Benthic marine algal flora of the north shore of Prince Edward Island (Gulf of St. Lawrence), Canada

Bird, C. J.; Greenwell, M.; McLachlan, J.

doi:10.1016/0304-3770(83)90078-5

Cited by 31 publications

(23 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Indeed, phytochrome is absent in the rhodophyte (red alga) Chondrus crispus, found from intertidal regions to ∼20-m depth (20,21). Similarly, the green alga Chlamydomonas reinhardtii lacks phytochrome despite retaining the ability to synthesize the bilin chromophore phycocyanobilin (PCB) (22).…”

mentioning

confidence: 99%

Eukaryotic algal phytochromes span the visible spectrum

Rockwell

Duanmu

Martin

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

163

180

View full text Add to dashboard Cite

Plant phytochromes are photoswitchable red/far-red photoreceptors that allow competition with neighboring plants for photosynthetically active red light. In aquatic environments, red and far-red light are rapidly attenuated with depth; therefore, photosynthetic species must use shorter wavelengths of light. Nevertheless, phytochrome-related proteins are found in recently sequenced genomes of many eukaryotic algae from aquatic environments. We examined the photosensory properties of seven phytochromes from diverse algae: four prasinophyte (green algal) species, the heterokont (brown algal) Ectocarpus siliculosus, and two glaucophyte species. We demonstrate that algal phytochromes are not limited to red and far-red responses. Instead, different algal phytochromes can sense orange, green, and even blue light. Characterization of these previously undescribed photosensors using CD spectroscopy supports a structurally heterogeneous chromophore in the far-red–absorbing photostate. Our study thus demonstrates that extensive spectral tuning of phytochromes has evolved in phylogenetically distinct lineages of aquatic photosynthetic eukaryotes.

show abstract

mentioning

confidence: 99%

Eukaryotic algal phytochromes span the visible spectrum

Rockwell

Duanmu

Martin

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

163

180

View full text Add to dashboard Cite

show abstract

“…The coastline is icebound during winter . This ice scours the intertidal (Lobban & Hanic, 1984) and shallow subtidal (generally to about 7 m depth) zones (McLachlan et al ., 1987), and perennial macrophytic algae are limited largely to the subtidal area (Bird et al, 1983). The northern and western shorelines are exposed directly to wave action originating in the open Gulf.…”

Section: Introductionmentioning

confidence: 99%

“…Some large macrophytes, such as Ascophyllum nodosum (L .) Le Jolis, virtually are absent from this region (Bird et al, 1983). The friable rock substratum, in combination with ice scouring and turbulence, renders the subtidal zone of the northern shore of Prince Edward Island a dynamic and disturbance-mediated community (McLachlan et al, 1987).…”

Section: Introductionmentioning

confidence: 99%

Relationship between cover of Chondrus crispus (Gigartinales, Rhodophyta) and Phymatolithon (Corallinales, Rhodophyta) on friable rock substrata

Parker

McLachlan

1990

Hydrobiologia

Self Cite

View full text Add to dashboard Cite

Field observations in sublittoral Prince Edward Island, Canada, indicated that on a friable sandstone substratum Chondrus crispus was more commonly associated with Phymatolithon sp . than with bare rock . Thus, a substantial proportion of the population of Irish moss along the coast of Prince Edward Island occurs on this encrusting coralline . These observation may be explained on the basis of the relative stability of the substratum in contrast to other studies in which sloughing of epithallial cells by species of both Phymatolithon and Lithothamnium has been reported to limit epiphytism by fleshy macrophytes .

show abstract

“…Furcellaria lumbricalis occurs chiefly in colder waters of the North Atlantic and Arctic Oceans, although it has also been recorded from the Mediterranean and Black Seas (Bird et al, 1983;Holmsgaard et al, 1981). The species apparently is endemic to northern Europe, as populations in southern Europe and North America are disjunct and limited, and likely the result of introductions.…”

Section: Distributionmentioning

confidence: 96%

“…Initiation of new fronds from rhizoids and stolons appears to coincide with the period of maximum elongation (Austin, 1960d), as does the production of new dichotomies (Blinova, 1977). In North America, vegetative growth of F. lumbricalis in the field has not been assessed so systematically, but limited observations (Taylor, 1975) and a similar thermal regime (Bird et al, 1983;Blinova, 1975) suggest that growth follows much the same schedule as in the Baltic Sea. Austin (1960b, c) and Bird (1977) have reported on the reproductive phenology of F. lumbricalis from northern Europe and the Gulf of St. Lawrence, North America, respectively.…”

Section: Phenologymentioning

confidence: 97%

Biology of Furcellaria lumbricalis (Hudson) Lamouroux (Rhodophyta: Gigartinales), a commercial carrageenophyte

1991

Self Cite

View full text Add to dashboard Cite

Information on the commercially utilized marine red alga Furcellaria lumbricalis is summarized from published sources. Biological aspects under discussion include: nomenclature, taxonomy, morphology, development and life history, distribution, phenology, ecophysiology, growth and resource management. A brief history of the utilization of this species, and an account of its chemical constituents including the hydrocolloid furcellaran are also presented.

show abstract

Benthic marine algal flora of the north shore of Prince Edward Island (Gulf of St. Lawrence), Canada

Cited by 31 publications

References 14 publications

Eukaryotic algal phytochromes span the visible spectrum

Eukaryotic algal phytochromes span the visible spectrum

Relationship between cover of Chondrus crispus (Gigartinales, Rhodophyta) and Phymatolithon (Corallinales, Rhodophyta) on friable rock substrata

Biology of Furcellaria lumbricalis (Hudson) Lamouroux (Rhodophyta: Gigartinales), a commercial carrageenophyte

Contact Info

Product

Resources

About