endospore
n. 孢子内壁;[植] 内生孢子;内芽孢
例句
The longitudinal slit probably has the function of releasing endospore. From the complicated structure, it can be inferred that these organisms might be of eukaryote.
另据标本所显示的规则的开口结构,推测其可能具有释放内生孢子的功能,因此视其为可能的真核生物。