About 1000 symptomless peanut plants were collected for the analysis of peanut endophytes from the fields located in different main cultivation regions of peanut in Shandong Province from 1994-1997.

• 1997年，先后从山东省主要花生产区临沂、烟台等地采集约1000株不同类型的花生无病株，进行了植株内主要微生物类群分析。