The effects of patulin from Penicillium vulpinum on seedling growth, root tip ultrastructure and glutathione content of maize

Ismaiel, Ahmed A.; Papenbrock, Jutta

doi:10.1007/s10658-014-0406-9

Cited by 26 publications

(41 citation statements)

References 42 publications

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“…It has been isolated from P. expansum [79] (P. leucopus [80], P. vulpinum [17] (P. claviforme [68]), P. griseofulvum [79] (P. patulum [69]), P. carneum, P. clavigerum, P. concentricum, P. coprobium, P. dipodomyicola, P. glandicola, P. gladioli, P. marinum, P. paneum, P. sclerotigenum [81], P. cyclopium [82], P. granulatum (P. divergens [83]), P. melinii, P. lapidosum [82], P. aurantiogriseum, P. canescens, P. chrysogenum, P. roqueforti, P. variabile [78], P. purpurogenum [84], Aspergillus clavatus, A. giganteus, A. longivesica [85], A. terreus [86], Byssochlamys fulva, B. nivea and Paecilomyces saturatus [87,88]. PAT has been detected in apples and apple products, and occasionally in other fruits such as pears, apricots, peaches and grapes [77].…”

Section: Producing Fungal Speciesmentioning

confidence: 99%

“…The toxic effect has been observed on germinating seeds, young seedlings, isolated plant tissue of wheat and maize and plants which had continuous applications of PAT until maturity. Inhibition of plant elongation phases due to PAT effect accompanied with reduction in seed number, seed weight, number of flowers and gain in biomass was observed when PAT in aqueous solution was applied to these cultivated plants [17,96].…”

Section: Phytotoxicitymentioning

confidence: 99%

“…Immediate respiratory inhibition in both germinating apple pollen and soybean suspension cultures by PAT was observed [98], but the effects on respiration are probably secondary. In a recent study [17], the mechanism of PAT phytotoxic action through its effect on the endogenous glutathione (GSH) concentration of maize seedlings was reported. Due to its electrophilic character, PAT has been reported to react in vitro with cellular nucleophiles such as proteins and GSH [17,99].…”

Section: Mechanism Of Actionmentioning

confidence: 99%

“…These fungi have been reported to produce a number of toxins as citrinin (CTN), cyclopiazonic acid (CPA), ochratoxin A (OTA), patulin (PAT), penicillic acid (PA), penitrem A (PNT), roquefortine (RQF), frequentin (FRE), palitantin (PAL), mycophenolic acid (MPA), viomellein (VIM), gliotoxin (GT), citreoviridin (CIV), rubratoxin B (RB) [11][12][13][14][15][16][17]. These fungal species and their mycotoxins contaminate harvested seeds causing losses of agricultural commodities in many zones of the world.…”

Section: Introductionmentioning

confidence: 99%

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Mycotoxins: Producing Fungi and Mechanisms of Phytotoxicity

2015

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Abstract:Mycotoxins are secondary fungal metabolites, toxic to humans, animals and plants. Among the hundreds of known mycotoxins, aflatoxins, citrinin, patulin, penicillic acid, tenuazonic acid, ochratoxin A, cytochalasins, deoxynivalenol, fumonisins, fusarin C, fusaric acid, and zearalenone are considered the types that most contaminate cereal grain. The majority of the mycotoxins in these groups are produced by three fungal genera: Aspergillus, Penicillium and Fusarium. These metabolites primarily affect the seed quality, germination, viability, seedling vigour, growth of root and cleoptile. Additionally, since the fungi responsible for the production of these mycotoxins are often endophytes that infect and colonize living plant tissues, accumulation of mycotoxins in the plant tissues may at times be associated with development of plant disease symptoms. The presence of mycotoxins, even in the absence of disease symptoms, may still have subtle biological effects on the physiology of plants. Several studies highlight the toxic effects of mycotoxins on animals and cell lines but little is known about the mode of action of most of these metabolites on plant cells. The most important mycotoxins with phytotoxic effects and their producers in addition to their discovery are briefly outlined below and will be addressed in this article.

