Histopathology and effect on development of the PhopGV on larvae of the potato tubermoth, Phthorimaea operculella (Lepidoptera: Gelechiidae)

作者：Lacey Lawrence A^*; Hoffmann Darlene F; Federici Brian A

来源：Journal of Invertebrate Pathology, 2011, 108(1): 52-55.

DOI：10.1016/j.jip.2011.06.003

• Granulovirus
• Histopathology
• Developmental effects
• Potato tubermoth
• Phthorimaea operculella

Larvae of the potato tubermoth (PTM), Phthorimaea operculella, feed on potato plants and tubers and are a major pest in the tropics and subtropics worldwide, causing up to 100% damage. The PTM granulovirus (PhopGV) provides significant potato protection, but little is known about its effect on larval development or its histopathology. Here we show that only 10% of larvae exited from PhopGV-treated tubers (1.4 x 10(8) granule/ml), lagging significantly behind controls, and most of these died by 72 h after emergence. Histopathology studies showed the fat body and epidermis were the principal tissues infected. PhopGV morphogenesis was similar to other GVs, the exception being small vesicles between mature granules.

• 出版日期2011-9