ALARM GRANDIFOLIA J. AGARDH FROM NOVA SCOTIA(1).

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：:In this study, we highlight the effects of methyl jasmonate (MeJa) on cystocarp development in the red macroscopic alga Grateloupia imbricata. In G. imbricata, jasmonate release is related to the reproductive state, as fertile thalli (i.e., those that have cystocarps) released significant amounts of this volatile comp...

journal_title：Journal of phycology

authors： Pilar GJ,Olegario BR,Rafael RR

更新日期：2016-12-01 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：: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：: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：: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：: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：: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：: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

authors： Kirkendale L,Saunders GW,Winberg P

更新日期：2013-02-01 00:00:00

abstract：:An adverse consequence of applying morphology-based taxonomic systems to catalog cyanobacteria, which generally are limited in the number of available morphological characters, is a fundamental underestimation of natural biodiversity. In this study, we further dissect the polyphyletic cyanobacterial genus Lyngbya and ...

journal_title：Journal of phycology

authors： Engene N,Paul VJ,Byrum T,Gerwick WH,Thor A,Ellisman MH

更新日期：2013-12-01 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：:Temporal and spatial variations in Sargassum ilicifolium thallus density and length were investigated on equatorial coral reefs in Singapore from November 2011 to October 2012. Thalli density varied little throughout the year, however, we found strong seasonal patterns in thallus length and identified temperature as t...

journal_title：Journal of phycology

authors： Low JKY,Fong J,Todd PA,Chou LM,Bauman AG

更新日期：2019-04-01 00:00:00

abstract：:Cysts belonging to the benthic dinoflagellate Bysmatrum subsalsum were recovered from palynologically treated sediments collected in the Alvarado Lagoon (southwestern Gulf of Mexico). The cysts are proximate, reflecting the features of the parent thecal stage, and their autofluorescence implies a dinosporin compositio...

journal_title：Journal of phycology

authors： Limoges A,Mertens KN,Ruíz-Fernández AC,de Vernal A

更新日期：2015-02-01 00:00:00

abstract：:Following exposure to long-wavelength ultraviolet radiation (UVA), some cyanobacteria produce the indole-alkaloid sunscreen scytonemin. The genomic region associated with scytonemin biosynthesis in the cyanobacterium Nostoc punctiforme includes 18 cotranscribed genes. A two-component regulatory system (Npun_F1277/Npun...

journal_title：Journal of phycology

authors： Naurin S,Bennett J,Videau P,Philmus B,Soule T

更新日期：2016-08-01 00:00:00

abstract：:The marine dinoflagellate, Glenoclinium foliaceum Stein, has been shown to contain fucoxanthin, instead of peridinin, as the major xanthophyll. In addition, 2 carotenes-β-carotene and a compound with spectral properties reminiscent of isomerized y-carotene-and 2 xanthophylls-diadinoxanthin and an unidentified compound...

journal_title：Journal of phycology

authors： Mandelli EF

更新日期：1968-12-01 00:00:00

abstract：:This study aimed to isolate quercetin (for the first time) from Anabaena aequalis Borge, which inhabits soil surface of Wadi El-Alaqui Protectorate located in Aswan city, Egypt. The isolated compound showed significant antibacterial activity against the gram-positive bacteria Sarcina maxima and Micrococcus kristinae, ...

journal_title：Journal of phycology

authors： Abdel-Raouf N,Ibraheem IB,Abdel-Tawab S,Naser YA

更新日期：2011-08-01 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：:Maintaining buoyancy with gas-filled floats (pneumatocysts) is essential for some subtidal kelps to achieve an upright stature and compete for light . However, as these kelps grow up through the water column, pneumatocysts are exposed to substantial changes in hydrostatic pressure, which could cause complications as i...

journal_title：Journal of phycology

authors： Liggan LM,Martone PT

更新日期：2018-10-01 00:00:00

abstract：:Blooms of Microcystis aeruginosa (Kützing) Kützing occur frequently in many freshwater ecosystems around the world, but the role of environmental factors in promoting the growth and determining the proportion of toxic and non-toxic strains still requires more investigation. In this study, four strains (toxic CPCC299 &...

journal_title：Journal of phycology

authors： Deblois CP,Juneau P

更新日期：2012-08-01 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：: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：:Two new varieties of Staurastrum (Desmidiaceae) are described from Sao Paulo, southern Brazil: St. polymorphum Bréb. var. itirapinense and St. quadrangulare Bréb. var. sanctipaulense. ...

journal_title：Journal of phycology

authors： de Mattos Bicudo CE

更新日期：1967-03-01 00:00:00

abstract：:Germination tests were conducted on 39 collections of Chara oospores stored under 4 different conditions for periods of approximately 4 yr. In general, storage of dried oospores at low temperatures (3 C) provided the most satisfactory means for long-term preservation of viable disseminules. Oospore germination zuas hi...

journal_title：Journal of phycology

authors： Proctor VI

更新日期：1967-06-01 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：: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：: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：:Some abiotic conditions are well known to play disproportionately large roles in shaping contemporary assemblages, yet their roles may not continue to have similar magnitudes of effect into the future. We tested whether forecasted levels of CO2 could alter the strength of influence of an abiotic factor (i.e., light in...

journal_title：Journal of phycology

authors： Russell BD,Passarelli CA,Connell SD

更新日期：2011-08-01 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：: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

authors： Bohunická M,Mareš J,Hrouzek P,Urajová P,Lukeš M,Šmarda J,Komárek J,Gaysina LA,Strunecký O

更新日期：2015-12-01 00:00:00

abstract：:Gracilariaceae has a worldwide distribution including numerous economically important species. We applied high-throughput sequencing to obtain organellar genomes (mitochondria and chloroplast) from 10 species of Gracilariaceae and, combined with published genomes, to infer phylogenies and compare genome architecture a...

journal_title：Journal of phycology

authors： Iha C,Grassa CJ,Lyra GM,Davis CC,Verbruggen H,Oliveira MC

更新日期：2018-12-01 00:00:00