Results 101 to 110 of about 16,603 (312)

Isolation of carotenoid-producing yeasts from an alpine glacier [PDF]

, 2014
Cold-adapted yeasts are increasingly being isolated from glacial environments, including Artic, Antarctic, and mountain glaciers. Psychrophilic yeast isolates mostly belong to Basidiomycota phylum, such as Cryptococcus, Mrakia, and Rhodotorula, and ...
AMARETTI, Alberto, LEONARDI, Alan, MASINO, Francesca, QUARTIERI, ANDREA, RAIMONDI, Stefano, ROSSI, Maddalena, SIMONE, MARTA   +6 more
core   +1 more source

Cold comfort for change: Stream mats as biological indicators of ecosystem processes in the McMurdo Dry Valleys, Antarctica

Journal of Phycology, EarlyView.
Abstract Glacier‐fed streams (GFSs) make ideal systems for studying climate‐related changes. Some of the best‐studied GFSs are found in the McMurdo Dry Valleys (MDVs) of Antarctica, one of the Earth's coldest and driest deserts. Despite their harsh and isolated nature, MDV GFSs represent an oasis of life in a landscape visually devoid of it, with ...
Tyler J. Kohler, Ian Hawes, Adrian Howkins, Lydia H. Zeglin, Mike N. Gooseff, Diane M. McKnight   +5 more
wiley   +1 more source

Carotenoid content and reflectance of yellow and red nuptial plumages in widowbirds (Euplectes spp.) [PDF]

, 2007
1. Ornamental carotenoid coloration is commonly based on several different pigments with different nutritional and metabolic constraints. The identification and quantification of carotenoid pigments is therefore crucial to the understanding of signal ...
Andersson S., Andersson S., Armstrong G.A., Britton G., Britton G., Brockmann H., Brush A.H., Davies B.H., Davies B.H., Fox H.M., Fry C.H., Goodwin T.W., Goodwin T.W., Hill G.E., Hill G.E., Hudon J., Kritzler H., McGraw K.J., Moller A.P., Olson J.A., Pryke S.R., Schiedt K., Stradi R., Wolf P., Zahn S.N.   +24 more
core   +1 more source

Influence of prey concentration, light intensity, and temperature on the growth and ingestion of the mixotrophic dinoflagellate Pyrophacus horologium, a predator of the harmful species Heterocapsa niei

Journal of Phycology, EarlyView.
Abstract Pyrophacus horologium belongs to the family Pyrocystaceae and was recently identified as a mixotrophic dinoflagellate capable of feeding on other dinoflagellates. In this study, the growth and feeding responses of P. horologium were investigated under various environmental conditions by providing Heterocapsa niei, its preferred prey.
Min‐jun Seong, Kun‐woo Yun, Hwa‐seong Son, Seung‐min Lee, Mu‐chan Kim   +4 more
wiley   +1 more source

Gene cloning and expression profile of a novel carotenoid hydroxylase (CYP97C) from the green alga Haematococcus pluvialis [PDF]

, 2014
A full-length complementary DNA (cDNA) sequence of epsilon-ring CHY (designated Haecyp97c) was cloned from the green alga Haematococcus pluvialis by reverse transcription polymerase chain reaction (RT-PCR) and rapid amplification of cDNA ends methods ...
Cui, Hongli, Cui, Yulin, Li, Xueqin, Liu, Zhaopu, Qin, S (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Biol Resources Utilizat, Yantai 264003, Peoples R China. sea@njau.edu.cn, Qin, Song, sqin@yic.ac.cn, Wang, Yan, Yu, Xiaona   +8 more
core   +1 more source

Peer Review #1 of "Response of photosynthesis, the xanthophyll cycle, and wax in Japanese yew (Taxus cuspidata L.) seedlings and saplings under high light conditions (v0.3)"

, 2023

openalex   +1 more source

Perceptions of Medications and Supplements by U.S. Dog‐Interested Members of the Public and Final‐Year Veterinary Students

Journal of Veterinary Pharmacology and Therapeutics, EarlyView.
ABSTRACT Veterinary graduates must be prepared to educate clients about medications and supplements. We surveyed 1955 Dog Aging Project newsletter recipients and 40 final‐year veterinary students at Texas A&M College of Veterinary Medicine and Biomedical Sciences on their perceptions about medications and supplements. Respondents indicated whether each
Sidonie T. Gallinger, Johanna C. Heseltine, Kate Illing, Virginia R. Fajt, Dog Aging Project Consortium, Joshua M. Akey, Brooke Benton, Elhanan Borenstein, Marta G. Castelhano, Amanda E. Coleman, Kate E. Creevy, Kyle Crowder, Matthew D. Dunbar, Virginia R. Fajt, Annette L. Fitzpatrick, Unity Jeffery, Erica C. Jonlin, Matt Kaeberlein, Elinor K. Karlsson, Kathleen F. Kerr, Jonathan M. Levine, Jing Ma, Robyn L. McClelland, Daniel E. L. Promislow, Audrey Ruple, Stephen M. Schwartz, Sandi Shrager, Noah Snyder‐Mackler, M. Katherine Tolbert, Silvan R. Urfer, Benjamin S. Wilfond, Kate E. Creevy   +31 more
wiley   +1 more source

Xanthophylls are preferentially taken up compared with β-carotene by retinal cells via a SRBI-dependent mechanism*1

Journal of Lipid Research, 2008
The purpose of this study was to investigate the mechanisms by which carotenoids [xanthophylls vs. β-carotene(β-C)] are taken up by retinal pigment epithelial (RPE) cells. The human RPE cell line, ARPE-19, was used.
Alexandrine During, Sundari Doraiswamy, Earl H. Harrison   +2 more
doaj   +1 more source

Antioxidant activities of carotenes and xanthophylls

FEBS Letters, 1996
The purpose of this study was to assess the relative antioxidant activities of a range of carotenes and xanthophylls through the extent of their abilities to scavenge the ABTS·+ radical cation. The results show that the relative abilities of the carotenoids to scavenge the ABTS·+ radical cation are influenced by the presence of functional groups with ...
Miller, Nicholas J., Sampson, Julia, Candeias, Luis P., Bramley, Peter M., Rice-Evans, Catherine A.   +4 more
openaire   +2 more sources

The unicellular green microalga Botryosphaerella sudetica links plant‐like light protection with an algal lifestyle

New Phytologist, EarlyView.
Summary Nonphotochemical quenching (NPQ) mechanisms fine‐tune light utilisation in the photosynthetic antenna, for example, in response to excess light, to prevent photodamage. NPQ comprises distinct mechanisms, all contributing to photoprotection but acting on different time scales.
Olga Blifernez‐Klassen, Hanna Berger, Viktor Klassen, Swapnil Chaudhari, Thomas Baier, Lutz Wobbe, Olaf Kruse   +6 more
wiley   +1 more source