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Phytochemistry. 2007 Jul;68(14):1904-21. Epub 2007 May 21.

Vitamin B biosynthesis in plants.

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  • 1Institute of Biological Chemistry, Washington State University, 299 Clark Hall, Pullman, WA 99164, United States.


The vitamin B complex comprises water-soluble enzyme cofactors and their derivatives that are essential contributors to diverse metabolic processes in plants as well as in animals and microorganisms. Seven vitamins form this complex: B1 (thiamin (1)), B2 (riboflavin (2)), B3 (niacin (3)), B5 (pantothenic acid (4)), B6 (pyridoxine, pyridoxal (5), and pyridoxamine), B8 (biotin (6)), and B9 (folate (7)). All seven B vitamins are required in the human diet for proper nutrition because humans lack enzymes to synthesize these compounds de novo. This review aims to summarize the present knowledge of vitamin B biosynthesis in plants.

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