Results 61 to 70 of about 4,716 (164)

Optical Properties of Living Corals Determined With Diffuse Reflectance Spectroscopy

Frontiers in Marine Science, 2019
The internal light field and thus light exposure of the photosymbiotic microalgae (Symbiodinium sp.) in corals is strongly modulated by the optical properties of coral tissue and skeleton.
Steven L. Jacques, Daniel Wangpraseurt, Daniel Wangpraseurt, Daniel Wangpraseurt, Michael Kühl, Michael Kühl   +5 more
doaj   +1 more source

The CONSTANS flowering complex controls the protective response of photosynthesis in the green alga Chlamydomonas

Nature Communications, 2019
In flowering plants, the CONSTANS (CO) and Nuclear Factor Y (NF-Y) transcription factors connect light perception to floral induction. Here Tokutsu et al.
Ryutaro Tokutsu, Konomi Fujimura-Kamada, Takuya Matsuo, Tomohito Yamasaki, Jun Minagawa   +4 more
doaj   +1 more source

PhotoBiology Station for Plant–Light Interactions Studies in Field Conditions

Journal of Agronomy and Crop Science, Volume 212, Issue 2, March 2026.
ABSTRACT Light is a primary source of energy for photosynthesis and a fundamental signal that governs plant morphology and growth dynamics through well‐orchestrated signalling pathways. In field conditions, light intensity and quality, as well as other variables, constantly change throughout the day.
Yan Lucas Leite, Luana Gabriela Gallert, Gabriel Dias Gomes, Lucas Gaia Romagnoli, Maria Luísa Matos da Silva, Thaís Millena Marques Couto, Wellington Ferreira Campos   +6 more
wiley   +1 more source

Terapêutica fotodinâmica com ácido delta-aminolevulínico em neoplasias queratinocíticas superficiais Photodynamic therapy with delta-aminolevulinic acid for superficial keratinocytic neoplasms

Anais Brasileiros de Dermatologia, 2003
FUNDAMENTOS: A terapêutica fotodinâmica (TFD) é técnica de tratamento em que são aplicadas, nos tecidos, substâncias fotossensibilizantes, posteriormente ativadas com luzes de comprimentos de onda específicos, com a finalidade de produzir destruição ...
Renato Marchiori Bakos, Lucio Bakos, Elton Ferlin, Tania Cestari, Tobias Orlandini, Roberto Rezende, Carolina Peukert, Clarissa Berti, Emileine Di Domenico   +8 more
doaj   +1 more source

222 nm far‐UVC light and skin health: Assessment of DNA damage across different skin types

Photochemistry and Photobiology, Volume 102, Issue 2, Page 400-410, March/April 2026.
Germicidal 222 nm far‐UVC has been proposed as an effective technology for pandemic control that can be used in indoor venues even when people are present. 222 nm light is not predicted to damage skin because it is primarily absorbed by the proteins in the superficial stratum corneum of the epidermis. Here, the stratum corneum thickness was measured in
Manuela Buonanno, Camryn Petersen, David Welch, Raabia Hashmi, David J. Brenner   +4 more
wiley   +1 more source

Functional insights into the photoactive yellow protein family from homologs, multidomain proteins, and inferred pyp operons

Journal of Bacteriology
Photoactive Yellow Protein (PYP) is a model system for functional protein dynamics and a prototype of the PAS domain superfamily. It is a bacterial photoreceptor that triggers a range of responses in different bacteria: phototaxis, biosynthesis of photo ...
Rosalie L. Dohmen, Gunnar Hoogerwerf, Amber J. Dohmen, Madison L. Neal, Catalina Bradley, Clarice Huffman, Sarah M. Teeman, Saylor F. Hampton, Scout Powell, Zariah Gunn, Wouter D. Hoff   +10 more
doaj   +1 more source

Thermoluminescence (TL) Measurements in Tobacco Leaves

Bio-Protocol, 2013
TL measurement is a useful tool for studying charge stabilization and subsequent recombination in photosystem II (PSII) in higher plants and cyanobacteria.
ding Shunhua, Xiaogang Wen, Congming Lu
doaj   +1 more source

The Peroxisome Proliferator-Activated Receptor Gamma System Regulates Ultraviolet B-Induced Prostaglandin E2 Production in Human Epidermal Keratinocytes

PPAR Research, 2010
Studies using PPARγ agonists in mouse skin have suggested that peroxisome proliferator-activated receptor gamma (PPARγ) is irrelevant to cutaneous photobiology.
Raymond L. Konger, Kellie Clay Martel, Danielle Jernigan, Qiwei Zhang, Jeffrey B. Travers   +4 more
doaj   +1 more source

Genotype by light quality interaction on the growth and development of quinoa (Chenopodium quinoa) and the crop response to salinity

Frontiers in Plant Science
Quinoa (Chenopodium quinoa Willd.) is a highly nutritious crop with remarkable tolerance to drought and salinity, making it a promising model for developing resilient crops. In model plant species, photoreceptors have been shown to mediate abiotic stress
Milton Gordillo-Romero, María de Lourdes Torres, Viviana Jaramillo Román, Daniel Dávila, Renato Morales-Acuña, Andrés F. Torres, Andrés F. Torres, Sofia D. Carvalho   +7 more
doaj   +1 more source

Editorial: Cannabis Genomics, Breeding and Production

Frontiers in Plant Science, 2020
Rachel Backer, Giuseppe Mandolino, Olivia Wilkins, Mahmoud A. ElSohly, Donald L. Smith   +4 more
doaj   +1 more source