A special Bacillus subtilis Z31 which is not apt to bear spore was isolated from Mt.Zheduo-a famous extremely high snow mountain near Kangding,Sichuan.

• 从四川康定附近著名的高海拔大雪山、生态环境极为特殊的折多山山顶分离到 2株性能各异的枯草芽孢杆菌 (Bacillussubtilis)Z2 1和Z31。