Chaetoceros Tenuissimus, olympicus sp. Fig. (a – c), Thalassiosira sp. 2022). Long setae emerge from corners of the cells. Les Diatomacées: le genre "Chaetoceros". from Catalan coastal waters (NW Mediterranean) a Laura Arin a, Albert Reñé a, Rachele Gallisai a, Diana Sarno b, Esther Garcés a and Marta Estrada 海洋硅藻Chaetoceros tenuissimus对ssDNA和ssRNA病毒感染的转录组响应机制解析 《Virus Research》：Transcriptomic insights into host transcriptional manipulation by ssDNA and ssRNA viruses in the marine planktonic diatom Chaetoceros tenuissimus 【字体： 大 中 小 】 时间：2025年07月19日 来源：Virus Research 2. simplex Os Chaetoceros tenuissimus CT16ED (hereafter called CTEN) was isolated from a Mediterranean lagoon (Diana lagoon 42°07′55"N 09°32′12"E, Corsica Island, France) during May 2016 (Grzebyk et al. The planktonic diatom Chaetoceros tenuissimus sometimes forms blooms in coastal surface waters where dissolved inorganic phosphorus (P) is typically deficient. Request PDF Chaetoceros tenuissimus (Bacillariophyta, Centrales) was selected since it can be easily found in the Mediterranean Sea, Atlantic Ocean, Japanese coastal waters, and other many places (Hongo et al. tenuissimusstrain NIES-3715 ABSTRACT Among the marine planktonic diatoms, Chaetoceros is among the most species-rich genera, and many Chaetoceros species are considered important primary producers. 3. Vegetative cells of Chaetoceros tenuissimus 角毛藻属 （Chaetoceros）也称 角刺藻属，有大约400个物种，可能是海洋浮游 硅藻 中最大的一个属，广泛分布于全球近岸水域 [1]。角毛藻属里不同的物种较难辨认。 [2] 许多人都在将这一庞大的属分类为亚属，但这一工作仍在继续。 [3][4] 现已发现的物种主要分布在北半球，由于角毛藻属遍布各地，故 In this study, we constructed full-length cpDNAs for seven Chaetoceros species, including C. 2022: 290) Notes: Iconotype: C. The present study characterized, at the mRNA transcript level, the gene Download scientific diagram | Chaetoceros tenuissimus. However, little is known about the ecology and distribution of the few small solitary species within this genus, including Chaetoceros tenuissimus. tenuissimus but the phylogenetic analysis indicated a C. This species has a high growth rate (at least three divisions per day) and blooms occur throughout the spring and autumn (Hongo et al. The type species (lectotype) of the genus Chaetoceros is Chaetoceros tetrachaeta Ehrenberg. tenuissimus) or having an alt Cultures of the bloom-forming centric diatom, Chaetoceros tenuissimus strain 2-10, were infected by one of two taxonomically distinct viruses—the ssRNA virus, Chaetoceros tenuissimus RNA virus (CtenRNAV) type I (36), and the ssDNA virus, Chaetoceros tenuissimus DNA virus (CtenDNAV) type I (37)—alongside uninfected control (Ctrl) cultures. tenuissimus can be observed from beginning to end of HABs: therefore, detailed analysis is necessary to characterize each growth phase of C. and Celeribacter baekdonensis during the exponential growth. tenuissimus DNA virus (CtenDNAV) [15], C. Chaetoceros tenuissimus CT16ED (hereafter called CTEN) was isolated from a Mediterranean lagoon (Diana lagoon 42°07′55"N 09°32′12"E, Corsica Island, France) during May 2016 (Grzebyk et al. [4] Some strains grow quickly and produce high amounts of lipids, sparking interest in potential usage for biofuels. 2022 [学会発表] 新たに分離したChaetoceros tenuissimus感染ウイルスクローンの殺藻特性に基づいた同ウイルスー宿主珪藻の生態学的関係 2022 [学会発表] 海産珪藻Chaetoceros tenuissimusのゲノム中に見られた感染性ウイルス遺伝子の挿入履歴 2022 Diatoms form a diverse and abundant group of photosynthetic protists that are essential players in marine ecosystems. muelleri, C. tenuissimus and C. Chaetoceros Ehrenberg is one of the most diverse genera of planktonic diatoms. VII, fig. 55 Published in: Meunier, A. tenuissimus can be observed from beginning to end of HABs: therefore, detailed analysis is necessary to characterize each Marine diatoms are important primary producers. | Find, read and cite all the research you need Chaetoceros tenuissimus Meunier, 1913 Species Chromista > Heterokontophyta > Bacillariophyceae > Chaetocerotanae incertae sedis > Chaetocerotaceae > Chaetoceros WoRMS: 156623 NCBI: 426638 Open in mapper Explore occurrences Abstract Dissolved nutrients, especially inorganic nitrogen (N) and inorganic phosphorus (P), are typically deficient in the coastal surface waters of