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Seaweeds of Denmark 丹麦海藻
IF 1.6 4区 生物学 Q1 Agricultural and Biological Sciences Pub Date : 2023-06-01 DOI: 10.1080/00318884.2023.2214481
K. Sjøtun
Seaweeds of Denmark, vol. 1, Red algae (Rhodophyta) & vol. 2, Brown algae (Phaeophyceae) and Green algae (Chlorophyta). Ruth Nielsen, Steffen Lundsteen and Juliet Brodie 2022. 401 pp (vol. 1), 439 pp (vol. 2). Det Kongelige Danske Videnskabernes Selskab. Scientia Danica. Series B, Biologica, vols 10, 11. 600 DKK (approximately 80.5€) [softcover: ISBN 978-87-7304-441-4 (vol. 1); ISBN: 978-87-7304442-1 (vol. 2)].
丹麦海藻,第1卷,红藻(红藻门)和第2卷,褐藻(褐藻科)和绿藻(绿藻门)。Ruth Nielsen、Steffen Lundsteen和Juliet Brodie 2022。401页(第一卷)、439页(第二卷)。丹麦皇家科学公司。丹麦科学。B系列,Biologica,第10、11卷。DKK 600(约80.5欧元)[软封面:ISBN 978-87-7304-441-4(第1卷);ISBN 97887-7304442-1(第2卷)]。
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引用次数: 0
ROBERT L. VADAS (5 August 1936–11 February 2023) 罗伯特·VADAS(1936年8月5日至2023年2月11日)
IF 1.6 4区 生物学 Q1 Agricultural and Biological Sciences Pub Date : 2023-05-31 DOI: 10.1080/00318884.2023.2210490
S. Dudgeon, J. Kübler, B. Beal, R. Steneck
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引用次数: 0
Reproductive phenology of a dominant crustose coralline alga, Sporolithon sp., from Taoyuan algal reefs in Northwest Taiwan 台湾西北桃园藻礁优势硬壳珊瑚藻孢子藻繁殖酚学
IF 1.6 4区 生物学 Q1 Agricultural and Biological Sciences Pub Date : 2023-05-31 DOI: 10.1080/00318884.2023.2210979
Yen-Zhen Tan, Li-Chia Liu, L. Tseng, Showe-Mei Lin
ABSTRACT Sporolithon is a common genus of crustose coralline algae occurring at Taoyuan algal reefs in Northwest Taiwan. However, little is known of the reproductive cycles and growth pattern of the genus in relation to environmental changes. In this study, the asexual and sexual reproductive stages of a dominant species of Sporolithon (Sporolithon sp.) occurring in different seasons were documented in detail for the first time based on collections made from the reefs during 2020–2022. Sexual reproductive structures (spermatangial or carposporangial conceptacles) were found all year round, whereas asexual reproductive structures (tetrasporangial compartments) appeared only in the summer and autumn, when sea surface temperature rose above 25°C. These results suggest that the reproductive cycle of this dominant species of Sporolithon is largely affected by sea surface temperature, which ranged between 13.5 and 31.5°C. Furthermore, the high ratio of sterile thalli found in most seasons suggests that the dominant Sporolithon sp. can thrive in environments having variable temperature by vegetative growth. In addition, almost all old gametophytes of Sporolithon sp. have multiple bands of embedded spermatangial or carposporangial conceptacles (up to six layers), suggesting that Sporolithon sp. is a perennial species. Further investigation into the growth pattern and reproductive cycles for other reef-building crustose coralline species occurring in Taoyuan algal reefs is needed to establish a set of biological baseline data for future conservation plans and guidelines.
