Thiamine and Its Role in Protection Against Stress in Plants (Enhancement in Thiamine Content for Nutritional Quality Improvement)
Thiamine or vitamin B1 plays an indispensable role in many metabolic reactions. The active form, thiamine pyrophosphate (TPP), functions as a cofactor in various crucial metabolic reactions including glycolysis, pentose phosphate pathway, and the tricarboxylic acid cycle in all living organisms. Recently, thiamine is also associated with the induction of systemic acquired resistance (SAR) in the plant. It has also been shown that thiamine has a role in boosting plants’ immunity and defence system. Many plants have been investigated and indeed thiamine may be one of the key molecules involved in plant protection against stress. Numerous studies have shown that the expression of thiamine biosynthesis genes was upregulated upon both biotic and abiotic stress induction in various plants. Various analyses including looking at the expression of thiamine biosynthesis genes, the accumulation of thiamine and its intermediates and also on enzyme function complementation studies have supported the role that thiamine may play in plant protection. In this chapter, the role of thiamine as a stress-responsive signalling molecule, its biosynthesis pathway and how it is being regulated will be discussed. The application that entails the understanding of this role will be briefly described and hence provide the support for the suggestion of its role in protection against stress in plants.
KeywordsThiamine Vitamin B1 Stress Plant protection
- Balia Yusof ZN, Borhan FP, Mohamad FA, Rusli MH (2015) The effect of Ganoderma boninense infection on the expressions of thiamine (Vitamin B1) biosynthesis genes in oil palm. J Oil Palm Res 27(1):12–18Google Scholar
- Dong W, Thomas N, Ronald PC, Goyer A (2016) Overexpression of thiamin biosynthesis genes in rice increases leaf and unpolished grain thiamin content but not resistance to Xanthomonas oryzae pv. oryzae. Front Plant Sci 7:616Google Scholar
- Kamarudin AN, Lai SK, Lamasudin DU, Idris AS, Yusof B, Zetty N (2017a) Enhancement of thiamine biosynthesis in oil palm seedlings by colonization of endophytic fungus Hendersonia toruloidea. Front Plant Sci 8:1799Google Scholar
- Kamarudin AN, Idris AS, Balia Yusof ZN (2017b) Thiamine biosynthesis gene expression analysis in Elaeis guineensis during interactions with Hendersonia toruloidea. J Oil Palm Res 29:218–226Google Scholar