Results 11 to 20 of about 2,811 (165)

Eye Darkening Under Dehydration Stress in the Neotropical Frog Boana punctata (Schneider, 1799). [PDF]

J Exp Zool A Ecol Integr Physiol
Dehydration induces a strong and partially reversible increase in iris pigmentation in the Neotropical frog Boana punctata. The tight relationship between iris darkening and hydration state identifies ocular pigmentation as a simple, non‐invasive physiological biomarker with broad potential for assessing hydric stress in amphibian populations ...
Reques R, Schaefer EF, Sanabria EA, Aguiar LD, Quiroga LB, Tejedo M.   +5 more
europepmc   +2 more sources

Colour Confusion: Reviewing Ambiguities in the Identification and Classification of Chromatophore Deficiencies Among Amphibians. [PDF]

Ecol Evol
The colour of amphibian skin and eyes (retina and iris) is the result of light interacting with cells called chromatophores, primarily xanthophores, iridophores and melanophores, that can be found in various combinations.
Gould J.
europepmc   +3 more sources

Pelagic sea cucumbers in the Galapagos: Midwater grazers that short-circuit deep-sea carbon flux. [PDF]

Ecology
Ecology, Volume 107, Issue 9, September 2026.
Robison BH.
europepmc   +2 more sources

A comparative study of fish coloration and toxicant responses in a chromatophore cell-based biosensor

Detection of both biological and chemical environmental toxicants is essential in the assessment of risk to human health. Cell-based biosensors are capable of activity- based detection of toxicity. Chromatophore cells, responsible for the pigmentation of
Roach, Holly B.
core   +6 more sources

A bipartite chromatophore transit peptide and N-terminal protein processing in the Paulinella chromatophore

, 2022
The amoeba Paulinella chromatophora contains photosynthetic organelles, termed chromatophores, which evolved independently from plastids in plants and algae.
Huesgen, Pitter F, Nowack, Eva C M, Oberleitner, Linda, Perrar, Andreas, Macorano, Luis   +4 more
core   +1 more source

Integrating environmental DNA, diving surveys and DNA barcoding to track endangered twaite shad (Alosa fallax) spawning sites. [PDF]

J Fish Biol
Abstract The twaite shad (A. fallax), an anadromous fish species belonging to the Clupeidae family, has experienced population declines throughout Europe. This decline is attributable to a range of anthropogenic pressures, including migration barriers, environmental pollution, habitat degradation, predation by invasive species and unsustainable fishing
Ardenghi A, Filonzi L, Bellin N, Rontani PM, Campbell MA, Saccò M, Allentoft ME, Nizzoli D, Piccinini A, Papa R, Nonnis Marzano F.   +10 more
europepmc   +2 more sources

DNA-binding and protein structure of nuclear factors likely acting in genetic information processing in the Paulinella chromatophore

, 2023
The chromatophores in Paulinella are evolutionary-early-stage photosynthetic organelles. Biological processes in chromatophores depend on a combination of chromatophore and nucleus-encoded proteins.
Gertzen, Christoph G. W., Klimenko, Victoria, Singer, Anna, Höppner, Astrid, Stefanski, Anja, Applegate, Violetta, Smits, Sander H. J., Oberleitner, Linda, Nowack, Eva C. M., Binny, Taniya M., Seyffert, Sarah, Macorano, Luis, Spiegl, Tobias, Gremer, Lothar   +13 more
core   +2 more sources

FOF1-ATPase Motor-Embedded Chromatophore as Drug Delivery System: Extraction, Cargo Loading Ability and Mucus Penetration Ability

, 2023
Mucosal drug delivery permits direct and prompt drug absorption, which is capable of reducing undesirable decomposition that occurs before absorption.
Bang Lou, Ning Zheng, Qingliang Yang, Xuhui Zhou, Yujing Wu, Gensheng Yang, Ying Gao, Weiyong Hong   +7 more
core   +1 more source

Chromatophore Genome Sequence of Paulinella Sheds Light on Acquisition of Photosynthesis by Eukaryotes [PDF]

, 2008
SummaryBackgroundIt is commonly accepted that a single primary endosymbiosis gave rise to the photosynthetic organelles of plants, the plastids. Recently, we presented evidence that photosynthetic inclusions, termed “chromatophores,” present in the ...
Nowack, Eva C.M., Glöckner, Gernot, Melkonian, Michael   +2 more
core   +1 more source

Tracking N-terminal protein processing from the Golgi to the chromatophore of a rhizarian amoeba

, 2022
Mass spectrometry analysis of protein processing in a photosynthetic rhizarian amoeba, Paulinella chromatophora, suggests a major trafficking route from the cytosol to the chromatophore via the ...
Meinnel, Thierry
core   +1 more source