Canadian Forest Service Publications

Influence de l'infection virale (polyédrie nucléaire) sur la formation d'acide urique chez la larve de Neodiprion swainei (Hymenoptera : Tenthredinidae) 1969. Smirnoff, W.A.; Valéro, J.R. The Canadian Entomologist 101(7) : 763-766.

Year: 1969

Issued by: Laurentian Forestry Centre

Catalog ID: 16035

Language: French

Availability: PDF (request by e-mail)

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Abstract

The uric acid content of the fats and the whole organism was determined by the Technicon spectrocolorimeter method for all instars of healthy and nuclear-polyhedrosis-infected larvae of Neodiprion swainei Midd. The results obtained revealed that (a) in healthy larvae the uric acid content gradually increased from 20 to 470 p.p.m. from the first to the fifth instar inclusively and (b) in virus-infected larvae the uric acid content was always greater than in healthy larvae. It increased from 21 to 493 p.p.m. from the first to the beginning of the fourth instar, reached a maximum of 830 p.p.m. at the end of the fourth instar, and decreased to 680 p.p.m. at the fifth instar.