Improved control of apple and citrus fruit decay with a combination of Candida saitoana and 2-deoxy-D-glucose.
El-Ghaouth, A.; Smilanick, J. L.; Wisniewski, M.; Wilson, C. L.;
Plant Disease Year: 2000 Vol: 84 Issue: 3 Pages: 249-253 Ref: 22 ref.
2000
บทคัดย่อ
A combination of C. saitoana with 0.2% 2-deoxy-D-glucose to control decay of apple, lemon, and orange fruit was evaluated. Growth of C. saitoana in vitro was reduced by 2-deoxy-D-glucose; however, in apple wounds, the yeast grew as well in the presence of 2-deoxy-D-glucose as in its absence. When applied to fruit wounds before inoculation, the combination of C. saitoana with 0.2% 2-deoxy-D-glucose was more effective in controlling decay of apple, orange and lemon caused by Botrytis cinerea, Penicillium expansum and P. digitatum, respectively, than either C. saitoana or the application of a 0.2% solution of 2-deoxy-D-glucose alone. Increasing the concentration of 2-deoxy-D-glucose from 0.2 to 0.5% did not improve control significantly. The combination of C. saitoana with 0.2% 2-deoxy-D-glucose was also effective against infections established up to 24 h before treatment. When applied within 24 h after inoculation, the combination of C. saitoana with 0.2% 2-deoxy-D-glucose was very effective in co
ntrolling blue mould of apple and green mould of orange and lemon. The level of control of green mould was equivalent to imazalil treatment. When either C. saitoana or 0.2% 2-deoxy-D-glucose was applied within 24 h after inoculation, neither had an effect on disease development on apple, orange or lemon, and the incidence of decay was similar to the water-treated control.