酸化土壤中铝及其植物毒性

Aluminum in Acidic Soils and Its Phytotoxicity.

本文综述了(1)影响土壤酸化的因素和铝的活化过程;(2)铝对植物的毒害症状,植物对铝的相对抗性以及铝的形态与植物毒性的关系;(3)影响铝毒性的外界因素如磷、钙和有机质;(4)铝的毒性机理,铝可能作用于生物膜、钙调素、DNA和ATP。最后提出了一些铝质土壤的改良措施。

Made in this paper is a general review on following topics: (1) factors of soil acidification and process of aluminum activation; (2) the symptoms of Al-injured plants, the resistance of paints to aluminum and the relationship between aluminum speciation and phytotoxicity; (3) the external factors affecting aluminum toxicity expression, such as P, Ca and organic matter; and (4) some mechanism of Al phytotoxicity relating to biomembrane, Calmodulin DNA and ATP. Finally, some ameliorative measurements of Al-toxic soils have also been discussed.