METABOLIC CHANGES IN DISEASED INSECTS .I. AUTORADIOGRAPHIC STUDIES IN DNA SYNTHESIS ON NORMAL AND IN POLYHEDROSIS-VIRUS-INFECTED LEPIDOPTERA

被引:9
作者
MORRIS, ON
机构
[1] Department of Forestry and Rural Development, Forest Research Laboratory, Victoria, BC
关键词
D O I
10.1016/0022-2011(68)90260-7
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
DNA synthesis was studied autoradiographically in larval tissues of normal Erannis vancouverensis, and in normal nuclear polyhedrosis-virus-infected tissues of Lambdina fiscellaria lugubrosa and L. f. somniaria. The results confirm previous histochemical indications that DNA synthesis increases up to a point just prior to polyhedron formation and then decreases. The synthesis of DNA ceases in nuclei containing mature polyhedra. DNA synthesis was higher in normal fourth-instar L. f. lugubrosa and L. f. somniaria than in normal fifth-instar E. vancouverensis. DNA synthesis ceased in prepupal midgut but was resumed in the pupal midgut. Cells which are prime targets of polyhedrosis-virus infection actively synthesized DNA during the prepupal and pupal stages of E. vancouverensis. © 1968.
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页码:28 / &
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