Protistology最新文献_第6页

Sensitivity of dinoflagellates to mechanical stressors as a potential target to control harmful blooms in aquaculture 鞭毛藻对机械压力的敏感性作为控制水产养殖有害藻华的潜在靶点

Protistology Pub Date : 2021-01-01 DOI: 10.21685/1680-0826-2021-15-4-4

O. Matantseva, M. Berdieva, I. Pozdnyakov

引用次数: 0

New life for old discovery: amazing story about how bacterial predation on Chlorella resolved a paradox of dark cyanobacteria and gave the key to early history of oxygenic photosynthesis and aerobic respiration 旧发现的新生命:关于细菌如何捕食小球藻的惊人故事解决了暗蓝藻的悖论，并为氧气光合作用和有氧呼吸的早期历史提供了关键

Protistology Pub Date : 2021-01-01 DOI: 10.21685/1680-0826-2021-15-3-2

A. Pinevich, S. Averina

{"title":"New life for old discovery: amazing story about how bacterial predation on Chlorella resolved a paradox of dark cyanobacteria and gave the key to early history of oxygenic photosynthesis and aerobic respiration","authors":"A. Pinevich, S. Averina","doi":"10.21685/1680-0826-2021-15-3-2","DOIUrl":"https://doi.org/10.21685/1680-0826-2021-15-3-2","url":null,"abstract":"chlorophyll-less bacterium Vampirovibrio chlorellavorus attacking Chlorella vulgaris and described its morphology and life cycle, although misattributed it to the phylum Proteobacteria. Over four decades, freeze-dried samples of infected Chlorella have been stored in oblivion, until in the early 2010s “proteobacterial” predator was reattributed to the phylum Cyanobacteria. V. chlorellavorus , the type species of the order Vampirovibrionales within the class Vampirovibrionia became the first, and to date unique cultured “dark” (non-photosynthetic, chlorophyll-less) cyanobacterium in contrast to “light” (photosynthetic, chlorophyll-containing) members of the class Oxyphotobacteria that habitually encompassed the phylum Cyanobacteria. Thus, taxonomic reattribution of V. chlorellavorus confirmed the early suggestions that cyanobacteria (blue-green algae) were not only photosynthetic microorganisms. Consequent metagenomic studies have extended the described diversity of dark cyanobacteria: besides Vampirovibrionales, the class Vampirovibrionia was shown to contain the orders Gastranaerophilales, Obscuribacterales, and Caenarcanales embracing metabolically diverse species with different lifestyles from development in ground water to obligate symbiosis with microalgae and oxymonad protists. Metagenomic research of dark cyanobacteria over the past decade elicited three phyla sibling to Cyanobacteria – Blackallbacteria (former Sericytochromatia), Margulisbacteria, and Saganbacteria. Comparative analysis and annotation of their metagenome-assembled genomes (MAGs) revived the discussion on the origin of oxygenic photosynthesis and aerobic respiration, primarily focusing at dilemma “dark cyanobacteria: primordial or late”. Thus, besides opening separate page in research of symbioses between protists and bacteria, and apart from looking deeper into diversity of cyanobacteria, the discovery of V. chlorellavous got a new life within evolutionary biology mainstream.","PeriodicalId":37502,"journal":{"name":"Protistology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67889978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Multiple control of alternative oxidase 1 in Chlamydomonas reinhardtii under phosphorus deprivation 缺磷条件下莱茵衣藻选择性氧化酶1的多重控制

Protistology Pub Date : 2021-01-01 DOI: 10.21685/1680-0826-2021-15-3-6

Reem Alqoubaili, V. Derkach, E. Ermilova

引用次数: 0

Heterotrophy in dinoflagellates: components of endocytosis molecular machinery in Prorocentrum cordatum and Amphidinium carterae transcriptomes 鞭毛藻的异养:心形原心藻和角足藻转录组中内吞分子机制的组成部分

Protistology Pub Date : 2021-01-01 DOI: 10.21685/1680-0826-2021-15-4-6

M. Berdieva, V. Kalinina, A. Fel, S. Skarlato

引用次数: 1

The complete mitochondrial genome of an unusual strain of tiny vannellid amoeba (Amoebozoa, Discosea, Vannellida) isolated from the Niagara River (Canada) 从加拿大尼亚加拉河分离的一种不寻常的微小vanannellid变形虫(变形虫，Discosea, vanannellida)的完整线粒体基因组

