Results 41 to 50 of about 1,017 (177)

Opium poppy and Madagascar periwinkle: model non‐model systems to investigate alkaloid biosynthesis in plants [PDF]

open access: yesThe Plant Journal, 2008
SummaryAlkaloids represent a large and diverse group of compounds that are related by the occurrence of a nitrogen atom within a heterocyclic backbone. Unlike other types of secondary metabolites, the various structural categories of alkaloids are unrelated in terms of biosynthesis and evolution.
Peter J, Facchini, Vincenzo, De Luca
openaire   +2 more sources

Subfunctionalization of Paralog Transcription Factors Contributes to Regulation of Alkaloid Pathway Branch Choice in Catharanthus roseus

open access: yesFrontiers in Plant Science, 2021
Catharanthus roseus produces a diverse range of specialized metabolites of the monoterpenoid indole alkaloid (MIA) class in a heavily branched pathway. Recent great progress in identification of MIA biosynthesis genes revealed that the different pathway ...
Maite Colinas   +25 more
doaj   +1 more source

White Madagascar Periwinkle Flower

open access: yes, 2021
A Close up of a White Madagascar Periwinkle ...

core  

Angled View of Pink Madagascar Periwinkle

open access: yes, 2021
Angled View of Pink Madagascar Periwinkle ...

core  

Anti‐Inflammatory Potential of Key Phytochemicals From Humboldtia sanjappae: In Vivo Studies and Molecular Docking With MM‐GBSA Analysis

open access: yesChemistry &Biodiversity, Volume 23, Issue 6, June 2026.
Humboldtia sanjappae bark extract evaluated for its anti‐inflammatory potential using in vivo paw edema models and in silico molecular docking. Bioactive flavonoids, particularly neoeriocitrin, showed strong interactions with TNF‐α, COX‐2, IL‐6, and IL‐1β, highlighting the extract's multi‐target anti‐inflammatory activity and therapeutic promise ...
Jameema Sidhic   +10 more
wiley   +1 more source

A Single Pink Madagascar Periwinkle Flower

open access: yes, 2021
Close up of a Pink Madagascar Periwinkle ...

core  

Virus‐Induced Gene Silencing in Calendula officinalis (Pot Marigold)

open access: yesPlant Direct, Volume 10, Issue 5, May 2026.
ABSTRACT Virus‐induced gene silencing (VIGS) is a method that exploits plant antiviral defense mechanisms to downregulate endogenous genes. The technique is versatile, rapid, and widely used for functional genomics studies. Here, we report a method for VIGS in the medicinal plant, Calendula officinalis (pot marigold).
Daria Cuthbert   +3 more
wiley   +1 more source

Modulatory Effects of Cirsimarin on Lung Cancer A549 Cells Migration in 2D and 3D Cultures Involves Transcriptional Regulation of Metalloproteinases

open access: yesJournal of Biochemical and Molecular Toxicology, Volume 40, Issue 3, March 2026.
In 2D culture, the cirsimarin (i) decreased cell viability in both assays, (ii) induced apoptosis, (iii) reduced clonogenicity, (iv) prevented cell migration, (v) induced DNA damage, and (vi) negatively modulated gene expression. In the 3D model, reductions in spheroid viability, area, and cell migration were also observed.
Anna Gabriele Prado dos Santos   +10 more
wiley   +1 more source

A cell‐type‐specific regulon controlling monoterpene indole alkaloid biosynthesis with feedback and feedforward activation loops

open access: yesNew Phytologist, Volume 249, Issue 2, Page 945-960, January 2026.
Summary Monoterpene indole alkaloids (MIA) are a diverse class of plant natural products produced by a subset of lineages within the Asterid clade of eudicots. The diversity of MIAs provides a unique opportunity to study not only the evolution of biosynthetic genes but also their regulation.
Chenxin Li   +7 more
wiley   +1 more source

Response of Common Garden Annuals to Sublethal Rates of 2,4-D and Dicamba with or without Glyphosate

open access: yesHortTechnology, 2020
An experiment was conducted in 2017 and 2018 to determine the sensitivity of common garden annuals to sublethal rates of 2,4-dichlorophenoxyacetic acid (2,4-D) and dicamba with or without glyphosate.
Brian Dintelmann   +2 more
doaj   +1 more source

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