Results 141 to 150 of about 46,895 (288)

Analysis of BpbHLH Gene Family Responsive to MeJA Signalling in Betula platyphylla Suk. and Functional Mechanisms of BpbHLH42/44 in Genetic Improvement and Triterpenoid Biosynthesis

open access: yesPlant Biotechnology Journal, Volume 24, Issue 6, Page 4342-4357, June 2026.
ABSTRACT The basic helix–loop–helix (bHLH) transcription factor family regulates plant secondary metabolism, development and stress responses. Although triterpenoids such as betulinic acid (BA), betulin (BT) and oleanolic acid (OA) from Betula platyphylla Suk.
Ying Li   +9 more
wiley   +1 more source

Unveiling protective mechanisms of wild olive (acebuche) oil in retinal pigment epithelial cells with hypertensive phenotype

open access: yesThe Journal of Physiology, Volume 604, Issue 11, Page 4166-4185, 1 June 2026.
Abstract figure legend Circulating extracellular vesicles (EVs) derived from acebuche (ACE) oil‐ and extra virgin olive oil (EVOO)‐fed mice modulate nitric oxide (NO) metabolism in the retinal pigment epithelial cell line (ARPE19) with a hypertensive phenotype induced by angiotensin II (AngII).
Álvaro Santana‐Garrido   +6 more
wiley   +1 more source

26 - First Partial Total Synthesis of Triterpenes

open access: yes
Triterpenes are natural products with notable cytotoxic activity against human lung carcinoma cells. This research focuses on developing the enantiomer of the left-winged fragment of one of the triterpenes using readily available farnesol with two key ...
Weierbach, Shayne M   +2 more
core  

Triterpenes from Elingamita johnsonii G.T.S.Baylis (Myrsinaceae)

open access: yes, 1993
The triterpenes a-amyrin, P-amyrin, and bauerenol have been isolated from the wood and leaves of Elingamita johnsonii.
Rutledge, P.S.   +3 more
core  

Cytotoxicity of triterpenes isolated from Aceriphyllum rossii

open access: yes, 2007
Bioassay-guided fractionation of a MeOH extract of the whole plant of Aceriphyllum rossii (Saxifragaceae) led to the isolation of two new triterpenes, 3 α,23-isopropylidenedioxyolean-12-en-27-oic acid (1) and 23-hydroxy-3-oxoolean-12-en-27-oic acid (2 ...
I Lee   +12 more
core   +1 more source

Dammarane triterpenes from the resins of Commiphora confusa

open access: yes, 2002
The resin of Commiphora confusa afforded two new dammarane triterpenes, (3R,20S)-3,20-dihydroxydammar-24-ene and (3R,20S)-3-acetoxy-20-hydroxydammar-24-ene along with the known triterpenes, cabraleadiol 3-acetate and &alpha ...
Dagne, Ermias   +9 more
core   +1 more source

Cytotoxic triterpenes from the aerial roots of Ficus microcarpa

open access: yes, 2008
[[abstract]]Six triterpenes, 3beta-acetoxy-12,19-dioxo-13(18)-oleanene (1), 3beta-acetoxy-19(29)-taraxasten-20alpha-ol (2), 3beta-acetoxy-21alpha,22alpha-epoxytaraxastan-20alpha-ol (3), 3,22-dioxo-20-taraxastene (4), 3beta-acetoxy-11alpha, 12alpha-epoxy ...
Chiang, YM; Chang, JY; Kuo, CC; Chang, CY; Kuo, YH
core   +1 more source

Chemical Composition and Insecticidal Activity of Eschweilera jefensis Organic Extracts Against Aphis gossypii

open access: yesAgronomy
Aphis gossypii is a major pest that harms crops like industrial tomatoes in Panama. Recent resistance to synthetic insecticides has prompted interest in using plant secondary metabolites as eco-friendly alternatives.
Lilia Chérigo   +4 more
doaj   +1 more source

Constituintes químicos de Luehea divaricata Mart. (Tiliaceae)

open access: yesQuímica Nova, 2005
Chemical studies of the leaves of L. divaricata afforded 3beta-p-hydroxybenzoyl-tormentic acid, a triterpene with an ursene-type skeleton, a mixture whose main compound was an oleanene derivative, the maslinic acid, a C-glycoside flavone, vitexin and ...
Tanaka Júlio Cesar Akio   +5 more
doaj  

Triterpenos isolados de Eschweilera longipes miers (Lecythidaceae)

open access: yesQuímica Nova, 1998
The phytochemical studies of Eschweilera longipes have led to the identification of ten triterpenoids: fridelin, fridelinol, alpha-amirin, beta-amirin, 3beta-O-cinamoyl-alpha-amirin, 3beta-O-cinamoyl-beta-amirin, alpha-amirenone, beta-amirenone, 3-alpha ...
Carvalho Mario Geraldo de   +3 more
doaj  

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