Citrus cultivation is challenging due to the plethora of abiotic and biotic stresses faced by the crop. In recent years, production has been severely affected by diseases such as citrus canker and huanglongbing (HLB). Disease management is hampered as there is no field resistance to these diseases in any of the important commercially planted varieties. Traditionally, conventional breeding approaches have been applied for the improvement of the susceptible cultivars; however, this technique is laborious and time consuming. Genetic transformation of citrus allows for the rapid integration of novel genes into the plant’s genome to develop disease-resistant transgenic plants. Therefore, efforts have been made to utilize genetic engineering tools to develop genetically modified citrus that are resistant to citrus canker and HLB. This review summarizes the major achievements made in the development of citrus canker and HLB tolerance using transgenic technologies.

中文翻译：

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防治柑橘溃疡病和黄龙病的转基因柑橘植物的开发

由于作物面临过多的非生物和生物胁迫，柑橘栽培具有挑战性。近年来，柑橘溃疡病和黄龙病（HLB）等病害严重影响了生产。病害管理受到阻碍，因为任何重要的商业种植品种都没有对这些病害的田间抗性。传统上，常规育种方法已用于改良易感品种；然而，这种技术既费力又费时。柑橘的遗传转化允许将新基因快速整合到植物基因组中，以开发抗病转基因植物。因此，已经努力利用基因工程工具开发对柑橘溃疡病和HLB具有抗性的转基因柑橘。