TWO NEW SPECIES OF OEDOCLADIUM(1).

abstract：:We examined the diurnal expression of five genes encoding nitrogen-assimilating enzymes in the marine diatom Thalassiosira pseudonana (Hust.) Hasle et Heimdal following a transition from NH4 (+) - to NO3 (-) -supplemented media. The accumulation of nia transcripts (encoding nitrate reductase, NR) following the transit...

journal_title：Journal of phycology

authors： Brown KL,Twing KI,Robertson DL

更新日期：2009-04-01 00:00:00

abstract：:In culture tetraspores of the sporophyte (Trailliella intricata) of Sonnemaisonia hamifera gave rise to male gametophytes only. In the Gulf of St. Lawrence tetrasporangia occur annually during the autumn, but mature gametophytes have not been recorded. However, gametophytes with antheridia were found during the winter...

journal_title：Journal of phycology

authors： Chen LC,Edelstein T,McLachlan J

更新日期：1969-09-01 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

authors： Shukla SP,Kvíderová J,Adamec L,Elster J

更新日期：2020-04-01 00:00:00

abstract：:We investigated the effects of zinc or lead on growth and on exudation of fluorescent dissolved organic matter (FDOM) by the marine toxic dinoflagellate Alexandrium catenella (Whedon & Kofoid) Balech. The species was exposed to increasing free zinc (1.34 × 10(-7) M-3.98 × 10(-6) M) or lead (5.13 × 10(-9) M-1.82 × 10(-...

journal_title：Journal of phycology

authors： Herzi F,Jean N,Sakka Hlaili A,Mounier S

更新日期：2014-08-01 00:00:00

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 t...

journal_title：Journal of phycology

authors： Carvalho EL,Wallau GL,Rangel DL,Machado LC,Pereira AB,Victoria FC,Boldo JT,Pinto PM

更新日期：2017-08-01 00:00:00

abstract：:Global climate change is expected to alter the polar bioregions faster than any other marine environment. This study assesses the biodiversity of seaweeds and associated eukaryotic pathogens of an established study site in northern Baffin Island (72° N), providing a baseline inventory for future work assessing impacts...

journal_title：Journal of phycology

authors： Küpper FC,Peters AF,Shewring DM,Sayer MD,Mystikou A,Brown H,Azzopardi E,Dargent O,Strittmatter M,Brennan D,Asensi AO,van West P,Wilce RT

更新日期：2016-08-01 00:00:00

abstract：:The chloroplast pigments of 2 species of Chloro-monadophyceae have been examined. Both Gonyo-stomum semen and Vacuolaria virescens possessed only one chlorophyll, chlorophyll a. Gonyostomum contained 4 carotenoids, but not fucoxanthin and peridinin. Vacuolaria also possessed 4 carotenoids which have been identified as...

journal_title：Journal of phycology

authors： Chapman DJ,Haxo FT

更新日期：1966-06-01 00:00:00

abstract：:High-biomass blooms of the toxic dinoflagellate Pyrodinium bahamense occur most summers in Tampa Bay, Florida, USA, posing a recurring threat to ecosystem health. Like many dinoflagellates, P. bahamense forms immobile resting cysts that can be deposited on the seafloor-creating a seed bank that can retain the organism...

journal_title：Journal of phycology

authors： Lopez CB,Karim A,Murasko S,Marot M,Smith CG,Corcoran AA

更新日期：2019-08-01 00:00:00

abstract：:Invasions by nonindigenous macroalgal species (NIMS) potentially cause severe impacts on native species. We conducted a meta-analysis of 18 field-based manipulative experiments to quantify the direction and magnitude of impacts (Hedges effect size d, hereafter ES). We found significant small-to-medium negative effects...

journal_title：Journal of phycology

authors： Thomsen MS,Wernberg T,Tuya F,Silliman BR

更新日期：2009-08-01 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

authors： White DA,Polimene L,Llewellyn CA

更新日期：2011-10-01 00:00:00

abstract：:We investigated the relationship between daily growth rates and diel variation of carbon (C) metabolism and C to nitrogen (N) ratio under P- and N-limitation in the green algae Chlorella autotrophica. To do this, continuous cultures of C. autotrophica were maintained in a cyclostat culture system under 14:10 light:dar...

