Results 61 to 70 of about 1,070 (212)

Blue Fluorescent Chlorophyll Catabolites from Banana Leaves Hypermodified with Terpenoidic Groups Related to Abscisic Acid

Helvetica Chimica Acta, Volume 108, Issue 6, June 2025.
Abstract In senescent leaves of banana (Musa acuminata) hypermodified fluorescent chlorophyll (Chl) catabolites (hmFCCs) accumulate and give these leaves an easily observable blue fluorescence. Non‐fluorescent Chl‐catabolites (NCCs) are not detected, the typical colourless Chl‐catabolites that accumulate in most de‐greened plant leaves. Here, we report
Clemens Vergeiner, Bernhard Kräutler
wiley   +1 more source

Studies on the Constituents of Amaranthus caudatus Leaves: Isolation and Structure Elucidation of New Triterpenoid Saponins and Ionol-Derived Glycosides

, 1998
: The isolation of seven triterpenoid saponins (1−7) is reported, among them three new natural products (1−3), together with three new ionol-derived glycosides (8−10) from the MeOH extract of the leaves of Amaranthus caudatus (Amaranthaceae).
Susana Abdo, RASTRELLI, Luca, DE TOMMASI, Nunziatina, Maria Proto, DE SIMONE, Francesco, AQUINO, Rita Patrizia, Francesco De Simone, Rita Aquino, Luca Rastrelli, Nunziatina De Tommasi   +9 more
core   +1 more source

DETERMINATION OF ANTIOXIDANT ACTIVITY OF DRY EXTRACT OF FORSYTHIA DROOPING ON THE MODEL OF FE²⁺ ESCORTINBRISBANE LIPID PEROXIDATION

Современная наука и инновации, 2022
Studied the antioxidant activity of dry extract of forsythia drooping in comparison with synthetic an-tioxidant ionol on the model of Fe2+ escortinbrisbane of lipid peroxidation.
Anton Alekseevich Kobin, Elena Grigorievna Dorkina   +1 more
doaj  

Untargeted and targeted metabolomics approaches to characterise, select and advance cassava pre‐breeding populations with enhanced whitefly tolerance

The Plant Journal, Volume 122, Issue 4, May 2025.
Significance Statement A bi‐parental population has been created from cassava varieties ECU72 and COL2246, which are tolerant and susceptible to whitefly (Bemisia tabaci), respectively. Metabolomic characterisation of the F1 and F2 generations has revealed comparative metabotypes for whitefly tolerance, leading to metabolite biomarkers and sectors of ...
Laura Perez‐Fons, Adriana Bohorquez‐Chaux, Maria Isabel Gomez‐Jimenez, Luis Augusto Becerra Lopez‐Lavalle, Paul D. Fraser   +4 more
wiley   +1 more source

Isolation and Structural Elucidation of Aroma Constituents Bound as Glycosides from Sage (Salvia officinalis)

, 1998
Four glycosidic bound flavor precursors, (1S,2R,4R)-l,8-epoxy-p-menthan-2-yl-O-β-D-glucopyranoside, (6R,9R)-3-oxo-α-ionol β-D-glucopyranoside, (6R,9S)-3-oxo-α-ionol β-D-glucopyranoside, and eugenylglucoside, were isolated from the ethanol extract of ...
Wei, GJ, Ho, CT, Shao, Y, Wang, M, Huang, TC, Tzou-Chi Huang, Guor-Jien Wei, Mingfu Wang, Yu Shao, Chi-Tang Ho   +9 more
core   +1 more source

Norisoprenoids, Sesquiterpenes and Terpenoids Content of Valpolicella Wines During Aging: Investigating Aroma Potential in Relationship to Evolution of Tobacco and Balsamic Aroma in Aged Wine

Frontiers in Chemistry, 2018
During wine aging, tobacco and balsamic aroma notes appear. In this paper, volatile compounds directly or potentially related to those aromas have been investigated in Corvina and Corvinone wines during aging. Corvina and Corvinone are two northern-Italy
Davide Slaghenaufi, Maurizio Ugliano
doaj   +1 more source

Butylated Hydroxytoluene (BHT) Inhibits PIN1 Exocytosis From BFA Compartments in Arabidopsis Roots

Frontiers in Plant Science, 2020
The activity of polarly localized PIN-FORMED (PIN) auxin efflux carriers contributes to the formation of auxin gradients which guide plant growth, development, and tropic responses.
Ivan A. Paponov, Ivan A. Paponov, Vadym Budnyk, Martina Paponov, William Teale, Klaus Palme, Klaus Palme, Klaus Palme   +7 more
doaj   +1 more source

Signal mediators at induction of heat resistance of wheat plantlets by short-term heating [PDF]

The Ukrainian Biochemical Journal, 2015
The effects of functional interplay of calcium ions, reactive oxygen species (ROS) and nitric oxide (NO) in the cells of wheat plantlets roots (Triticum aestivum L.) at the induction of their heat resistance by a short-term influence of hyperthermia ...
Yu. V. Karpets, Yu. E. Kolupaev, T. O. Yastreb   +2 more
doaj   +1 more source

Integrated Microbiome and Metabolomic to Explore the Mechanism of Coptisine in Alleviating Ulcerative Colitis

Phytotherapy Research, Volume 39, Issue 2, Page 676-697, February 2025.
ABSTRACT Coptisine (COP), a naturally occurring alkaloid, is known for its diverse pharmacological effects and its supportive role in intestinal health. Despite this, the detailed mechanisms behind its therapeutic benefits are not yet fully understood.
Wenbin Wu, Yanling Sun, Shengqi Niu, Xing Li, Lisheng Chen, Shuying Xie, Lei Chang, Shizhang Wei, Manyi Jing, Haotian Li, Yanling Zhao   +10 more
wiley   +1 more source

Lipase-mediated synthesis of the enantiomeric forms of 4,5-epoxy-4,5-dihydro-alpha-ionone and 5,6-epoxy-5,6-dihydro-beta-ionone. A new direct access to enantiopure (R)- and (S)-alpha-ionone.

, 1999
Stereoselective lipase-mediated esterifications of epoxy-alpha-ionol 5 and epoxy-beta-ionol 9 afforded suitable precursors of the enantiomers of the corresponding oxidised derivatives epoxy-alpha-ionone 3 and epoxy-beta-ionone 4.
FUGANTI CLAUDIO, ALEU JOSEFINA, SERRA STEFANO, BRENNA ELISABETTA   +3 more
core   +1 more source