Results 131 to 140 of about 170,039 (295)

No Evidence for the Induction of Brown Algal Chemical Defense by the Phytohormones Jasmonic Acid and Methyl Jasmonate [PDF]

, 2018
Induced chemical defense reactions are widespread in marine brown algae. Despite the evidence that the biosynthesis of defense metabolites can be up-regulated upon herbivory, we do not know how this regulation of biosynthetic pathways to secondary ...
Jahn, Karsten, Pohnert, Georg, Wiesemeier, Theresa   +2 more
core  

Holocene sea‐level and environmental changes on the Isle of Mull, Scotland

Journal of Quaternary Science, EarlyView.
ABSTRACT Sea‐level and coastal changes are reconstructed on the Isle of Mull, western Scotland, from 10 988 to 10 507 cal BP to the present. This research has produced the first SLIP for the Isle of Mull. A multiproxy approach including pollen, spore, foraminifera and diatom analyses reveals palaeoenvironmental changes from two coastal sites.
Katherine A. Selby, Jane Wheeler, William E. N. Austin, Heather Austin, Tom Hill, Sarah L. Bradley, Sally Derrett   +6 more
wiley   +1 more source

From Ice to Isolation: A geochemical reconstruction of the palaeoenvironmental evolution of Gairloch, NW Scotland (UK), since the Last Glacial Maximum

Journal of Quaternary Science, EarlyView.
ABSTRACT Complex relative sea‐level (RSL) changes are associated with the deglaciation of the British and Irish Ice Sheet (BIIS). Sediment archives from Loch Bad na h‐Achlaise, an isolation basin in NW Scotland, UK, span Late Glacial to Holocene time and record sea‐level change and ice proximity via a geochemical and biostratigraphic multiproxy ...
Jennifer Taylor, David Selby, Jeremy M. Lloyd, Louise Best, Luca Podrecca, Bradley B. Sageman, Alexander R. Simms   +6 more
wiley   +1 more source

Reconstructing post‐crisis recovery in the hinterlands of Constantinople: A high‐resolution first‐millennium CE pollen record from Lake Yeniçağa (NW Türkiye)

Journal of Quaternary Science, EarlyView.
ABSTRACT Facing a novel plague pandemic, military invasions, and political–economic transformations, societies of the eastern Roman (Byzantine) empire had to adapt to a variety of pressures and new ways of exploiting their natural environments during the mid‐1st millennium CE.
Cristiano Vignola, Mustafa Doğan, Warren Eastwood, John Haldon, Alessia Masi, Neil Roberts, Çetin Şenkul, Adam Izdebski   +7 more
wiley   +1 more source

A twofold development and demise of pine stands in the Netherlands during the Allerød interstadial: two hypotheses to explain a link to climate change recorded in Greenland ice

Journal of Quaternary Science, EarlyView.
ABSTRACT The second half of the Allerød interstadial in the Netherlands is characterised by pine forest. Excavated trunks of 165 pine trees at Leusden‐Den Treek in the central Netherlands (LETR16) were dated by dendrochronology and radiocarbon. Two chronologically separated pine forest phases occurred during relatively warm periods as recorded in ...
Wim Z. Hoek, Jos Bazelmans, Otto Brinkkemper, Petra Doeve, Bas van Geel   +4 more
wiley   +1 more source

The distribution of marine algae [PDF]

, 1925
Thesis (M.A.)--Boston ...
Navarro, Miguel Angel
core   +1 more source

Degradation of pigments in Limnospira platensis extracts

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Limnospira platensis, commonly known as spirulina, holds promise for application as a food ingredient and nutraceutical due to its rich protein and antioxidant content, including chlorophylls, carotenoids and phycocyanin. Despite its potential, the vibrant colour poses a challenge for consumer acceptance, hampering the marketability
Marisa Cardoso, Carla Brazinha, Carla AM Portugal   +2 more
wiley   +1 more source

日本産海藻の赤血球に対する溶血作用と保護作用 [PDF]

, 2013
Hemolytic and protective activities of crude extracts from 9 seaweed (2 green algae, 2 brown algae and 6 red algae) to sheep red blood cell were evaluated by the absorbance at 541nm and 576 nm on the spectrophotometric analysis.All the seaweed which ...
柴田 潔, 荒井 千明, 長谷川 和清   +2 more
core  

Comparison between fluorometry and microscopy‐based phytoplankton assessments in the Laurentian Great Lakes

Limnology and Oceanography: Methods, EarlyView.
Abstract Photosynthetic pigment fluorescence is commonly used in limnology and oceanography as a proxy for phytoplankton biomass. Fluorometry has been used to detect subsurface algal blooms, characterize dynamics of the deep chlorophyll layer, and to provide greater vertical resolution to phytoplankton monitoring.
Katya E. Kovalenko, Euan D. Reavie, Christopher T. Filstrup, Anne Scofield, Meaghan Lightfoot, Erica Yang, Elizabeth E. Alexson   +6 more
wiley   +1 more source

Red, green, blue color indices as proxy for Symbiodiniaceae cell density and chlorophyll content during coral bleaching

Limnology and Oceanography: Methods, EarlyView.
Abstract Coral bleaching, the breakdown of the symbiosis between the coral host and endosymbiotic microalgae, is the main cause of widespread coral reef degradation. Current visual assessment methods for coral health, including color reference cards, are constrained by subjective human color perception and limited resolution.
Erik Francesco Ferrara, Lavinia Bauer, Giulia Puntin, Friederike Bautz, Sibel Celayir, Marie‐Sa Do, Frederik Eck, Melissa Heider, Pia Wissel, Angelina Arnold, Thomas Wilke, Jessica Reichert, Maren Ziegler   +12 more
wiley   +1 more source