New terrestrial cyanobacteria from the Azores Islands: description of Venetifunis gen. nov . and new species of Albertania, Kovacikia and Pegethrix

IF 1.5 4区 生物学 Q3 MARINE & FRESHWATER BIOLOGY
Rúben Luz, Rita Cordeiro, Jan Kaštovský, Jeffrey R. Johansen, Elisabete Dias, Amélia Fonseca, Ralph Urbatzka, Vitor Vasconcelos, Vítor Gonçalves
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引用次数: 1

Abstract

ABSTRACTThe taxonomy of cyanobacteria has advanced quickly with the use of molecular methods in combination with well-defined morphological and ecological characters. Using this approach, many taxonomical changes have occurred in the Synechococcales and Oscillatoriales, with the description of new families, genera and species. Here we present the study of four cyanobacterial strains from the Bank of Algae and Cyanobacteria of the Azores (BACA) culture collection, all isolated from the Azores Archipelago. The strains were genetically characterized through the amplification of the 16S rRNA gene and 16S-23S rRNA internal transcribed spacer (ITS) region, as well as morphologically by light and transmission electron microscopy. One of the strains presented a high genetic divergence from known genera of Synechococcales and was described as Venetifunis florensis gen. & sp. nov. (Trichocoleusaceae, Cyanobacteria). The remaining three strains were found to be new species of the genera Albertania, Kovacikia and Pegethrix. Venetifunis florensis was isolated from the shores of Lake Rasa in Flores Island, Kovacikia atmophytica sp. nov. is a new species mainly distinguished genetically from other Kovacikia species from Terceira Island. Albertania obscura sp. nov. was isolated from inside a volcanic cave in Terceira Island and is distinct both morphologically and genetically from the already described species. Pegethrix atlantica sp. nov. is a new morphologically and genetically different species isolated from São Miguel Island. The description of these new taxa increases the biogeographic knowledge of the four mentioned cyanobacterial genera to remote oceanic islands and new terrestrial habitats.KEYWORDS: AerophyticAtlantic islandsAtmophyticVenetifunis minimusLeptolyngbyaceaeOculatellaceaeTrichocoleusaceae ACKNOWLEDGEMENTSWe thank the association ‘Os Montanheiros’ for the access to Algar do Carvão.DISCLOSURE STATEMENTNo potential conflict of interest was reported by the authors.Supplementary materialSupplemental data for this article can be accessed online at https://doi.org/10.1080/00318884.2023.2259243Additional informationFundingRúben Luz was supported by a Ph.D. grant (M3.1.a/F/002/2020) from the Fundo Regional da Ciência e Tecnologia (FRCT). This work was funded by FEDER funds through the Interreg-MAC 2014-2020 Program under the projects ‘REBECA – Red de excelencia en biotecnología azul (algas) de la región macaronesia (MAC1.1a/060)’ and ‘REBECA-CCT – Red de Excelencia en Biotecnología Azul de la Región Macaronésica. Consolidación, Certificación y Transferencia (MAC2/1.1b/269)’, and by Portuguese National Funds through Foundation for Science and Technology (FCT), under the project UIDB/50027/2020. CIIMAR acknowledges funding by FCT through UIDB/04423/2020 and UIDP/04423/2020. JK and JRJ were supported by Project Inter Excellence LTAUSA 18008.
亚速尔群岛新的陆生蓝藻:Venetifunis gen. nov的描述。Albertania、Kovacikia和Pegethrix的新种
摘要蓝藻的分子分类学在结合清晰的形态学和生态学特征的基础上取得了迅速的进展。利用这种方法,聚球菌科和振球菌科的分类学发生了许多变化,出现了新的科、属和种。在这里,我们提出了四种蓝藻菌株的研究从藻类银行和亚速尔蓝藻(BACA)培养收集,所有从亚速尔群岛分离。通过16S rRNA基因和16S- 23s rRNA内部转录间隔区(ITS)的扩增,以及光镜和透射电镜对菌株进行了遗传表征。其中一个菌株与已知的聚球菌属存在高度遗传差异,被描述为Venetifunis florensis gen. & sp. 11 . (Trichocoleusaceae,蓝藻门)。其余3株分别为Albertania属、Kovacikia属和Pegethrix属新种。科瓦齐亚(Kovacikia atmophytica sp. 11 .)是一种分离自弗洛雷斯岛Rasa湖岸边的新种,主要从遗传上区别于其他科瓦齐亚种。Albertania obscura sp. 11 .是从Terceira岛的一个火山洞穴中分离出来的,在形态和基因上都与已经描述的物种不同。洋蓟(Pegethrix atlantica sp. 11 .)是在米格尔岛分离到的一个形态和遗传上不同的新种。这些新分类群的描述增加了上述四个蓝藻属的生物地理知识到遥远的海洋岛屿和新的陆地栖息地。关键词:空气植物学;大西洋岛屿;植物植物学;声明作者未报告潜在的利益冲突。本文的补充数据可在https://doi.org/10.1080/00318884.2023.2259243Additional informationFundingRúben上在线获取,Luz得到了Fundo Regional da Ciência e Tecnologia (FRCT)的博士资助(M3.1.a/F/002/2020)。本研究由FEDER基金通过interrega - mac 2014-2020计划资助,项目分为“REBECA- Red de excellence en biotecnología azul (algas) de la región macaronacacia (MAC1.1a/060)”和“REBECA- cct - Red de excellence en Biotecnología azul de la Región macaronacacia”。Consolidación, Certificación y Transferencia (MAC2/1.1b/269) ',并由葡萄牙国家基金通过科学和技术基金会(FCT)在UIDB/50027/2020项目下提供。CIIMAR通过UIDB/04423/2020和UIDP/04423/2020确认FCT资助。JK和JRJ得到了LTAUSA 18008卓越项目的支持。
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来源期刊
Phycologia
Phycologia 生物-海洋与淡水生物学
CiteScore
3.10
自引率
18.80%
发文量
54
审稿时长
3 months
期刊介绍: Phycologia is published bimonthly by the International Phycological Society and serves as a publishing medium for information about any aspect of phycology. Membership in the Society is not necessary for publication. Submitted manuscripts cannot be previously published or submitted elsewhere. Copyright ownership of all accepted papers is held by the International Phycological Society.
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