Vitamins for enhancing plant resistance

Abstract

This paper provides an overview on vitamins with inducing activities in plants, the molecular and cellular mechanisms implicated, and the hormonal signalling-network regulating this process. Moreover, it reports how vitamins might be part of the molecular events linked to induced resistance by the conventional elicitors. Induced resistance (IR), exploiting the plant innate-defense system is a sustainable strategy for plant disease control. In the last decade, vitamins have been proven to act as inducers of disease resistance, and these findings have received an important attention owing to their safety and cost effectiveness. Vitamins, including thiamine (TH, vitamin B1), riboflavin (RF, vitamin B2), menadione sodium bisulfite (MSB, vitamin K3), Para-aminobenzoic acid (PABA, vitamin Bx), and folic acid (FA, vitamin B9) provided an efficient protection against a wide range of pathogens through the modulation of specific host-defense facets. However, other vitamins, such as ascorbic acid (AA, vitamin C) and tocopherols (vitamin E), have been shown to be a part of the molecular mechanisms associated to IR. The present review is the first to summarize what vitamins are acting as inducers of disease resistance in plants and how could they be modulated by the conventional elicitors. Thus, this report provides an overview on the protective abilities of vitamins and the molecular and cellular mechanisms underlying their activities. Moreover, it describes the hormonal-signalling network regulating vitamin-signal transduction during IR. Finally, a biochemical model describing how vitamins are involved in the establishment of IR process is discussed.

Application of Foliar Synthetic Elicitors for the Management of Diaphorina citri (Hemiptera: Liviidae) Populations in Tahiti Lime (Citrus latifolia Tanaka)

“…Vitamins have been reported as resistance inducers under conditions of biotic stress (Boubakri et al, 2016). In this context, studies on the use of vitamins such as thiamine have mainly focused on the management of pathogens (Boubakri et al, 2012(Boubakri et al, , 2016.…”

“…Vitamins have been reported as resistance inducers under conditions of biotic stress (Boubakri et al, 2016). In this context, studies on the use of vitamins such as thiamine have mainly focused on the management of pathogens (Boubakri et al, 2012(Boubakri et al, , 2016. However, recent research has shown that thiamine treatments in barley crops reduce aphid population by 60% compared with untreated plants (Hamada and Jonsson, 2013).…”

“…The treatments were as follows: 1) untreated trees (control), 2) trees treated with foliar thiamine applications at 100 ppm, 3) trees treated with foliar SA sprays at 100 ppm 4) trees treated with foliar applications of chitosan at 100 ppm, and 5) trees treated with foliar Br applications at 1 ppm of the active ingredient. The concentrations used were chosen based on literature about the effects of these products on the activation of defense mechanisms of the plant (Boubakri et al, 2016;Erb et al, 2012;Pichyangkura and Chadchawan, 2015;Smith et al, 2009). Finally, Table 1 summarizes the characteristics and biological activity of the activators used in this study.…”

“…Elicitors are compounds that stimulate any type of defense in the plant and favor the synthesis of secondary metabolites under conditions of both abiotic and biotic stress and can be applied through foliar sprays. Within these compounds, carbohydrates, lipids, (glyco)peptides, (glyco)proteins, vitamins, and phytohormones can be found (Angelova et al, 2006;Boubakri et al, 2016;Smith et al, 2009;Thakur and Sohal, 2013;Tsagkarakis et al, 2012). Among the compounds studied to activate defense mechanisms in plants against the attack of biotic agents (macro-and microorganisms) are SA, phytohormones, chitosan, and thiamine (vitamin B1) (Ahn et al, 2005;El Hadrami et al, 2010;Thakur and Sohal, 2013).…”

Keefektifan beberapa senyawa kimia sebagai agen penginduksi resistensi tanaman sawi terhadap penyakit bercak daun Curvularia

“…Konsentrasi yang digunakan, untuk vitamin B ialah : a. 30 mM (Boubakri et al, 2016), b. koloidal kitin 1 g l -1 (Suganda, 2001), c. asam salisilat 5% (Sarwar et al, 2011), d. K2HPO4 13,6 g l -1 (Sarwar et al, 2011), dan e. Bion M 1/48 1,5 g l -1 (Sarwar et al, 2011).…”