Environmental & Analytical Toxicology

Francis Ayuka

Publications

• Research Article
  Exploring Wild Tomato Leaf Extracts in Pesticide Formulations
  Author(s): Francis Ayuka and Ross BarnettFrancis Ayuka and Ross Barnett
  
  Crude extracts from the leaves of the wild tomato, Lycopersicon hirsutum f. glabratum accession PI 134417 possess a pestresistance mechanism in their glandular trichomes (plant hairs) and the exudates they produce due to the presence of a mixture of methyl ketones (MKs) that has insecticidal and acaricidal properties. Type IV and VI glandular trichomes on the leaves of PI 134417 grown under greenhouse conditions were counted. Major volatile oils from glandular leaf trichomes were extracted, purified, and quantified using gas chromatography (GC) and mass spectrometry (GC/MS). The main objectives of this investigation were to: 1) monitor seasonal glandular trichomes density on PI 134417 for mass production of MKs and 2) prepare a simplified formulation of MKs for potential use of PI 134417 leaf extracts, which could become a valuable source of natural produc.. Read More»
  DOI: 10.4172/2161-0525.1000347

  Abstract PDF