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KMID : 1024520040130060513
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Journal of the Environmental Sciences
2004 Volume.13 No. 6 p.513 ~ p.518
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The effect of Indole acetic acid on the accumulation of Cd[2+] and growth of Cd[2+] - treated Commelina communis L
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Lee Joon-Sang
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Abstract
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3-weeks old Commelina was transferred to and grown in Hoagland solution (Control, , + IAA, + IAA + 2 mM sucrose) for 3 weeks and then the effects of indole acetic acid (IAA) on the accumulation of and growth of -treated Commelina were investigated. In the treatment of , was uptaked to 1.74, and 51.36 frwt. at the first week, but for three weeks, 0.51 and 34,53 frwt, in leaf and stem respectively. When IAA was treated along with , was uptaked to 0.18 and 8.63 fiwt, at the first week, and for the incubation of 3 weeks, 0,51 and 45.0 fiwt. in leaf and stem. In case of +IAA+sucrose, was uptaked to 1.45 and 18.33 frwt. at the first week, but for 3 weeks, 0,51 and 25.45 fiwt. in leaf and stem. Likewise uptake, the growth was also affected by and IAA. During the incubation of 3 weeks, reduced the stem growth about 8% in all weeks, but the treatment of IAA recovered the inhibition of stem growth caused by to the degree of the control Therefore, it could be concluded that IAA altered the pattern of uptake and the growth which were supposed to change toxicity.
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KEYWORD
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Cadmium, Commelina communis, Indole acetic acid
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