Results 51 to 60 of about 11,005 (181)

Ultrafast Dynamics of Sb-Corroles: A Combined Vis-Pump Supercontinuum Probe and Broadband Fluorescence Up-Conversion Study

Molecules, 2017
Corroles are a developing class of tetrapyrrole-based molecules with significant chemical potential and relatively unexplored photophysical properties.
Clark Zahn, Till Stensitzki, Mario Gerecke, Alexander Berg, Atif Mahammed, Zeev Gross, Karsten Heyne   +6 more
doaj   +1 more source

MdPHYB2‐MdPIF1 Module Regulates Transcription Factors to Mediate Light‐Dependent ALA‐Induced Apple Anthocyanin Biosynthesis

Plant, Cell &Environment, EarlyView.
ABSTRACT Light is a primary environmental signal that induces plant anthocyanin accumulation. The plant growth regulator 5‐aminolevulinic acid (ALA) has also been proven to effectively promote anthocyanin accumulation in apple. However, the underlying regulatory mechanisms remain unknown.
Liuzi Zhang, Yuyan An, Jianting Zhang, Liangju Wang   +3 more
wiley   +1 more source

Time‐series multi‐omics analysis of micronutrient stress in Sorghum bicolor reveals iron and zinc crosstalk and regulatory network conservation

Plant Biology, EarlyView.
Overlap between Fe and Zn responsive gene regulatory networks (GRNs) were found, indicative of micronutrient crosstalk, and conservation of root and leaf GRNs and genes suggests strong constraint on homeostasis networks in plants. Abstract Micronutrient stress impacts growth, biomass production, and grain yield in crops.
A. Mishra, A. Bhat, S. Kumari, R. Sharma, J. Braynen, D. Tadesse, S. El Alaoui, S. Seaver, N. Grosjean, D. Ware, M. Xie, T. Paape   +11 more
wiley   +1 more source

Identification of Putative Biosynthetic Gene Clusters for Tolyporphins in Multiple Filamentous Cyanobacteria

Life, 2021
Tolyporphins A–R are unusual tetrapyrrole macrocycles produced by the non-axenic filamentous cyanobacterium HT-58-2. A putative biosynthetic gene cluster for biosynthesis of tolyporphins (here termed BGC-1) was previously identified in the genome of HT ...
Xiaohe Jin, Yunlong Zhang, Ran Zhang, Kathy-Uyen Nguyen, Jonathan S. Lindsey, Eric S. Miller   +5 more
doaj   +1 more source

Saturating mutagenesis on the Ser118 residue responsible for the spectral tuning mechanism of the orange/green‐reversible cyanobacteriochrome AM1_1499g1

Plant Biology, EarlyView.
This graphical abstract illustrates our systematic site‐saturation mutagenesis at the Ser118 position of the AM1_1499g1 GAF domain. By replacing this single residue, we generated a diverse array of variants with distinct spectral properties, demonstrating the remarkable molecular plasticity of cyanobacteriochromes and their customizability for ...
A. Yoneda, T. Suzuki, R. Narikawa
wiley   +1 more source

Expanding the Energetic Limits of Photosynthesis for Broad‐Spectrum Plant Design: Insights From Far‐Red Photosystem I

Modern Agriculture, Volume 4, Issue 2, December 2026.
Consoli et al. mapped eight Chl f‐binding sites in far‐red‐light‐acclimated photosystem I (FR PSI). Structural and spectroscopic evidence supports the involvement of Chl f at the A−1B site in primary charge separation and indicates that its protein microenvironment modulates redox properties.
Yufan Fu, Chengshuai Xu, Yuyong Hou, Lei Zhao   +3 more
wiley   +1 more source

Conformational heterogeneity of the Pfr chromophore in plant and cyanobacterial phytochromes

Frontiers in Molecular Biosciences, 2015
Phytochromes are biological photoreceptors that can be reversibly photoconverted between a dark and photoactivated state. The underlying reaction sequences are initiated by the photoisomerisation of the tetrapyrrole cofactor, which in plant and ...
Francisco eVelazquez Escobar, David evon Stetten, David evon Stetten, Mina eGünther-Lütkens, Anke eKeidel, Norbert eMichael, Tilman eLamparter, Lars-Oliver eEssen, Jon eHughes, Wolfgang eGärtner, Yang eYang, Karsten eHeyne, Maria Andrea eMroginski, Peter eHildebrandt   +13 more
doaj   +1 more source

Evolutionary insights into bilin biosynthesis: Functional characterization of pre‐PcyA enzymes

Protein Science, Volume 35, Issue 9, September 2026.
Abstract Biosynthesis of the linear tetrapyrrole phycocyanobilin (PCB) by the ferredoxin‐dependent bilin reductase (FDBR) PcyA is essential for light‐harvesting and regulatory processes in diverse photosynthetic organisms, yet its evolutionary origins are not fully understood. PcyA evolved from pre‐PcyA proteins found in diverse bacteria.
Federica Frascogna, Nathan C. Rockwell, Gunhild Layer, Nicole Frankenberg‐Dinkel   +3 more
wiley   +1 more source

Natural Photosensitizers in Cancer Therapy: A Chemo‐Biodiversity Perspective on Light‐Activated Natural Compounds

Chemistry &Biodiversity, Volume 23, Issue 8, August 2026.
Natural photosensitizers, shaped by chemo‐biodiversity and evolution, offer diverse photoactive scaffolds for PDT. This review highlights their structure–activity relationships, photophysical properties, and nanotechnology‐based strategies to enhance efficacy, while addressing translational challenges and demonstrating how nature's molecular diversity ...
Isaac Baidoo, Heidi Abrahamse, Blassan P. George   +2 more
wiley   +1 more source

Evolution of the Tetrapyrrole Biosynthetic Pathway in Secondary Algae: Conservation, Redundancy and Replacement. [PDF]

PLoS ONE, 2016
Tetrapyrroles such as chlorophyll and heme are indispensable for life because they are involved in energy fixation and consumption, i.e. photosynthesis and oxidative phosphorylation.
Jaromír Cihlář, Zoltán Füssy, Aleš Horák, Miroslav Oborník   +3 more
doaj   +1 more source