Results 51 to 60 of about 14,560 (215)

Labdane-Type Diterpenes, Galangalditerpenes A–C, with Melanogenesis Inhibitory Activity from the Fruit of Alpinia galanga

open access: yesMolecules, 2017
In our continuing study of biologically active natural products from the fruit of Alpinia galanga (Zingiberaceae), we newly isolated three new labdane-type diterpenes, termed galangalditerpenes A–C (1–3), along with four known sesquiterpenes (4–7) and ...
Yoshiaki Manse   +6 more
doaj   +1 more source

Protective Potentials of Natural Products Against Vascular Dementia: A Comprehensive Review of Experimental Studies

open access: yesPhytotherapy Research, EarlyView.
ABSTRACT Vascular dementia (VaD), accounting for up to 20% of dementia cases globally, is primarily driven by chronic cerebral hypoperfusion (CCH), which leads to progressive cognitive impairment. Despite the increasing prevalence of VaD, effective treatments remain limited.
Jung‐Hoon Kim, Yongtaek Oh, Suin Cho
wiley   +1 more source

An Overview of Biotransformation and Toxicity of Diterpenes

open access: yesMolecules, 2018
Diterpenes have been identified as active compounds in several medicinal plants showing remarkable biological activities, and some isolated diterpenes are produced at commercial scale to be used as medicines, food additives, in the synthesis of ...
Ingrid P. de Sousa   +2 more
doaj   +1 more source

Microbiota‐Mediated Sequential Gallery Colonization by Adults and Larvae of an Invasive Bark Beetle

open access: yesIntegrative Zoology, EarlyView.
Dispersing adult beetles harbor more pinitol‐degrading microbes to colonize novel host pines with high levels of pinitol stress. These microbes from the beetle's exoskeleton and gut will be transmitted into the gallery via adults’ feeding and frass, whose proliferation in the gallery contributes to the formation of a low‐pinitol microhabitat.
Wei Chen   +7 more
wiley   +1 more source

Recent Advances in Grayanane Diterpenes: Isolation, Structural Diversity, and Bioactivities from Ericaceae Family (2018–2024)

open access: yesMolecules
Diterpenes represent one of the most diverse and structurally complex families of natural products. Among the myriad of diterpenoids, grayanane diterpenes are particularly notable.
Sheng Liu   +3 more
doaj   +1 more source

Discovery of a Novel Diterpene in Brown Propolis from the State of Parana, Brazil

open access: yesNatural Product Communications, 2016
Propolis is a resinous substance collected by honeybees from certain plant sources. The components of propolis depend on the vegetation of the area in which apiculture is practiced.
Shigemi Tazawa   +5 more
doaj   +1 more source

-Clerodane Diterpenoids from Verbenaceae: Structural Elucidation and Biological Activity

open access: yesNatural Product Communications, 2008
This review focuses on the occurrence and structural elucidation of neo -clerodane type diterpenes from Verbenaceae (no matter if recently reclassified based on phylogenetic research) and the semisynthetic compounds of closely related structure obtained.
Amaya Castro, Josep Coll
doaj   +1 more source

Development of In Vitro and In Planta Strategies for Efficient Production of High‐Value Steviol Glycosides

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Steviol glycosides (SGs) are a group of sweet‐tasting diterpene glycosides found in Stevia rebaudiana. Production of high‐value SGs, Rebaudioside D (Reb D) and Reb M, is limited by inefficient conversion of Reb A to Reb D and stevioside to Reb E.
Sing Hui Leong   +3 more
wiley   +1 more source

Deciphering Role of Endophytes in Plant Defences and Biotic Stress Resilience Across Families

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Plant families generate distinct repertoires of specialised metabolites that govern their biotic interactions. Endophytes strengthen host plant defence mechanisms and tolerance to biotic challenges by upregulating metabolite biosynthesis, modifying precursor compounds into more potent forms, or by directly synthesising analogous defence ...
S. Aneeqa Noor   +4 more
wiley   +1 more source

Unravelling the Intraspecific Variation in Drought Responses in Seedlings of European Black Pine (Pinus Nigra J.F. Arnold)

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Understanding intraspecific variation in drought tolerance is essential for predicting the adaptive capacity of forest species under climate change. Yet, the molecular basis of this variation remains poorly understood in ecologically and economically important conifers.
Muhammad Ahmad   +21 more
wiley   +1 more source

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