abstract：:In Japan, the bloom seasons of two toxic species, namely, Alexandrium catenella (Whedon et Kof.) Balech and Alexandrium tamiyavanichii Balech, sometimes overlap with those of three nontoxic Alexandrium species, namely, Alexandrium affine (H. Inouye et Fukuyo) Balech, Alexandrium fraterculus (Balech) Balech, and Alexan...

journal_title：Journal of phycology

authors： Nagai S

更新日期：2011-06-01 00:00:00

abstract：:To study the effect of different radiation conditions on sporogenesis of Laminaria digitata (Huds.) J. V. Lamour., excised disks were induced to form sporangia under PAR (P), PAR + ultraviolet-A (UVA) (PA), and PAR + UVA + ultraviolet-B (UVB) (PAB) conditions in the laboratory. Vitality of meiospores, released from so...

journal_title：Journal of phycology

authors： Gruber A,Roleda MY,Bartsch I,Hanelt D,Wiencke C

更新日期：2011-06-01 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

authors： Ito T,Asano Y,Tanaka Y,Takabe T

更新日期：2011-06-01 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

authors： Gómez F,López-García P,Moreira D

更新日期：2011-04-01 00:00:00

abstract：:Nearly one-fourth of the lichen-forming fungi associate with trentepohlialean algae, yet their genetic diversity remains unknown. Recent work focusing on free-living trentepohlialean algae has provided a phylogenetic context within which questions regarding the lichenization of these algae can be asked. Here, we conce...

journal_title：Journal of phycology

authors： Nelsen MP,Plata ER,Andrew CJ,Lücking R,Lumbsch HT

更新日期：2011-04-01 00:00:00

abstract：:A small siliceous species of marine phytoplankton, order Parmales (Heterokonta), was isolated and characterized for the first time with the aid of a fluorescent silicon tracer 2-(4-pyridyl)-5-([4-(2-dimethylaminoethylaminocarbamoyl)-methoxy]phenyl)oxazole (PDMPO). This dye was easily detected by clear fluorescence in ...

journal_title：Journal of phycology

authors： Ichinomiya M,Yoshikawa S,Kamiya M,Ohki K,Takaichi S,Kuwata A

更新日期：2011-02-01 00:00:00

abstract：:The quantitative characterization of the ecology of individual phytoplankton taxa is essential for model resolution of many aspects of aquatic ecosystems. Existing literature cannot directly parameterize all phytoplankton taxa of interest, as many traits and taxa have not been sampled. However, valuable clues on the v...

journal_title：Journal of phycology

authors： Bruggeman J

更新日期：2011-02-01 00:00:00

abstract：:Most mitochondrial genomes in the green algal phylum Chlorophyta are AT-rich, circular-mapping DNA molecules. However, mitochondrial genomes from the Reinhardtii clade of the Chlorophyceae lineage are linear and sometimes fragmented into subgenomic forms. Moreover, Polytomella capuana, from the Reinhardtii clade, has ...

journal_title：Journal of phycology

authors： Borza T,Redmond EK,Laflamme M,Lee RW

更新日期：2009-12-01 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

authors： Thomas D,Beltrán J,Flores V,Contreras L,Bollmann E,Correa JA

更新日期：2009-12-01 00:00:00

abstract：:Heterotrophic and anaerobic microalgae are of significance in both basic research and industrial application. A microalga strain was isolated from a wastewater treatment pond and identified as Chlorella sorokiniana Shihira et W. R. Krauss GXNN01 in terms of morphology, physiology, and phylogeny. The strain grows rapid...

journal_title：Journal of phycology

authors： Qiao H,Wang G,Zhang X

更新日期：2009-10-01 00:00:00

abstract：:Twelve species, representing 12 families of the chrysophytes sensu lato, were tested for their ability to take up inorganic carbon. Using the pH-drift technique, CO2 compensation points generally varied between 1 and 20 μmol · L(-1) with a mean concentration of 5 μmol · L(-1) . Neither pH nor alkalinity affected the C...

journal_title：Journal of phycology

authors： Maberly SC,Ball LA,Raven JA,Sültemeyer D

更新日期：2009-10-01 00:00:00

abstract：:The marine filamentous nonheterocystous nitrogen-fixing cyanobacterium Lyngbya aestuarii (F. K. Mert.) Liebman ex Gomont CCY 9616 was grown under diazotrophic and nondiazotrophic conditions and under an alternating 16:8 light:dark (L:D) regime. Nitrogenase activity appeared just before the onset of the dark period, re...

