IF 2.2 3区生物学

Fottea Pub Date : 2023-02-08 DOI: 10.5507/fot.2022.012

Somayeh Rasouli-Dogaheh, M. Noroozi, Javad Khansha, M. A. Amoozegar, Rezvan Rahimi, Mahdi Moshtaghi Nikou, T. Hauer

引用次数: 0

DNA signaturing derived from the internal transcribed spacer 2 (ITS2): a novel tool for identifying Desmodesmus species (Scenedesmaceae, Chlorophyta) 来自内部转录间隔区2（ITS2）的DNA标记：一种鉴定Desmodesmus物种的新工具（Scedesmaceae，Chlophyta）

IF 2.2 3区生物学

Fottea Pub Date : 2023-02-08 DOI: 10.5507/fot.2022.005

Minh Ly Nguyen, Xuan Cuong Mai, Nhat Ha Chu, Dang Mau Trinh, Chao-Lin Liu, Chia-Rui Shen

引用次数: 1

Fragilaria radians (Kützing) D.M.Williams et Round, the correct name for F. gracilis (Fragilariaceae, Bacillariophyta): a critical analysis of this species complex in Europe Fragilaria radians (k<e:1> tzing) d.m.w illians等Round，对Fragilaria gracilis (Fragilaria科，硅藻门)的正确名称:对欧洲该物种复合体的批判性分析

IF 2.2 3区生物学

Fottea Pub Date : 2022-08-31 DOI: 10.5507/fot.2022.006

B. Van de Vijver, David M. Williams, Wolf-Henning Kusber, M. Cantonati, P. Hamilton, C. E. Wetzel, L. Ector

{"title":"Fragilaria radians (Kützing) D.M.Williams et Round, the correct name for F. gracilis (Fragilariaceae, Bacillariophyta): a critical analysis of this species complex in Europe","authors":"B. Van de Vijver, David M. Williams, Wolf-Henning Kusber, M. Cantonati, P. Hamilton, C. E. Wetzel, L. Ector","doi":"10.5507/fot.2022.006","DOIUrl":"https://doi.org/10.5507/fot.2022.006","url":null,"abstract":"Fragilaria gracilis is one of the most reported Fragilaria species in Europe, observed in a broad range of water bodies, ranging from (ultra)oligotrophic rivers to even eutrophic lakes. A revision of this important taxon based on the analysis of the morphology of a large number of historic and recent populations was highly needed. In the present study, type material of Fragilaria gracilis and several related taxa such as Synedra radians, Fragilaria pseudolaevissima, S. utermoehlii, F. aquaplus, F. boreomongolica and F. tridentina together with more than 10 modern populations were investigated using LM and SEM observations. The results based on these comparisons show that Fragilaria (Synedra) radians is the name for the taxon formerly known as F. gracilis. Moreover, detailed analysis demonstrated that F. pseudolaevissima and Synedra utermoehlii are conspecific with F. radians and should be considered as heterotypic synonyms. The observations made in this study also resulted in the description of several new species, often with distinct ecologies and distribution areas: Fragilaria huerlimannii Van de Vijver sp. nov., F. acerosa Van de Vijver, C.E.Wetzel, Jarlman et Ector sp. nov., F. neglecta Van de Vijver, C.E.Wetzel, Jarlman et Ector sp. nov., F. heudreana Van de Vijver, C.E.Wetzel et Ector sp. nov., F. eutraphenta Van de Vijver, Kusber et D.M.Williams sp. nov., and F. mertensiana Van de Vijver, C.E.Wetzel et Ector sp. nov. Using an analysis of the associated diatom flora, the ecological preferences of each taxon are briefly discussed.","PeriodicalId":55149,"journal":{"name":"Fottea","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46197582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Diatoms with studied sexual reproduction 研究有性生殖的硅藻

IF 2.2 3区生物学

Fottea Pub Date : 2022-08-31 DOI: 10.5507/fot.2022.003

N. Davidovich, O. Davidovich

引用次数: 0

A new freshwater species Conticribra sinica (Thalassiosirales, Bacillariophyta) from the lower reaches of the Yangtze River, China 文章题目长江下游淡水新种中华螺纹藻(海硅藻门，硅藻门)

IF 2.2 3区生物学

Fottea Pub Date : 2022-08-31 DOI: 10.5507/fot.2021.024

P. Yu, L. Yang, Q. You, Y. Bi, Quanxi Wang

{"title":"A new freshwater species Conticribra sinica (Thalassiosirales, Bacillariophyta) from the lower reaches of the Yangtze River, China","authors":"P. Yu, L. Yang, Q. You, Y. Bi, Quanxi Wang","doi":"10.5507/fot.2021.024","DOIUrl":"https://doi.org/10.5507/fot.2021.024","url":null,"abstract":": A new freshwater diatom species Conticribra sinica sp. nov. Yu, You et Wang from three lakes in the lower reaches of the Yangtze River, China, is described here using a combination of morphological and molecular data from ribosomal DNA genes. The primary distinguishing characteristic of C. sinica was the presence of a non–plicate or slightly–plicate valve face and a single ring marginal fultoportulae that was located at the junction between the valve face and the mantle. There were 4–11 valve face fultoportulae that were located at the subcenter of the valve face. In addition, a single rimoportula replaced a marginal fultoportulae. Areolae loculate were open to the outside by irregularly circular foramina or slit foramina that are radially arranged. Internally, cribra were continuously arranged long a radial arrangement of areolae. Characteristics of the new species with other similar species of Conticribra . Phylogenetic analysis of the nuclear small subunit (SSU) rDNA sequences and nuclear large subunit (LSU) rDNA gene sequences revealed that C. sinica in a single clade at a considerable sequence distance from the other Conticribra species.","PeriodicalId":55149,"journal":{"name":"Fottea","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43124470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The novel marine cyanobacterium Nunduva sanctimaloensis sp. nov. (Nostocales, Cyanobacteria) from rocky shores and its reproduction through modified monocytes 来自岩石海岸的新型海洋蓝藻Nunduva sanctimaloensis sp. 11 .(褐藻门，蓝藻门)及其通过修饰单核细胞的繁殖

