Abstract:
:Antarctica is one of the most difficult habitats for sustaining life on earth; organisms that live there have developed different strategies for survival. Among these organisms is the green alga Prasiola crispa, belonging to the class Trebouxiophyceae. The literature on P. crispa taxonomy is scarce, and many gaps in the evolutionary relationship with its closest relatives remain. The goal of this study was to analyze the evolutionary relationships between P. crispa and other green algae using plastid and mitochondrial genomes. In addition, we analyzed the synteny conservation of these genomes of P. crispa with those of closely related species. Based on the plastid genome, P. crispa grouped with Prasiolopsis sp. SAG 84.81, another Trebouxiophyceaen species from the Prasiola clade. Based on the mitochondrial genome analysis, P. crispa grouped with other Trebouxiophyceaen species but had a basal position. The structure of the P. crispa chloroplast genome had low synteny with Prasiolopsis sp. SAG 84.81, despite some conserved gene blocks. The same was observed in the mitochondrial genome compared with Coccomyxa subellipsoidea C-169. We were able to establish the phylogenetic position of P. crispa with other species of Trebouxiophyceae using its genomes. In addition, we described the plasticity of these genomes using a structural analysis. The plastid and mitochondrial genomes of P. crispa will be useful for further genetic studies, phylogenetic analysis and resource protection of P. crispa as well as for further phylogenetic analysis of Trebouxiophyceaen green algae.
journal_name
J Phycoljournal_title
Journal of phycologyauthors
Carvalho EL,Wallau GL,Rangel DL,Machado LC,Pereira AB,Victoria FC,Boldo JT,Pinto PMdoi
10.1111/jpy.12541subject
Has Abstractpub_date
2017-08-01 00:00:00pages
908-915issue
4eissn
0022-3646issn
1529-8817journal_volume
53pub_type
杂志文章abstract::Characeae (Charophyceae, Charophyta) contains two tribes with six genera: tribe Chareae with four genera and tribe Nitelleae, which includes Tolypella and Nitella. This paper uses molecular and morphological data to elucidate the phylogeny of Tolypella species in North America. In the most comprehensive taxonomic trea...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/jpy.12229
更新日期:2014-10-01 00:00:00
abstract::The broadly defined genus Chaetophora consisted of species with minute, uniseriate branching filaments enveloped in soft or firm mucilage forming macroscopic growths that are spherical, hemispherical, and tubercular or arbuscular, growing epiphytically on freshwater aquatic plants and other submerged surfaces in stand...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/jpy.12803
更新日期:2019-02-01 00:00:00
abstract::Ulva Linnaeus (Ulvophyceae, Ulvales) is a genus of green algae widespread in different aquatic environments. Members of this genus show a very simple morphology and a certain degree of phenotypic plasticity, heavily influenced by environmental conditions, making difficult the delineation of species by morphological fe...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/jpy.12005
更新日期:2012-12-01 00:00:00
abstract::New strains of a wall-less unicellular volvocalean flagellate were isolated from a freshwater environment in Japan. Observations of the alga, described here as Hapalochloris nozakii Nakada, gen. et sp. nov., were made using light, fluorescence, and electron microscopy. Each vegetative cell had two flagella, four contr...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/jpy.12484
更新日期:2017-02-01 00:00:00
abstract::Several unknown mycosporine-like amino acids (MAAs) have been previously isolated from some cultured species of toxic dinoflagellates of the Alexandrium genus (Dinophyceae). One of them, originally called M-333, was tentatively identified as a shinorine methyl ester, but the precise nature of this compound is still un...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/jpy.12076
更新日期:2013-08-01 00:00:00
abstract::The dinophysoid dinoflagellates are currently divided into three families: Amphisoleniaceae, Dinophysaceae (mainly Dinophysis Ehrenb. and Phalacroma F. Stein), and Oxyphysaceae, the latter including only one member, Oxyphysis oxytoxoides Kof. Phalacroma has been recently reinstated separately from Dinophysis, and its ...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/j.1529-8817.2011.00964.x
更新日期:2011-04-01 00:00:00
abstract::A previously unknown species of kelp was collected on Kagamil Island, Aleutian Islands. The species can be easily distinguished from any known laminarialean alga: the erect sporophytic thallus is composed of a thin lanceolate blade attaining ∼2 m in height and ∼0.50 m in width, without midrib, and the edge of the blad...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/j.1529-8817.2008.00548.x
