1I Wang W X,Vinocur B, Altman A. Plant responses to drought, salinity and extreme temperatures:towards genetic engineering for stress toler- ance[ J]. Planta,2003,218 ( 1 ) : 1 - 14.
10Bethlenfalvay G J, Linderman R G. Mycorrhizae and crop productivi- ty : mycorrhizae in sustainable agriculture [ M ]. Madison : ASA Spe- cial Publication, 1992.