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引用次数: 2
Systematic revision of the non-geniculate coralline genus Phymatolithon (Hapalidiales, Rhodophyta) from Taiwan, including three new species 台湾非膝状珊瑚藻属(单足目,红藻目)的系统订正,包括三个新种
IF 1.6 4区 生物学 Q1 Agricultural and Biological Sciences Pub Date : 2023-05-29 DOI: 10.1080/00318884.2023.2202533
Li-Chia Liu, Showe-Mei Lin
ABSTRACT Phymatolithon is a dominant genus in the algal reefs in Northwest Taiwan. In this study, we describe three new species of Phymatolithon, P. fragile sp. nov., P. taiwanense sp. nov. and P. variabile sp. nov., based on morpho-anatomical characters examined with both light and electron microscopy, and DNA sequence analyses. Phymatolithon fragile is only found in northern Taiwan (a subtropical area) and can be separated from the other species from Taiwan based on its thin thallus (<130 µm thick when mature vs >200 µm in other species) and the possession of bisporangia only. Phymatolithon taiwanense and P. variabile are widely distributed in both northern (subtropical) and southern (tropical) Taiwan and can only be distinguished by a combination of characters relating to the sizes of tetrasporangial compartments and the number of cell layers in cortex and medulla. In addition, P. taiwanense and P. variabile are the first two species of Phymatolithon shown to occur in tropical waters. This study suggests that our knowledge of the species diversity of Phymatolithon in tropical regions, particularly in the Indo-Pacific, will increase when more collections are made and analysed by a combination of morphological and molecular approaches.
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引用次数: 2
A new small thecate dinoflagellate Azadinium anteroporum sp. nov. (Amphidomataceae, Dinophyceae) isolated from the Asian Pacific 文章题目亚太地区新分离的小鞭毛藻Azadinium anteroporum sp. 11 .(两栖科,甲藻科)
IF 1.6 4区 生物学 Q1 Agricultural and Biological Sciences Pub Date : 2023-05-29 DOI: 10.1080/00318884.2023.2204681
Koyo Kuwata, Wai Mun Lum, Kazuya Takahashi, Garry Benico, H. Uchida, M. Ozawa, Ryoji Matsushima, Ryuichi Watanabe, H. Oikawa, Toshiyuki Suzuki, M. Iwataki
ABSTRACT The marine thecate dinoflagellate Azadinium includes species known to produce the diarrhetic shellfish toxins known as azaspiracids (AZAs). In this study, the morphology of a thecate dinoflagellate isolated from Mutsu Bay, Japan, was examined by LM and SEM, and its phylogenetic position was inferred from ITS and LSU rDNA sequences. The production of AZAs was examined by liquid chromatography-triple quadrupole mass spectrometer (LC-MS/MS). Cells were elliptical, 15.9–22.4 µm long and 11.1–17.1 µm wide. A chloroplast was positioned peripherally, with a pyrenoid near the cingulum, and the nucleus was placed in the hyposome. The hyposome was smaller than the episome, with an antapical spine on plate 2''''. Thecal tabulation was Po, cp, X, 4', 3a, 6'', 6C, 5S, 6''', 2''''. The apical pore complex consisted of a symmetrical apical pore plate (Po), a cover plate (cp) and a small canal plate (X), and was surrounded by a prominent collar formed by the apical plates. A ventral pore was located on the mid-anterior edge of plate 1' and contacted with the X-plate and/or the ventral left of plate Po. Plate 1'' was in contact with plate 1a. AZA was not detected in the cultures. Molecular phylogeny showed that the species was related to Azadinium species that possess the ventral pore on the left side of plate 1', i.e. A. cuneatum, A. dalianense, A. obesum, A. poporum, A. spinosum and A. trinitatum, but that it was not included in these species. The new species Azadinium anteroporum sp. nov. differs in the ventral pore position (mid-anterior edge of plate 1') from these related species (which have the ventral pore on the left side of plate 1'), and from A. polongum (with ventral pore on the posterior left side of 1') and all other Azadinium species (with ventral pore on the right side of 1').
