Results 11 to 20 of about 3,578 (101)

A Pentaradial and Bilateral Combined Photoreception System in the Sea Cucumber is Mediated by a Blue Light-Sensitive R-Opsin. [PDF]

open access: yesAdv Sci (Weinh)
The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Huang J   +20 more
europepmc   +2 more sources

Imprecision in Vision: Lessons From Neural Circuits in the Fly. [PDF]

open access: yesBioessays
Visual systems are considered regular, retinotopic structures. Here, we summarize findings, including evidence from recent connectomes, that demonstrate cellular and synaptic heterogeneity in the Drosophila visual system —from regional specialization and stochastic photoreceptor patterns to heterogeneous synaptic connectivity.
Wernet MF, Silies M.
europepmc   +2 more sources

Algal Eyes

open access: yesMajor Reference Works., 2011

Wiley is pleased to announce the recent acquisition of the prestigious Encyclopedia of Life Sciences (ELS) from the Nature Publishing Group.

"The most ambitious single source reference source ever produced in the biological sciences"
—American Reference Books Annual

Spanning the entire spectrum of life science ...
Peter Hegemann, Carol Dieckmann
wiley  

+1 more source

Extraocular Photoreception in Optic Lobes, Suckers, and Skin of Octopus vulgaris

open access: yesIntegrative Zoology, EarlyView.
Evidence of extra‐ocular photoreception in Octopus vulgaris (a) Diagram of the O. vulgaris different tissues considered: SPB, sucker proximal big; SPL, sucker proximal large; SM, sucker medium; SD, sucker distal; SK, skin; OL, optic lobes; RT, retina; (b‐d) Gene expression analysis of Ov‐GRK1 (red), Ov‐retinochrome (green), Ov‐rhodopsin (blue) mRNA ...
Valeria Maselli   +7 more
wiley   +1 more source

First Insights on Photoreceptor Organ Ultrastructure in Marine Chaetonotida (Gastrotricha): Species of Xenotrichula and Draculiciteria (Xenotrichulidae)

open access: yesActa Zoologica, EarlyView.
ABSTRACT Marine gastrotrichs inhabit sediments with limited available light, yet evidence suggests that photoreceptor organs are present throughout the phylum Gastrotricha. Here, we confirm this proposition with ultrastructural descriptions of photoreceptive organs in two species of Xenotrichulidae (Order Chaetonotida) that lack pigmented ocelli ...
Thiago Quintão Araújo, Rick Hochberg
wiley   +1 more source

Circadian regulation of reproduction and neoblast cell division in the catenulid flatworm Stenostomum virginianum (Platyhelminthes)

open access: yesPhotochemistry and Photobiology, EarlyView.
The circadian clock and melatonin coordinate homeostasis in many animals, yet their influence on reproduction and neoblast proliferation has only been shown in triclads. This study demonstrates that the early‐branching catenulid Stenostomum virginianum contains photoreceptive refractile bodies, synthesizes endogenous melatonin, and that exogenous ...
Daniel L. Stanton   +5 more
wiley   +1 more source

The Employment of Hydrogen Peroxide in Water Disinfection Poses a Threat to Aquatic Ecosystems Because of Its Toxicity to Nontarget Organisms

open access: yesEnvironmental Toxicology, Volume 41, Issue 10, Page 1060-1068, October 2026.
ABSTRACT Hydrogen peroxide is widely used in water and wastewater treatment, particularly in advanced oxidation processes that aid in the degradation of compounds and microbial disinfection. Despite concerns about potential environmental contamination, its impact on freshwater ecosystems remains inadequately studied.
Letícia Queiroz Almeida   +7 more
wiley   +1 more source

From Plants to Animals: Cross‐Kingdom Infection by Fungal Phytopathogens

open access: yesMycoses, Volume 69, Issue 10, October 2026.
ABSTRACT Plant pathogenic fungi exhibit significant ecological diversity that is under pressure from climate change, yet their relevance to both human and ecosystem health remains underexplored within the One Health framework. Several phytopathogenic lineages have demonstrated the ability to infect vertebrate hosts.
Aditya K. Gupta   +3 more
wiley   +1 more source

Beyond the Classics: The Synergy of AI and Genomics Reveals an Expanded Repertoire of Pigmentation Genes

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 346, Issue 6, Page 475-486, September 2026.
Classical approaches for coloration analysis are limited by human low‐resolution phenotyping and genetic analysis. Artificial intelligence allows us to find genes beyond the tip of the iceberg that explain color and pattern diversity in nature. ABSTRACT Pigmentation has long served as a powerful system for exploring gene–trait relationships, yet much ...
Ehsan Pashay Ahi, Nidal Karagic
wiley   +1 more source

Twisting the End Game: How Telomere Chromatin Modifications Shape Telomere Maintenance

open access: yesAging Cell, Volume 25, Issue 9, September 2026.
Chromatin modifications on telomeres are linked to the mode of telomere DNA replication. A coupled feedforward loop model is proposed based on these to lock the ALT cancer cells in this alternative mode of telomere replication. ABSTRACT Cell division inevitably shortens telomeric DNA owing to the end‐replication problem.
Jie Wang   +8 more
wiley   +1 more source

Home - About - Disclaimer - Privacy