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    • 5. 发明公开
    • PLANTS RESISTANT TO PATHOGENIC MICROORGANISMS GROWING IN VASCULAR TISSUES
    • 抗植物病原微生物在血管组织中生长的植物
    • EP2988590A2
    • 2016-03-02
    • EP14788964.6
    • 2014-04-24
    • Centro De Investigación Y De Estudios Avanzados Del Instituto Politécnico Nacional (Cinvestav)Secretaría de Agricultura, Ganadería, Desarrollo Rural, Pesca y Alimentacion
    • XOCONOSTLE CÁZARES, BeatrizCHAVARIN PALACIO, ClaudioLÓPEZ BUENFIL, José AbelGUERRA LUPIÁN, Miguel ÁngelMORALES GALVÁN, OscarZECUA NÁJERA, RebecaRUÍZ MEDRANO, RobertoGÓMEZ FELIPE, AndreaTRUJILLO ARRIAGA, Francisco Javier
    • A01H5/00C12N15/82
    • The present invention relates to the generation of transgenic plants resistant to infections caused by microorganisms restricted to the phloem, and it comprises the induction of the expression of a chimeric or fusion protein, which comprises a phloem protein of Citrus aurantifolia (CsPP16), a linker protein and a protein with antimicrobial activity; for example, with antibacterial activity or antibacterial hydrolytic enzyme. The portion of the fusion protein corresponding to the CsPP16 protein can exert its function of simplasmic movement, which occurs via the plasmodesmata of the plant to reach the phloem sieve tubes, while the antimicrobial portion can act to eliminate the microorganism, which settles in the phloem. The invention allows controlling the disease that causes the citrus yellowing or Huanglongbing (HLB), also applying to the treatment of other diseases caused by bacteria and other microorganisms that settle in the vascular tissue of higher plants. The invention includes the designed molecular vectors carrying and expressing a fusion protein and the transgenic plants obtained with a stable expression of said fusion protein and the transformation method of adult plants, healthy or diseased, to express the chimeric proteins and controlling, e.g., HLB disease. The transformation of diseased plants with the fusion protein is a method to produce healthy shoots free from the microorganism causing the disease; e.g., free from HLB bacteria.
    • 本发明涉及抗由限于韧皮部的微生物引起的感染的转基因植物的产生,并且其包含诱导嵌合或融合蛋白的表达,所述嵌合或融合蛋白包含柑橘(Citrus aurantifolia)的韧皮部蛋白(CsPP16),接头 蛋白质和具有抗微生物活性的蛋白质; 例如具有抗菌活性或抗菌水解酶。 对应于CsPP16蛋白质的融合蛋白质部分可以发挥其通过植物的胞间连丝发生以达到韧皮部筛管的质体运动的功能,而抗微生物部分可以起作用以消除定居在韧皮部中的微生物 。 本发明允许控制引起柑橘黄化或黄龙病(HLB)的疾病,还用于治疗由高等植物的维管组织中沉积的细菌和其他微生物引起的其他疾病。 本发明包括携带并表达融合蛋白的设计分子载体和获得的转基因植物,所述转基因植物具有所述融合蛋白的稳定表达和健康或患病的成年植物的表达嵌合蛋白和控制例如HLB疾病的转化方法 。 用融合蛋白转化病株是一种产生健康枝条的方法,该枝条不含引起疾病的微生物; 例如不含HLB细菌。