The spore is a dehydrated, multishelled structure that is highly resistant to environment factors, such as desiccation, heat, radiation and chemical agents. They can exist for many years as viable spores.

• 芽胞脱水和多层壳结构使其对外界因素,如干燥,热,辐射和化学物质具有高度抵抗力。它们可在外界存活很多年。