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首页> 外文期刊>International Journal of Molecular Sciences >Integrated -Omics: A Powerful Approach to Understanding the Heterogeneous Lignification of Fibre Crops
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Integrated -Omics: A Powerful Approach to Understanding the Heterogeneous Lignification of Fibre Crops

机译：综合组学：了解纤维作物异质木质化的有力方法

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摘要

Lignin and cellulose represent the two main components of plant secondary walls and the most abundant polymers on Earth. Quantitatively one of the principal products of the phenylpropanoid pathway, lignin confers high mechanical strength and hydrophobicity to plant walls, thus enabling erect growth and high-pressure water transport in the vessels. Lignin is characterized by a high natural heterogeneity in its composition and abundance in plant secondary cell walls, even in the different tissues of the same plant. A typical example is the stem of fibre crops, which shows a lignified core enveloped by a cellulosic, lignin-poor cortex. Despite the great value of fibre crops for humanity, however, still little is known on the mechanisms controlling their cell wall biogenesis, and particularly, what regulates their spatially-defined lignification pattern. Given the chemical complexity and the heterogeneous composition of fibre crops’ secondary walls, only the use of multidisciplinary approaches can convey an integrated picture and provide exhaustive information covering different levels of biological complexity. The present review highlights the importance of combining high throughput -omics approaches to get a complete understanding of the factors regulating the lignification heterogeneity typical of fibre crops.
机译：木质素和纤维素代表植物次生壁的两个主要成分，也是地球上最丰富的聚合物。木质素从数量上是苯丙氨酸途径的主要产物之一，赋予植物壁高的机械强度和疏水性，因此能够在容器中直立生长和高压水传输。木质素的特征在于其组成上的高度天然异质性，甚至在同一植物的不同组织中在植物次生细胞壁中的丰度也很高。一个典型的例子是纤维作物的茎，其茎被木质素包裹，木质素贫乏。尽管纤维作物对人类具有巨大的价值，但是，关于控制其细胞壁生物发生的机制，尤其是调节其空间定义的木质化模式的机制，人们所知甚少。考虑到纤维作物次生壁的化学复杂性和异质组成，只有采用多学科方法才能传达出完整的图像，并提供涵盖生物复杂性不同水平的详尽信息。本综述强调了结合高通量组学方法以全面了解调节纤维作物典型木质化异质性的因素的重要性。

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