Abstract

The composition of aromatic compounds in the liquid culture medium and the cells of the Rhizobium leguminosarum bv. viciae, Pseudomonas syringae pv. pisi, and Clavibacter michiganensis sps. sepedonicus bacteria grown in the presence of the negative allelopathic compound N-phenyl-2-naphthylamine (N-PNA) found in the root exudates of legume plants is analyzed. It is demonstrated that phthalates are the main products of N-PNA degradation. Bacteria can actively secrete them into the environment and convert phthalates of one type into other types by changing the alkyl groups linked to the o-phthalic acid via the ester bond in their molecules. The analyzed bacteria differed in the rate of N-PNA degradation (10 and 100 µM), which exerted different effects on their growth and viability. The proposed mechanisms could potentially be used to control the bacterial composition and number in the rhizosphere of legume plants with N-PNA and phthalates secreted by plant roots into the exudates, as well as the phthalates produced in the course of N-PNA degradation in the bacterial cells.

中文翻译：

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豆科根瘤菌对N-苯基-2-萘胺的降解 丁香假单胞菌（Pseudomonas syringae）pv。pisi和密歇根州的Clavibacter sps。败血症细菌

摘要

液体培养基和豆科根瘤菌细胞中芳香化合物的组成。蚜，丁香假单胞菌PV。pisi和密歇根州的Clavibacter sps。分析了在豆科植物根系分泌物中发现的负化感化合物N-苯基-2-萘胺（N-PNA）的存在下生长的败血杆菌。证明邻苯二甲酸盐是N-PNA降解的主要产物。细菌可以通过改变连接到所述烷基积极分泌它们成一种类型成其他类型的环境和转换邻苯二甲酸酯ö-邻苯二甲酸通过其分子中的酯键。分析细菌的N-PNA降解速率不同（分别为10和100 µM），这对其细菌的生长和生存能力产生了不同的影响。拟议中的机制可潜在地用于控制豆科植物的根际细菌组成和数量，其中N-PNA和植物根系分泌的邻苯二甲酸盐分泌到分泌物中，以及N-PNA降解过程中产生的邻苯二甲酸盐。细菌细胞。