Results 51 to 60 of about 8,731 (176)

A Salvage Pathway for Phytol Metabolism in Arabidopsis [PDF]

Journal of Biological Chemistry, 2006
Chlorophyll is the most abundant photosynthetic pigment in higher plants. During senescence, chlorophyll is hydrolyzed, resulting in the release of free phytol and chlorophyllide. Although the degradation of chlorophyllide has been studied in depth, the metabolic fate of phytol in plants is less clear.
Ischebeck, T., Zbierzak, A., Kanwischer, M., Doermann, P.   +3 more
openaire   +3 more sources

Fats, Fire and Bronze Age Funerary Rites: Organic Residue Analysis of Wide Horizontal Rim Vessels From Burial Contexts in Northwest Portugal

Archaeometry, EarlyView.
ABSTRACT This study presents the first GC‐MS–based analyses of wide horizontal rim vessels with well‐defined funerary contexts, from Middle Bronze Age Portugal (Quinta do Amorim 2 and Pego). Organic residues from two vessels revealed ruminant fats and plant oils, alongside molecular markers of heat exposure.
João Vinícius Back, César Oliveira, Ana M. S. Bettencourt, Hugo Aluai Sampaio, Luciano Vilas Boas, Luís Gonçalves   +5 more
wiley   +1 more source

Gas Chromatography-Mass Spectrometry Analysis and α-Glucosidase Inhibitory Activity of n-Hexane Extract of Bilajang Bulu (Merremia Vitifolia) Leaves

Walisongo Journal of Chemistry, 2021
One of the most effective treatments for diabetes mellitus is to inhibit α-glucosidase, which inhibits glucose absorption by the epithelium membrane of the small intestine.
Candra Yulius Tahya, Karnelasatri Karnelasatri   +1 more
doaj   +1 more source

A Chemical Probe for Increasing Leaf Tocopherol Levels by Coordinated Modulation of Biosynthesis, Competition and Storage

Plant Biotechnology Journal, EarlyView.
ABSTRACT Plant biofortification with phytonutrients typically relies on metabolic engineering strategies known as ‘push’ (enhancing biosynthetic flux), ‘block’ (inhibiting competing pathways) and ‘pull’ (promoting metabolite storage). Here, we describe a novel synthetic compound, X57, that simultaneously targets biosynthesis, competition and storage to
Pablo Perez‐Colao, Gaetan Glauser, Jacobo Cruces, Jorge Lozano‐Juste, Manuel Rodriguez‐Concepcion   +4 more
wiley   +1 more source

Mitigating drought stress and enhancing quinoa productivity using iron and zinc nanoparticles

Agrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.
Abstract In recent years, the cultivation area and consumption of quinoa (Chenopodium quinoa Willd) have increased in the country due to its nutritional properties and ability to grow in adverse conditions. Based on climate change scenarios, long periods of drought are expected, which emphasizes the need for planting and developing new plants that are ...
Nasim Pakbaz, Heshmat Omidi, Mohammad Hosein Bijeh Keshavarzi   +2 more
wiley   +1 more source

Phytol and Bacteriochlorophyll Synthesis in Rhodopseudomonas spheroides [PDF]

Plant Physiology, 1972
Phytol has been separated and identified in the unsaponifiable lipid fraction from wild type Rhodopseudomonas spheroides, but it was not detected in mutant strains blocked at various stages of bacteriochlorophyll synthesis. Incorporation of (14)C-acetate into phytol paralleled bacteriochlorophyll synthesis in suspensions of the wild type incubated ...
A E, Brown, J, Lascelles
openaire   +2 more sources

Phytanic acid, an inconclusive phytol metabolite: A review

Current Research in Toxicology, 2023
Phytanic acid (PA: 3,7,11,15-tetramethylhexadecanoic acid) is an important biometabolite of the chlorophyll-derived diterpenoid phytol. Its biological sources (occurrence) and ADME (absorption, distribution, metabolism, and elimination) profile are well-discussed in the literature.
Muhammad Torequl Islam, Md. Shimul Bhuia, João Paulo Martins de Lima, Francisco Paulo Araujo Maia, Ana Beatriz Herminia Ducati, Henrique Douglas Melo Coutinho   +5 more
openaire   +3 more sources

Innovative Biopesticides: Nanoformulation of Mentha Piperita L. and Satureja Montana L. Essential Oils for Controlling the Cotton Bollworm, Helicoverpa armigera Hub.

Nano Select, Volume 7, Issue 3, March 2026.
Chitosan‐based nanocapsules loaded with Mentha piperita and Satureja montana essential oils were evaluated for insecticidal efficacy against Helicoverpa armigera larvae. Nanoformulations demonstrated controlled release, prolonged toxicity, and sublethal effects, offering an eco‐friendly alternative to conventional pesticides.
Naimeh Hosseini, Gholamreza Mahdavinia, Zeinab Ahmadi, Moosa Saber   +3 more
wiley   +1 more source

Heterogeneity of iridoid biosynthesis in catmints: Molecular background in a phylogenetic context

Journal of Integrative Plant Biology, Volume 68, Issue 3, Page 694-718, March 2026.
Evolutionary gains and losses of key biosynthetic genes likely resulting from multiple independent evolutionary events explain why certain Nepeta (catnip) species produce both the active, cat‐attracting nepetalactones and sugar‐bound iridoids, while others make only the sugar‐bound forms, and some have lost iridoid production entirely.
Tijana Banjanac, Milica Milutinović, Dragana Matekalo, Neda Popović, Luka Petrović, Uroš Gašić, Marijana Skorić, Branislav Šiler, Tamara Lukić, Ana Stupar, Slavica Dmitrović, Jasmina Nestorović Živković, Biljana Filipović, Jelena Božunović, Miloš Todorović, Danijela Mišić   +15 more
wiley   +1 more source

Anti-Biofilm and Associated Anti-Virulence Activities of Selected Phytochemical Compounds against Klebsiella pneumoniae

Plants, 2022
The ability of Klebsiella pneumoniae to form biofilm renders the pathogen recalcitrant to various antibiotics. The difficulty in managing K. pneumoniae related chronic infections is due to its biofilm-forming ability and associated virulence factors ...
Idowu J. Adeosun, Itumeleng T. Baloyi, Sekelwa Cosa   +2 more
doaj   +1 more source