更新日期:2008-08-01 00:00:00
abstract::Galactose-1-phosphate uridylyltransferase (GALT) catalyzes the reversible conversion of glucose-1-phosphate and UDP-galactose to galactose-1-phosphate and UDP-glucose. This enzyme is also responsible for one of the biochemical steps that produce the precursors of agar and agarose. In this study, we report the molecula...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/j.1529-8817.2011.01105.x
更新日期:2012-02-01 00:00:00
abstract::The photoprotective response in the dinoflagellate Glenodinium foliaceum F. Stein exposed to ultraviolet-A (UVA) radiation (320-400 nm; 1.7 W · m(2) ) and the effect of nitrate and phosphate availability on that response have been studied. Parameters measured over a 14 d growth period in control (PAR) and experimental...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/j.1529-8817.2011.01046.x
更新日期:2011-10-01 00:00:00
abstract::Twenty years ago an Arctic cryptophyte was isolated from Baffin Bay and given strain number CCMP2045. Here, it was described using morphology, water- and non-water soluble pigments and nuclear-encoded SSU rDNA. The influence of temperature, salinity, and light intensity on growth rates was also examined. Microscopy re...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/jpy.12766
更新日期:2018-10-01 00:00:00
abstract::New miniaturized techniques for multiplying microalgae and estimating their phytohormone production were developed; in these methods, the strains to be tested are cultivated in microtitre plates, and the phytohormones in suspensions of the cultures are measured by direct ELISAs. Specific and sensitive ELISAs for deter...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/j.1529-8817.2008.00615.x
更新日期:2009-02-01 00:00:00
abstract::As part of a long-term study on the biology and ecology of the intertidal kelp Lessonia nigrescens Bory, we report on the occurrence of gall development on this alga, identified the possible causal agent, and assessed the extent of the phenomenon in two wild stands of the host. Our results showed that galls affecting ...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/j.1529-8817.2009.00749.x
更新日期:2009-12-01 00:00:00
abstract::The molecular structure of the carotenoid lactoside P457, (3S,5R,6R,3'S,5'R,6'S)-13'-cis-5,6-epoxy-3',5'-dihydroxy-3-(β-d-galactosyl-(1→4)-β-d-glucosyl)oxy-6',7'-didehydro-5,6,7,8,5',6'-hexahydro-β,β-caroten-20-al, was confirmed by spectroscopic methods using Symbiodinium sp. strain NBRC 104787 cells isolated from a s...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/j.1529-8817.2012.01219.x
更新日期:2012-12-01 00:00:00
abstract::The ultrastructural changes which occurred during senescence in the stationary phase of growth of the unicellular green alga Spongiochloris typica were observed. The cell wall consists of a membrane like primary wall and an inner secondary wall which becomes progressively thickened with age of the culture. During sene...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/j.1529-8817.1968.tb04696.x
更新日期:1968-12-01 00:00:00
abstract::Statistical growth rate modelling can be applied in a variety of ecological and biotechnological applications. Such models are frequently based on Monod or Droop equations and, especially for the latter, require reliable determination of model input parameters such as C:N quotas. Besides growth rate modelling, a C:N q...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/jpy.12858
更新日期:2019-06-01 00:00:00
abstract::It has been shown that marine algae produce the compatible solute dimethylsulfoniopropionate (DMSP) from methionine (Met) via four enzymatic reactions in which the third step, synthesis of 4-dimethylsulfonio-2-hydroxy-butyrate (DMSHB) from 4-methylthio-2-hydroxybutyrate (MTHB), is the committing step. However, regulat...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/j.1529-8817.2011.00977.x
更新日期:2011-06-01 00:00:00
abstract::The green algal genus Ulva includes a speciose group of marine macroalgae inhabiting shallow seas worldwide. Although algal blooms in Asia highlight the opportunistic nature of several "nuisance" species, recent research clearly reveals important positive benefits of Ulva. Applied research requires accurate, reliable,...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/jpy.12016
更新日期:2013-02-01 00:00:00
abstract::Polytomella is a genus of colorless green algae in the Reinhardtinia clade of the Chlamydomonadales, which has proven useful for a broad range of studies particularly those exploring the evolutionary loss of photosynthesis and mitochondrial genomics/biochemistry. Although 13 Polytomella strain accessions are currently...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/jpy.12430
更新日期:2016-08-01 00:00:00
