Journal ArticleDOI
The genus Laminaria sensu lato : recent insights and developments
Inka Bartsch,Christian Wiencke,Kai Bischof,Cornelia Buchholz,Bela H. Buck,Anja Eggert,Peter Feuerpfeil,Dieter Hanelt,Sabine Jacobsen,Rolf Karez,Ulf Karsten,Markus Molis,Michael Y. Roleda,Hendrik Schubert,Rhena Schumann,Klaus Valentin,Florian Weinberger,Jutta Wiese +17 more
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TLDR
This review about the genus Laminaria sensu lato summarizes the extensive literature that has been published since the overview of the genus given by Kain in 1979, and covers recent insights into phylogeny and taxonomy, and discusses morphotypes, ecotypes, population genetics and demography.Abstract:
This review about the genus Laminaria sensu lato summarizes the extensive literature that has been published since the overview of the genus given by Kain in 1979. The recent proposal to divide the genus into the two genera Laminaria and Saccharina is acknowledged, but the published data are discussed under a 'sensu lato' concept, introduced here. This includes all species which have been considered to be 'Laminaria' before the division of the genus. In detail, after an introduction the review covers recent insights into phylogeny and taxonomy, and discusses morphotypes, ecotypes, population genetics and demography. It describes growth and photosynthetic performance of sporophytes with special paragraphs on the regulation of sporogenesis, regulation by endogenous rhythms, nutrient metabolism, storage products, and salinity tolerance. The biology of microstages is discussed separately. The ecology of these kelps is described with a focus on stress defence against abiotic and biotic factors and the role of Laminaria as habitat, its trophic interactions and its competition is discussed. Finally, recent developments in aquaculture are summarized. In conclusion to each section, as a perspective and guide to future research, we draw attention to the remaining gaps in the knowledge about the genus and kelps in general.read more
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Salinity and irradiance effects on growth and maximum photosynthetic quantum yield in subarctic Saccharina latissima (Laminariales, Laminariaceae)
Tania Spurkland,Katrin Iken +1 more
TL;DR: The results suggest that S. latissima populations exhibit phenotypic plasticity in their growth responses, which appears to be constrained within specific seasonal growth patterns in accordance with their environment of origin.
Journal ArticleDOI
Kelp transcriptomes provide robust support for interfamilial relationships and revision of the little known Arthrothamnaceae (Laminariales).
TL;DR: A 152‐gene phylogenomics approach was used to better resolve the phylogeny of the “derived” kelp families, and the formerly unresolved Egregia menziesii firmly joined a significantly expanded Arthrothamnaceae, which rendered both the Laminariaceae and Lessoniaceae monogeneric.
Journal ArticleDOI
Seaweed resources of the Baltic Sea, Kattegat and German and Danish North Sea coasts
TL;DR: In this paper, the Baltic Sea and Kattegat area and German and Danish North Sea coasts are characterized by a relatively low diversity of seaweeds due to low salinity and lack of hard substrata.
Journal ArticleDOI
Effects of macroalgal identity on epifaunal assemblages: native species versus the invasive species Sargassum muticum
TL;DR: This study analyzed epifaunal assemblages associated with three species of macroalgae that are very abundant on intertidal shores along the Galician coast and showed that the invasive S. muticum offered a suitable habitat for many invertebrates.
Journal ArticleDOI
DNA variation in the phenotypically-diverse brown alga Saccharina japonica.
TL;DR: It is concluded that the TYP and LON forms represent examples of algae phenotypic diversification that enables successful adaptation to contrasting shallow- and deep-water marine environments, while the SHA form is very similar to S. cichorioides and should be considered a different species.
References
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Orchestrated Transcription of Key Pathways in Arabidopsis by the Circadian Clock
Stacey L. Harmer,John B. Hogenesch,Marty Straume,Hur-Song Chang,Bin Han,Tong Zhu,Xun Wang,Joel A. Kreps,Steve A. Kay,Steve A. Kay +9 more
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Algae: An Introduction to Phycology
David G. Mann,H.M Jahns +1 more
TL;DR: In this article, the main groups of algae (divisions or phyla) are considered in turn, and the final chapter is a synthesis, in which the phylogeny of the algae is discussed in relation to the evolution of other living organisms.
Journal ArticleDOI
CONSTANS mediates between the circadian clock and the control of flowering in Arabidopsis
Paula Suárez-López,Kay Wheatley,Frances Robson,Frances Robson,Hitoshi Onouchi,Hitoshi Onouchi,Federico Valverde,George Coupland,George Coupland +8 more
TL;DR: It is shown that expression of CONSTANS (CO), a gene that accelerates flowering in response to long days, is modulated by the circadian clock and day length, suggesting mechanisms by which day length regulates flowering time.
Posted Content
Direct and Indirect Effects
TL;DR: A new way of defining the effect transmitted through a restricted set of paths, without controlling variables on the remaining paths is presented, which permits the assessment of a more natural type of direct and indirect effects.