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首页> 外文期刊>Plant Pathology >Exogenous application of l‐histidine suppresses bacterial diseases and enhances ethylene production in rice seedlings
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Exogenous application of l‐histidine suppresses bacterial diseases and enhances ethylene production in rice seedlings

机译：L-组氨酸的外源应用抑制了细菌疾病并增强了水稻幼苗中的乙烯生产

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摘要

> Exogenous application of l ‐histidine enhances resistance to pathogens in tomato ( Solanum lycopersicum ) and Arabidopsis thaliana via activation of the ethylene ( ET )‐dependent signalling pathway. In this study, the efficacy of l ‐histidine for suppression of bacterial diseases in rice seedlings was investigated. Rice seeds were soaked in 10?m m l ‐histidine, 10?m m l ‐lysine, or distilled water ( DW ) as a control for 48?h at 28?°C to stimulate germination. Treated seeds were then vacuum‐inoculated with Burkholderia glumae or B.?plantarii . Seedling diseases caused by both of these bacterial pathogens were suppressed by treatment with l ‐histidine but not by treatment with l ‐lysine or DW . Expression of an ET ‐responsive defence‐related gene, OsGLP8‐12 , was induced by treatment of seeds with l ‐histidine. As diseases were not suppressed in rice seedlings treated with l ‐histidine after vacuum‐inoculation, pretreatment of rice seedlings with l ‐histidine before inoculation might activate the plant immune system. Indeed, ethylene production and the abundance of 1‐aminocyclopropane‐1‐carboxylic acid ( ACC ) synthase 2 ( OsACS2 ) transcript increased in healthy seedlings grown from rice seeds treated with l ‐histidine but not in those treated with DW . Furthermore, treatment of rice seeds with ACC , an ethylene precursor, suppressed bacterial rice seedling rot caused by B.?glumae as effectively as did treatment with l ‐histidine, whereas treatment of rice seeds with aminooxyacetic acid, an inhibitor of ACC synthase, partially compromised disease suppression. Taken together, l ‐histidine seems to suppress bacterial rice seedling diseases via an ethylene‐dependent resistance pathway.
机译： > 外源性应用 l - 哈密胺增强了番茄中对病原体的耐药性（ Solanum lycopersicum ） 和 rapidopsis thaliana 通过激活乙烯（ ET - 依赖信号通路。在这项研究中，疗效 l - 研究了用于抑制水稻幼苗细菌疾病的砷。米种子浸泡在10？m中 m l -Histidine，10？米 m l -Lysine或蒸馏水（ DW ）在28℃下的48℃的控制，以刺激萌发。然后用处理的种子真空接种 Burkholderia glumae 或者 b.?plantarii 。通过处理抑制出这些细菌病原体引起的幼苗疾病 l - 砷，但不是通过治疗 l -LYSINE或 DW 。表达A. ET - 响应与防御相关的基因， osgp8-12 ，被种子的治疗诱发 l -Histidine。由于疾病在治疗的水稻幼苗中没有抑制 l - 接种真空后的白藜芦醇，米幼苗的预处理 l - 接种前的白藜丁可能激活植物免疫系统。实际上，乙烯生产和1-氨基环丙烷-1-羧酸的丰度（ ACC ）合成酶2（ osacs2 ）从用稻种种子种植的健康幼苗增加的成绩单增加 l - 哈崩，但不在那些治疗的人 DW 。此外，治疗水稻种子 ACC ，乙烯前体，被抑制的细菌米幼苗腐烂引起的 B.?glumae 和治疗一样有效 l - 白崩，虽然氨基氧乙酸治疗水稻种子，抑制剂 ACC 合成酶，部分受损的疾病抑制。一起携带， l - 白氨酸似乎通过乙烯依赖性抵抗途径抑制细菌水稻幼苗疾病。

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  • 来源
    《Plant Pathology》 |2019年第6期|共7页
  • 作者

    Yariyama S.; Ando S.; Seo S.; Nakaho K.; Miyashita S.; Kanayama Y.; Takahashi H.;

  • 作者单位

    Graduate School of Agricultural ScienceTohoku UniversitySendai Miyagi 980‐0845 Japan;

    Graduate School of Agricultural ScienceTohoku UniversitySendai Miyagi 980‐0845 Japan;

    Institute of Agrobiological SciencesNational Agriculture and Food Research Organization (NARO)Tsukuba Ibaraki 305‐8602 Japan;

    Institute of Vegetable and Floriculture ScienceNAROTsu Mie 514‐2392 Japan;

    Graduate School of Agricultural ScienceTohoku UniversitySendai Miyagi 980‐0845 Japan;

    Graduate School of Agricultural ScienceTohoku UniversitySendai Miyagi 980‐0845 Japan;

    Graduate School of Agricultural ScienceTohoku UniversitySendai Miyagi 980‐0845 Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 植物病理学;
  • 关键词

    bacterial rice seedling disease; Burkholderia glumae; Burkholderia plantarii; ethylene; l ‐histidine;

    机译：细菌水稻幼苗疾病;伯克德利亚胶原;伯克德利亚植物;乙烯;L-砷啶;

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