Results 101 to 110 of about 15,082 (253)

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

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

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

NPF2 is involved in intracellular pH regulation and ion balance in the diatom Phaeodactylum tricornutum

New Phytologist, EarlyView.
Summary Cellular ion and pH homeostasis are crucial factors affecting and regulating metabolic reactions, protein stability, signalling and transport mechanisms. To balance intracellular ion concentrations, organisms need to constantly sense and respond to both the extracellular environment and cell compartments' requests.
Anna Santin, Monia Teresa Russo, Dany Croteau, Antonella Ruggiero, Sara Russo Spena, Laura Morales de los Rios, Claire Corratge‐Faillie, Seleem Brignone, Benoit Lacombe, Remo Sanges, Maurizio Chiurazzi, Maurizio Ribera d'Alcalà, Benjamin Bailleul, Angela Falciatore, Maria Immacolata Ferrante, Alessandra Rogato   +15 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

PlantCTCIP: Chromatin Interaction Prediction Using Convolutional Neural Network and Transformer in Plants

Plant Biotechnology Journal, EarlyView.
ABSTRACT Chromatin interactions establish spatial proximity between distant regulatory elements and their target genes, significantly influencing gene expression, and phenotypic traits. In this study, we present a plant chromatin interaction prediction model called PlantCTCIP based on Convolutional Neural Networks and Transformer.
Zhenye Wang, Siyu Zhou, Ze Guo, Zilan Ning, Jiaqi Cai, Ran Zhao, Ao Xie, Quan Li, Jiangling Zhang, Yongsheng Zhao, Peizhang Li, Haiping Si, Jianbing Yan, Yong Peng, Jianxiao Liu   +14 more
wiley   +1 more source

Drought‐Induced Abscisic Acid Accumulation in Soybean Roots Depends on NCED Gene Expression More Than Shoot‐to‐Root ABA Transport

Plant, Cell &Environment, EarlyView.
Abstract Abscisic acid (ABA) is a key phytohormone in plant responses to water deficit. Although there is extensive evidence that roots can synthesise ABA, recent findings suggest that local synthesis in response to dehydration contributes little to the root ABA pool compared to shoot‐sourced ABA.
Jaime Puértolas, Pedro Castro‐Valdecantos, Moxian Chen, Jianhua Zhang, Ian C. Dodd   +4 more
wiley   +1 more source

Astaxanthin and Related Xanthophylls

, 2014
This chapter describes astaxanthin and other xanthophylls, which are a class of carotenoids with oxygenated groups in their structure and characteristic vivid colors. Taking astaxanthin as a key example, the presented concepts focus on the functional aspects and applications of xanthophylls, such as their nutritional value, potential for protection ...
Alcaíno Gorman, Jennifer, Baeza Cancino, Marcelo, Cifuentes Guzmán, Víctor   +2 more
openaire   +2 more sources

Diurnal Variations in Photochemical Energy Utilization and Osmotic Adjustments in Black Poplar Leaves Under Progressive Water Stress

Plant, Cell &Environment, EarlyView.
ABSTRACT Drought limits the productivity of fast‐growing woody crops, although the metabolic adjustments conferring water stress tolerance remain poorly understood. We investigated the responses of Populus nigra seedlings to water stress by integrating daily physiological measurements and NMR metabolomic analyses.
Antonella Gori, Mauro Centritto, Anatoly P. Sobolev, Giovanni Marino, Francesco Loreto, Francesca Alderotti, Cecilia Brunetti   +6 more
wiley   +1 more source

Stability of carotenoids toward UV-irradiation in hexane solution [PDF]

Journal of the Serbian Chemical Society, 2008
The stabilities of four selected carotenoids dissolved in hexane, two carotenes and two xanthophylls, toward UV-irradiation of three different ranges (UV-A, UV-B and UV-C) were studied in this work. The carotenoids underwent bleaching via a probable free
DRAGAN CVETKOVIC, DEJAN MARKOVIC
doaj