多酚氧化酶水平不同的马铃薯基因型上的马铃薯甲虫幼虫的生物学性能。
Biological performance of Colorado potato beetle larvae on potato genotypes with differing levels of polyphenol oxidase.
机构信息
Department of Entomology, Cornell University, Tower Rd. Insectary, 14853-2604, Ithaca, New York.
出版信息
J Chem Ecol. 1996 Jan;22(1):91-101. doi: 10.1007/BF02040202.
Two potato genotypes resistant to the Colorado potato beetle (CPB) and three susceptible genotypes were used to investigate the role of total foliar polyphenol oxidase (PPO) on the performance of CPB larvae in long-term feeding assays. A significant positive correlation was found between larval mortality and PPO content in potato foliage. Moreover, a significant negative correlation was also observed between PPO content and larval weight, fecundity, and relative larval growth rate. These results suggest a significant role of PPO in conferring potato resistance to the Colorado potato beetle at least in those clones where the PPO levels were above a certain threshold.
两种对科罗拉多马铃薯甲虫（CPB）具有抗性的马铃薯基因型和三种易感基因型被用于研究总叶多酚氧化酶（PPO）在 CPB 幼虫长期取食试验中的作用。在马铃薯叶片中，发现幼虫死亡率与 PPO 含量之间存在显著正相关。此外，还观察到 PPO 含量与幼虫体重、产卵量和相对幼虫生长率之间存在显著负相关。这些结果表明，PPO 在赋予马铃薯对科罗拉多马铃薯甲虫的抗性方面起着重要作用，至少在 PPO 水平高于一定阈值的那些克隆中是如此。
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