Toxicity of Beta–phenethyl Isothiocyanate to Certain Fungi

Hooker, William Jackson; Walker, J. C.; Smith, F. G. Walton

doi:10.1002/j.1537-2197.1943.tb10312.x

Cited by 12 publications

(5 citation statements)

References 6 publications

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“…Walker, Morell, and Foster (1937) observed the antifungal activity of mustard oils and of cruciferous plant extracts containing allyl and phenethyl isothiocyanates, which was confirmed by Hooker, Walker, and Smith (1943). In addition, Greenhalgh and Mitchell (1976), Gamliel and Stapleton (1993) reported that isothiocyanates released from cabbage tissues are toxic towards Peronospora parasitica, Pythium ultimum and Sclerotium rolfsii.…”

Section: Fungicidal Activitiessupporting

confidence: 54%

Bio-protective effects of glucosinolates – A review

Vig

Rampal

Thind

et al. 2009

LWT - Food Science and Technology

250

156

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Section: Fungicidal Activitiessupporting

confidence: 54%

Bio-protective effects of glucosinolates – A review

Vig

Rampal

Thind

et al. 2009

LWT - Food Science and Technology

250

156

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“…The antifungal properties of GLs and their enzymatic hydrolysis derived products (EHDPs) and their role in plant resistance have also been known for a long time. In 1937, Walker et al observed the antifungal activity of mustard oils; Hooker et al, in 1943, confirmed the antifungal activity of cruciferous plant extracts containing allyl and phenethyl isothiocyanates. More recently, Mithen et al (1986) and Angus et al (1994) showed that some GLs and their EHDPs protected rapeseed from Laeptosphaeria maculans and wheat from Gaeumannomyces graminis.…”

Section: Introductionmentioning

confidence: 75%

In Vitro Fungitoxic Activity of Some Glucosinolates and Their Enzyme-Derived Products toward Plant Pathogenic Fungi

Manici

Lazzeri

Palmieri

1997

J. Agric. Food Chem.

223

151

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The enzymatic hydrolysis of glucosinolates (GLs), typical compounds of Cruciferae, produces molecules with fungitoxic activity. Eleven GLs and their enzymatic hydrolysis products obtained by myrosinase were tested in vitro against Fusarium culmorum. Toxicity of hydrolysis products from glucoiberin, glucotropaeolin, sinigrin, and epiprogoitrin were assayed on eight plant pathogenic fungi. The results showed (i) the native GLs showed no fungitoxic activity, whereas their hydrolysis products inhibited fungal growth depending on their chemical structure; (ii) the hydrolysis products from glucoiberin, glucoerucin, glucocheirolin, and glucotropaeolin were the most effective, with 50% inhibition of fungal growth at 0.1 mg/mL; (iii) the fungitoxic activity of hydrolysis products obtained from glucoiberin, glucotropaeolin, sinigrin, and epiprogoitrin was confirmed on eight pathogenic fungi, with different responses depending on their chemical structure; (iv) the most effective hydrolysis products were those from glucoiberin, showing EC50 values of 0.05 mg/mL on Rhizoctonia solani, Sclerotinia sclerotiorum, Diaporthe phaseolorum, and Pythium irregulare and a minimum inhibitory concentration varying from 0.1 to 1.2 mg/mL. Keywords: Cruciferae; isothiocyanates; Fusarium culmorum; myrosinase

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“…Research, largely laboratory based, has shown that these ITCs can be potent toxins for a variety of soil‐borne pathogens, nematodes, and insect predators of both shoots and roots (e.g. Hooker et al ., 1943; Brown & Morra, 1997; Borek et al ., 1998; Sarwar et al ., 1998; Gardiner et al ., 1999; Smith & Kirkegaard, 2002; Lazzeri et al ., 2004; Halkier & Gershenzon, 2006), and allelopathic for other species (Evenari, 1949; Bialy et al ., 1990; Norsworthy & Mechan, 2005).…”

Section: Introductionmentioning

confidence: 99%

Distribution of glucosinolates and sulphur‐rich cells in roots of field‐grown canola (Brassica napus)

et al. 2008

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Summary• To investigate the role played by the distribution pattern of glucosinolates (GSLs) in root systems in the release of biocides to the rhizosphere, GSLs have been localized, for the first time, to specific regions and cells in field-grown roots.• GSL concentrations in separated tissues of canola (Brassica napus) were determined by chemical analysis, and cell-specific concentrations by extrapolation from sulphur concentrations obtained by quantitative cryo-analytical scanning electron microscopy (SEM).• In roots with secondary growth, GSL concentrations in the outer secondary tissues were up to 5× those of the inner core. The highest GSL concentrations (from sulphur measurements) were in two cell layers just under the outermost periderm layer, with up to 100× published concentrations for whole roots. Primary tissues had negligible GSL.• Release and renewal of the peripheral GSLs is probably a normal developmental process as secondary thickening continues and surface cells senesce, accounting for published observations that intact roots release GSLs and their biocide hydrolosates to the rhizosphere. Absence of myrosin idioblasts close to the root surface suggests that GSLs released developmentally are hydrolysed by myrosinase in the rhizosphere, ensuring a continuous localized source of biotoxic hydrolysates which can deter soil-borne pests, and influence microbial populations associated with longlived components of the root system.

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Toxicity of Beta–phenethyl Isothiocyanate to Certain Fungi

Cited by 12 publications

References 6 publications

Bio-protective effects of glucosinolates – A review

Bio-protective effects of glucosinolates – A review

In Vitro Fungitoxic Activity of Some Glucosinolates and Their Enzyme-Derived Products toward Plant Pathogenic Fungi

Distribution of glucosinolates and sulphur‐rich cells in roots of field‐grown canola (Brassica napus)

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