49 results found
    1. Plant Biology

    Photosynthesis without β-carotene

    Pengqi Xu et al.
    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. Plant Biology

    A cis-carotene derived apocarotenoid regulates etioplast and chloroplast development

    Christopher I Cazzonelli et al.
    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. 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 et al.
    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 et al.
    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. Plant Biology
    2. Structural Biology and Molecular Biophysics

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

    Julianne M Troiano et al.
    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. Structural Biology and Molecular Biophysics
    2. Plant Biology

    The structure of plant photosystem I super-complex at 2.8 Å resolution

    Yuval Mazor et al.
    The crystal structure of higher plant PSI-LHCI complex reveals intricate details responsible for light harvesting.
    1. Developmental Biology

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

    Delai Huang et al.
    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. Ecology

    The return to water in ancestral Xenopus was accompanied by a novel mechanism for producing and shaping vocal signals

    Ursula Kwong-Brown et al.
    When ancestral Xenopus returned to water ~170mya, they evolved a new method for producing courtship calls underwater without airflow, using vibrations that also preserve essential acoustic information on species identity.
    1. Developmental Biology
    2. Genetics and Genomics

    Thyroid hormone regulates distinct paths to maturation in pigment cell lineages

    Lauren M Saunders et al.
    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
    2. Genetics and Genomics

    Introgression shapes fruit color convergence in invasive Galápagos tomato

    Matthew JS Gibson et al.
    A wild tomato species adopts local fruit color via introgression from an endemic relative, during its invasion onto the Galápagos Islands.

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