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
Reads0
Chats0
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
Citations
More filters
Journal ArticleDOI
Variation in population structure and standing stocks of kelp along multiple environmental gradients and implications for ecosystem services
TL;DR: In this paper, the characteristics of canopy kelp plants of Laminaria hyperborea were investigated along the Norwegian part of the NE Atlantic, and 10 characteristics related to size, allometry, density, biomass and epiphytes were analyzed along wide gradient of depth, wave exposure and latitude.
Journal ArticleDOI
Meiospores produced in sori of nonsporophyllous laminae of Macrocystis pyrifera (Laminariales, Phaeophyceae) may enhance reproductive output
TL;DR: Different lamina of Macrocystis pyrifera sporophytes in a wave‐sheltered site were found to be fertile, and sorus area was greatest on the sporophylls, with sporangia developing on >57% of the total area and smallest on the pneumatocyst‐bearing blades.
Journal ArticleDOI
The Abundance of Kelp Is Modified by the Combined Impact of Depth, Waves and Currents
Trine Bekkby,Cecilie Smit,Hege Gundersen,Eli Rinde,Henning Steen,Lise Ann Tveiten,Janne Kim Gitmark,Stein Fredriksen,Jon Albretsen,Hartvig Christie +9 more
TL;DR: In this article, the combined impact of two types of ocean water flow, wave exposure and ocean currents, on kelp Laminaria hyperborea abundance, taking other environmental co-variables into account, is analyzed.
Journal ArticleDOI
qPCR-based relative quantification of the brown algal endophyte Laminarionema elsbetiae in Saccharina latissima: variation and dynamics of host-endophyte interactions.
Miriam Bernard,Sylvie Rousvoal,Bertrand Jacquemin,Bertrand Jacquemin,Marion Ballenghien,Akira F. Peters,Catherine Leblanc +6 more
TL;DR: Very high endophyte prevalence is detected in the investigated kelp populations, up to 100% in young S. latissima sporophytes in Brittany during spring, suggesting that Saccharina sporophyts are infected early in their life and that seasonality and environmental factors have a significant impact on infection rates.
Journal ArticleDOI
Sustained productivity and respiration of degrading kelp detritus in the shallow benthos: Detached or broken, but not dead.
TL;DR: In this article, the physiological response of degrading detritus from two competing North East Atlantic species; the native Boreal Laminaria hyperborea and the thermally tolerant Boreal-Lusitanian L. ochroleuca was measured by a mesocosm experiment across a gradient of spectral attenuation (a proxy for depth).
References
More filters
Journal ArticleDOI
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
TL;DR: This study presents a comprehensive view of the temporal compartmentalization of physiological pathways by the circadian clock in a eukaryote.
Journal ArticleDOI
Organic osmolytes as compatible, metabolic and counteracting cytoprotectants in high osmolarity and other stresses
TL;DR: Organic osmolytes are small solutes used by cells of numerous water-stressed organisms and tissues to maintain cell volume and have applications in biotechnology, agriculture and medicine, including in vitro rescue of the misfolded protein of cystic fibrosis.
Book
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.