In situ community dynamics influences the temperature- and light- dependent succession of seasonal phytoplankton
To assess the importance of these two parameters experimentally, microcosms were14 conducted on seven picoplankton communities (
Let there be light to interact
Published in Frontiers in Photobiology
Light plays a crucial role in ecological dynamics, both as a consumable resource and as an environmental factor. Prokaryotic and eukaryotic photoautotrophs use light as an energy source for photosynthesis, which forms the basis of food chains and determines the flow of energy and matter in ecosystems. Light availability and quality can influence re...
Photo-Lipids: Light-Sensitive Nano-Switches to Control Membrane Properties.
Published in ChemPlusChem
Biological membranes are described as a complex mixture of lipids and proteins organized according to thermodynamic principles. This chemical and spatial complexity can lead to specialized functional membrane domains enriched with specific lipids and proteins. The interaction between lipids and proteins restricts their lateral diffusion and range o...
Biofilm formation and cell plasticity drive diazotrophy in an anoxygenic phototrophic bacterium
Published in Applied and Environmental Microbiology
The contribution of non-cyanobacterial diazotrophs (NCDs) to total N2 fixation in the marine water column is unknown, but their importance is likely constrained by the limited availability of dissolved organic matter and low O2 conditions. Light could support N2 fixation and growth by NCDs, yet no examples from bacterioplankton exist. In this study...
Timing of outdoor light exposure is associated with sleep-wake consolidation in community-dwelling older men
Published in Frontiers in Sleep
Introduction A consolidated sleep-wake pattern is essential for maintaining healthy cognition in older individuals, but many suffer from sleep fragmentation that exacerbates age-related cognitive decline and worsens overall mental and physical health. Timed light exposure (light therapy) has been explored as a countermeasure, but mixed results have...
Associations between light exposure and sleep timing and sleepiness while awake in a sample of UK adults in everyday lif...
Published in Proceedings of the National Academy of Sciences of the United States of America
Experimental and interventional studies show that light can regulate sleep timing and sleepiness while awake by setting the phase of circadian rhythms and supporting alertness. The extent to which differences in light exposure explain variations in sleep and sleepiness within and between individuals in everyday life remains less clear. Here, we est...
A new perspective of Aristotle’s theory of vision: analysis of the “psycho-physical” intertwined mechanism of vision
Published in Frontiers in Psychology
Aristotle’s visual theory plays a pivotal role in De Anima, he specifically analyzes three fundamental elements required for visual activities, namely, color, transparent substance, and light. Color moves and limits transparent substance, thereby transforming transparent substance from potentiality to actuality through light. However, there is a de...
Genome-Wide Identification and Expression Analysis of bZIP Family Genes in Stevia rebaudiana.
Published in Genes
The basic (region) leucine zippers (bZIPs) are evolutionarily conserved transcription factors widely distributed in eukaryotic organisms. In plants, they are not only involved in growth and development, defense and stress responses and regulation of physiological processes but also play a pivotal role in regulating secondary metabolism. To explore ...
Lights should support circadian rhythms: evidence-based scientific consensus
Published in Frontiers in Photonics
For over a hundred years, the lighting industry has primarily been driven by illumination aesthetics, energy efficiency and product cost with little consideration of the effects of light on health. The recent widespread replacement of traditional light sources by blue-enriched LED lights has heightened concerns about the disruption of the blue-sens...
Day and night effects on the animal and plant kingdoms: The eve of chronobiology.
Published in Chronobiology international
For a long time, cyclical changes in the body were assumed to be caused by the cyclicity of the environment (day-night, seasons). The concept of daily and seasonal changes was first documented in the 18th century by astronomer D'Ortous de Mairan, who demonstrated that plant leaf motions varied depending on the time of day, and by Linné's descriptio...
