Mode of Transmission of A New Microsporidian and Its Affect on Fecundity and Hatching in Silkmoth, Bombyx mori L.
2
조회
0
다운로드
0
인용
0
참고문헌
초록
Abstract
The mode of transmission, effect on fecundity, hatching and tissues specificity of a microsporidian (Lbms) recovered from Lamerin breed of the silkworm Bombyx mori L. was studied and compared with standard strain Nosema bombycis. Peroral inoculation of Lbms or N. bombycis to zeroday of 4th instar larvae of silkworm was the most suitable method for producing information on development of stage specific mortality,pupation and obtaining infected adults for transovarial transmission studies. It was observed that pupal mortality, the percentage of moths emerged and the percentage of moths infected were significantly high in N. bombycis infected batches as compared Lbms in all the three tested breeds of the silkworm. However no significant difference was observed in larval mortality.The fecundity and hatchability was not affected significantly in Lbms infected adults, however significant reduction in egg production, fecundity, hatchability and increased egg retention was observed in mother moths infected with N. bombycis. The Lbms is transmitted both horizontally and vertically at lower rate due to its low rate of proliferation. The transovarial transmission of Lbms to the F1 progeny generation through eggs averaged only 61.33 ± 5.10% whereas N. bombycis was transmitted at 100%. The Lbms had low oral infectivity and low transovarial transmission in silkworm B. mori.
참고문헌 (17)
- "First report on the isolation of three micvrosporidians Bombyx mori L. In India.Indian J. Seri. 33", (sema spp.), pp.146~148 (1994)
- "Diseases of Humans.Dynamics and Control. Oxford University Press" (1992)
- "A technique proposed forestimation of pebrine in grainages.", 37, pp.11~14 (1997)
- "Improvement of silkworm races", (sema spp.), pp.393 229~236
- "Transovarial transmissionof two microsoridia in the silkworm and diseaseoccurrence in the progeny population. J. Invertebr.Pathol. 51", pp.41~45 (1988)
- "Crossinfectivity microsporidians isolated from wild lepidopterousinsects to silkworm", pp.126~130 (1994)
- "Characteristicsof a new microsporidian S80 isolated from the silkworm Bombyx mori in Korea. Res. Proj. Rep. KoreanSericult. Assoco." (1982)
- "Phylogenetic relationships of three microsporidian isolates from silkworm, Bombyx mori", 3, pp.87~95 (2004)
- "A new microsporidian infecting Bombyx mori L", 37, pp.10~12 (1999)
- "Microsporidian spore isolated from Pieris sp", 38, pp.5~8 (1999)
- "Purification mature microsporodianspores by isodensity equilibrium centrifugation. J.Sericult. Sci. Jpn 49", pp.512~516 (1980)
- "Preliminary study on a microsporidian isolate occurring in the Lamerin breed of the silkworm Bombyx mori L.", 2, pp.265~267 (2004)
- "The cross infectivity between pathogens of silkworm, Bombyx mori L.", pp.203~209 (2003)
- "anew microsporidian pathogenic to the silkworm. Bombyxmori. J. Seric. Sci. Jpn 41", pp.89~95 (1972)
- "Mammalian microsporidiosis", pp.37 113~128 (2000)
- "Biological control of vectors field determination and handling of biofactors forcontrol of vectors", pp.189~ (1991), . John Wiley and Sons
- "The Microsporidia and microsporidiosis", pp.1~553 (1999), ASM