67 results found
    1. Plant Biology
    2. Structural Biology and Molecular Biophysics

    Carotenoid assembly regulates quinone diffusion and the Roseiflexus castenholzii reaction center-light harvesting complex architecture

    Jiyu Xin, Yang Shi ... Xiaoling Xu
    Investigations of the reaction center (RC)-light harvesting (LH) complex from an ancient chlorosome-less anoxygenic phototroph Roseiflexus castenholzii reveal the structural basis by which carotenoids assembly regulates the architecture and quinone exchange of bacterial RC-LH complex.
    1. Plant Biology

    A cis-carotene derived apocarotenoid regulates etioplast and chloroplast development

    Christopher I Cazzonelli, Xin Hou ... Barry J Pogson
    Carotenoids are not just required as core components for plastid biogenesis, they can be cleaved into an apocarotenoid signal that regulates etioplast and chloroplast development during extended periods of darkness.
    1. Plant Biology

    Photosynthesis without β-carotene

    Pengqi Xu, Volha U Chukhutsina ... Roberta Croce
    Tobacco plants containing xanthophyll astaxanthin show that both photosystems are fully functional in the absence of carotenes, and these pigments are not essential for photosynthesis.
    1. Biochemistry and Chemical Biology
    2. Neuroscience

    Complementary shifts in photoreceptor spectral tuning unlock the full adaptive potential of ultraviolet vision in birds

    Matthew B Toomey, Olle Lind ... Joseph C Corbo
    Birds that see ultraviolet light tune the sensitivity of their short-wavelength photoreceptors with colored filters to maximize the number of colors they can see.
    1. Cell Biology
    2. Evolutionary Biology

    Lipid droplet biology and evolution illuminated by the characterization of a novel perilipin in teleost fish

    James G Granneman, Vickie A Kimler ... Ryan Thummel
    Phylogenetic, biochemical, and genetic techniques reveal a novel and ancient member of the Perilipin family, termed Plin6, that functions to concentrate and traffic lipophilic skin pigment in teleost fish.
    1. Developmental Biology

    Development and genetics of red coloration in the zebrafish relative Danio albolineatus

    Delai Huang, Victor M Lewis ... David M Parichy
    In the zebrafish relative Danio albolineatus, red erythrophores share a common progenitor with yellow xanthophores and require Cyp2ae2 and Bdh1a for accumulation of red ketocarotenoid pigment.
    1. Plant Biology
    2. Structural Biology and Molecular Biophysics

    Identification of distinct pH- and zeaxanthin-dependent quenching in LHCSR3 from Chlamydomonas reinhardtii

    Julianne M Troiano, Federico Perozeni ... Gabriela S Schlau-Cohen
    Light-harvesting complex stress-related is a protein from photosynthetic green algae that prevents damage from sunlight via two distinct conformational processes, which protect against different timescales of solar fluctuations.
    1. Developmental Biology
    2. Genetics and Genomics

    Thyroid hormone regulates distinct paths to maturation in pigment cell lineages

    Lauren M Saunders, Abhishek K Mishra ... David M Parichy
    Single-cell transcriptomics combined with genetic analyses identify post-embryonic neural crest subpopulations and thyroid hormone dependencies in zebrafish adult pigment pattern development.
    1. Evolutionary Biology

    A β-carotene-binding protein carrying a red pigment regulates body-color transition between green and black in locusts

    Meiling Yang, Yanli Wang ... Le Kang
    Body color change of locusts reveals a new 'palette effect' mechanism by which the red βCBP–β-carotene pigment complex acts as a switch to coordinate between black and green coloration.
    1. Plant Biology
    2. Computational and Systems Biology

    The photosystem I supercomplex from a primordial green alga Ostreococcus tauri harbors three light-harvesting complex trimers

    Asako Ishii, Jianyu Shan ... Jun Minagawa
    The structure of the photosystem I (PSI) supercomplex in Ostreococcus tauri has revealed a unique hybrid of both plant-type and green algal-type PSI supercomplexes with three Lhcp trimers located at the ‘state 2’ position.

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