abstract::Partitioning of the carbon (C) fixed during photosynthesis between neutral lipids (NL) and carbohydrates was investigated in Isochrysis sp. (Haptophyceae) in relation to its nitrogen (N) status. Using batch and nitrate-limited continuous cultures, we studied the response of these energy reserve pools to both condition...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/j.1529-8817.2012.01154.x
更新日期:2012-06-01 00:00:00
abstract::Central America is one of the most important biodiversity hot spots in the world, and Costa Rican microbial communities from thermal springs are the best characterized in the isthmus. Miravalles is an inactive quaternary stratovolcano, and the Rincón de la Vieja is a unique active volcano, in whose slopes diverse hydr...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/jpy.13077
更新日期:2020-09-30 00:00:00
abstract::While rigorous techniques have usually been used to generate phylogenetic trees from molecular data, morphological analysis has sometimes been more informal. A recent example was a study of the evolution of the fultoportula in the diatom order Thalassiosirales (Kaczmarska et al. 2006). Phylogeny was inferred using mod...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/j.1529-8817.2008.00522.x
更新日期:2008-06-01 00:00:00
abstract::Members of the morphologically unusual cyanobacterial family Gomontiellaceae were studied using a polyphasic approach. Cultured strains of Hormoscilla pringsheimii, Starria zimbabweënsis, Crinalium magnum, and Crinalium epipsammum were thoroughly examined, and the type specimen of the family, Gomontiella subtubulosa, ...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/jpy.12354
更新日期:2015-12-01 00:00:00
abstract::A giant form of Anadyomene, most similar to Anadyomene pavonina (J. Agardh) Wille, a rare and diminutive alga endemic to Florida, appeared as up to 10 m long net-like strands covering 10%-80% of a 0.5 km region of the 25-50 m deep Belizean outer reef slope where none had been present up to 12 months earlier. This new ...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/j.1529-8817.2011.01108.x
更新日期:2012-02-01 00:00:00
abstract::Cyanobacteria occupy many niches within terrestrial, planktonic, and benthic habitats. The diversity of habitats colonized, similarity of morphology, and phenotypic plasticity all contribute to the difficulty of cyanobacterial identification. An unknown marine filamentous cyanobacterium was isolated from an aquatic an...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/jpy.12490
更新日期:2017-02-01 00:00:00
abstract::Euglena obtusa F. Schmitz possesses novel pellicle surface patterns, including the greatest number of strips (120) and the most posterior subwhorls of strip reduction in any euglenid described so far. Although the subwhorls form a mathematically linear pattern of strip reduction, the pattern observed here differs from...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/j.1529-8817.2007.00447.x
更新日期:2008-02-01 00:00:00
abstract::Due to their ecological, physiological, and molecular adaptations to low and varying temperatures, as well as varying seasonal irradiances, polar non-marine eukaryotic microalgae could be suitable for low-temperature biotechnology. Adaptations include the synthesis of compounds from different metabolic pathways that p...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/jpy.12953
更新日期:2020-04-01 00:00:00
abstract::Chlorella-like coccoid green algae are widely distributed in almost all terrestrial habitats and belong to different lineages of the Chlorophyceae and Trebouxiophyceae. The Watanabea clade of the Trebouxiophyceae shows a high genetic biodiversity. Re-investigation of the authentic strain of the rarely found W. renifor...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/jpy.12830
更新日期:2019-04-01 00:00:00
abstract::Coralline red algae play a key role in the ecology of near shore marine ecosystems and are increasingly being used to study the effects of climate change in the marine environment. Corallines are very difficult to identify to species, and even to genus, using morpho-anatomy, likely complicating studies of their ecolog...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/jpy.12205
更新日期:2014-08-01 00:00:00
abstract::d-Mannose and related derivatives, e.g., d-glucosa-mine and 2-deoxy- journal_title:Journal of phycology pub_type: 杂志文章 doi:10.1111/j.1529-8817.1968.tb04688.x 更新日期:1968-06-01 00:00:00
abstract::The inability to thoroughly examine diatom type material existing only in resin-mounted permanent slides is a common frustration for diatomologists. Here, we present an efficient, inexpensive, and straightforward technique to extract siliceous exoskeletons of diatoms from permanent slides prepared with commonly used m...
journal_title:Journal of phycology
pub_type: 杂志文章
doi:10.1111/jpy.13122
更新日期:2020-12-19 00:00:00