Effect of glucose and glucitol analogues on respiration by mycelia ofPuccinia graminis

McKay, David; Maclean, D. J.

doi:10.1016/0147-5975(92)90017-l

Cited by 5 publications

(2 citation statements)

References 14 publications

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“…The possibility of DOG impairing cellular metabolism in fungi is likely (El-Ghaouth et al, 1997) who mention that the safety of DOG for human consumption needs to be established without specifying mycotoxins as possible risks. Glucose analogues appear to target control pathways of glucose metabolism (McKay and Maclean, 1992) and so could conceivably increase patulin biosynthesis by diverting substrates (i.e. acetate) to polyketide synthesis as required by patulin production.…”

Section: Article In Pressmentioning

confidence: 99%

Some fungicides and growth inhibitor/biocontrol-enhancer 2-deoxy-d-glucose increase patulin from Penicillium expansum strains in vitro

Paterson

2007

Crop Protection

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This study assessed the effect of disease control agents, fungicides and 2-deoxy-D-glucose (DOG), on a mycotoxin, patulin, production by strains of Penicillium expansum. Fungicides and DOG were added individually to agar on which the fungus was then grown. In an initial screen of six fungicides, three indicated that patulin was stimulated. These were tested further at a range of concentrations and colony diameters (cd) and patulin production were measured. Although patulin production appeared similar at each concentration in most cases, cd were reduced by fungicide in two out of three cases. So patulin was stimulated in relation to the diameter of the fungal colonies. This is interesting from an academic standpoint and also has applied relevance to fruit producers. In addition, the growth inhibitor and biocontrol-enhancer DOG appeared to stimulate patulin production although results were not statistically significant. The effect of fungal control agents on mycotoxin production requires consideration.

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Section: Article In Pressmentioning

confidence: 99%

Some fungicides and growth inhibitor/biocontrol-enhancer 2-deoxy-d-glucose increase patulin from Penicillium expansum strains in vitro

Paterson

2007

Crop Protection

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“…However, 2-deoxyglucose is known to be an inhibitor of several biochemical processes such as respiration, glucose metabolism, glucose transport and biosynthesis of cell walls. It thereby inhibits cellular processes such as glucoseinduced activation of spores and cell growth (McKay & MacLean, 1992;Bourret, 1987;Biely et al, 1971). A lectin has recently been isolated from A .…”

Section: Discussionmentioning

confidence: 99%

UV inhibition of the nematode infection process in Arthrobotrys oligospora and Dactylaria candida

Friman

1993

Journal of General Microbiology

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The effects of UV irradiation on infection of nematodes by two nematode-trapping fungi were studied. Five minutes UV irradiation of the fungi caused an inhibition of the infection process in both Arthrobotrys oligospora and Dactylaria candida. After the nematodes were captured, the infection process stopped; the nematodes were still moving at a time when the nematodes in untreated controls were completely digested. The UV-irradiated fungi were still alive and were capable of further growth. After 15 min UV irradiation the number of captured nematodes was also reduced. Inhibition studies with cycloheximide showed differences between the two fungi. The nematodes were still alive 24 h after capture by treated cultures of A. oligospora while the infection process was normally completed by D. candida. There were minor differences in the peptide pattern on a SDS-PAGE gel between proteins from untreated and UV-irradiated mycelia of both fungi. Both the results from inhibition experiments and changes in the peptide pattern after UV irradiation suggest that the target molecules affected by UV irradiation may have been proteins involved in the infection process, and not the DNA. No effect of UV irradiation was observed on molecules that had been suggested previously to be involved in the nematode infection process (toxins, lectins and proteases).

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Changes in Saccharide Metabolism Induced by Infection of Camellia Sinensis by Exobasidium Vexans

Pius¹,

Krishnamurthy²,

Nelson³

1998

Biologia plant.

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Effect of glucose and glucitol analogues on respiration by mycelia ofPuccinia graminis

Cited by 5 publications

References 14 publications

Some fungicides and growth inhibitor/biocontrol-enhancer 2-deoxy-d-glucose increase patulin from Penicillium expansum strains in vitro

Some fungicides and growth inhibitor/biocontrol-enhancer 2-deoxy-d-glucose increase patulin from Penicillium expansum strains in vitro

UV inhibition of the nematode infection process in Arthrobotrys oligospora and Dactylaria candida

Changes in Saccharide Metabolism Induced by Infection of Camellia Sinensis by Exobasidium Vexans

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