INTER- AND INTRASPECIFIC RELATIONSHIPS BETWEEN NUCLEAR DNA CONTENT AND CELL SIZE IN SELECTED MEMBERS OF THE CENTRIC DIATOM GENUS THALASSIOSIRA (BACILLARIOPHYCEAE)(1).

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：: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：: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：:Cytological changes induced by nitrate or phosphate limitation were reproducible and readily visible by phase contrast microscopy in Coscinodiscus wailesii, Ditylum brightwellii, Rhizosolenia hebetata f. semi-spina, Skeletonema costatum, and Stephanopyxis turris. These effects included changes in chromatophore number ...

journal_title：Journal of phycology

authors： Holmes RW

更新日期：1966-12-01 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：:Here, we established the cyst-motile stage relation-ship for Spiniferites pachydermus through incubation of cysts with a characteristically microreticulate/perforate surface isolated from Izmir Bay in the eastern Aegean Sea of the eastern Mediterranean. The morphology of the motile stage was similar to Gonyaulax spini...

journal_title：Journal of phycology

authors： Mertens KN,Aydin H,Uzar S,Takano Y,Yamaguchi A,Matsuoka K

更新日期：2015-06-01 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：: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：:To evaluate the quantitative and qualitative changes in amino acids related to internal nitrogen content and growth rate of Ulva ohnoi, the supply of nitrogen to outdoor cultures of the seaweed was manipulated by simultaneously varying water nitrogen concentrations and renewal rate. Both internal nitrogen content and ...

journal_title：Journal of phycology

authors： Angell AR,Mata L,de Nys R,Paul NA

更新日期：2014-02-01 00:00:00

abstract：:Diatoms are perhaps the most diverse lineage of eukaryotic algae, with their siliceous cell wall and diplontic life history often considered to have played important roles in their extraordinary diversification. The characteristic diminution of the diatom cell wall over the course of vegetative growth provides a relia...

journal_title：Journal of phycology

authors： Kessenich CR,Ruck EC,Schurko AM,Wickett NJ,Alverson AJ

更新日期：2014-12-01 00:00:00

abstract：:Pyropia yezoensis (Ueda) M. S. Hwang et H. G. Choi (previously called Porphyra yezoensis) is an economically important alga. The blades generated from conchospores are genetic chimeras, which are not suitable for genetic similarity analysis. In this study, two types of blades from a single filament of P. yezoensis spo...

journal_title：Journal of phycology

authors： He L,Zhu J,Lu Q,Niu J,Zhang B,Lin A,Wang G

更新日期：2013-06-01 00:00:00

abstract：:CO2 levels in freshwater systems can fluctuate widely, potentially influencing photosynthetic rates and growth of phytoplankton. Given the right conditions, this can lead to bloom formation and affect water quality. This study investigated the acquisition of dissolved inorganic carbon (DIC) by six species of microalga...

journal_title：Journal of phycology

authors： Lines T,Beardall J

更新日期：2018-10-01 00:00:00

abstract：:Since the 1970s, Puget Sound, Washington State, USA, has experienced an increase in detections of paralytic shellfish toxins (PSTs) in shellfish due to blooms of the harmful dinoflagellate Alexandrium. Natural patterns of climate variability, such as the Pacific Decadal Oscillation (PDO), and changes in local environm...

journal_title：Journal of phycology

authors： Feifel KM,Moore SK,Horner RA

更新日期：2012-06-01 00:00:00

abstract：:Dissolved organic carbon (DOC) is an important source of carbon and energy for microbes, but whether it can be used by phytoplankton has not been systematically studied, and the underlying molecular metabolism remains poorly understood. Here, we investigated the ability of phytoplankton to utilize glycerol as a repres...

journal_title：Journal of phycology

authors： Wang C,Baseler S,Lin S

更新日期：2020-10-01 00:00:00

abstract：:Takayama helix is a mixotrophic dinoflagellate that can feed on diverse algal prey. We explored the effects of light intensity and water temperature, two important physical factors, on its autotrophic and mixotrophic growth rates when fed on Alexandrium minutum CCMP1888. Both the autotrophic and mixotrophic growth rat...

journal_title：Journal of phycology

authors： Ok JH,Jeong HJ,Lim AS,You JH,Kang HC,Kim SJ,Lee SY

更新日期：2019-10-01 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：:Chroococcidiopsis Geitler (Geitler 1933) is a genus of cyanobacteria containing desiccation and radiation resistant strains. Members of the genus live in habitats ranging from hot and cold deserts to fresh and saltwater environments. Morphology and cell division pattern have historically been used to define the genus....

journal_title：Journal of phycology

authors： Cumbers J,Rothschild LJ

更新日期：2014-06-01 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：: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

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：:Worldwide, macroalgae have invaded near-shore marine ecosystems. However, their haplodiplontic life cycles have complicated efforts to predict patterns of growth and spread, particularly since most theoretical predictions are derived from diplontic taxa (i.e., animals). To complete one revolution of the life cycle, tw...

journal_title：Journal of phycology

authors： Krueger-Hadfield SA,Ryan WH

更新日期：2020-08-01 00:00:00

abstract：:Exopolymer particles are found throughout the ocean and play a significant biogeochemical role in carbon cycling. Transparent exopolymer particles (TEP) are composed of acid polysaccharides, and Coomassie staining particles (CSP) are proteins. TEPs have been extensively studied in the ocean, while CSP have been largel...

journal_title：Journal of phycology

authors： Thornton DCO,Chen J

更新日期：2017-04-01 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：:Dissolved organic carbon (DOC) released by macroalgae is important in the context of coral reef degradation as it contributes to coral mortality by promoting bacterial metabolism on the coral surface. Using experimental carbon dioxide (CO2 ) manipulations in outdoor flow-through tanks, we found that seawater CO2 enric...

journal_title：Journal of phycology

authors： Diaz-Pulido G,Barrón C

更新日期：2020-08-01 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

authors： Majewska R,Taylor JC,Goosen WE

更新日期：2020-12-19 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：:Three species of tropical oceanic phytoplankton were isolated from two locations in the eastern Pacific Ocean. Unialgal cultures were maintained in an enriched seawater medium. The effects of temperature, and, in separate experiments, illuminance, on the exponential cell division rates of those algae were investigated...

journal_title：Journal of phycology

authors： Thomas WH

更新日期：1966-03-01 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：: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：: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

authors： Darienko T,Pröschold T

更新日期：2019-04-01 00:00:00