构也存在于F.tenera、F.hodgeana中,可能也存在于F.litoricola和F.Frta中,并且可能常见于Fallacia。
Three new species of Fallacia, F. miyajimensis sp. nov., F. nodulifera sp. nov., and F. similigemmifera sp. nov. are described from intertidal sediments in Japan. Their morphologies are studied with light, scanning and transmission electron microscopy. Fallacia miyajimensis differs from congeners in the presence of an apical pore, a finely porous conopeum possessing finger-shaped extensions with uniseriate rows of pores and a thick layer adjacent to the raphe with isolated depressions with small pores inside. Fallacia nodulifera differs from congeners in the presence of a unique asymmetric internal central nodule. It can also be distinguished by the combination of stria density, conopeum with short extensions, and centrally convex lateral sterna. Fallacia similigemmifera differs from congeners by its lanceolate valve outline, more or less straight, distinct lateral areas and the presence of a rectelevatum on internal central nodule. We suggest that the structural combination of the structure of the conopeum and the lateral sterna is a stable feature in species discrimination and could be used to define species groups. The cingulum of F. similigemmifera comprises a wide open valvocopula and two linear bands with different ligulae. This type of cingulum structure is also present in F. tenera, F. hodgeana, and probably in F. litoricola and F. fracta as well, and likely occurs commonly in Fallacia.
DOI: 10.2216/i0031-8884-38-1-8.1
发表时间: 1999
期刊: Phycologia
影响因子: 1.6
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DOI: --
发表时间: 2014
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发表时间: 2014-04
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影响因子: 1.1
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DOI: 10.1080/0269249x.1991.9705184
发表时间: 1991-11
期刊: Diatom Research
影响因子: 1.8
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