Microarray expression profiling of Arabidopsis thaliana L. in response to allelochemicals identified in buckwheat.
Microarray expression profiling of Arabidopsis thaliana L. in response to allelochemicals identified in buckwheat.
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DOI：
10.1093/jxb/ern168
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发表时间：
2008
影响因子：
6.9
通讯作者：
Fujii Y
中科院分区：
文献类型：
--
作者：
Golisz A;Sugano M;Fujii Y
荞麦（Fagopyrum esculentum Moench）是一种重要的一年生植物，在许多国家栽培用于粮食或作为覆盖作物，并且其还通过释放化感物质用于农业经济系统中的杂草抑制。然而，关于化感物质的作用方式或植物对它们的防御反应知之甚少。在这里，微阵列显示94，85，和28个基因的显着较高的表达后6小时的暴露的化感物质荞麦碱，没食子酸，芦丁，分别与对照组相比。这些诱导基因分为不同的功能类别，主要是：与环境的相互作用;亚细胞定位;具有结合功能或辅因子要求的蛋白质;细胞拯救;防御和毒力;和代谢。与这些结果相一致，植物对化感物质的反应与病原体（生物胁迫）或除草剂（非生物胁迫）的反应相似，这会增加植物细胞中活性氧（ROS;随之而来的氧化胁迫）的浓度。这些数据表明，化感物质可能有相关的功能，至少部分，在生物和非生物胁迫信号之间的串扰，因为它们产生ROS，这已被提出作为这两种胁迫机制之间的关键共享过程。
Buckwheat (Fagopyrum esculentum Moench) is an important annual plant cultivated for grain or as a cover crop in many countries, and it is also used for weed suppression in agro-economic systems through its release of allelochemicals. Little is known, however, concerning the mode of action of allelochemicals or plant defence response against them. Here, microarrays revealed 94, 85, and 28 genes with significantly higher expression after 6 h of exposure to the allelochemicals fagomine, gallic acid, and rutin, respectively, compared with controls. These induced genes fell into different functional categories, mainly: interaction with the environment; subcellular localization; protein with binding function or cofactor requirement; cell rescue; defence and virulence; and metabolism. Consistent with these results, plant response to allelochemicals was similar to that for pathogens (biotic stress) or herbicides (abiotic stress), which increase the concentration of reactive oxygen species (ROS; with consequent oxidative stress) in plant cells. The data indicate that allelochemicals might have relevant functions, at least in part, in the cross-talk between biotic and abiotic stress signalling because they generate ROS, which has been proposed as a key shared process between these two stress mechanisms.
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影响因子：
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