Inhibition of Velvetleaf (<i>Abutilon theophrasti</i>) Germination and Growth by Benzyl Isothiocyanate, a Natural Toxicant

Wolf, Rebecca; Spencer, Gayland F.; Kwolek, W. F.

doi:10.1017/s004317450005966x

Cited by 64 publications

(48 citation statements)

References 10 publications

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“…Mason-Sedun et al (1986) and Oleszek (1987) have reported residues and macerates of tissues of B. juncea and B. nigra, which contained allyl isothiocyanate, to be inhibitory to wheat, barnyard grass and lettuce. Benzyl isothiocyanate, previously reported to be an inhibitor of velvet leaf ( Abutilon theophrasti) by Wolf et al (1984) was only moderately active in the present experiments. The only isothiocyanate without activity was the butyl derivative, whose occurrence in nature is limited.…”

Section: Compoundcontrasting

confidence: 79%

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Allelopathic potential of glucosinolates (mustard oil glycosides) and their degradation products against wheat

et al. 1990

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A number of glucosinolates and isothiocyanates were tested for their allelopathic potential against wheat. Most of the glucosinolates showed no activity against wheat, with the exception of glucobrassicin which was moderately active, as was sinapine thiocyanate. Isothiocyanates showed high activity against wheat germination and seedling growth. The most active compound, 2-phenethyl ITC completely inhibited wheat germination at 500 ppm. Allyl ITC showed high activity whereas other isothiocyanates tested were only moderately active. The data is discussed in relation to the possible use of some mustard species for effective weed control.

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Section: Compoundcontrasting

confidence: 79%

“…1), the involatile precursor of allyl isothiocyanate, and its products have been suggested to be allelopathic (Evenari, 1949) and Kutacek (1964) claimed similar activity for the indole glucosinolate, glucobrassicin (Ig). Benzyl isothiocyanate, from glucotropaeolin (Ie), has been similarly described by Wolf et al (1984).…”

Section: Introductionmentioning

confidence: 96%

Allelopathic potential of glucosinolates (mustard oil glycosides) and their degradation products against wheat

et al. 1990

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“…The susceptibility of plant species to an allelochemical under laboratory conditions principally depends on the physiological and biochemical properties of each plant. It was reported that the different sensitivity of a receiver plant to an allelochemical and to the phytotoxic extracts of a donor plant depended on the plant organs (Hasegawa et al 1992c;Suzuki et al 2001;Iqbal et al 2002) and growth stages (Wolf et al 1984;Horie et al 1989;Hasegawa et al 1992c;Li et al 1993;Kobayashi & Ito 1998). Jose & Gillespie (1998b) found that juglone inhibited soybean growth more than corn growth.…”

Section: Response Of Receiver Plant To Allelochemicalmentioning

confidence: 99%

Factors affecting phytotoxic activity of allelochemicals in soil

Kobayashi

2004

Weed Biology and Management

196

164

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Allelopathy is the inhibitory or stimulatory effect of a plant (donor) on other plants (receivers) through the chemicals released from the donor plant to the environment, mostly into the soil. These chemicals may reach the receiver plants in various ways, including leaching from plant foliage, exudation from the roots, and decomposition of dead residue of the donor plants. However, allelopathy in soil is a complicated phenomenon that is affected by soil condition, growth condition of the donor and receiver plants and climatic condition. Allelochemicals in soil are adsorbed on soil solids, and metabolized by chemical and biological reactions during the movement in soil. This behavior is affected by various soil factors, such as soil texture, organic and inorganic matter, moisture and organisms, which affect the phytotoxic activity in soil. If an allelochemical can directly affect the growth of receiver plants in soil, then the allelochemical might be present in the soil water so that it is directly available for absorption by the plant. Thus, it is suggested the concentration of an allelochemical in soil water is a dominant factor directly determining the phytotoxic activity in soil, and the concentration is controlled by soil factors that affect the behavior of adsorption, desorption and degradation in soil.

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“…ITCs show toxic effects against plants. The growth of velvetleaf seedlings was inhibited by benzyl ITC (Wolf et al, 1984) and sulforaphene (Brinker and Spencer, 1993). ITCs showed allelopathic effects on wheat (Bialy et al, 1990;Vaughn and Berhow, 1999).…”

Section: Introductionmentioning

confidence: 99%

Exogenously applied isothiocyanates enhance glutathione S-transferase expression in Arabidopsis but act as herbicides at higher concentrations

Hara

Yatsuzuka

Tabata

et al. 2010

Journal of Plant Physiology

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Isothiocyanates (ITCs) are sulfur-containing compounds that are generated by the glucosinolate-myrosinase system in plants. Although previous greenhouse studies have demonstrated the phytotoxicity of ITCs, their action modes are still unknown. In this study, we report the physiological responses of Arabidopsis thaliana treated with three exogenous ITCs: methyl ITC, allyl ITC, and phenethyl ITC. Administration of a high dose of each ITC inhibited plant growth and induced severe bleaching in the rosette leaves. The bleaching was concomitant with the elevation of electrolyte leakage and the generation of hydrogen peroxide. Although the three ITCs showed bleaching symptoms, phenethyl ITC was the most potent. A low dose of phenethyl ITC, at which the ITC did not promote leaf bleaching, enhanced the accumulation of transcripts of glutathione S-transferases (GSTs) in Arabidopsis. When 16 GST genes were tested, the levels of transcripts corresponding to 5 of the GST genes were enhanced in response to the phenethyl ITC treatment. In particular, the expression of a Tau class gene (AtGSTU19, At1g78380) responded to the phenethyl ITC treatment. Enhancement of the AtGSTU19 gene expression also occurred in the treatment of both allyl ITC and methyl ITC. These results suggest that the administration of ITCs to Arabidopsis at high doses has an herbicidal effect by inducing oxidative burst-like responses, but that administration at lower doses enhances the expression of specific GST genes in Arabidopsis.

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Inhibition of Velvetleaf (Abutilon theophrasti) Germination and Growth by Benzyl Isothiocyanate, a Natural Toxicant

Cited by 64 publications

References 10 publications

Allelopathic potential of glucosinolates (mustard oil glycosides) and their degradation products against wheat

Allelopathic potential of glucosinolates (mustard oil glycosides) and their degradation products against wheat

Factors affecting phytotoxic activity of allelochemicals in soil

Exogenously applied isothiocyanates enhance glutathione S-transferase expression in Arabidopsis but act as herbicides at higher concentrations

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