journal_title：Journal of phycology

authors： Ferreira D,Stal LJ,Moradas-Ferreira P,Mendes MV,Tamagnini P

更新日期：2009-08-01 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：:Nitzschia sublinearis Hustedt and N. pura Hustedt are common oligosaprobic freshwater diatom species that frequently occur in diatom inventories, thus being important in water quality studies. Both are considered as species with overlapping diagnostic criteria in several floras, which is typical of the whole genus Nit...

journal_title：Journal of phycology

authors： Hlúbiková D,Blanco S,Falasco E,Gomà J,Hoffmann L,Ector L

更新日期：2009-06-01 00:00:00

abstract：:Although light and salt stresses are known to enhance the biosynthesis of astaxanthin in certain green algae, the mechanism of their action remains largely unknown. Here we report the regulation of the genes encoding phytoene desaturase (PDS), carotenoid hydroxylase (CHYb), and carotenoid ketolase (BKT) in the green a...

journal_title：Journal of phycology

authors： Li Y,Huang J,Sandmann G,Chen F

更新日期：2009-06-01 00:00:00

abstract：:The role of dissolved inorganic phosphorus (DIP) in promoting dominance of the toxic nitrogen (N)-fixing cyanobacterium Cylindrospermopsis raciborskii (Wołosz.) Seenayya et Subba Raju was examined in a subtropical water reservoir, Lake Samsonvale (=North Pine reservoir). A novel in situ bioassay approach, using dialys...

journal_title：Journal of phycology

authors： Posselt AJ,Burford MA,Shaw G

更新日期：2009-06-01 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：: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：:Solar ultraviolet radiation (UVR, 280-400 nm) is known to affect macroalgal physiology negatively, while nutrient availability may affect UV-absorbing compounds (UVACs) and sensitivity to UVR. However, little is known about the interactive effects of UVR and nitrate availability on macroalgal growth and photosynthesis...

journal_title：Journal of phycology

authors： Zheng Y,Gao K

更新日期：2009-04-01 00:00:00

abstract：:Centroceras clavulatum (C. Agardh) Montagne is widely reported as being a prime example of a cosmopolitan red algal species. Instead, C. clavulatum is here determined as restricted to northern Chile, Peru, southern California, southern Australia, and New Zealand. Specimens identified using the current species concept ...

journal_title：Journal of phycology

authors： Won BY,Cho TO,Fredericq S

更新日期：2009-02-01 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

authors： Jirásková D,Poulíčková A,Novák O,Sedláková K,Hradecká V,Strnad M

更新日期：2009-02-01 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：:Species currently classified within the cyanobacterial genus Microcoleus were determined to fall into two distinct clades in a 16S rDNA phylogeny, one containing taxa within the Oscillatoriaceae, the other containing taxa within the Phormidiaceae. The two lineages were confirmed in an analysis of the 16S-23S internal ...

journal_title：Journal of phycology

authors： Siegesmund MA,Johansen JR,Karsten U,Friedl T

更新日期：2008-12-01 00:00:00

abstract：:The plastidic glyceraldehyde-3-phosphate dehydrogenase (GAPDH) catalyzes the only reductive step in the Calvin cycle and exists as different forms of which GapC1 enzyme is present in chromalveolates, such as diatoms. Biochemical studies on diatoms are still fragmentary, and, thus, in this report, GAPDH from the freshw...

journal_title：Journal of phycology

authors： Erales J,Gontero B,Maberly SC

更新日期：2008-12-01 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：:Macromolecular variability in microalgal populations subject to different nutrient environments was investigated, using the chlorophyte alga Scenedesmus quadricauda (Turpin) Bréb. as a model organism. The large size of the four-cell coenobia in the strain used in this study (∼35 μm diameter) conveniently allowed high ...

journal_title：Journal of phycology

authors： Heraud P,Stojkovic S,Beardall J,McNaughton D,Wood BR

更新日期：2008-10-01 00:00:00

abstract：:Brown tides of the marine pelagophyte Aureococcus anophagefferens Hargraves et Sieburth have been investigated extensively for the past two decades. Its growth is fueled by a variety of nitrogen (N) compounds, with dissolved organic nitrogen (DON) being particularly important during blooms. Characterization of a cDNA ...

journal_title：Journal of phycology

authors： Berg GM,Shrager J,Glöckner G,Arrigo KR,Grossman AR

更新日期：2008-10-01 00:00:00

abstract：:In batch cultures of four Mediterranean strains (from France, Italy, and Spain) of Alexandrium catenella (Whedon et Kof.) Balech growing on a daily light cycle, ammonium and urea uptake were estimated by the (15) N tracer technique. Ammonium uptake could be described by Michaelis-Menten kinetics along a substrate grad...