摘要:海洋鞘甲藻Azadinium包括已知能产生腹泻贝类毒素氮螺旋体(AZAs)的物种。本研究利用LM和SEM对从日本木须湾分离的一种鞘甲藻的形态进行了研究,并根据its和LSU rDNA序列推断了其系统发育位置。通过液相色谱-三重四极杆质谱仪(LC-MS/MS)检测AZAs的产生。细胞呈椭圆形,长15.9–22.4µm,宽11.1–17.1µm。叶绿体位于外周,扣带附近有一个蛋白核,细胞核位于下体中。尿道下裂比包皮小,2英寸板上有一根尖刺。该表格为Po、cp、X、4'、3a、6''、6C、5S、6''和2'''。根尖孔复合体由对称的根尖孔板(Po)、盖板(cp)和小管板(X)组成,并由根尖板形成的突出套环包围。腹侧孔位于板1’的中前缘,并与X板和/或板Po的左腹侧接触。板1’’与板1a接触。在培养物中未检测到AZA。分子系统发育研究表明,该物种与具有1’板左侧腹孔的阿扎迪尼属物种有亲缘关系,即楔形阿扎迪尼亚属、达连阿扎迪尼亚属、obesum阿扎迪尼雅属、poporum阿扎迪尼耶属、棘突阿扎迪尼耶属和trinitatum阿扎迪尼娅属,但不包括在这些物种中。新种Azadinium anteriporum sp.nov.在腹面孔位置(板1'的中前缘)上与这些相关物种(在板1'左侧有腹面孔)、A.polongum(在1'的左后侧有腹面孔)和所有其他Azadiniu物种(在1''的右侧有腹面孔径)不同。
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引用次数: 0
Hindakia tetrachotoma ME03 (Chlorophyta) has high phenolic content, antioxidant capacity, and attenuates H2O2-induced oxidative stress and apoptosis in human cells 印度河四眼瘤ME03具有高酚含量、抗氧化能力,能减弱h2o2诱导的人细胞氧化应激和细胞凋亡
IF 1.6 4区 生物学 Q1 Agricultural and Biological Sciences Pub Date : 2023-05-24 DOI: 10.1080/00318884.2023.2202520
O. Bulut, Çağla Sönmez, H. Öktem
ABSTRACT Oxidative stress damages cellular components and may lead to cell death when it is not effectively counterbalanced by the endogenous antioxidant mechanisms. Exogenous sources of antioxidants are also necessary to cope with high levels of free radicals. Microalgae are rich sources of diverse metabolites with high antioxidant potential. In this study, metabolites of Hindakia tetrachotoma ME03, a green microalga previously isolated from thermal springs in Türkiye, were chemically fractionated using four solvents (ethanol-water, ethyl acetate, hexane and water). The extracts were evaluated for their antioxidant capacities, total phenolics, flavonoids and carotenoids. The highest antioxidant capacity, phenolic and carotenoid contents were obtained in the ethanol-water extracts. The antioxidant capacity in the ethanol-water extracts was measured as 12.42 ± 1.21 μmol Trolox g–1 DW and 67.98 ± 3.45 μmol Trolox g–1 DW by DPPH and FRAP assays, respectively. Twelve different phenolic compounds in the ethanol-water and ethyl acetate extracts were quantified by reverse phase high pressure liquid chromatography. Quercetin and rutin were the most abundant phenolics in the ethanol-water extracts, whereas the ethyl acetate extract was rich in phenolic precursor, benzoic acid. Finally, the cytoprotective effect of ethanol-water extracts of H. tetrachotoma ME03 against H2O2-induced oxidative damage was investigated using an in vitro cell line model of human breast adenocarcinoma (MCF7). Hindakia tetrachotoma ME03 extracts significantly decreased the intracellular reactive oxygen species levels and the percentage of apoptotic and necrotic cells in MCF7 cells. These findings suggest the strong cytoprotective activity of H. tetrachotoma ME03 extracts, which may be conferred by its antioxidative properties.
摘要氧化应激损伤细胞成分,如果不能被内源性抗氧化机制有效平衡,可能导致细胞死亡。抗氧化剂的外源性来源对于应对高水平的自由基也是必要的。微藻是多种代谢产物的丰富来源,具有很高的抗氧化潜力。在这项研究中,使用四种溶剂(乙醇-水、乙酸乙酯、己烷和水)对Hindakia tetrahotoma ME03的代谢产物进行了化学分馏,Hindakia tetrahotema ME03是一种以前从土耳其温泉中分离出来的绿色微藻。对提取物的抗氧化能力、总酚类、黄酮类和类胡萝卜素进行了评价。乙醇-水提取物的抗氧化能力、酚类和类胡萝卜素含量最高。通过DPPH和FRAP测定,乙醇-水提取物的抗氧化能力分别为12.42±1.21μmol Trolox g–1 DW和67.98±3.45μmol Trooxx g–2 DW。通过反相高压液相色谱法对乙醇-水和乙酸乙酯提取物中的12种不同酚类化合物进行了定量。槲皮素和芦丁是乙醇-水提取物中最丰富的酚类物质,而乙酸乙酯提取物富含酚类前体苯甲酸。最后,使用人乳腺腺癌(MCF7)的体外细胞系模型研究了H.tetrahotoma ME03的乙醇-水提取物对H2O2诱导的氧化损伤的细胞保护作用。Hindakia tetrahotoma ME03提取物显著降低MCF7细胞中细胞内活性氧水平以及凋亡和坏死细胞的百分比。这些发现表明,H.tetrahotoma ME03提取物具有强大的细胞保护活性,这可能是由其抗氧化特性赋予的。
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引用次数: 0
Nitrate and phosphate uptake of morphologically distinct calcified macroalgae 形态不同的钙化大型藻类对硝酸盐和磷酸盐的吸收
IF 1.6 4区 生物学 Q1 Agricultural and Biological Sciences Pub Date : 2023-05-02 DOI: 10.1080/00318884.2023.2197636
