Volume 5, Number 17 (Vol. 5, No. 17, year 2016 2016)                   jppf 2016, 5(17): 29-39 | Back to browse issues page

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Ghasemi R, Naseri P, Noroozi H. Study of the superoxide dismutase isozymes activities in different iron nutrition conditions in Aloe vera. jppf. 2016; 5 (17) :29-39
URL: http://jispp.iut.ac.ir/article-1-286-en.html

Assistant professor University of Payame Noor , rsl_ghsm@yahoo.com
Abstract:   (510 Views)

Since Aloe vera has special adaptations to the environmental conditions of Iran, it has industrially utilized. The more studying physiological and biochemical properties of usable tissues improves its utilizing. In this study the effects of iron nutrition on the iron concentrations in different leaf tissues and the activity of superoxide dismutase were investigated. Propagated plants from a maternal scion were treated by different concentrations of iron (0, 5, 10 and 20 µM) in two chelate forms, FeEDTA and FeEDDHA in a fully factorial complete design. The results showed no difference between the two iron chelate forms in iron concentrations in tissues. The most increasing in iron concentration was observed in leaf surface tissues by using higher concentrations of iron in medium. Total superoxide dismutase activity in different tissues was not influenced by iron concentration in medium. Study of different SOD isozymes showed a constitutive activity of MnSOD in all of tissues. The activity of FeSOD was more apparent in surface tissues but it was induced in pulp in higher concentrations of iron. In all of the used iron concentrations, the activity of Cu/ZnSOD observed in surface tissues but it was never observed in pulp. It could be suggested that pulp as the most important industrial usable tissue is not a source for accumulation of iron. The activity of SOD could be induced in pulp by increasing in iron concentration. Indeed an induction in the activity of Cu/ZnSOD in pulp could be investigated by increasing in Cu and/or Zn concentrations.

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Type of Study: Research | Subject: others
Received: 2014/06/20 | Accepted: 2015/09/14 | Published: 2016/09/3

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