一种抗稻曲病菌的摩氏假单胞菌JP2-207及其抗性机制初探OACSTPCD
A Preliminary Study on the Mechanism of Pseudomonas mosselii JP2-207 Against Rice False Smut Fungus Ustilaginoidea virens
从水稻根际表面土壤分离到一株能有效抑制稻曲病菌(Ustilaginoidea virens)生长的细菌菌株JP2-207.16s rRNA基因片段扩增及系统发育树分析表明,JP2-207 属于摩氏假单胞菌(Pseudomonas mosselii).测序分析显示,JP2-207 全基因组为 1 个大小 5 702 443 bp的环状DNA,包含 5 154 个蛋白编码基因,22 个rRNA和 78 个tRNA基因.生物信息学分析预测了 9个与次生代谢产物生物合成相关的基因簇,其中多个基因簇产生的代谢物被报道对植物病原菌具有抑制活性.本研究为摩氏假单胞菌JP2-207 及其代谢产物防治水稻稻曲病的研究奠定了初步的理论基础.
Pseudomonas mosselii JP2-207 was isolated from the soil of the rhizosphere of rice plants,this strain showed obvious inhibitory activity against Ustilaginoidea virens,an important rice pathogen.The complete genome of P.mosselii JP2-207 consists of 5 702 443 bp with a circle chromosome,5 154 protein-coding genes,22 rRNA genes,and 78 tRNA.The genomic analysis revealed that 9 candidate gene clusters were involved in the biosynthesis of secondary metabolites.Together,this study provides preliminary results for exploring the antagonistic mechanism of rice false smut by P.mosselii JP2-207 and its secondary metabolites.
刘思慧;明珂;陈国庆;冯国忠
中国水稻研究所,杭州 310006台州市农业生态保护与质量安全中心,浙江台州 318000
农业科学
摩氏假单胞菌水稻稻曲病次生代谢产物生物合成基因簇生物防治
Pseudomonas mosseliiricerice false smut diseasemetabolitegene clustersbiocontrol
《中国稻米》 2024 (002)
13-17 / 5
浙江省重点研发计划项目(2021C02006);中央级公益性科研院所基本科研业务费(CPSIBRF-CNR-RI-202115)
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