B. C. V. Narvarte, L. A. R. Hinaloc, Shienna Mae C. Gonzaga, Bea A. Crisostomo, T. G. Genovia, M. Roleda
ABSTRACT Calcified macroalgae are essential components of marine ecosystem, yet much of their physiology remains to be understood. Here, the nutrient (NO3– and PO4–3) uptake physiologies of two branched macroalgae, Actinotrichia fragilis (Nemaliophycidae) and Amphiroa fragilissima (Corallinophycidae), and the non-geniculate rhodolith Sporolithon sp. (Corallinophycidae) were examined. Sporolithon sp. had the lowest uptake rate through time and the three calcified macroalgae had a surge in NO3– and PO4–3 uptake that occurred between 3 and 20 min, with a maximum uptake at 3 min, after which the nutrient uptake rates declined. The NO3– uptake of the three calcified macroalgae followed Michaelis-Menten kinetics. For NO3– uptake, Sporolithon sp. had the lowest Km (2.72 ± 0.97 µM), Vmax (0.08 ± 0.01 µmol gDW–1 h–1), Vmax/Km (0.05 ± 0.03 µmol gDW–1 h–1 µM−1) and α (0.01 ± 0.00 µmol gDW–1 h–1 µM−1), while A. fragilis had the highest Km (12.35 ± 0.71 µM) and Vmax (6.41 ± 0.23 µmol gDW–1 h–1), and A. fragilissima had the highest Vmax/Km (1.52 ± 0.26 µmol gDW–1 h–1 µM−1) and α (0.37 ± 0.01 µmol gDW–1 h–1 µM−1). Moreover, the PO4–3 uptake rate of the three species was faster at higher PO4–3 levels. These differences in species-specific nutrient uptake traits are likely caused by differences in morphology. These traits are important for survival and proliferation of this group of marine organisms, particularly in a nutrient-variable environment.
{"title":"Nitrate and phosphate uptake of morphologically distinct calcified macroalgae","authors":"B. C. V. Narvarte, L. A. R. Hinaloc, Shienna Mae C. Gonzaga, Bea A. Crisostomo, T. G. Genovia, M. Roleda","doi":"10.1080/00318884.2023.2197636","DOIUrl":"https://doi.org/10.1080/00318884.2023.2197636","url":null,"abstract":"ABSTRACT Calcified macroalgae are essential components of marine ecosystem, yet much of their physiology remains to be understood. Here, the nutrient (NO3– and PO4–3) uptake physiologies of two branched macroalgae, Actinotrichia fragilis (Nemaliophycidae) and Amphiroa fragilissima (Corallinophycidae), and the non-geniculate rhodolith Sporolithon sp. (Corallinophycidae) were examined. Sporolithon sp. had the lowest uptake rate through time and the three calcified macroalgae had a surge in NO3– and PO4–3 uptake that occurred between 3 and 20 min, with a maximum uptake at 3 min, after which the nutrient uptake rates declined. The NO3– uptake of the three calcified macroalgae followed Michaelis-Menten kinetics. For NO3– uptake, Sporolithon sp. had the lowest Km (2.72 ± 0.97 µM), Vmax (0.08 ± 0.01 µmol gDW–1 h–1), Vmax/Km (0.05 ± 0.03 µmol gDW–1 h–1 µM−1) and α (0.01 ± 0.00 µmol gDW–1 h–1 µM−1), while A. fragilis had the highest Km (12.35 ± 0.71 µM) and Vmax (6.41 ± 0.23 µmol gDW–1 h–1), and A. fragilissima had the highest Vmax/Km (1.52 ± 0.26 µmol gDW–1 h–1 µM−1) and α (0.37 ± 0.01 µmol gDW–1 h–1 µM−1). Moreover, the PO4–3 uptake rate of the three species was faster at higher PO4–3 levels. These differences in species-specific nutrient uptake traits are likely caused by differences in morphology. These traits are important for survival and proliferation of this group of marine organisms, particularly in a nutrient-variable environment.","PeriodicalId":20140,"journal":{"name":"Phycologia","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45000568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Cryptomonas pyrenoidifera organellar genomes and estimation of its ITS2 sequence diversity using lineage directed barcode primers 利用谱系定向条形码引物分析pyrenoidifera隐单胞菌的胞体基因组及其ITS2序列多样性
IF 1.6 4区 生物学 Q1 Agricultural and Biological Sciences Pub Date : 2023-05-01 DOI: 10.1080/00318884.2023.2202069
