以上这些原因还不算真正的奇怪。除了人类之外，弓形虫还有两种典型的寄主：啮齿动物和猫科动物。那些感染弓形虫的啮齿动物才真叫古怪。
Nor is any of this truly surprising. For, besides humans, Toxoplasma has two normal hosts: rodents and cats. And what it does to rodents is very odd indeed.
因为除人类以外，弓形虫还有两个常规寄主：啮齿目动物与猫科动物。
For, besides humans, Toxoplasma has two normal hosts: rodents and cats.
植物防卫信号的产生类似于动物免疫系统因子的介导，并可由非寄主病原菌或诱导子诱发。
Plant defense signal uses the similar mechanism in the animal immunity system, and it can be initiated by non-parasitic pathogen and mediator.
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