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Role of Cytokinins in alleviating the Copper toxicity in maize plant

. Naveed Ali, Muhammad Junaid Yousaf, Khan Niaz Khan, Ibad Ullah, Hamid Fida, Muhammad Mubeen, Dawood Safi, Ihtisham ul haq & Fawad Ali


Abstract

Plant growth hormones called cytokinins (CKs) also help plants recover from abiotic challenges such heavy metal stress. In this research, we aerially sprayed Zea mays seedlings with CuSO4 stress. When the seedlings' growth was assessed, it had improved. Root length, shoot length, fresh weight, and leaf area growth kinetics were noted. Surprisingly, CKs treatment boosted the seedlings' greater synthesis of secondary metabolites compared to CuSO4 treatment. Eventually, the seedlings relative water content was likewise high. Additionally, the seedlings treated with CKs and CuSO4 stress had increased levels of IAA, which combined with CKs to create enhanced enzyme activity, including catalase and oxidase. Individually stressed seedlings from CuSO4 treatments showed reduced IAA levels, which decreased the activity of the catalase and oxidase. So it was determined that the use of cytokinins reduced the effects of heavy metal stress by causing the creation of secondary metabolites.

Keywords: Cytokinins, Copper Sulphate, Secondary metabolites, Growth Kinetics, Enzymatic activity

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