一株单粒包埋类型的红缘灯蛾NPV

A STRAIN OF SINGLY EMBEDDEDNPV FROMAMSACTA LACTINEA

发现一株新的ＡＩＮＰＶ，与已报道的明显不同。其多角体呈三角形，直径１．０～１．２４μｍ，单粒包埋型，每多角体内含５２～７８个大小为２９８～３７５×４１～５６ｕｍ的病毒粒子。核衣壳大小为２８０～３５８×３６～４５ｕｍ。该病毒株具较强毒力，以２×１０６～２×１０７ＰＩＢ／ｍｌ的浓度感染３龄幼虫，６ｄ死亡率达８４．２～９２％，ＬＣ５０为１×１０４ＰＩＢ／ｍｌ，浓度与死亡率的回归方程为ｙ＝３．２８＋０．４３ｘ。

A new AINPV, which was obviously different from the AINPV had reported, wasdiscovered.The polyhedron was triangular in shape and 1.0￣1.24μm in diameter.52￣ 78 Vinous,298￣ 375 × 41 ￣ 56um in size, were singly embeded in one polyhedron.The nucleocapsid was 280￣ 358 ×36￣ 45um in measurement. Infecting third instar larva with the concentration of 2 × 106￣ 2 ×107PIB/ml for 6 days, we got a death rate of 84.2￣ 92%,LC5o of 1 × 104PIB / ml and the equal ofy = 3.28+.43x.