Results 81 to 90 of about 12,819 (218)

Surface‐Ligand‐Dependent Excited‐State Dynamics in Aqueous CuInSe2/ZnS Quantum Dot–Chlorophyll Assemblies

open access: yesAdvanced Materials Interfaces, Volume 13, Issue 12, 23 June 2026.
CuInSe2/ZnS quantum dots are synthesized in water and coupled with chlorophyll to probe ligand‐controlled excited‐state interactions. Broad visible–NIR emission and high PLQY are observed. Time‐resolved measurements reveal shortened chlorophyll lifetimes, indicating dynamic quenching via Förster energy and/or charge transfer, highlighting surface ...
Özge İbiş   +3 more
wiley   +1 more source

Bacterial Pigments as Potential Antitumor Agents Against Gastrointestinal Cancers: A Comprehensive Systematic Review

open access: yesBiotechnology and Applied Biochemistry, Volume 73, Issue 3, Page 1626-1646, June 2026.
ABSTRACT Gastrointestinal cancers (GICs) constitute one of the leading causes of cancer‐related morbidity and mortality worldwide. Despite currently available therapeutic strategies, new approaches and procedures are needed for their prevention and treatment.
Raúl Vergara   +5 more
wiley   +1 more source

Engineering a Hybrid Heme Pathway for Hemoprotein‐Based Dye‐Decolorizing Peroxidase in Escherichia coli

open access: yesFood Bioengineering, Volume 5, Issue 2, Page 209-219, June 2026.
In this study, the heme content and enzymatic activity of the RhDypB mutant strain RhDypB‐R80 were enhanced through optimized heme uptake and pathway integration. This engineered host presents a promising platform for hemoprotein engineering and holds potential for applications in controlling mycotoxin contamination in food products.
Yue Sun   +7 more
wiley   +1 more source

Crystallization and preliminary X-ray characterization of the tetrapyrrole-biosynthetic enzyme porphobilinogen deaminase from Bacillus megaterium [PDF]

open access: yes, 2013
The enzyme porphobilinogen deaminase (PBGD; hydroxymethylbilane synthase; EC 2.5.1.61) catalyses an early step of the tetrapyrrole-biosynthesis pathway in which four molecules of the monopyrrole porphobilinogen are condensed to form a linear tetrapyrrole.
Azim, N   +17 more
core   +1 more source

Apple scar skin viroid causes dapple and scar skin apple diseases by disrupting phenylpropanoid‐mediated metabolic pathways

open access: yesNew Plant Protection, Volume 3, Issue 2, June 2026.
Dapple apple and scar skin apple diseases are closely associated with suppression of anthocyanin biosynthesis and enhancement of suberin biosynthesis. Apple scar skin viroid (ASSVd) infection represses anthocyanin biosynthesis in apple callus. Abstract Apple scar skin viroid (ASSVd) causes dapple and scar skin apple diseases, posing serious threats to ...
Lingzhu He   +9 more
wiley   +1 more source

Catabolism of Tetrapyrroles

open access: yesCHIMIA, 1994
The enzymatic degradation of naturally occurring tetrapyrrolic pigments (heme, chlorophylls, and vitamin B12) is shortly reviewed.
openaire   +3 more sources

(Table 2) Tetrapyrrole pigment classes separated from DSDP Hole 71-511 samples [PDF]

open access: yes, 1985
Sediment depth is given in mbsf. Tetrapyrrole pigmenst are given in molar %
Earl W Baker (6981329)   +3 more
core   +1 more source

Under the Cover of Darkness: A Transcriptomic Exploration of Clubroot During the Night

open access: yesPlant Direct, Volume 10, Issue 6, June 2026.
ABSTRACT Plasmodiophora brassicae (Phytomyxea, Rhizaria) is the etiological agent of clubroot disease, one of the most important diseases of Brassicaceae crops. Alteration of metabolism and hormone homeostasis leads to the formation of tumor‐like galls in the roots of affected plants.
Andrea Garvetto   +5 more
wiley   +1 more source

The transcriptional response of Arabidopsis leaves to Fe deficiency

open access: yesFrontiers in Plant Science, 2013
Due to its ease to donate or accept electrons, iron (Fe) plays a crucial role in respiration and metabolism, including tetrapyrrole synthesis, in virtually all organisms.
Jorge eRodriguez-Celma   +5 more
doaj   +1 more source

Benzoxazinoid‐mediated microbiome feedbacks enhance Arabidopsis growth and defence

open access: yesNew Phytologist, Volume 250, Issue 5, Page 3334-3348, June 2026.
Summary Plants modulate their surrounding microbiome via root exudates and such conditioned soil microbiomes feed back on the performance of the next generation of plants. How plants perceive altered soil microbiomes and modulate their performance in response to such microbiome feedbacks, however, remains largely unknown.
Katja Stengele   +5 more
wiley   +1 more source

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