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首頁> 美國衛(wèi)生研究院文獻(xiàn)>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

機(jī)譯：綜合組學(xué)：了解纖維作物異質(zhì)木質(zhì)化的有力方法

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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.
機(jī)譯：木質(zhì)素和纖維素代表植物次生壁的兩個主要成分，也是地球上最豐富的聚合物。木質(zhì)素在數(shù)量上是苯丙氨酸途徑的主要產(chǎn)物之一，賦予植物壁高的機(jī)械強(qiáng)度和疏水性，因此能夠在容器中直立生長和高壓水傳輸。木質(zhì)素的特征在于其組成上的高度天然異質(zhì)性，甚至在同一植物的不同組織中在植物次生細(xì)胞壁中的豐度也很高。一個典型的例子是纖維農(nóng)作物的莖，其莖被木質(zhì)素包裹，木質(zhì)素貧乏。盡管纖維作物對人類具有巨大的價值，但是，對于控制其細(xì)胞壁生物發(fā)生的機(jī)制，尤其是調(diào)節(jié)其空間定義的木質(zhì)化模式的機(jī)制知之甚少?？紤]到纖維作物次生壁的化學(xué)復(fù)雜性和異質(zhì)組成，只有使用多學(xué)科方法才能傳達(dá)出完整的圖像，并提供涵蓋不同水平的生物復(fù)雜性的詳盡信息。本綜述強(qiáng)調(diào)了結(jié)合高通量組學(xué)方法以全面了解調(diào)節(jié)纖維作物典型木質(zhì)化異質(zhì)性的因素的重要性。

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