Carotenoids of the lily beetle (Lilioceris lilii) and of its food plant (Lilium hansonii)
1974; Elsevier BV; Volume: 20; Issue: 2 Linguagem: Inglês
10.1016/0022-1910(74)90073-0
ISSN1879-1611
AutoresRosemary S. Mummery, L.R.G. Valadon,
Tópico(s)Flowering Plant Growth and Cultivation
ResumoAbstract Six carotenoids were identified in the leaves of Lilium hansonii , and of these, only two, namely β-carotene and 5,6-monoepoxy-β-carotene were found in the lily beetle. Further, 4-OH, 4,4 1 -di-OH, and keto-carotenoids were found either in the larvae or in the adults of the beetle. As these were not found in its food plant, the insect must have been able to convert ingested carotenoids into these compounds. The presence of isozeaxanthin and absence of cantaxanthin in the larvae while both compounds were found in the adults suggest a precursor-product relationship. This is in agreement with possible pathways leading to the formation of keto-carotenoids.
Referência(s)