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Crop Protection
Stevens, C., George Washington Carver Agric. E., Tuskegee University, Tuskegee Inst., Tuskegee, AL 36088, United States
Liu, J., George Washington Carver Agric. E., Tuskegee University, Tuskegee Inst., Tuskegee, AL 36088, United States
Khan, V.A., George Washington Carver Agric. E., Tuskegee University, Tuskegee Inst., Tuskegee, AL 36088, United States
Lu, J.Y., George Washington Carver Agric. E., Tuskegee University, Tuskegee Inst., Tuskegee, AL 36088, United States
Kabwe, M.K., George Washington Carver Agric. E., Tuskegee University, Tuskegee Inst., Tuskegee, AL 36088, United States
Wilson, C.L., USDA, ARS, NAA Appalachian Fruit and Res. Stn., Kearneyville, WV 25430, United States
Igwegbe, E.C.K., George Washington Carver Agric. E., Tuskegee University, Tuskegee Inst., Tuskegee, AL 36088, United States
Chalutz, E., ARO, Volcani Center, Bet Dagan 50250, Israel
Droby, S., ARO, Volcani Center, Bet Dagan 50250, Israel
Low-dose application of hormetic (adj. of hormetin, the agent of hormesis e.g. UV-C) ultraviolet light-C (UV-C) to 'Better Boy' and 'Floradade' tomatoes at maturity resulted in fruits that were significantly, firmer than non-irradiated control fruits at the same stage of maturity. As, firmness increased following UV-C treatment, polygalacturonase (PG) activity decreased. The enzyme activity was lower for UV-C treated fruits than the control. The PG activity in crude extract from decayed tomato tissue infected with Rhizopons stolonifer was lower than non-decayed fruits. UV-C treated tomatoes showed a 40% reduction in PG activity in decayed tissue compared to the control at 72h after treatment. The lesion diameter, and percent infection of non-treated and UV-C treated tomatoes at 72h after treatment, was 13.4mm (100% infection), and 5.3mm (47% infection), respectively. © 2003 Elsevier Ltd. All rights reserved.
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תנאי שימוש
The effects of low-dose ultraviolet light-C treatment on polygalacturonase activity, delay ripening and Rhizopus soft rot development of tomatoes
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Stevens, C., George Washington Carver Agric. E., Tuskegee University, Tuskegee Inst., Tuskegee, AL 36088, United States
Liu, J., George Washington Carver Agric. E., Tuskegee University, Tuskegee Inst., Tuskegee, AL 36088, United States
Khan, V.A., George Washington Carver Agric. E., Tuskegee University, Tuskegee Inst., Tuskegee, AL 36088, United States
Lu, J.Y., George Washington Carver Agric. E., Tuskegee University, Tuskegee Inst., Tuskegee, AL 36088, United States
Kabwe, M.K., George Washington Carver Agric. E., Tuskegee University, Tuskegee Inst., Tuskegee, AL 36088, United States
Wilson, C.L., USDA, ARS, NAA Appalachian Fruit and Res. Stn., Kearneyville, WV 25430, United States
Igwegbe, E.C.K., George Washington Carver Agric. E., Tuskegee University, Tuskegee Inst., Tuskegee, AL 36088, United States
Chalutz, E., ARO, Volcani Center, Bet Dagan 50250, Israel
Droby, S., ARO, Volcani Center, Bet Dagan 50250, Israel
The effects of low-dose ultraviolet light-C treatment on polygalacturonase activity, delay ripening and Rhizopus soft rot development of tomatoes
Low-dose application of hormetic (adj. of hormetin, the agent of hormesis e.g. UV-C) ultraviolet light-C (UV-C) to 'Better Boy' and 'Floradade' tomatoes at maturity resulted in fruits that were significantly, firmer than non-irradiated control fruits at the same stage of maturity. As, firmness increased following UV-C treatment, polygalacturonase (PG) activity decreased. The enzyme activity was lower for UV-C treated fruits than the control. The PG activity in crude extract from decayed tomato tissue infected with Rhizopons stolonifer was lower than non-decayed fruits. UV-C treated tomatoes showed a 40% reduction in PG activity in decayed tissue compared to the control at 72h after treatment. The lesion diameter, and percent infection of non-treated and UV-C treated tomatoes at 72h after treatment, was 13.4mm (100% infection), and 5.3mm (47% infection), respectively. © 2003 Elsevier Ltd. All rights reserved.
Scientific Publication
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