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Effect of UV-C Radiation on resistance of romaine lettuce (Lactuca sativa L.) against Botrytis cinerea and Sclerotinia minor

Abstract : The aim of this research was to examine the effect of UV-C on resistance of lettuce to Botrytis cinerea and Sclerotinia minor. Analysis of the lesion surfaces showed that plants exposed to UV-C were less susceptible to the two pathogens, especially on the fourth day after inoculation. Chlorophyll, carotenoid contents and malondialdehyde and hydrogen peroxide were assayed after 1 day and 4 days. Lettuces treated with UV-C and inoculated showed an increase in chlorophyll and carotenoid content, especially 24 h after inoculation, and low values of the two indicators of oxidative stress as compared with lettuces which were inoculated but did not receive UV-C treatment.
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https://hal.inrae.fr/hal-02630516
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Submitted on : Wednesday, May 27, 2020 - 5:51:37 AM
Last modification on : Monday, May 9, 2022 - 11:53:42 AM

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Chayma Ouhibi, Houneida Attia, Philippe C. Nicot, Laurent Urban, Mokhtar Lachaâl, et al.. Effect of UV-C Radiation on resistance of romaine lettuce (Lactuca sativa L.) against Botrytis cinerea and Sclerotinia minor. Journal of Phytopathology, Wiley, 2015, 163 (7-8), pp.578-582. ⟨10.1111/jph.12357⟩. ⟨hal-02630516⟩

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