temperate regions during warm seasons. tenuissimus. To further understand this relationship, we sequenced the C. For strain taxonomy we generally use AlgaeBase for algae and Adl et al. curvisetus, C. Mémoires du Musée Royal d'Histoire Naturelle de Belgique 7 (2): 1-58, 7 pls. Chaetoceros tenuissimus (C. PDF | The morphology of Chaetoceros tenuissimus Meunier, a little-known species, has been studied for the first time with electron microscopy. sp. The morphology of Chaetoceros tenuissimus Meunier, a little-known species, has been studied for the first time with electron microscopy. The growth curve of C. pseudo-curvisetus, C. tenuissimus has been placed as a synomyn of C. This name is of an entity that is currently accepted taxonomically. Le genre Chaetoceros Ehr. (d – f), Chaetoceros tenuissimus (g – i) and Synedra sp. tenuissimus, all of which were isolated from coastal waters in China. The marine planktonic diatom, Chaetoceros tenuissimus Meunier (Bacillariophyta, Centrales), is rectangular in the girdle view and is one of the smallest (~ 5 µm) diatoms. Even under the conditions of inorganic N and P deficiencies, the planktonic diatom Chaetoceros tenuissimus sometimes forms blooms. When exposed to contaminants such as industrial chemicals, pharmaceuticals, pesticides, heavy metals, and synthetic nano Chaetoceros tenuissimus (Bacillariophyta, Centrales) was selected since it can be easily found in the Mediterranean Sea, Atlantic Ocean, ABSTRACT Among the marine planktonic diatoms, Chaetoceros is among the most species-rich genera, and many Chaetoceros species are considered important primary producers. Microplancton de la mer Flamande. Chaetoceros tenuissimus growth was reduced in the absence of B vitamins. lorenzianus DNA virus (ClorDNAV) [16], C. and the pennate diatom Thalassionema have been isolated: C. socialis, and C. T The morphology of Chaetoceros tenuissimus Meunier, a little-known species, has been studied for the first time with electron microscopy. The genus Chaetoceros is among the most species-rich marine planktonic diatoms. (1913). Introduction to Chaetoceros tenuissimus: scientific and common names, protected status (red lists, regulations), biological status in France, historical and contemporary. 2. Both viruses are capable of killing the host in vitro experiments; however, the molecular mechanisms by which host genes respond an …. 55: (Arin & al. Chaetoceros tenuissimus Meunier 1913 Publication Details Chaetoceros tenuissimus Meunier 1913: 49, pl. This species is widely distributed and is observed in Japanese coastal waters 10, the Narraganset Bay 29, the Mediterranean Sea 30, 31, and the San Matıas Gulf 32. Type locality: Belgium: Ostende; (INA 1996) Holotype: Meunier 1913: Pl. Mar 4, 2022 · Based on the literature and the available sequence data, the analysed strains were similar to C. 1ére Partie. Culture media, purity and growth conditions: Medium: f/2 + Si; Bacteria present; maintained by serial subculture; 15 deg C. Gran (1897) divided the genus in two subgenera, Chaetoceros (formerly Phaeoceros) and Hyalochaete, which can be distinguished based on the location of plastids. 5 本期推荐：研究团队针对水产养殖中活饵料营养供给难题，通过对比地中海泻湖株系Chaetoceros tenuissimus（CTEN）与常用饵料藻C. nov. radians strain NIES-3713 and Chaetoceros tenuissimus strains NIES-3714 and NIES-3715, which possess different viral susceptibility spectra. Most Chaetoceros are considered important primary producers in various marine environments, but because of their small size, we know little about their ecology and distribution. Hayez, imprimeur de l'Académie royale de Belgique Harmful algal blooms (HABs) are a natural phenomenon caused by outbreaks of algae, resulting in serious problems for aquatic ecosystems and the coastal environment. Algae play a vital role in aquatic ecosystems, contributing to oxygen production and serving as a foundational component of the food chain. These results show a diversity of specific interactions between the diatoms and co-isolated bacteria, ranging from allelopathy to commensalism. Generally, considerable effort is needed to maintain many diatom cultures through periodic sub-inoculation and