Effect of As Element on Growth of Alternanthera philoxeroides (Mart.) Griseb

Six different arsenic concentrations of nutrient liquid were used to cultivate Alternanthera philoxeroides.The research results indicated that low concentration(50μmol/L) of arsenic could promote the growth of Alternanthera philoxeroides,however,high concentration(100μmol/L) of As inhibited the growth.In addition,Alternanthera philoxeroides could effectively absorb As element within concentration range of 25~400 μmol/L and the absorption amount increased along with the increase of As concentration.The stem of Alternanthera philoxeroides was the main absorption part.