Results 101 to 110 of about 32,287 (235)

Diterpenes from Laennecia sophiifolia

open access: yesPhytochemistry, 2000
From the aerial parts of Laennecia sophiifolia (Kunth) G.L. Nesom, a neo-clerodane and an acyclic furano diterpene were isolated, along with four known compounds, 2beta-hydroxyhardwickiic acid, hawtriwaic acid, apigenin, and beta-sitosterol. Their structures were established as 12-epi-bacchotricuneatin A and (2E,6E)-9-(3-furyl)-6-methyl-2-(4-methylpent-
Simirgiotis, Mario J.   +6 more
openaire   +3 more sources

Chemical Profiling and Biological Activity of Copaiba Oil‐Resin Samples and Development of HPLC‐DAD Method for the Analysis of β‐Caryophyllene

open access: yesBiomedical Chromatography, Volume 40, Issue 5, May 2026.
ABSTRACT The Copaifera species are traditionally used for their anti‐inflammatory, antiseptic and healing properties. The objective of this study was to compare the chromatographic profiles of seven samples of copaiba oil‐resin with respect to chromatographic and physicochemical properties and to evaluate their biological activities.
Gabriel de A. P. Graça   +13 more
wiley   +1 more source

Evaluation of Agave angustifolia as a Sustainable Alternative to Synthetic Pesticides: Phytochemical Composition and Multi‐Trophic Bioactivity

open access: yesFlavour and Fragrance Journal, Volume 41, Issue 3, Page 656-672, May 2026.
The pesticidal potential of Agave angustifolia by assessing its anti‐nematic, antimicrobial, and insecticidal activities, alongside phytochemical profiling. ABSTRACT Plant diseases caused by fungi, bacteria, nematodes, and viruses contribute significantly to annual crop losses and economic hardship. Reliance on chemical pesticides, over a thousand used
Rashika Tamta   +7 more
wiley   +1 more source

Euphosantianane A–D: Antiproliferative Premyrsinane Diterpenoids from the Endemic Egyptian Plant Euphorbia Sanctae-Catharinae

open access: yesMolecules, 2018
Euphorbia species are rich in diterpenes. A solvent extraction of Euphorbia sanctae-catharinae, a species indigenous to the Southern Sinai of Egypt, afforded several premyrsinane diterpenoids (1–4) as well as previously reported metabolites (5 ...
Mohamed-Elamir F. Hegazy   +11 more
doaj   +1 more source

Hericium erinaceus Extracts Exert Gastroprotective Effects Through Modulation of the Gut Microbiota and Metabolites

open access: yesFood Science &Nutrition, Volume 14, Issue 5, May 2026.
WEHE attenuates gastric injury by modulating the “gut microbiota–metabolites” axis. ABSTRACT Hericium erinaceus (H. erinaceus) is a traditional edible and medicinal fungus with a long history of use in gastrointestinal protection. Although its therapeutic potential in gastric health has been widely acknowledged, the underlying mechanisms by which it ...
Ruixin Bei   +4 more
wiley   +1 more source

Chemical Constituents and Biological Potentials of Teucrium scordium subsp. scordioides Extracts: In Vitro Experimental and In Silico Perspectives

open access: yesChemistryOpen, Volume 15, Issue 5, May 2026.
T. scordium subsp. scordioides may represent a natural source of antioxidants and enzyme inhibitors for use in different health‐promoting formulations. This study was undertaken to examine, for the first time, the antioxidant and enzyme inhibitory properties of several extracts obtained from the aerial parts of Teucrium scordium subsp.
Bengusu Hacer Akgul   +9 more
wiley   +1 more source

A natural variation within duplicated AsWRKY49‐D2 drives the subgenomic functional divergence of homeologs in salt response of allohexaploid oats

open access: yesJournal of Integrative Plant Biology, Volume 68, Issue 5, Page 1367-1383, May 2026.
Transcriptome analysis of oats under salt stress identified ten important salt‐responsive transcription factor families, which show extensive functional divergence among three oat subgenomes. Further integration with a genome‐wide association study under salt stress identified the AsWRKY49‐D2 gene, whose elite haplotype holds substantial potential for ...
Cailian Du   +12 more
wiley   +1 more source

Viability of endophytic fungus in different perennial ryegrass (Lolium perenne) varieties kept in different storage conditions : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science at Massey University, Manawatū, New Zealand [PDF]

open access: yes, 2017
Epichloë endophytes form symbiotic relationships with cool-season grasses of the Pooideae family and are known to synthesise a range of bio-protective alkaloids.
Kitson, Elizabeth Rose
core  

Labdane Diterpenes from Haplopappus Illinitus

open access: yesNatural Product Letters, 2002
A chemical study of aerial parts of Haplopappus illinitus afforded five labdane diterpenoids whose structures were elucidated by high field NMR spectroscopy and 2D techniques. Four of them are dicarboxylic acids previously reported as the corresponding dimethyl ester derivatives and the fifth is a new compound.
Faini, Francesca   +4 more
openaire   +4 more sources

Mass Spectrometry Imaging Combined With Single‐Cell Transcriptional Profiling Reveals the Multidimensional Spatial Distributions and Biosynthetic Pathways of Medicinal Components in Andrographis paniculata

open access: yesPlant Biotechnology Journal, Volume 24, Issue 5, Page 2876-2890, May 2026.
ABSTRACT The synthesis and accumulation of active ingredients in medicinal plants are distributed in specific organs, tissues, and cell types, which are important for the exploitation of medicinal plants. However, the fine distribution of active ingredients is difficult to know. Here, the system of mass spectrometry imaging (MSI) integrated with single‐
HaiSheng Zeng   +14 more
wiley   +1 more source

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