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Section: Producing Fungal Speciesmentioning

confidence: 99%

Section: Phytotoxicitymentioning

confidence: 99%

Section: Mechanism Of Actionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mycotoxins: Producing Fungi and Mechanisms of Phytotoxicity

2015

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“…The supernatant was used for GSH content measurements by adding potassium phosphate buffer (pH = 8.0) and DTNB as the chromogenic agent. Absorbance was determined at 412 nm, whereas GSH content was calculated through comparison with a known concentration (Ismaiel and Papenbrock, 2014).…”

Section: Determination Of Gsh Content and Gst Activitymentioning

confidence: 99%

3-Dichloroacetyl oxazolidine protect maize from imazethapyr herbicide injury

Zhao

et al. 2016

Chilean J. Agric. Res.

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Safeners are an important tool used to ensure the safe using of herbicide. The objective of this paper was to investigate the protective effect of four 3-dichloroacetyl oxazolidine safeners (3-dichloroacetyl-2,2-dimethyl-1,3-oxazolidine [R-28725], racemate of 3-dichloroacetyl-2,2-dimethyl-4-ethyl-1,3-oxazolidine, and its two chiral stereoisomers) in reducing the injury caused by imazethapyr. Physiological and biochemical tests were conducted under laboratory condition, by using seed treatment with safeners and soil treatment with imazethapyr, respectively. The interaction of two safeners (R-28725 and R-stereoisomer) and imazethapyr reduced the injury of maize significantly, and also increased glutathione content, activity of glutathione S-transferases, and activity of acetolactate synthase in maize. When induced by R-stereoisomer, the GSH content in root and in shoot increased 100.7% and 73.6%, respectively. When induced by R-28725, the GST activity in vivo increased threefold and the GST activity in vitro more than doubled. The kinetic parameter Vmax of GST in the maize treated with R-28725 and R-stereoisomer increased by 102.2% and 81.9%, respectively, compared with the control. The results also showed that R-28725 and R-stereoisomer induced glutathione S-transferases affinity for the substrate of conjugation reaction significantly.

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Protective efficacy of phenoxyacetyl oxazolidine derivatives as safeners against nicosulfuron toxicity in maize

Zhang

Gao

Hoang

et al. 2020

Pest Management Science

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BACKGROUND: Herbicide safeners mitigate crop damage without reducing herbicide efficacy. Here, the protective effects of phenoxyacetyl oxazolidine derivatives as potential safeners were evaluated with a view toward reducing injury caused by sulfonylurea herbicide nicosulfuron to sensitive maize varieties. RESULTS: Growth indices demonstrated that the bioactivity of compound 9 (N-phenoxyacety-2-methyl-2,4-diethyl-1,3-oxazolidine) was superior to that of R-28725 and all other compounds tested. Compound 9 induced endogenous glutathione and upregulated glutathione-S-transferase (GST) in maize. Thus, it could enhance maize tolerance to nicosulfuron. Compared with the untreated water control group, the maximum reaction rate of GST was increased by 37.62%, while the maximum velocity of GST was decreased by 61.93% after treatment with compound 9. Acetolactate synthase relative activity was significantly enhanced in the case of treatment with compound 9, indicating the excellent protective effects of compound 9 against nicosulfuron in maize. CONCLUSIONS: The present work demonstrates that phenoxyacetyl oxazolidine derivatives are potentially efficacious as herbicide safeners and merit further investigation.

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The effects of patulin from Penicillium vulpinum on seedling growth, root tip ultrastructure and glutathione content of maize

Cited by 26 publications

References 42 publications

Mycotoxins: Producing Fungi and Mechanisms of Phytotoxicity

Mycotoxins: Producing Fungi and Mechanisms of Phytotoxicity

3-Dichloroacetyl oxazolidine protect maize from imazethapyr herbicide injury

Protective efficacy of phenoxyacetyl oxazolidine derivatives as safeners against nicosulfuron toxicity in maize

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