Study on the leaking of mineral elements from leaf of Eupatorium adenophorum treated by crude toxins of Lecanosticta acicola

Contents of 7 mineral elements in leaf of Eupatorium adenophorum treated by crude toxins of Lecanosticta acicola were measured by ICPOES. The results indicated that the contents of Ca and K decreased by 65.9% and 59.5% in leaf (in vitro) and 32.9% and 53.9% in plant (in vivo) respectively. Contents of Mg, P, Mn and Zn in the treated leaf increased significantly. Compared with the mineral elements in crude toxin solution, Ca, K and Fe increased and Mg, P, Mn and Zn decreased in leaking liquids of the leaf treated by crude toxins and the content of Ca in the leaking liquids was about 30 times more than control.