Results 21 to 30 of about 1,127 (123)

Morphological ontogeny and growth patterns of gold‐ringed octopus Amphioctopus fangsiao: Implications for aquaculture development

open access: yesJournal of the World Aquaculture Society, Volume 57, Issue 3, June 2026.
Abstract To evaluate the aquaculture potential and developmental characteristics of the holobenthic octopus Amphioctopus fangsiao, we conducted artificial breeding and continuous rearing of Amphioctopus fangsiao from hatching to 150 days post‐hatching (dph) under laboratory conditions using broodstock collected from Fujian, China.
Juanwen Yu   +5 more
wiley   +1 more source

Unreliability of carotenoid electrochromism for the measure of electrical potential differences induced by ATP hydrolysis in bacterial chromatophores [PDF]

open access: yesFEBS Letters, 1995
ATP hydrolysis induces the activation of the proton ATPase in chromatophores of Rhodobacter capsulatus supplemented with nigericine and 50 mM K+ (i.e. when ΔpH < 0.2 units). The value of transmembrane electric potential (Δϕ) driving this activation was measured using three different approaches: carotenoid electrochromism, uptake of SCN− and ...
Crimi, Massimo   +3 more
openaire   +4 more sources

Synthetic Cells on Demand: From Molecular Stimuli to Cellular Functions

open access: yesChemSystemsChem, Volume 8, Issue 2, March 2026.
ABSTRACT Synthetic cells constructed via bottom‐up approaches using lipid or polymer vesicles have become essential tools for mimicking cellular functions and studying synthetic biological systems. These vesicles can undergo morphological changes and trigger internal reactions in response to external stimuli, such as osmotic pressure, temperature, pH ...
Masato Suzuki, Koki Kamiya
wiley   +1 more source

Freshwater and Sediment Host Distinct Yet Overlapping Microeukaryotic Communities, With Sediment Communities Less Impacted by Treated Wastewater

open access: yesJournal of Eukaryotic Microbiology, Volume 73, Issue 2, March/April 2026.
ABSTRACT Freshwater and sediment environments host diverse microeukaryotic communities that differ in structure and composition, yet exhibit taxonomic overlap. Using 18S V9 rRNA gene sequencing, we compared communities from these habitats in controlled 10‐day mesocosm experiments, examining diversity, overlap, and responses to treated wastewater (TWW).
Radtke Kim   +3 more
wiley   +1 more source

Database of low‐temperature absorption and fluorescence spectra of native photosynthetic tetrapyrrole macrocycles

open access: yesPhotochemistry and Photobiology, Volume 102, Issue 2, Page 457-469, March/April 2026.
The absorption and fluorescence spectra at 77 K (frozen glass) and room temperature (fluid solution) are provided for 12 native photosynthetic macrocycles encompassing one porphyrin, eight chlorins, and 3 bacteriochlorins. Abstract Low‐temperature (77 K) absorption and fluorescence spectra of 12 naturally occurring photosynthetic tetrapyrrole ...
Dariusz M. Niedzwiedzki   +2 more
wiley   +1 more source

Evolution of molecular communication in the permanent Azolla symbiosis

open access: yesNew Phytologist, Volume 249, Issue 4, Page 1666-1674, February 2026.
Summary Heritable symbioses exist across eukaryotes with different degrees of intimacy. In most cases, the symbionts are obligate and require inheritance for their survival. On the host side, symbiont retention can facilitate fitness benefits. Only rarely are these symbioses interwoven to the point that host survival relies on the symbiont.
Deren Büyüktaş   +2 more
wiley   +1 more source

Phytochemical Screening of 45‐Million‐Year‐Old Colored Angiosperm Leaves Reveals Distinctive Chlorophyll‐Derived and Polyphenolic Pigments

open access: yesGeobiology, Volume 24, Issue 1, January/February 2026.
ABSTRACT Present‐day angiosperm plants produce a plethora of metabolites including pigments that serve for important functions such as photosynthesis, protection against light, attraction of pollinators, and defense against microbes and herbivores. However, little is known about phytochemical constituents of ancient angiosperms, their distribution in ...
Klaus Wolkenstein   +5 more
wiley   +1 more source

Pigments, Chromatophore Structure, and Gene Expression Underlying Colour Polytypy of a Panamanian Poison Frog

open access: yesMolecular Ecology, Volume 35, Issue 1, January 2026.
ABSTRACT Colour polytypism represents an example of phenotypic diversification shaped by genetic divergence and ecological pressures. Poison frogs of the genus Oophaga (Dendrobatidae) are highly polytypic in coloration, making them an ideal system for investigating the genetic and physiological basis of colour variation.
Vasiliki Mantzana‐Oikonomaki   +7 more
wiley   +1 more source

Evaluation of Post‐Mortem Colour Changes in Fish Eye, Gills and Skin Using Hyperspectral Imaging

open access: yesAquaculture Research, Volume 2026, Issue 1, 2026.
Freshness is one of the critical attributes of fish quality and is of great importance in aquaculture, as post‐mortem changes can affect consumer acceptance and market value. This study aims to assess the potential use of hyperspectral imaging to determine colour parameters and monitor colour changes in three aquaculture fish species (Sparus aurata ...
Konstantina E. Gleni   +4 more
wiley   +1 more source

Combined Efficacy of Curcuma longa and Spirulina platensis Enhancing Growth, Immunity, Coloration, and Resilience to Ammonia Stress in Balloon Molly, Poecilia sphenops

open access: yesAquaculture Research, Volume 2026, Issue 1, 2026.
Turmeric (TUR), Curcuma longa, is rich in bioactive substances, and spirulina (SPR), Spirulina platensis, is a source of protein that is highly digestible. This research investigated the combined effects of dietary C. longa and Spirulina platensis on the growth, nutritional composition, coloration, immunity, and gill health of balloon molly fish ...
Attia A. Abou Zaid   +15 more
wiley   +1 more source

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