journal_title：Journal of phycology

authors： Ng WH,Liu H

更新日期：2015-02-01 00:00:00

abstract：:The establishment of epitypes (together with the emended diagnoses) for three species of Euglenaria Karnkowska, E. W. Linton et Kwiatowski [Eu. anabaena (Mainx) Karnkowska et E. W. Linton; Eu. caudata (Hübner) Karnkowska et E. W. Linton; and Eu. clavata (Skuja) Karnkowska et E. W. Linton] and two species of Euglena Eh...

journal_title：Journal of phycology

authors： Karnkowska-Ishikawa A,Milanowski R,Triemer RE,Zakryś B

更新日期：2012-06-01 00:00:00

abstract：:Over the last two decades, many studies on functional morphology have suggested that material properties of seaweed tissues may influence their fitness. Because hydrodynamic forces are likely the largest source of mortality for seaweeds in high wave energy environments, tissues with material properties that behave fav...

journal_title：Journal of phycology

authors： Demes KW,Carrington E,Gosline J,Martone PT

更新日期：2011-12-01 00:00:00

abstract：:A study of new Halimeda material available from the International Indian Ocean Expedition, and of type and other specimens not previously available to me, further indicated that Halimeda opuntia is a composite of species rather than a single species. The characteristics of some of its infraspecific taxa differ suffici...

journal_title：Journal of phycology

authors： Colinvaux LH

更新日期：1968-03-01 00:00:00

abstract：:Photosynthetic dinoflagellates are ecologically and biogeochemically important in marine and freshwater environments. However, surprisingly little is known of how this group acquires inorganic carbon or how these diverse processes evolved. Consequently, how CO2 availability ultimately influences the success of dinofla...

journal_title：Journal of phycology

authors： Raven JA,Suggett DJ,Giordano M

更新日期：2020-07-11 00:00:00

abstract：:Brevetoxin (PbTx) is a neurotoxic secondary metabolite of the dinoflagellate Karenia brevis. We used a novel, fluorescent BODIPY-labeled conjugate of brevetoxin congener PbTx-2 (B-PbTx) to track absorption of the metabolite into a variety of marine microbes. The labeled toxin was taken up and brightly fluoresced in li...

journal_title：Journal of phycology

authors： J Kramer B,J Bourdelais A,Kitchen SA,Taylor AR

更新日期：2019-02-01 00:00:00

abstract：:It is envisioned that mass algal cultivation for commercial biofuels production will entail the use of large raceway pond systems, which typically have shade-limited photosynthetic growth within depths of 20-30 cm. The attenuation of light and spectral qualities of red, green, and blue wavelengths in a 20-cm water col...

journal_title：Journal of phycology

authors： Hewes CD

更新日期：2016-04-01 00:00:00

abstract：:Sargassum muticum (Yendo) Fensholt is an invasive species that is firmly established on intertidal and subtidal rocky shores of Europe and the Pacific coast of North America. Local success and spread of S. muticum is thought to rely on its reproductive potential that seems dependent on exogenous factors like tidal and...

journal_title：Journal of phycology

authors： Monteiro C,Engelen AH,Serrão EA,Santos R

更新日期：2009-02-01 00:00:00

abstract：:Proliferating cell nuclear antigen (PCNA) plays critical roles in eukaryotic DNA replication and replication-associated processes. It is typically encoded by one or two gene copies (pcna) in eukaryotic genomes. Recently reported higher copy numbers of pcna in some dinoflagellates raised a question of how this gene has...

journal_title：Journal of phycology

authors： Hou Y,Ji N,Zhang H,Shi X,Han H,Lin S

更新日期：2019-02-01 00:00:00

abstract：:Light has been identified as one of the main factors affecting seaweed ecophysiology. We investigated the dependence of nutrient metabolism on sun and shade light conditions and whether episodes of upwelling of nutrient-rich subsuperficial water could reduce the summer nutrient limitation driving physiological changes...

journal_title：Journal of phycology

authors： Martínez B,Rico JM

更新日期：2008-02-01 00:00:00

abstract：:Fourier transform infrared (FTIR) spectrometry was used to study the spectral features of 12 eukaryotic and two prokaryotic species of microalgae. The algae were cultured in liquid media containing either NO3 (-) or NH4 (+) as the sole N-source; for the NH4 (+) treatment, the algae were subjected to short-term (24 h) ...