IF 2.2 3区生物学

Fottea Pub Date : 2022-08-26 DOI: 10.5507/fot.2021.023

D. Berthold, V. Werner, Forrest W. Lefler, Isabella P. Simon, H. Dail Laughinghouse IV

引用次数: 1

Navicula similecataracta-rheni sp. nov. and N. aquitanonipponica sp. nov. (Bacillariophyta), two new species from Nouvelle-Aquitaine, Southwestern France - comparison with the related species N. cataracta-rheni Lange-Bertalot, N. cryptotenella Lange-Bertalot and N. sancti-naumii Levko et Metzeltin 来自法国西南部新阿基坦的两个新物种rheni sp.nov.和N.aqutanonipponica sp.nov..（Bacillarophyta）——与相关物种N.calicara rheni Lange Bertalot、N.cryptocutella Lange Bertolot和N.santi naumii Levko et Metzeltin的比较

IF 2.2 3区生物学

Fottea Pub Date : 2022-08-26 DOI: 10.5507/fot.2022.007

Delphine Sagnet, B. Van de Vijver, L. Tudesque

引用次数: 0

Four new species of the genus Lacustriella (Bacillariophyta) from Lake Baikal 标题贝加尔湖湖藻属(硅藻门)四新种

IF 2.2 3区生物学

Fottea Pub Date : 2022-08-26 DOI: 10.5507/fot.2022.002

Ye. V. Rodionova, G. Pomazkina, T. Sherbakova

{"title":"Four new species of the genus Lacustriella (Bacillariophyta) from Lake Baikal","authors":"Ye. V. Rodionova, G. Pomazkina, T. Sherbakova","doi":"10.5507/fot.2022.002","DOIUrl":"https://doi.org/10.5507/fot.2022.002","url":null,"abstract":": We add four new species to the recently established genus Lacustriella Kulikovskiy, Lange–Bertalot et Metzeltin and characterize morphology of the taxa based on LM and SEM observations. Lacustriella cuspidata , L. rombea , L. radiata and L. solita share all of the typical morphological features of the genus including longitudinal canal along each valve margin, radiate uniseriate striae terminated with large elongated areolae, and external distant raphe ends bent oppositely. L. cuspidata is peculiar among the other Lacustriella with rows of small pores look as if they continue striae on the surface of longitudinal canals as well as with the axial area sharply widened into the asymmetrical central area. L. rombea is different in combination of valve outline with unprotracted rostrate apices, irregular areolation at centre of the external valve, and slit–like areola occluded with volae. In L. radiata distinctive characters include protracted rostrate valve apices, rhombic central area and volated slit–like areolae. L. solita differs in the highest density of areolae in striae and an ornamented surface of longitudinal canals. New species were compared to the closest morphologically similar taxa. Some general ecological properties and distribution in the littoral zone of the ancient lake are given. microscope (Zeiss, Gottingen, Germany) with a 100× oil immersion objective. LM photographs were taken with an attached TOUPCAM TM DC UA1000CA camera. For scanning electron microscopy 50 µl aliquot of the suspension of cleaned valves was placed on aluminium stub, dried on air, coated with a gold in Balzers SCD 004 sputter coater and examined with an FEI Quanta 200 scanning electron microscope (Eindhoven, Netherland) at a working distance of 10 mm and acceleration voltages of 25–30 kV. Measurements of valves, density of striae and areolae in striae were taken for each photographed cell; at least 20 individuals of each taxon were studied. Valve structure terminology follows K rammer & L ange –B ertalot (1986), R ound et al. (1990) and K ulikovskiy et al. (2012, 2016).","PeriodicalId":55149,"journal":{"name":"Fottea","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46403464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Humidophila manipurensis sp. nov. and the first record of Humidophila bigibba (Hustedt) Lowe, Kociolek, Johansen, Van de Vijver, Lange-Bertalot et Kopalová from Northeast India

IF 2.2 3区生物学

Fottea Pub Date : 2022-08-26 DOI: 10.5507/fot.2022.001

M. Yogeshwaran, C. Radhakrishnan, Atul P. Dwivedi, J. Kociolek, B. Karthick

引用次数: 0

Vladinikolaevia, gen. nov. - a new enigmatic freshwater diatom genus (Cymbellaceae; Bacillariophyceae) from Mongolia Vladinikolaevia，gen.nov.-蒙古一个新的神秘淡水硅藻属（苏贝藻科；硅藻藻科）

IF 2.2 3区生物学

Fottea Pub Date : 2022-08-26 DOI: 10.5507/fot.2021.022

M. Kulikovskiy, J. Kociolek, Y. Liu, I. Kuznetsova, A. Glushchenko

引用次数: 1

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