Results 61 to 70 of about 8,071 (223)

A chromosome-level Camptotheca acuminata genome assembly provides insights into the evolutionary origin of camptothecin biosynthesis

open access: yesNature Communications, 2021
Camptothecin is a monoterpene indole alkaloid with anti-tumor activity. Here, the authors assemble the genome of the camptothecin producing plant Camptotheca acuminata and provide insights into the evolutionary origin of camptothecin biosynthesis by ...
Minghui Kang   +9 more
doaj   +1 more source

Exploring Floristic Diversity and Medicinal Plant Uses in Venda, Limpopo, South Africa

open access: yesFeddes Repertorium, Volume 137, Issue 2, June 2026.
ABSTRACT Plants have been an important source of medicine for thousands of years. To better understand the current diversity and usage of medicinal plants, floristic studies are essential. This report documents an expedition conducted in the Venda region of Limpopo, South Africa. The study was carried out in Shanzha and surrounding villages, as well as
Gurusamy Manikandan   +2 more
wiley   +1 more source

Monoterpenoid Indole Alkaloids from Cultivated in Yunnan

open access: yesNatural Product Communications, 2015
A new monoterpenoid indole alkaloid, 15,20-dehydro-3α-(2-oxopropyl) coronaridine (1) , along with sixteen analogues (2–17) were isolated from the leaves of Catharanthus roseus cultivated in Yunnan.
Bei Wang   +6 more
doaj   +1 more source

Effect of Catharanthus roseus (L.) (Apocyneaceae) extract on developmental stages of Erias favia stall

open access: yesEnvironment Conservation Journal, 2003
Developmental defect in Erias favia was investigated due to aqueous extract of Catharanthus roseus. The extract caused significant reduction in adult emergence as well as in percentage of egg hatch in Erias favia.
Sunil Kumar Dubey   +4 more
doaj   +1 more source

A Malectin‐Like Receptor Kinase and Bacterial Motility Shape Tissue‐Specific Maize–Xanthomonas vasicola Interactions

open access: yesMolecular Plant Pathology, Volume 27, Issue 6, June 2026.
Dual RNA‐seq reveals that ZmCrRLK1L19 and bacterial motility drive tissue‐specific maize–Xanthomonas interactions, distinguishing mesophyll from vascular colonization strategies. ABSTRACT Understanding how pathogens infect different tissue types and how plants mount tissue‐specific defences against bacterial pathogens is critical for improving disease ...
Alexander Mullens   +2 more
wiley   +1 more source

Phytochemistry, cytotoxicity and antiviral activity of Catharanthus roseus

open access: yesIranian Journal of Microbiology, 2020
Background and Objectives: Catharanthus roseus is generally used to treat many diseases in folklore remedies. The present study is aimed at determining phytochemical constituents, cytotoxicity and antiviral activities for crude extract of the plant. Materials and Methods: The whole plant of C.
Noor Zarina Abd Wahab   +2 more
openaire   +4 more sources

N-deformyl vincristine : a bisalkaloid from Catharanthus roseus

open access: yes, 1984
A bisalkaloid from Catharanthus roseus is N-deformyl vincristine (NDF).
De Bruyn, André   +4 more
core   +1 more source

The Structure of Carboxyl Methyltransferase Provides Insights Into the Substrate Specificity and Divergent Evolution of Iridoid

open access: yesPlant Biotechnology Journal, Volume 24, Issue 6, Page 3708-3722, June 2026.
ABSTRACT Iridoids constitute a prominent class of plant‐specialised metabolites, with carbocyclic iridoids (e.g., geniposide) and secoiridoids (e.g., loganin) diverging early in their biosynthetic pathways. This divergence is marked by substrate‐specific carboxyl methyltransferases—GjGAMT and CrLAMT—that catalyse the decisive methylation step in ...
Li Li   +7 more
wiley   +1 more source

Characterization of bacterial endophytes from Myanmar medicinal plants for antimicrobial activity against human and plant pathogens

open access: yesBrazilian Journal of Pharmaceutical Sciences, 2020
This research aimed to investigate the antagonistic activity of the bacterial endophytes from Myanmar medicinal plants. Thirty-one bacterial isolates were isolated from Myanmar medicinal plants: Tinospora cordifolia (Wild.) Miers., Catharanthus roseus G.
Ei Mon Myo   +3 more
doaj   +1 more source

OsRALF26 Serves as an Endogenous Signal Recognised by XA21 to Promote Robust and Distal Resistance in Rice

open access: yesPlant Biotechnology Journal, Volume 24, Issue 6, Page 4159-4173, June 2026.
ABSTRACT Plant immune receptors detect both microbe‐derived and endogenous signals to activate defences. XA21, a rice immune receptor, confers strong race‐specific resistance to a subset of Xanthomonas oryzae pv. oryzae (Xoo) strains by recognising the microbial sulphated peptide RaxX.
Oh‐Kyu Kwon   +2 more
wiley   +1 more source

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