Menadione sodium bisulphite: A promising plant growth regulator

Rao, A. V. Rama; Ravichandran, K.; David, S. B.; Ranade, Sujata

doi:10.1007/bf01806050

Cited by 16 publications

(8 citation statements)

References 19 publications

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“…Menadione sodium bisulfite (MSB) is a vitamin K3 derivative known to be a growth regulator ( Rama Rao et al, 1985 ). Borges et al (2003a) found that MSB protects rape plants ( Brassica napus ) from the fungus Leptosphaeria maculans by stimulating ROS production, but without inducing PR1 .…”

Section: Priming By Natural Compoundsmentioning

confidence: 99%

Priming of plant resistance by natural compounds. Hexanoic acid as a model

Aranega-Bou¹,

Leyva²,

Finiti³

et al. 2014

Front. Plant Sci.

200

171

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Some alternative control strategies of currently emerging plant diseases are based on the use of resistance inducers. This review highlights the recent advances made in the characterization of natural compounds that induce resistance by a priming mechanism. These include vitamins, chitosans, oligogalacturonides, volatile organic compounds, azelaic and pipecolic acid, among others. Overall, other than providing novel disease control strategies that meet environmental regulations, natural priming agents are valuable tools to help unravel the complex mechanisms underlying the induced resistance (IR) phenomenon. The data presented in this review reflect the novel contributions made from studying these natural plant inducers, with special emphasis placed on hexanoic acid (Hx), proposed herein as a model tool for this research field. Hx is a potent natural priming agent of proven efficiency in a wide range of host plants and pathogens. It can early activate broad-spectrum defenses by inducing callose deposition and the salicylic acid (SA) and jasmonic acid (JA) pathways. Later it can prime pathogen-specific responses according to the pathogen's lifestyle. Interestingly, Hx primes redox-related genes to produce an anti-oxidant protective effect, which might be critical for limiting the infection of necrotrophs. Our Hx-IR findings also strongly suggest that it is an attractive tool for the molecular characterization of the plant alarmed state, with the added advantage of it being a natural compound.

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Section: Priming By Natural Compoundsmentioning

confidence: 99%

Priming of plant resistance by natural compounds. Hexanoic acid as a model

Aranega-Bou¹,

Leyva²,

Finiti³

et al. 2014

Front. Plant Sci.

200

171

View full text Add to dashboard Cite

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“…vitK3 is also known as menadione, a compound that has been isolated from fungi and phanerogams (35), where it was first studied as a plant regulator (36). The function of menadione in the defense against plant pathogens has been shown in several studies (37)(38)(39).…”

Section: Figmentioning

confidence: 99%

Vitamin K ₃ Induces the Expression of the Stenotrophomonas maltophilia SmeVWX Multidrug Efflux Pump

Blanco

Corona

Sánchez

et al. 2017

Antimicrob Agents Chemother

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Stenotrophomonas maltophilia is an opportunistic pathogen with increasing prevalence, which is able to cause infections in immunocompromised patients or in those with a previous pathology. The treatment of the infections caused by this bacterium is often complicated due to the several intrinsic antibiotic resistance mechanisms that it presents. Multidrug efflux pumps are among the beststudied mechanisms of S. maltophilia antibiotic resistance. Some of these efflux pumps have a basal expression level but, in general, their expression is often low and only reaches high levels when the local regulator is mutated or bacteria are in the presence of an effector. In the current work, we have developed a yellow fluorescent protein (YFP)-based sensor with the aim to identify effectors able to trigger the expression of SmeVWX, an efflux pump that confers resistance to quinolones, chloramphenicol, and tetracycline when it is expressed at high levels. With this purpose in mind, we tested a variety of different compounds and analyzed the fluorescence signal given by the expression of YFP under the control of the smeVWX promoter. Among the tested compounds, vitamin K 3 , which is a compound belonging to the 2-methyl-1,4-naphthoquinone family, is produced by plants in defense against infection, and has increasing importance in human therapy, was able to induce the expression of the SmeVWX efflux pump. In addition, a decrease in the susceptibility of S. maltophilia to ofloxacin and chloramphenicol was observed in the presence of vitamin K 3 , in both wild-type and smeW-deficient strains.

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“…MSB, first studied as a plant growth regulator (Rama-Rao et al, 1985), has been widely demonstrated to function as plant defense elicitor against several pathogens in a number of different plant species (Borges et al, 2003, 2004, 2009; Liu et al, 2006; Pushpalatha et al, 2007; ShengYi et al, 2007). Changes in gene expression in response to 0.2 mM MSB at different time-points post-treatment, using microarray technology, show that MSB leads to a unique molecular mark by inducing differentially the expression of 158 genes.…”

Section: Msb: a Novel Priming Agentmentioning

confidence: 99%