Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Danielone, a phytoalexin from papaya fruit

F Echeverri1, F Torres, W Quiñones

  • 1Universidad de Antioquia, Departamento de Química, Medellin, Colombia.

Phytochemistry
|January 1, 1997
PubMed
Summary

Researchers discovered a new phytoalexin in papaya fruit, identified as 3',5'-dimethoxy-4'-hydroxy-(2-hydroxy)acetophenone. This compound effectively combats Colletotrichum gloesporioides, a significant papaya pathogen.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Effects of intranasal oxytocin on fear, pain and aversive memory.

Neuropeptides·2026
Same author

Engineering SIRPα conformational plasticity to reveal a cryptic pocket suitable for structure-based drug design.

bioRxiv : the preprint server for biology·2026
Same author

The association between neighborhood context, allostatic load, and metabolic dysfunction-associated steatosis liver disease in Mexican-origin farmworkers along the Southern Arizona US/Mexico border.

SSM - population health·2025
Same author

Transarterial chemoembolization with doxorubicin-loaded radiopaque beads for hepatocellular carcinoma: Safety, efficacy, and distribution.

Radiologia·2025
Same author

Presumptive Lyme disease-associated eosinophilic synovitis in a horse.

Journal of equine veterinary science·2025
Same author

The Silent Threat-Alkali Foot Burn: A Case Report.

Annals of burns and fire disasters·2024

Area of Science:

  • Phytochemistry
  • Plant Pathology
  • Mycology

Background:

  • Papaya (Carica papaya) is susceptible to fungal diseases.
  • Phytoalexins are plant-produced compounds with antimicrobial properties.
  • Copper salts can induce defense responses in plants.

Purpose of the Study:

  • To identify and characterize novel phytoalexins in papaya.
  • To evaluate the antifungal activity of induced phytoalexins against papaya pathogens.

Main Methods:

  • Papaya fruit slices were treated with copper salts to induce phytoalexin production.
  • The induced phytoalexin was isolated and its chemical structure elucidated.
  • Antifungal activity was tested against Colletotrichum gloesporioides.

Related Experiment Videos

Main Results:

  • A new phytoalexin, 3",5"-dimethoxy-4"-hydroxy-(2-hydroxy)acetophenone, was successfully isolated.
  • The compound demonstrated significant antifungal activity against Colletotrichum gloesporioides.
  • Copper salt treatment effectively induced the production of this protective compound.

Conclusions:

  • 3",5"-dimethoxy-4"-hydroxy-(2-hydroxy)acetophenone is a potent phytoalexin in papaya.
  • This discovery offers potential for developing new strategies against papaya fungal diseases.
  • Induction of phytoalexins presents a promising avenue for crop protection.