The properties of (1,3)-β-glucans (i.e., callose) remain largely unknown despite their importance in plant development and defence. Here we use mixtures of (1,3)-β-glucan and cellulose, in ionic liquid solution and hydrogels, as proxies to understand the physico-mechanical properties of callose. We show that after callose addition the stiffness of cellulose hydrogels is reduced at a greater extent than predicted from the ideal mixing rule (i.e., the weighted average of the individual components' properties). In contrast, yield behaviour after the elastic limit is more ductile in cellulose-callose hydrogels compared with sudden failure in 100% cellulose hydrogels. The viscoelastic behaviour and the diffusion of the ions in mixed ionic liquid solutions strongly indicate interactions between the polymers. Fourier-transform infrared analysis suggests that these interactions impact cellulose organisation in hydrogels and cell walls. We conclude that polymer interactions alter the properties of callose-cellulose mixtures beyond what it is expected by ideal mixing.

中文翻译：

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通过对生物聚合物混合物的分析揭示了call糖和纤维素之间的相互作用。

尽管（1,3）-β-葡聚糖（即call质）的特性在植物发育和防御中很重要，但仍然未知。在这里，我们使用（1,3）-β-葡聚糖和纤维素的混合物在离子液体溶液和水凝胶中作为代理来理解of的物理机械性能。我们表明，添加call素后，纤维素水凝胶的硬度下降幅度要比理想混合规则（即各个组分特性的加权平均值）所预测的下降幅度更大。相反，与100％纤维素水凝胶突然失效相比，纤维素-ose质水凝胶在弹性极限之后的屈服行为更具延展性。粘弹性行为和离子在混合离子液体溶液中的扩散强烈表明了聚合物之间的相互作用。傅里叶变换红外分析表明，这些相互作用会影响水凝胶和细胞壁中的纤维素组织。我们得出的结论是，聚合物相互作用改变了ose糖-纤维素混合物的性能，超出了理想混合的预期范围。