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首页> 外文期刊>Russian Journal of Plant Physiology >Changes in the phytohormone levels in wheat calli as affected by salicylic acid and infection with Tilletia caries, a bunt pathogenic agent
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Changes in the phytohormone levels in wheat calli as affected by salicylic acid and infection with Tilletia caries, a bunt pathogenic agent

机译：水杨酸和T虫病致病因子Tilletia龋齿感染影响小麦愈伤组织中植物激素水平的变化

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摘要

The role of salicylic acid (SA) in growth regulation and the change in the levels of phytohormones (IAA, ABA, and cytokinins) were studied in the wheat calli co-cultured with bunt pathogen Tilletia caries. Calli infection with T caries resulted in the hypertrophied callus growth and simultaneous increase in phytohormone level. The addition of SA to the nutrient media decreased the callus growth induced by the pathogen, whereas the level of investigated phytohormones was not affected. In the SA-treated infected calli, the formation of necrotic lesions was observed in the zones of contact of the fungal mycelium with callus cells that limited pathogen growth. The authors suggest that the stabilization of the hormonal balance of plant cells at pathogenesis is one of the possible mechanisms of the SA protective action in vitro and in vivo. Hence, co-culturing wheat calli and T caries fungus appeared to be a convenient model for assessing SA protective action.
机译：水杨酸（SA）在生长调节和植物激素水平变化（IAA，ABA和细胞分裂素）中的作用已在与矮小病原体Tilletia龋齿共培养的小麦愈伤组织中进行了研究。 T龋的愈伤组织感染导致肥大的愈伤组织生长并同时增加植物激素水平。在营养培养基中添加SA可降低病原体诱导的愈伤组织生长，而所研究的植物激素水平不受影响。在SA处理的感染的愈伤组织中，在真菌菌丝体与限制病原体生长的愈伤组织细胞接触的区域中观察到了坏死性病变的形成。作者认为，在发病过程中植物细胞激素平衡的稳定化是SA体内外保护作用的可能机制之一。因此，共同培养小麦愈伤组织和龋齿真菌似乎是评估SA保护作用的便捷模型。

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