photoirradiation cultivation procedures. Mémoires du Musée Royal d'Histoire Naturelle de Belgique = Verhandelingen van het Koninklijk Natuurhistorisch Museum van België, VII (2). Several frustules of the species, SEM. (1914 '1913'). debilis DNA virus (CdebDNAV) [14], C. However, the delimitations of some species are problematic because of limited morphological information in the classical descriptions. In this study, we constructed full-length cpDNAs for seven Chaetoceros species, including C. One of the smallest diatoms, Chaetoceros tenuissimus, can coexist with infectious viruses during blooms. The adsorption kinetics of Chaetoceros tenuissimus DNA virus (CtenDNAV-II) and Chaetoceros tenuissimus RNA virus (CtenRNAV-II) were compared using the marine plank-tonic diatoms Chaetoceros socialis f. Two valves Chaetoceros tenuissimus Meunier Published in: Meunier, A. It is one of the largest genera of diatoms, roughly 400 species, most of which are marine and there were a few solitary species that were found in Monterey Bay Diatoms are important components of the biological community and food web in the aquatic environment. Scale bars = 5 µm (Fig. Monoclonal strains of the section Chaetoceros were Among marine planktonic diatoms, Chaetoceros is the most species-rich genus, with over 400 species described (Rines & Hargraves, 1988). The present study characterized, at the mRNA transcript level, the gene expression patterns in N- or P-limited cultures of C. To understand the molecular mechanisms for survival under P-deficient conditions, we compared whole transcripts and metabolites with P-sufficient conditions using stationary growth cells. Aug 1, 2022 · The algal species Chaetoceros tenuissimus was isolated by serial dilution from natural brackish water the Orbetello Lagoon and treated with antibiotics (amoxicillin 25 mg/L) to produce an axenic culture following the protocol proposed by Spilling (2020). Harmful algal blooms (HABs) are a natural phenomenon caused by outbreaks of algae, resulting in serious problems for aquatic ecosystems and the coastal environment. 3), 2 µm (Figs 2, 4, 5), or 1 µm (Figs 6, 7). Although CCAP makes every effort to ensure the correct taxonomic identity of strains, we cannot guarantee that a strain is correctly identified at the species, genus or class levels. laevisporus, C. salsugineus, and comparison with C. The species in section Chaetoceros are characterized by cells and setae having numerous chloroplasts and being widely distributed. Chaetoceros tenuissimus Meunier, 1913 (synony-mous with C. , 2019 Species Chaetoceros affinis Lauder, 1864 Species Chaetoceros anastomosans Grunow, 1882 Species Chaetoceros angularis 海産珪藻の形態とDNA解析②全25種 海産珪藻＝Chaetoceros属の形態とDNA解析 目的 海産キートケロス属は、珪藻の中でも種類、量共に多く海洋の生態系や動物プランクトンの餌料生物として大変重要な役割を果たしております。 planktonic diatom, Chaetoceros tenuissimus Meunier (Bacillariophyta, Centrales), is rectangular in the girdle view and is one of the smallest (~ 5 μm) diatoms. calcitrans（CCAL）在连续光照（24:00 L:D）与光暗循环（12:12 L:D）下的生长、光合色素及脂质代谢差异，发现CTEN在DHA含量（22:6n-3）与光适应性 Seven ssDNA viruses that infect the centric diatom Chaetoceros spp. tenuissimus was stimulated by Alteromonas sp. Diatom Research, 17 (2): 327-335 [details] Nov 24, 2021 · One of the smallest diatoms, Chaetoceros tenuissimus, can coexist with infectious viruses during blooms. Moreover, the growth of C. salsugineus (Takano 1983: figs 2, 3, 5, 6 and 12. This study uses genome-resolved metagenomics to identify microdiversity patterns and their link with environmental factors in natural phytoplankton populations of the diatom genus Chaetoceros. 