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Sensitivity to gamma irradiation of fungi pathogenic to pears
Year:
1969
Authors :
Barkai-Golan, Rivka
;
.
Volume :
20
Co-Authors:
Barkai-Golan, R., The Volcani Institute of Agricultural Research, Bet Dagar, Israel
Ben-Arie, R., The Volcani Institute of Agricultural Research, Bet Dagar, Israel
Reich, S.G., The Volcani Institute of Agricultural Research, Bet Dagar, Israel
Kahan, R.S., Soreq Nuclear Research Centre, Yavne, Israel
Facilitators :
From page:
577
To page:
583
(
Total pages:
7
)
Abstract:
The effect of gamma irradiation at doses of 50-300 krad, on the germination ability of fungi in vitro, and prolongation of the incubation period in vivo, was studied with known spore populations of four fungi pathogenic to stored pears. Rot development and fungal control were examined in cold storage after irradiation of fruit inoculated with two radio-sensitive fungi. Inhibition of spore germination was found to be directly correlated to the strength of the radiation dose and indirectly correlated to the spore concentration. Penicillium expansum was the most sensitive to radiation both in culture and in fruit tissues. Some prolongation of the incubation period of P. expansum and of Botrytis cinerea, the two principal pathogens, occured after irradiation with 100 krad. With increasing dosage, the incubation period was more prolonged and staggered and the percentage of infected fruit began to decrease from 200 krad. Alternaria tenuis and Stemphylium botryosum were radiation-resistant. In spite of a decrease in germination ability at the higher doses, the pathogenicity and incubation period of both these fungi were not significantly affected. © 1969.
Note:
Related Files :
article
food irradiation
fruit
Penicillium
Radiation Effects
radiation exposure
radiation response
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More details
DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
27072
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:28
Scientific Publication
Sensitivity to gamma irradiation of fungi pathogenic to pears
20
Barkai-Golan, R., The Volcani Institute of Agricultural Research, Bet Dagar, Israel
Ben-Arie, R., The Volcani Institute of Agricultural Research, Bet Dagar, Israel
Reich, S.G., The Volcani Institute of Agricultural Research, Bet Dagar, Israel
Kahan, R.S., Soreq Nuclear Research Centre, Yavne, Israel
Sensitivity to gamma irradiation of fungi pathogenic to pears
The effect of gamma irradiation at doses of 50-300 krad, on the germination ability of fungi in vitro, and prolongation of the incubation period in vivo, was studied with known spore populations of four fungi pathogenic to stored pears. Rot development and fungal control were examined in cold storage after irradiation of fruit inoculated with two radio-sensitive fungi. Inhibition of spore germination was found to be directly correlated to the strength of the radiation dose and indirectly correlated to the spore concentration. Penicillium expansum was the most sensitive to radiation both in culture and in fruit tissues. Some prolongation of the incubation period of P. expansum and of Botrytis cinerea, the two principal pathogens, occured after irradiation with 100 krad. With increasing dosage, the incubation period was more prolonged and staggered and the percentage of infected fruit began to decrease from 200 krad. Alternaria tenuis and Stemphylium botryosum were radiation-resistant. In spite of a decrease in germination ability at the higher doses, the pathogenicity and incubation period of both these fungi were not significantly affected. © 1969.
Scientific Publication
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