Results 41 to 50 of about 1,070 (170)

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

Nonconventional Techniques in Plant Alkaloid Extraction: A Decade of Progress (2014–2023)

open access: yesChemistry &Biodiversity, Volume 22, Issue 8, August 2025.
This figure seeks to represent the evolution of the different unconventional approaches that were adopted for the extraction of plant‐derived alkaloids during the decade from 2014 to 2023. ABSTRACT Plant metabolism encompasses primary and secondary pathways, with secondary metabolism yielding diverse natural products crucial for plant adaptation and ...
Victor Menezes Sipoloni   +5 more
wiley   +1 more source

The Enhancement of Catharanthine Content in Catharanthus roseus Callus Culture Treated with Naphtalene Acetic Acid

open access: yesHayati Journal of Biosciences, 2006
The research aim was to examine the enhancement of catharanthine content in Catharanthus roseus callus culture added with different concentration of Naphtalene Acetic Acid (NAA). NAA treatment produced callus that formed hairy roots. Fresh and dry weight
DINGSE PANDIANGAN, NELSON NAINGGOLAN
doaj  

Ethyl Methane Sulfonate and Sodium Azide-Mediated Chemical and X-ray-Mediated Physical Mutagenesis Positively Regulate Peroxidase 1 Gene Activity and Biosynthesis of Antineoplastic Vinblastine in Catharanthus roseus

open access: yesPlants, 2022
Catharanthus roseus synthesizes bioactive therapeutic metabolites, known as monoterpenoid indole alkaloids (MIAs), including antineoplastic vinblastine and vincristine, which have high global demand, and antihypertensive ajmalicine, a serpentine. However,
Vyoma Mistry   +5 more
doaj   +1 more source

Novel Biocatalysts from Specialized Metabolism

open access: yesAngewandte Chemie, Volume 136, Issue 4, January 22, 2024.
Enzymes are increasingly valuable as biocatalysts in synthetic chemistry. Many novel biocatalysts have emerged from the study of secondary metabolism, where rare and unusual reactions take place. In this review, we explore biocatalysts that address various synthetic challenges, including cyclization, C−H functionalization, and cross‐coupling, among ...
Hajo Kries   +2 more
wiley   +2 more sources

Negative-Pressure Cavitation Extraction of Four Main Vinca Alkaloids from <em>Catharanthus </em><em>r</em><em>oseus</em> Leaves

open access: yesMolecules, 2012
In the present study, an improved method termed negative-pressure cavitation extraction (NPCE) followed by reverse phase high-performance liquid chromatography (RP-HPLC) was developed for the extraction and quantification of vindoline (VDL ...
Yuangang Zu   +6 more
doaj   +1 more source

Acetylation‐Deacetylation‐Driven Natural Product Biosynthesis

open access: yesChemistryEurope, Volume 3, Issue 4, July 14, 2025.
This review summarizes the role of acetylation‐deacetylation in natural product biosynthesis, including acetylation followed by deacetylation after several biosynthetic steps, acetylation‐mediated rearrangement, acetylation‐triggered elimination, and the acetylation cycle as a regulatory mechanism. These processes are vital for the formation of complex
Huibin Wang, Ikuro Abe
wiley   +1 more source

Do Fungicides Affect Alkaloid Production in Catharanthus roseus (L.) G. Don. Seedlings?

open access: yesMolecules, 2023
The presence of endophytes in plants is undeniable, but how significant their involvement is in the host plant biosynthetic pathways is still unclear. The results reported from fungicide treatments in plants varied. Fungicide treatment in Taxus was found
Purin Candra Purnama   +2 more
doaj   +1 more source

Co-Overexpression of Geissoschizine Synthase and Catharanthine Synthase Increases Catharanthine Biosynthesis in Catharanthus roseus Hairy Roots

open access: yesPlants
Plant-based platforms remain vital for producing anticancer vinca alkaloids. However, one major challenge in plant-based metabolic engineering is that target metabolite yields are often hindered by the presence of multiple competing pathway branches that
Xiaohua Li   +8 more
doaj   +1 more source

Binary Stress Induces an Increase in Indole Alkaloid Biosynthesis in Catharanthus roseus

open access: yesFrontiers in Plant Science, 2015
Catharanthus roseus is an important medicinal plant, which produces a variety of indole alkaloids of significant pharmaceutical relevance. In the present study, we aimed to investigate the potential stress-induced increase of indole alkaloid biosynthesis
Wei eZhu   +5 more
doaj   +1 more source

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