Results 61 to 70 of about 1,430 (181)

A cembranoid from tobacco prevents the expression of nicotineinduced withdrawal behavior in planarian worms [PDF]

open access: yes, 2009
Using an adaptation of published behavioral protocols, we determined that acute exposure to the cholinergic compounds nicotine and carbamylcholine decreased planarian motility in a concentration-dependent manner. A tobacco cembranoid (1S,2E,4R,6R,7E,11E)-
Bidja, Apurva H.   +6 more
core   +2 more sources

Manipulation of CBTS1 Expression Alters Tobacco Resistance to Spodoptera frugiperda and Phytophthora nicotianae

open access: yesAgronomy, 2023
Cembranoids produced by tobacco glandular trichomes have bioactivities in resistance to insect pests and pathogens. Cembratrien-ol synthase (CBTS) plays a key role in the biosynthesis of cembranoids and directly determines the cembranoid content in ...
Jian Guan   +8 more
doaj   +1 more source

Review: Marine natural products [PDF]

open access: yes, 2005
This review covers the literature published in 2003 for marine natural products, with 619 citations (413 for the period January to December 2003) referring to compounds isolated from marine microorganisms and phytoplankton, green algae, brown algae, red ...
Blunt, John W.   +4 more
core   +3 more sources

Bioactive Cembranoids from the South China Sea Soft Coral Sarcophyton elegans

open access: yesMolecules, 2015
Four new cembranoids, sarcophelegans A–D (1–4) and six known analogues (5–10) were isolated from the South China Sea soft coral Sarcophyton elegans. Their structures were elucidated through detailed spectroscopic analysis, and the absolute configuration ...
Xin Liu   +6 more
doaj   +1 more source

Protein Targets of Frankincense: A Reverse Docking Analysis of Terpenoids from Boswellia Oleo-Gum Resins

open access: yesMedicines, 2018
Background: Frankincense, the oleo-gum resin of Boswellia trees, has been used in traditional medicine since ancient times. Frankincense has been used to treat wounds and skin infections, inflammatory diseases, dementia, and various other conditions ...
Kendall G. Byler, William N. Setzer
doaj   +1 more source

Effect of Oxylipins, Terpenoid Precursors and Wounding on Soft Corals’ Secondary Metabolism as Analyzed via UPLC/MS and Chemometrics

open access: yesMolecules, 2017
The effect of three oxylipin analogues, a terpenoid intermediate and wounding on the secondary metabolism of the soft corals Sarcophyton glaucum and Lobophyton pauciflorum was assessed. Examined oxylipins included prostaglandin (PG-E1), methyl jasmonate (
Mohamed A. Farag   +4 more
doaj   +1 more source

Terpenoids from the Octocorals Menella sp. (Plexauridae) and Lobophytum crassum (Alcyonacea) [PDF]

open access: yes, 2012
A new germacrane-type sesquiterpenoid, menelloide E (1), and a new cembrane-type diterpenoid, lobocrassin F (2), were isolated from the octocorals Menella sp. and Lobophytum crassum, respectively.
Bayer   +39 more
core   +3 more sources

Briarenols W–Z: Chlorine-Containing Polyoxygenated Briaranes from Octocoral Briareum stechei (Kükenthal, 1908)

open access: yesMarine Drugs, 2021
Briareum stechei is proven to be a rich source of 3,8-cyclized cembranoids (briarane) with a bicyclo[8.4.0] carbon core. In the present study, four previously unreported briaranes, briarenols W–Z (1–4), along with solenolide A (5), briarenolide M (6 ...
You-Ying Chen   +9 more
doaj   +1 more source

Circular dichroism calculation for natural products [PDF]

open access: yes, 2013
Determination of the absolute configuration (AC) is often a challenging aspect in the structure elucidation of natural products. When chiral compounds possess appropriate chromophore(s), electronic circular dichroism (ECD) may provide a powerful approach
Alfarius Eko Nugroho, Hiroshi Morita
core   +1 more source

Structure-Activity Relationship (SAR) Studies to Maximize the Activity of Compounds Isolated from Octocorals [PDF]

open access: yes, 2018
This chapter presents some significant study cases on octocoral organisms (Eunicea succinea, Eunicea mammosa, Eunicea knighti, Pseudoplexaura flagellosa, Eunicea laciniata, Antillogorgia elisabethae, Muricea austera, Paragorgia sp., Lobophyton sp ...
Castellanos, Leonardo   +2 more
core   +2 more sources

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