Importance of Nickel in Plant Nitrogen Metabolism
Abhik Patra*
Krishi Vigyan Kendra, Narkatiyaganj, West Champaran, Bihar (845 455), India
R.P. Singh
Krishi Vigyan Kendra, Narkatiyaganj, West Champaran, Bihar (845 455), India
B.K. Singh
Krishi Vigyan Kendra, Narkatiyaganj, West Champaran, Bihar (845 455), India
Ratul Moni Ram
Krishi Vigyan Kendra, Narkatiyaganj, West Champaran, Bihar (845 455), India
Ashutosh Kumar
Krishi Vigyan Kendra, Narkatiyaganj, West Champaran, Bihar (845 455), India
DOI: NIL
Keywords: Nickel, Nitrogen, Urea, Ureide
Abstract
Nickel (Ni) is a very critical micronutrient for plants and more importantly linked with nitrogen (N) metabolism, involved indirectly as a trace element. An essential and direct function of Ni is as a co-factor for enzymes; such as, urease, which facilitates the conversion of urea into usable forms of nitrogen helping assimilation and recycling of N within the plant. It has been associated with some other enzymatic activities that are necessary for amino acid synthesis, protein metabolism and secondary metabolite production. Besides, Ni also involves abiotic stress tolerance due to enhanced catalysis of antioxidant enzymes against oxidative stress to maintain stability in the metabolism under stressed conditions. More recently found is the role of Ni in increasing N use efficiency which has made it significant in sustainable agriculture aimed at reducing dependence on fertilizers.
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