Results 31 to 40 of about 198,070 (204)

Airinemes: thin cellular protrusions mediate long-distance signalling guided by macrophages [PDF]

open access: yesOpen Biology, 2020
Understanding the mechanisms of cell-to-cell communication is one of the fundamental questions in biology and medicine. In particular, long-range signalling where cells communicate over several cell diameters is vital during development and homeostasis ...
Dae Seok Eom
doaj   +1 more source

New Species of Sminthuridae from North America (Collembola: Symphypleona) [PDF]

open access: yes, 2017
(excerpt) This account is the result of efforts by Drs. Kenneth Christiansen and Peter Bellinger to amass and examine the major collections of North American Collembola.
Snider, Richard J
core   +2 more sources

Self-organizing floral pigmentation patterns [PDF]

open access: yesScience, 2020
Plant Science Petals of Mimulus flowers are decorated with anthocyanin spots in patterns that cue pollinators. Ding et al. show how, following the rules of a reaction-diffusion system, a self-activating transcription factor called NECTAR GUIDE ANTHOCYANIN (NEGAN) interacts with a mobile repressor to organize pigment patterns on flower petals. Among the
openaire   +1 more source

Pigment pattern formation in the medaka embryo [PDF]

open access: yesPigment Cell Research, 2005
SummaryFor the study of development of pigmentation, compared with mammalian models, fish offer the advantage of multiple chromatophore types and ready access to the developing embryo for observation and experimental manipulation. Compared with zebrafish embryos, medaka embryos have an additional unique chromatophore‐type and superb properties for ...
M, Lynn Lamoreux   +3 more
openaire   +2 more sources

Pigmentation and color pattern diversity in Odonata

open access: yesCurrent Opinion in Genetics & Development, 2021
The order Odonata (dragonflies and damselflies) comprises diurnal insects with well-developed vision, showing diverse colors in adult wings and bodies. It is one of the most ancestral winged insect groups. Because Odonata species use visual cues to recognize each other, color patterns have been investigated from ecological and evolutionary viewpoints ...
Genta, Okude, Ryo, Futahashi
openaire   +2 more sources

Interactions with iridophores and the tissue environment required for patterning melanophores and xanthophores during zebrafish adult pigment stripe formation.

open access: yesPLoS Genetics, 2013
Skin pigment patterns of vertebrates are a classic system for understanding fundamental mechanisms of morphogenesis, differentiation, and pattern formation, and recent studies of zebrafish have started to elucidate the cellular interactions and molecular
Larissa B Patterson, David M Parichy
doaj   +1 more source

Sequence-Based Mapping and Genome Editing Reveal Mutations in Stickleback Hps5 Cause Oculocutaneous Albinism and the casper Phenotype. [PDF]

open access: yes, 2017
Here, we present and characterize the spontaneous X-linked recessive mutation casper, which causes oculocutaneous albinism in threespine sticklebacks (Gasterosteus aculeatus).
Hart, James C, Miller, Craig T
core   +2 more sources

Diffusion Of Indigo Molecules Inside The Palygorskite Clay Channels [PDF]

open access: yes, 2011
The search for durable dyes led several past civilizations to develop artificial pigments. Maya Blue (MB), manufactured in pre-Columbian Mesoamerica, is one of the best known examples of an organic-inorganic hybrid material.
Anne, Michel   +8 more
core   +4 more sources

Pigment epithelial pattern dystrophy: a peripheral type. [PDF]

open access: yesBritish Journal of Ophthalmology, 1985
A hitherto undescribed form of pattern dystrophy of the retinal pigment epithelium was found in a patient suffering from mucopolysaccharidosis II or Hunter's disease. We propose the name peripheral pattern dystrophy.
Delleman, J.W., de Jong, P.T.V.M.
openaire   +3 more sources

Retinal cone photoreceptors of the deer mouse Peromyscus maniculatus : development, topography, opsin expression and spectral tuning [PDF]

open access: yes, 2013
A quantitative analysis of photoreceptor properties was performed in the retina of the nocturnal deer mouse, Peromyscus maniculatus, using pigmented (wildtype) and albino animals.
Arbogast, Patrick   +2 more
core   +2 more sources

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