journal_title：Journal of phycology

authors： Jauzein C,Collos Y,Garcés E,Vila M,Maso M

更新日期：2008-10-01 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

authors： Kawai H,Hanyuda T,Lindeberg M,Lindstrom SC

更新日期：2008-08-01 00:00:00

abstract：:Biotic factors that affect phytoplankton physiology and behavior are not well characterized but probably play a crucial role in regulating their population dynamics in nature. We document evidence that some marine bacteria can decrease the swimming speed of motile phytoplankton through the release of putative protease...

journal_title：Journal of phycology

authors： Mayali X,Franks PJ,Tanaka Y,Azam F

更新日期：2008-08-01 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

authors： Theriot EC

更新日期：2008-06-01 00:00:00

abstract：:To investigate the changes in the morphology and polysaccharide content of Microcystis aeruginosa (Kütz.) Kütz. during flagellate grazing, cultures of M. aeruginosa were exposed to grazing Ochromonas sp. for a period of 9 d under controlled laboratory conditions. M. aeruginosa responded actively to flagellate grazing ...

journal_title：Journal of phycology

authors： Yang Z,Kong F,Shi X,Zhang M,Xing P,Cao H

更新日期：2008-06-01 00:00:00

abstract：:Population dynamics of Noctiluca scintillans (Macartney) Kof. et Swezy containing the photosynthetic endosymbiont Pedinomonas noctilucae (Subrahman.) Sweeney was investigated in relation to environmental conditions in the upper Gulf of Thailand. A clear association was observed between the abundance of N. scintillans ...

journal_title：Journal of phycology

authors： Sriwoon R,Pholpunthin P,Lirdwitayaprasit T,Kishino M,Furuya K

更新日期：2008-06-01 00:00:00

abstract：:A new marine benthic, sand-dwelling Prorocentrum species from the temperate region of the Pacific coast of British Columbia, Canada, is described using LM and EM and molecular phylogenetic analyses. The cells have a broad oval shape, 40.0-55.0 μm long and 30.0-47.5 μm wide, and a wide U-shaped periflagellar area on th...

journal_title：Journal of phycology

authors： Hoppenrath M,Leander BS

更新日期：2008-04-01 00:00:00

abstract：:The enormous species diversity of diatoms correlates with the remarkable range of cell sizes in this group. Nuclear DNA content relates fundamentally to cell volume in other eukaryotic cells. The relationship of cell volume to G1 DNA content was determined among selected members of the genus Thalassiosira, one of the ...

journal_title：Journal of phycology

authors： Von Dassow P,Petersen TW,Chepurnov VA,Virginia Armbrust E

更新日期：2008-04-01 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

authors： Esson HJ,Leander BS

更新日期：2008-02-01 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：:Sequences of the gene encoding the large subunit of RUBISCO (rbcL) for 30 genera in the six currently recognized families of conjugating green algae (Desmidiaceae, Gonatozygaceae, Mesotaeniaceae, Peniaceae, and Zygnemataceae) were analyzed using maximum parsimony and maximum likelihood; bootstrap replications were per...

journal_title：Journal of phycology

authors： McCourt RM,Karol KG,Bell J,Helm-Bychowski KM,Grajewska A,Wojciechowski MF,Hoshaw RW

更新日期：2000-08-26 00:00:00

abstract：:Prochlorococcus is a ubiquitous marine oxyphotobacterium characterized by the presence of DV-chl a and b. In addition, the type strain Prochlorococcus marinus Chisholm et al. CCMP 1375 (or SS120), an isolate from the Sargasso Sea, contains low levels of an unusual phycoerythrin. Until now, it has been unclear if phyco...

journal_title：Journal of phycology

authors： Penno S,Campbell L,Hess WR

更新日期：2000-08-26 00:00:00

abstract：:Toxicities of cadmium (Cd) and zinc (Zn) to the green alga Selenastrum capricornutum Printz were determined over 72 h in defined synthetic media buffered by citrate (FRAQCIT ; [citrate] = 100 μM or 5 μM) or nitrilotriacetate (FRAQNTA ; [NTA] = 5 μM). Algal sensitivity to free Cd2 + or free Zn2 + in FRAQCIT was much hi...

journal_title：Journal of phycology

authors： Errécalde O,Campbell PGC

更新日期：2000-06-01 00:00:00