Plant Diversity ›› 2000, Vol. 22 ›› Issue (04): 1-3.

• Articles •    

Study on the Relationships between Vesicular Arbuscular Mycorrhiza and the Systematic Evolution of Pteridophyte

ZHAO Zhi - Wei             

  1. Biology Department of Yunnan University, Kunming 650091, China
  • Online:2000-08-25 Published:2000-08-25

Abstract: The mycorrhizal states of 256 species of pteridophytes which are naturally distributed in the tropi-cal and subtropical areas of Yunnan (Southwest China) were surveyed . It was found that the percentage of vesicular arbuscular mycotrophic associated with pteridophytes are lower than the angiospenns. The evolu-tionary trend offilicineae may be from rnvcotrophism to facultative mycotrophism, and at last to autotrophism.

Key words: Pteridophyte