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Outline
Bacterial blight (caused by Xanthomonas oryzae pv. oryzae) poses a serious threat to global rice production. In recent years, the prevalence of bacterial blight has been increasing in the South China rice-growing region, posing significant challenges to rice production safety. This study reviews the predominant pathotypes of bacterial blight isolates in the South China rice region, evaluates the bacterial blight resistance of commercially released rice varieties in this region, and summarizes the technologies and applications for improving broad-spectrum resistance to this disease. By systematically analyzing the pathogenic variation across subregions and the differences in variety resistance, this work aims to provide targeted breeding recommendations and practical references for enhancing resistance to bacterial blight. Finally, prospects for breeding bacterial blight-resistant rice varieties in South China are outlined.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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