Results 41 to 50 of about 18,931 (242)

Genetic Mapping of a Light-Dependent Lesion Mimic Mutant Reveals the Function of Coproporphyrinogen III Oxidase Homolog in Soybean

open access: yesFrontiers in Plant Science, 2020
Lesion mimic mutants provide ideal genetic materials for elucidating the molecular mechanism of cell death and disease resistance. Here, we isolated a Glycine max lesion mimic mutant 2-1 (Gmlmm2-1), which displayed a light-dependent cell death phenotype.
Jingjing Ma   +9 more
doaj   +1 more source

Tolyporphins A–R, unusual tetrapyrrole macrocycles in a cyanobacterium from Micronesia, assessed quantitatively from the culture HT-58-2

open access: yes, 2021
Tolyporphins A–R are the newest additions to the family of native tetrapyrroles. LC-MS-dMRM and absorption spectroscopy have been employed for analysis of mixtures containing the 18 distinctive natural products.
T. J. O'Donnell   +5 more
semanticscholar   +1 more source

Removal of Chromophore-proximal Polar Atoms Decreases Water Content and Increases Fluorescence in a Near Infrared Phytofluor

open access: yesFrontiers in Molecular Biosciences, 2015
Genetically encoded fluorescent markers have revolutionized cell and molecular biology due to their biological compatibility, controllable spatiotemporal expression, and photostability.
Heli eLehtivuori   +5 more
doaj   +1 more source

A Suppressor Mutation Partially Reverts the xantha Trait via Lowered Methylation in the Promoter of Genomes Uncoupled 4 in Rice

open access: yesFrontiers in Plant Science, 2019
The xantha trait of a yellow leaf rice mutant (HYB), controlled epigenetically by elevated CHG methylation of the genomes uncoupled 4 (OsGUN4) promoter, has reduced chlorophyll content, altered tetrapyrrole biosynthesis, and deregulated transcription of ...
Meng Jiang   +13 more
doaj   +1 more source

The Functions of Chloroplast Glutamyl-tRNA in Translation and Tetrapyrrole Biosynthesis1[OPEN]

open access: yesPlant Physiology, 2020
The generation and characterization of transplastomic tobacco plants provide insight into the dual role of the chloroplast glutamyl-tRNA in protein biosynthesis and tetrapyrrole biosynthesis.
Shreya Agrawal   +3 more
semanticscholar   +1 more source

Different spectrum of Arabidopsis CHLH/GUN5 protein functions in tetrapyrrole metabolism, plastid signaling and ABA responses in guard cells

open access: yesFrontiers in Plant Science, 2016
Expression of Photosynthesis-Associated Nuclear Genes (PhANGs) is controlled by environmental stimuli and plastid-derived signals (plastid signals) transmitting the developmental and functional status of plastids to the nucleus.
Harue Ibata   +2 more
doaj   +1 more source

Vibrational Spectroscopy of Phytochromes

open access: yesBiomolecules, 2023
Phytochromes are biological photoswitches that translate light into physiological functions. Spectroscopic techniques are essential tools for molecular research into these photoreceptors.
Peter Hildebrandt
doaj   +1 more source

Boron-containing tetrapyrroles

open access: yesTURKISH JOURNAL OF CHEMISTRY, 2014
The recent advances in the synthesis of carborane and boronic ester-substituted tetrapyrroles (porphyrins, porphyrazines, and phthalocyanines) are reviewed together with their possible utilization as agents for photodynamic therapy (PDT) and boron neutron capture therapy of cancer (BNCT) as well as dual PDT/BNCT sensitizers.
Ozcelik, Sennur, Gul, Ahmet
openaire   +3 more sources

Barley Plants Overexpressing Ferrochelatases (HvFC1 and HvFC2) Show Improved Photosynthetic Rates and Have Reduced Photo-Oxidative Damage under Drought Stress than Non-Transgenic Controls

open access: yesAgronomy, 2020
We investigated the roles of two Ferrochelatases (FCs), which encode the terminal enzyme for heme biosynthesis, in drought and oxidative stress tolerance in model cereal plant barley (Hordeum vulgare).
Dilrukshi S. K. Nagahatenna   +4 more
doaj   +1 more source

Development of a growth-coupled selection platform for directed evolution of heme biosynthetic enzymes in Corynebacterium glutamicum

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Heme is an important tetrapyrrole compound, and has been widely applied in food and medicine industries. Although microbial production of heme has been developed with metabolic engineering strategies during the past 20 years, the production levels are ...
Yingyu Zhou   +24 more
doaj   +1 more source

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