STORAGE AND GERMINATION OF CHARA OOSPORES.

abstract：:Temperature and nutrient supply are key factors that control phytoplankton ecophysiology, but their role is commonly investigated in isolation. Their combined effect on resource allocation, photosynthetic strategy, and metabolism remains poorly understood. To characterize the photosynthetic strategy and resource alloc...

journal_title：Journal of phycology

authors： Fernández-González C,Pérez-Lorenzo M,Pratt N,Moore CM,Bibby TS,Marañón E

更新日期：2020-06-01 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：:The effect of light, of 2 wavelengths, and of 3 temperatures on the uptake and evolution of O2 by the antarctic marine diatom, Fragilaria sublinearis, has been examined with mass spectrometry. The responses of this organism to light, in terms of O2 exchange, were qualitatively similar to those recorded by Hoch et al. ...

journal_title：Journal of phycology

authors： Bunt JS,van H Owens O,Hoch G

更新日期：1966-09-01 00:00:00

abstract：:Microbial eukaryotes may extinguish much of their nuclear phylogenetic history due to endosymbiotic/horizontal gene transfer (E/HGT). We studied E/HGT in 32,110 contigs of expressed sequence tags (ESTs) from the dinoflagellate Alexandrium tamarense (Dinophyceae) using a conservative phylogenomic approach. The vast maj...

journal_title：Journal of phycology

authors： Chan CX,Soares MB,Bonaldo MF,Wisecaver JH,Hackett JD,Anderson DM,Erdner DL,Bhattacharya D

更新日期：2012-10-01 00:00:00

abstract：:Ceratium furcoides is an invasive freshwater dinoflagellate that in the last three decades has expanded its geographic distribution in South America, being recently found in Paraná River floodplain (Argentina). Despite growing concern about the presence and impacts of this invader, information regarding genetic divers...

journal_title：Journal of phycology

authors： Accattatis V,Piccini C,Huber P,Metz S,Rueda E,Devercelli M

更新日期：2020-10-01 00:00:00

abstract：:Asexual reproduction by cloning may affect the genetic structure of populations, their potential to evolve, and, among foundation species, contributions to ecosystem functions. Macroalgae of the genus Fucus are known to produce attached plants only by sexual recruitment. Recently, however, clones of attached plants re...

journal_title：Journal of phycology

authors： Johannesson K,Johansson D,Larsson KH,Huenchuñir CJ,Perus J,Forslund H,Kautsky L,Pereyra RT

更新日期：2011-10-01 00:00:00

abstract：:Two new gynandrosporous species of Oedocladium from the United States were isolated into unialgal culture and comparative studies were made. The new taxa described, O. carolinianum sp. nov. and O. cir-ratum sp. nov., are morphologically very similar. Both species have an opercufate oogonium with inferior division, oos...

journal_title：Journal of phycology

authors： Beaney WD,Hoffman LR

更新日期：1968-09-01 00:00:00

abstract：:The gametes of chlorophytes can be divided into two morphological types (types α and β) based on the position of the mating structure relative to the flagella and eyespot. To elucidate the relationship between the morphological types and the sexes, we studied spatial relationships between the flagellar apparatus-eyesp...

journal_title：Journal of phycology

authors： Miyamura S,Nakayama T,Mitsuhashi F,Nagumo T,Sato T,Motomura T,Hori T

更新日期：2020-11-04 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：: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

authors： Lacour T,Sciandra A,Talec A,Mayzaud P,Bernard O

更新日期：2012-06-01 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：: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：: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：:Alaria grandifolia is recorded from Nova Scotia for the first time and is briefly compared with A. esculenta from this area. ...

journal_title：Journal of phycology

authors： Edelstein T,Craigie JS,McLachlan J

更新日期：1967-03-01 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

authors： MacDonald SM,Lee RW

更新日期：2016-08-01 00:00:00

abstract：:We tested how the availability of carbon and nitrogen determines both the production of Asparagopsis taxiformis (Delile) V. Trevis. and content of the two major halocarbons, bromoform and dibromoacetic acid. The halogenated secondary metabolites of Asparagopsis species are particularly interesting from an applied pers...

