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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Sympatric kelp species share a large portion of their surface bacterial communities.
Matthew A. Lemay,Patrick T. Martone,Patrick J. Keeling,Jenn M. Burt,Kira A. Krumhansl,Rhea D. Sanders,Laura Wegener Parfrey +6 more
TL;DR: This study quantified the diversity of bacteria on the surfaces of eight sympatric kelp species from four sites in British Columbia to provide the first community-scale investigation of kelp forest-associated bacterial diversity.
Journal ArticleDOI
Length, strength and water flow: relative importance of wave and current exposure on morphology in kelp Laminaria hyperborea
Trine Bekkby,Eli Rinde,Hege Gundersen,Kjell Magnus Norderhaug,Janne Kim Gitmark,Hartvig Christie +5 more
TL;DR: This study suggests that the strong, orbital and stochastic mode of wave exposure has a different and stronger effect as a stressor than the more regular and bidirectional stress caused by currents.
Journal ArticleDOI
RNA-Seq revealed complex response to heat stress on transcriptomic level in Saccharina japonica (Laminariales, Phaeophyta)
TL;DR: The results indicated that the heat stress triggered complex response of S. japonica; in turn, S.Japonica adjusted its physiological and metabolic processes to adapt to and survive theHeat stress.
Journal ArticleDOI
Effects of CO2 and seawater acidification on the early stages of Saccharina japonica development.
Dong Xu,Dongsheng Wang,Bin Li,Xiao Fan,Xiao W. Zhang,Nai H. Ye,Yitao Wang,Shanli Mou,Zhimeng Zhuang +8 more
TL;DR: It is demonstrated that ocean acidification had significant negative effects on the microscopic development of Saccharina japonica in a short-term exposure experiment under a range of light conditions, which may result in future shifts in species dominance and community structure.
Journal ArticleDOI
Alteration of Sexual Reproduction and Genetic Diversity in the Kelp Species Laminaria digitata at the Southern Limit of Its Range
Luz Valeria Oppliger,Peter von Dassow,Sarah Bouchemousse,Marine Robuchon,Myriam Valero,Juan A. Correa,Stéphane Mauger,Christophe Destombe +7 more
TL;DR: Although spore production and development showed the expected tendency of geographical parthenogenesis in marginal populations, this appeared to be a consequence of maladaptation, rather than an adaptation to, life in a marginal habitat.
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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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.