Susceptibility of Citrus junos 'Yamane' and 'Kaname No. 2' fruits to Xanthomonas citri pv. citri
2018
Imai, K. (Tokushima Agriculture, Forestry and Fisheries Technology Support Center, Myozai, Tokushima (Japan)) | Shinozaki, T. | Adachi, Y. | Shiotani, H.
To evaluate the susceptibility of fruits of Citrus junos 'Yamane' and 'Kaname No. 2' to Xanthomonas citri pv. citri, we inoculated attached fruits of C. junos and Citrus sinensis with the rifampicin-resistant strain KC20RR in June and July 2017. The bacterial populations in fruits of both species increased until 1 month after inoculation and then decreased. Symptoms developed by 14 days. The populations in lesions on 'Yamane' fruits were apparently smaller than those in C. sinensis 'Seike' fruits, possibly owing to physiological resistance of C. junos. There was no difference in the susceptibility of fruits or leaves between 'Yamane' and 'Kaname No. 2' by inoculation test. Populations in lesions on immature C. junos fruits were much larger than those on leaves at 2 months.
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