Lucie O. Hornberger, Isabella J. Maggard, R. Matthews, A. B. Cahoon
ABSTRACT Cryptomonas is a common metropolitan freshwater microalgal genus that is easily recognizable due to its distinctive asymmetric cellular morphology and swimming pattern. There are currently 71 recognized Cryptomonas species but these can be difficult to identify by cellular morphology alone. This makes estimation of Cryptomonas diversity from environmental samples challenging as it requires culturing of strains followed by sequencing of genetic markers for clear identifications. In this paper we describe the isolation and culture of Cryptomonas pyrenoidifera from a small ephemeral pool in Southwestern Virginia, USA, with an annual recurrent population of this genus. Genomic resources from this isolate, including complete chloroplast and mitochondrial genomes, and nuclear and nucleomorph rRNA regions, were completed and archived. Metabarcoding, using lineage-directed primers designed to amplify the ITS2 region of Cryptomonas, was used to estimate an intra-specific variation of 99.3% for the C. pyrenoidifera ITS2 barcode from this natural environment. Metabarcoding also revealed that at least twelve phylogenetic species were present in this body of water. Our results provide new genomic resources for C. pyrenoidifera and suggest that metabarcoding with the ITS2 marker is a feasible approach to estimating Cryptomonas diversity and identification.
隐单胞菌是一种常见的都市淡水微藻属,由于其独特的不对称细胞形态和游动模式而易于识别。目前已知的隐单胞菌有71种,但仅凭细胞形态很难识别。这使得从环境样本中估计隐单胞菌的多样性具有挑战性,因为它需要培养菌株,然后对遗传标记进行测序以明确鉴定。在本文中,我们描述了从美国弗吉尼亚州西南部一个小的短暂池中分离和培养的pyrenoidifera隐单胞菌,该属每年都有复发种群。该分离物的基因组资源,包括完整的叶绿体和线粒体基因组,以及核和核形态rRNA区域,已完成并存档。利用设计用于扩增隐单胞菌ITS2区的定向引物进行元条形码编码,估计C. pyrenoidifera ITS2条形码在自然环境下的种内变异率为99.3%。元条形码还显示,该水体中存在至少12种系统发育物种。本研究结果为隐单胞菌提供了新的基因组资源,表明利用ITS2标记进行元条形码编码是估计隐单胞菌多样性和鉴定的一种可行方法。
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引用次数: 0
Enhanced sampling refines the biogeography of the freshwater green alga Aegagropila linnaei (Cladophoraceae) 加强采样完善了淡水绿藻Aeagropila linnaei(枝藻科)的生物地理学
IF 1.6 4区 生物学 Q1 Agricultural and Biological Sciences Pub Date : 2023-04-27 DOI: 10.1080/00318884.2023.2201152
P. Volkova, E. V. Chemeris
ABSTRACT A phylogeographic approach is the only way to study the dispersal history of most algae, which are rarely preserved as fossils. However, the only freshwater alga for which this approach has been applied on a Eurasian scale is the endangered green alga Aegagropila linnaei, which is thought to be a poor disperser. Previous phylogeographic results were explained by stepwise dispersal across the Holarctic from an ancestral area in Japan, with further survival in European ice-dammed glacial lakes and extinction in continental Siberia, which lacks such refugia. To clarify the biogeography of A. linnaei in Eurasia we supplemented the published data on its ribotype (internal transcribed spacer of ribosomal DNA) distribution with data from previously unexplored East Europe, Mongolia and the Russian Far East. We have found two new ribotypes, one scattered across temperate Europe and another confined to one locality in the north-eastern Russian Far East. We also expanded the distribution of a ribotype previously reported from Scotland and continental West Europe to include East Europe, Iceland and Central Mongolia. Phylogeogeographic approach based on enhanced sampling allowed us to refine the biogeography of A. linnaei. We discuss reasons for underestimation of A. linnaei dispersal potential. A focused inventory of A. linnaei will likely reveal new localities of the species enabling a further improvement in biogeographical reconstructions. Area-wide studies of other freshwater algae in Eurasia need to be performed to test the generality of the revealed biogeographical patterns.
