Isolate MSE 1 4 could promote rice roots to grow, with an increase of root dry weight of 10.25%, whereas MSE 1 4 inhabited growth of rice shoots with a decrease of 6.85% in its dry weight.

• 其中，MSE1－4，MSE1－7对稻苗地上部生长有一定的抑制效应，干重分别比对照降低6.；85%25和1