journal_title：Journal of phycology

authors： Domenighini A,Giordano M

更新日期：2009-04-01 00:00:00

abstract：:The fine structure of the marine coccolithophorid Hymenomonas (Cricosphaera) carterae (Braarud & Fagerland) Manton & Peterfi is reported. Details of the formation of the circular organic body scales are presented. Their formation is shown to be closely linked with the presence of tubules found within the Golgi cistern...

journal_title：Journal of phycology

authors： Pienaar RN

更新日期：1969-12-01 00:00:00

abstract：:Gene duplication is an important evolutionary process that allows duplicate functions to diverge, or, in some cases, allows for new functional gains. However, in contrast to the nuclear genome, gene duplications within the chloroplast are extremely rare. Here, we present the chloroplast genome of the photosynthetic pr...

journal_title：Journal of phycology

authors： Bennett MS,Shiu SH,Triemer RE

更新日期：2017-06-01 00:00:00

abstract：:Since the first phylogenetic study of the order Batrachospermales, Batrachospermum was shown to be paraphyletic. Subsequently, sections of the genus have been methodically investigated using DNA sequences and morphology in order to propose new genera and delineate species. Batrachospermum section Turfosa is the last s...

journal_title：Journal of phycology

authors： Vis ML,Lee J,Eloranta P,Chapuis IS,Lam DW,Necchi O Jr

更新日期：2020-08-01 00:00:00

abstract：:Despite worldwide proliferation of the genus Caulerpa and subsequent effects on benthic communities, little is known about the nutritional physiology of the Caulerpales. Here, we investigated the uptake rates of ammonium, nitrate, amino acids, and phosphate through the fronds and rhizoids + stolon, the internal transl...

journal_title：Journal of phycology

authors： Alexandre A,Santos R

更新日期：2020-06-01 00:00:00

abstract：:We studied cupric glutamate as a novel algicide for marine harmful algae and hexadecyltrimethyleamine bromide (HDTMAB) as an accelerant. Cupric glutamate had an excellent ability to inhibit the growth of Alexandrium sp. LC3, but the inhibition efficiency did not increase with higher cupric glutamate concentration. The...

journal_title：Journal of phycology

authors： Li H,Miao J,Cui F,Li G

更新日期：2008-12-01 00:00:00

abstract：:Astaxanthin-rich oil globules in Haematococcus pluvialis display rapid light-induced peripheral migration that is unique to this organism and serves to protect the photosynthetic system from excessive light. We observed rapid light-induced peripheral migration that is associated with chlorophyll fluorescence quenching...

journal_title：Journal of phycology

authors： Peled E,Pick U,Zarka A,Shimoni E,Leu S,Boussiba S

更新日期：2012-10-01 00:00:00

abstract：:Dispersal on floating seaweeds depends on availability, viability, and trajectories of the rafts. In the southern hemisphere, the bull kelp Durvillaea antarctica is one of the most common floating seaweeds, but phylogeographic studies had shown low connectivity between populations from continental Chile, which could b...

journal_title：Journal of phycology

authors： López BA,Macaya EC,Tala F,Tellier F,Thiel M

更新日期：2017-02-01 00:00:00

abstract：:In the Monterey Bay region of central California, the giant kelp Macrocystis pyrifera experiences broad fluctuations in wave forces, temperature, light availability, nutrient availability, and seawater carbonate chemistry, all of which may impact their productivity. In particular, current velocities and light intensit...

journal_title：Journal of phycology

authors： Drobnitch ST,Nickols K,Edwards M

更新日期：2017-02-01 00:00:00

abstract：:We studied group I introns in sterile cultures of selected groups of lichen photobionts, focusing on Trebouxia species associated with Xanthoria s. lat. (including Xanthomendoza spp.; lichen-forming ascomycetes). Group I introns were found inserted after position 798 (Escherichia coli numbering) in the large subunit (...

journal_title：Journal of phycology

authors： Nyati S,Bhattacharya D,Werth S,Honegger R

更新日期：2013-12-01 00:00:00