摘要系统地理学方法是研究大多数藻类传播史的唯一方法,这些藻类很少作为化石保存。然而,唯一一种在欧亚范围内应用这种方法的淡水藻类是濒临灭绝的绿藻Aeagropila linnaei,它被认为是一种传播能力较差的藻类。先前的系统地理学结果是通过从日本的一个祖先地区逐步扩散到整个北极地区来解释的,在欧洲的冰坝冰川湖中进一步生存,在缺乏这种避难所的西伯利亚大陆灭绝。为了阐明欧亚大陆林蛙的生物地理学,我们用以前未经探索的东欧、蒙古和俄罗斯远东地区的数据补充了已发表的关于其核糖型(核糖体DNA的内部转录间隔区)分布的数据。我们发现了两种新的核糖类型,一种分布在温带欧洲,另一种仅限于俄罗斯远东东北部的一个地区。我们还将先前报道的一种核糖型在苏格兰和西欧大陆的分布范围扩大到东欧、冰岛和蒙古中部。基于增强采样的系统地理学方法使我们能够完善林蛙的生物地理学。我们讨论了低估林蛙传播潜力的原因。对林蛙的重点调查可能会揭示该物种的新位置,从而进一步改善生物地理重建。需要对欧亚大陆的其他淡水藻类进行区域性研究,以测试所揭示的生物地理模式的普遍性。
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引用次数: 0
A new small-celled naviculoid diatom species, Mayamaea pannonica sp. nov. (Bacillariophyceae) from soda pans in Serbia 塞尔维亚钠盘小细胞naviculoid硅藻新种Mayamaea pannonica sp. nov.(硅藻科)
IF 1.6 4区 生物学 Q1 Agricultural and Biological Sciences Pub Date : 2023-04-21 DOI: 10.1080/00318884.2023.2193121
D. Vidaković, Z. Levkov, J. Krizmanić, B. Beszteri, B. Gavrilović, Miloš Ćirić
ABSTRACT Combining morphological and molecular approaches, a new diatom species is described in the genus Mayamaea from a Special Nature Reserve, Okanj bara in Serbia, an alkaline and subsaline soda pan with pronounced seasonal drying. Mayamaea pannonica sp. nov. possesses typical characteristics of the genus Mayamaea, such as uniseriate striae and hymenes that cover the areolae from the outside. It can easily be distinguished from similar species by the valve outline and shape of the central area. Although presently no culture of the species is available, we identified in an amplicon data set from the same sample a partial 18S rRNA gene sequence that is thought to represent the new species, with high probability. A comparison of our sequence to those present in the Diat.barcode and NCBI databases showed that the sequence is closely related to, but significantly different from, that of Mayamaea terrestris. Natural saline habitats in Serbia and neighbouring countries are under anthropogenic threat and climate change, so knowing which species live here is the first step in preserving these unique habitats.
结合形态学和分子方法,描述了来自塞尔维亚Okanj bara特殊自然保护区的Mayamaea属的一个新的硅藻物种,这是一个具有明显季节性干燥的碱性和亚盐水苏打锅。麻麻属植物具有麻麻属植物的典型特征,如单株条纹和从外部覆盖乳晕的膜层。它可以很容易地从阀的轮廓和形状的中心区域,从类似的物种区分。虽然目前还没有该物种的培养物,但我们在来自同一样本的扩增子数据集中发现了部分18S rRNA基因序列,这被认为是代表新物种的可能性很高。我们的序列与Diat中存在的序列的比较。条形码和NCBI数据库显示,该序列与陆生玛雅(Mayamaea terrestris)密切相关,但差异显著。塞尔维亚及其邻国的天然盐碱地正受到人为和气候变化的威胁,因此了解哪些物种生活在这里是保护这些独特栖息地的第一步。
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引用次数: 0
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