journal_title：Journal of phycology

authors： Mata L,Gaspar H,Santos R

更新日期：2012-02-01 00:00:00

abstract：:Alexandrium ostenfeldii (Paulsen) Balech and Tangen and A. peruvianum (Balech and B.R. Mendiola) Balech and Tangen are morphologically closely related dinoflagellates known to produce potent neurotoxins. Together with Gonyaulax dimorpha Biecheler, they constitute the A. ostenfeldii species complex. Due to the subtle d...

journal_title：Journal of phycology

authors： Kremp A,Tahvanainen P,Litaker W,Krock B,Suikkanen S,Leaw CP,Tomas C

更新日期：2014-02-01 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：: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：: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

authors： Stancheva R,Hall JD,Herburger K,Lewis LA,McCourt RM,Sheath RG,Holzinger A

更新日期：2014-10-01 00:00:00

abstract：:Currently, very few studies address the relationship between diversity and biomass/lipid production in primary producer communities for biofuel production. Basic studies on the growth of microalgal communities, however, provide evidence of a positive relationship between diversity and biomass production. Recent studie...

journal_title：Journal of phycology

authors： Stockenreiter M,Haupt F,Graber AK,Seppälä J,Spilling K,Tamminen T,Stibor H

更新日期：2013-10-01 00:00:00

abstract：:Although hypotheses have been proposed and developed to interpret the origins and functions of introns, substantial controversies remain about the mechanism of intron evolution. The availability of introns in the intermediate state is quite helpful for resolving this debate. In this study, a new strain of diatom (deno...

journal_title：Journal of phycology

authors： Han J,Zhang L,Wang P,Yang G,Wang S,Li Y,Pan K

更新日期：2018-02-01 00:00:00

abstract：:A multi-gene (SSU, LSU, psbA, and COI) molecular phylogeny of the family Corallinaceae (excluding the subfamilies Lithophylloideae and Corallinoideae) showed a paraphyletic grouping of six monophyletic clades. Pneophyllum and Spongites were reassessed and recircumscribed using DNA sequence data integrated with morpho-...

journal_title：Journal of phycology

authors： Caragnano A,Foetisch A,Maneveldt GW,Millet L,Liu LC,Lin SM,Rodondi G,Payri CE

更新日期：2018-06-01 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 Conchocelis phases of Porphyra perforata f. patens, P. cuneiformis and P. nereocystis were cultured from spores in a sterile artificial medium at 12 C and with 25 ft-c illumination for 10 hr daily. The cultures showed differences in duration of the vegetative phase, sporulation, liberation of spores, and the retur...

journal_title：Journal of phycology

authors： Krishnamurthy V

更新日期：1969-03-01 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：: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：:Macroalgal bloom-forming species occur in coastal systems worldwide. However, due to overlapping morphologies in some taxa, accurate taxonomic assessment and classification of these species can be quite challenging. We investigated the molecular and morphological characteristics of 153 specimens of bloom-forming Ulva ...

journal_title：Journal of phycology

authors： Guidone M,Thornber C,Wysor B,O'Kelly CJ

更新日期：2013-10-01 00:00:00

abstract：:Historically, the genus Calothrix included all noncolonial, tapered, heterocytous filaments within the cyanobacteria. However, recent molecular phylogenies show that "Calothrix" defined in this sense represents five distinct clades. The type species of Calothrix is marine, with solitary basal heterocytes, no akinetes,...

journal_title：Journal of phycology

authors： Berrendero Gómez E,Johansen JR,Kaštovský J,Bohunická M,Čapková K

更新日期：2016-08-01 00:00:00

abstract：:Thermoacidophilic cyanidia (Cyanidiales) are the primary photosynthetic eukaryotes in volcanic areas. These red algae also serve as important model organisms for studying life in extreme habitats. The global biodiversity and community structure of Cyanidiales remain unclear despite previous sampling efforts. Here, we ...

journal_title：Journal of phycology

authors： Hsieh CJ,Zhan SH,Lin Y,Tang SL,Liu SL

更新日期：2015-08-01 00:00:00