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首页> 美国卫生研究院文献>Proceedings of the Royal Society B: Biological Sciences >Determination of growth stages and metabolic profiles in Brachypodium distachyon for comparison of developmental context with Triticeae crops
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Determination of growth stages and metabolic profiles in Brachypodium distachyon for comparison of developmental context with Triticeae crops

机译：确定矮小黑麦草的生长阶段和代谢谱以与黑麦作物的生长环境进行比较

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摘要

Brachypodium distachyon is an emerging model plant for studying biological phenomena in temperate grasses. Study of the growth scale is essential to analyse spatio-temporal changes in molecular factors throughout the life cycle. For sensitive and robust staging based on morphology in B. distachyon, we demonstrated the utility of the BBCH (Biologische Bundesanstalt, Bundessortenamt and CHemical industry) scale, which is comparable to the Zadoks scale conventionally used for Triticeae crops. We compared the chronological progression of B. distachyon accessions Bd21 and Bd3-1, in addition to the progression of Chinese Spring wheat. The comparison of growth stages illustrates the morphological similarities and differences in the timing of life cycle events. Furthermore, we compared metabolite accumulation patterns across different growth stages and across different stress conditions using a widely targeted metabolome analysis. Metabolic profiling determined commonalities and specificities in chemical properties that were dependent on organisms, growth stages and/or stress conditions. Most metabolites accumulated equivalently in B. distachyon and wheat. This qualitative similarity indicated the superiority of B. distachyon as a model for Triticeae crops. The growth scale of B. distachyon should provide a conceptual framework for comparative analysis and for knowledge integration between this model grass and crops in the Pooideae subfamily.
机译：短枝曲霉（Brachypodium distachyon）是研究温带草中生物现象的新兴模型植物。研究生长规模对于分析整个生命周期中分子因素的时空变化至关重要。对于基于B. distachyon形态的敏感而稳健的分期，我们证明了BBCH（生物分类，生物分类和化学工业）规模的效用，该规模可与常规用于黑麦作物的Zadoks规模相媲美。除了中国春小麦的进程外，我们还比较了B. distachyon品种Bd21和Bd3-1的时间顺序。生长阶段的比较说明了生命周期事件发生时间的形态相似性和差异性。此外，我们使用了广泛针对的代谢组分析，比较了不同生长阶段和不同应激条件下的代谢物积累模式。代谢谱分析确定了取决于生物体，生长阶段和/或胁迫条件的化学性质的共性和特异性。大多数代谢物在地衣芽孢杆菌和小麦中均等积累。这种定性的相似性表明，B。distachyon作为黑麦作物模型的优势。 B. distachyon的生长规模应为比较分析和该模式草与禾本科亚科作物之间的知识整合提供概念框架。

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