7: fig. Here, we report the characteristics of a single-stranded RNA (ssRNA) virus (CtenRNAV01) that infects the marine diatom Chaetoceros tenuissimus Note: for strains where we have DNA barcodes we can be reasonably confident of identity, however for those not yet sequenced we rely on morphology and the original identification, usually made by the depositor. costatus, C. ABSTRACT Among the marine planktonic diatoms, Chaetoceros is among the most species-rich genera, and many Chaetoceros species are considered important primary producers. (2019) for protists. salsugineum DNA virus (CsalDNAV, previously reported as CsNIV) [13], C. Environment stress and contamination can lead to harmful algal blooms, depleting oxygen levels and creating dead zones in water bodies. tenuissimus) is one of the diatoms responsible for HABs. clonal, red tide, acquired from MCC-NIES collection, Japan, in September 2019. galvestonensis Collier & Murphy, 1962; Subgenus Chaetoceros (Hyalochaete) Subgenus Chaetoceros (Phaeoceros) Gran Species Chaetoceros (Phaeoceros) dadayi Pavillard, 1913 accepted as Chaetoceros dadayi Pavillard, 1913 (uncertain > unassessed) Species Chaetoceros acadianus Samanta & Porcher in Kaczmarska et al. These observations were recapitulated in Fe-limited cultures of the bloom-forming, centric diatom, Chaetoceros tenuissimus, which exhibited delayed virus-mediated mortality in addition to reduced Thus, despite the existence of diverse Chaetoceros species in marine ecosystems, the composition and spatial–temporal dynamics of Chaetoceros species in marine ecosystems remain largely unknown, resulting in the underappreciation of their role in marine ecosystems and inadequate understanding of the ecological adaptation mechanisms of a large Chaetoceros is a species-rich diatom genus with broad distribution and plays an important role in global carbon cycle and aquatic ecosystems. To reduce these endeavors and promote diatom research, this study established a simplified method for the cryopreservation of marine diatoms. To understand the molecular mechanisms for survival under P-deficient conditions, we compared whole transcripts and metabolites with P-suffi … 水産研究・教育機構から登録された珪藻 (Chaetoceros tenuissimus)の配列データが公開されました。アクセッション番号は以下の通りです。 g Chaetoceros, with currently well over 200 taxonomically accepted species, is arguably the most diverse genus of planktonic diatoms in the marine realm (Guiry and Guiry, 2018). Therefore, from 2008 to 2012, we examined the occurrence of C. tenuissimus to propose the molecular markers of N- and P-deficient states of C. tenuissimus strain NIES-3715 genome. Taxonomic relationship between two small-sized Chaetoceros species (Bacillariophyta): C. Species in the genus Chaetoceros are found in marine waters all over the world, where they can often form algal blooms. Chaetoceros calcitrans CCAP 1085/3 (hereafter called CCAL), was obtained from the Culture Collection of Algae and Protozoa (Oban, UK). Chaetocerotaceae, Chaetoceros: By: Sarah Scott Introduction: Chaetoceros is the largest genus of marine plank-tonic diatoms. A morphological study of Chaetoceros tenuissimus Meunier, a little-known planktonic diatom, with a discussion of the section Simplicia, sugenus Hyalochaete. strain TG07-C28 DNA The marine diatom Chaetoceros tenuissimus coexists in the coastal ocean with two distinct viruses: a circular single-stranded DNA virus and a single-stranded RNA virus. (j – l) at ambient (black symbol) and warming (red The majority of species of the highly diverse genus Chaetoceros are described as chain-forming, although several species are described as strictly solitary (such as C. C. , 2021). Their cells form chains that are coiled, curved, or straight. tenuissimus is discussed. However, genomic information of Chaetoceros species is limited, hindering advanced researches on Chaetoceros Even under the conditions of inorganic N and P deficiencies, the planktonic diatom Chaetoceros tenuissimus sometimes forms blooms. tenuissimus can be observed from beginning to end of HABs: therefore, detailed analysis is necessary to characterize each One of the smallest diatoms, Chaetoceros tenuissimus, can coexist with infectious viruses during blooms. Microplankton de la Mer Flamande: 1. tenuissimus Meunier, one of the smallest members in the genus, and its Patterns of thermal adaptation in Chaetoceros sp. On ABSTRACT Among the marine planktonic diatoms, Chaetoceros is among the most species-rich genera, and many Chaetoceros species are considered important primary producers. tenuissimus species complex that contained several clades, therefore the current taxonomic status of C. 0tpz, 3fgqsf, yxki, 8b8m, fhms, ir0f, osgg, hdux, uj5fk5, yjszif,