Protistology Pub Date : 2021-01-01 DOI: 10.21685/1680-0826-2021-15-4-8

N. Bondarenko, A. Glotova, E. Nassonova, A. Masharsky, A. Smirnov

引用次数: 1

Description of Leptomyxa silvatica n. sp. (Amoebozoa, Tubulinea, Leptomyxida), a new soil amoeba species from Chernevaya taiga soil of West Siberia, Russia 俄罗斯西伯利亚西部切尔涅瓦亚针叶林土壤中土壤变形虫新种Leptomyxa silvatica n. sp.(变形虫亚目，管状目，Leptomyxida)的描述

Protistology Pub Date : 2021-01-01 DOI: 10.21685/1680-0826-2021-15-4-7

A. Glotova, S. Loiko, Georgy I. Istigichev, A. Kulemzina, E. Abakumov, A. Lapidus, A. Smirnov

引用次数: 5

Experimental infection of the fly Calliphora vicina with the trypanosomatid Angomonas deanei and cross-infection between different calliphorid species 刺蝇感染锥虫病的实验研究及不同种类刺蝇的交叉感染

Protistology Pub Date : 2021-01-01 DOI: 10.21685/1680-0826-2021-15-2-4

A. I. Ganyukova, M. N. Malysheva, A. Frolov

引用次数: 0

A checklist of Amoebozoa species from marine and brackish-water biotopes with notes on taxonomy, species concept and distribution patterns 海洋和咸淡水生物群落阿米巴原虫种类清单，并附有分类、物种概念和分布模式的说明

Protistology Pub Date : 2021-01-01 DOI: 10.21685/1680-0826-2021-15-4-3

A. Kudryavtsev, E. Volkova, F. Voytinsky

引用次数: 6

Production of polyclonal anti-β-tubulin antibodies and immunodetection of Vairimorpha (Nosema) ceranae (Opisthosporidia: Microsporidia) proliferative stages in the midguts of Apis mellifera and in the Sf9 cell culture 多克隆抗β-微管蛋白抗体的产生及蜜蜂中肠和Sf9细胞培养中小孢子虫增殖阶段的免疫检测

Protistology Pub Date : 2021-01-01 DOI: 10.21685/1680-0826-2021-15-1-1

I. Senderskiy, A. Ignatieva, D. S. Kireeva, V. Dolgikh

引用次数: 1

An overview of the genus Quadrulella (Arcellinida: Hyalospheniidae) from Bulgaria, with description of Quadrulella deflandrei sp. nov. 保加利亚四足蝇属概述(圆蝇目:透明蝇科)，并附四足蝇属的描述。

Protistology Pub Date : 2021-01-01 DOI: 10.21685/1680-0826-2021-15-2-1

N. Bankov, M. Todorov, A. Ganeva

{"title":"An overview of the genus Quadrulella (Arcellinida: Hyalospheniidae) from Bulgaria, with description of Quadrulella deflandrei sp. nov.","authors":"N. Bankov, M. Todorov, A. Ganeva","doi":"10.21685/1680-0826-2021-15-2-1","DOIUrl":"https://doi.org/10.21685/1680-0826-2021-15-2-1","url":null,"abstract":"Summary All species of the genus Quadrulella recorded in Bulgaria are described morphologically and morphometrically and distributional data for them are provided. A new testate amoeba Quadrulella deflandrei sp. nov. isolated from Sphagnum mosses is described. The newly described species resembles Q. symmetrica in its general shape, but differs from it by about twice the size and significantly more and larger shell plates (maximum size 15–19 µm in Q. deflandrei vs. 10–12 µm in Q. symmetrica ). On the other hand, Q. deflandrei has a similar size as Q. quadrigera and Q. squtellata but can be easily distinguished from them by the size and arrangement of the plates: in Q. quadrigera shell plates are relatively small and similar in size (8–10 µm), arranged in numerous rows, often mixed with single round or elliptical plates; in Q. scutellata , small quadrangular plates are usually superimposed at the junctions of the larger plates. The analysis of the variation coefficients shows that the population of the newly described species is homogeneous and all characters and ratios measured are weakly to moderate variable (CV range from 4.98% to 9.78%). The shell length, breadth and depth, as well as length/breadth ratio are the most stable characters (CV between 4.98% and 6.79%). Moderate variability is observed for the aperture and breadth/aperture ratio (9.24% and 9.72%, respectively). Our study of many individuals of Q. longicollis gives us evidence to support the view that it is a well-defined and independent species, clearly distinguishable from Q. symmetrica and Q. variabilis . We discuss the high morphological and morphometric variability of Q. symmetrica and the need for molecular studies of European narrow-shelled and tubular forms, very similar to the recently described South African species Q. madibai , to elucidate their taxonomic status. We synonymise Quadrulella symmetrica var. irregularis Penard, in Wailes and Penard, 1911 with Quadrulella longicollis (Taranek, 1882).","PeriodicalId":37502,"journal":{"name":"Protistology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67888743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0