In the grasses the pollen tube is blocked at the stigma surface with pectins and callose. 禾本科植物的花粉管在柱头的表面被果胶质和胼胝质堵塞。
Incompatible pollen is blocked initially by pectins followed by callose deposition. 不亲和的花粉管首先是被果胶质堵塞,接着是胼胝质沉积。
Rheological Properties of Apple Pectins with Different Molecular Weights 不同相对分子量苹果果胶的流变性研究
Study on Properties of Potato Pulp Pectins from Three Different Extracting Procedures 不同提取工艺对马铃薯渣果胶性质的影响
The pectic substances can be classed protopectins, pectins and pectin acids. 果胶物质分成原生质果胶,果胶和果胶酸。
The precursors of these wall molecules, microfibrillar pectins, then accumulate and block the tube. 这些细胞壁分子前体&果胶纤丝发生积累并堵塞花粉管。
Some methods could also determine the pattern of methylation or the degree of pectins acetylation. 其中有些方法可以同时测定果胶的甲酯的取代方式或乙酰化取代度。
The methods for determinating degrees of pectins methylation were described, including colorimetric method, titration, GC, HPLC, NMR, IR and so on. 本文综述了果胶类化合物的甲酯化取代度的测定方法,包括比色、滴定、高效液相、气相、核磁共振、红外IR等方法。
Methods for Determinating Degrees of Pectins Methylation 测定果胶中甲酯化取代度的方法
Fiber Dimension and Ultrastructure of Cotton Stalk and the Distribution cf Pectins in its Cross-Section 棉杆纤维形态和超微结构及果胶质分布的研究
Intermittent warming resulted in solubilization and depolymerization of pectins and cellulose ( Fig. 3), thus leading to cell wall metabolism associated with fruit ripening. 中途加温则能促进果胶质和纤维素的增溶和解聚,引导细胞进行与果实成熟有关的细胞壁代谢。
The results showed that, during peach fruit softening, the backbone of pectins rich in galacturonic acid took rupture, arabinose and galactose that lied in the side chains of pectin, hemicellulose and cellulose were also degraded. 结果表明:在桃果实成熟软化过程中,富含半乳糖醛酸的果胶主链发生断裂,果胶、半纤维素、纤维素多糖中支链阿拉伯糖、半乳糖也发生不同程度的解离。
Fourier transform infrared ( FTIR) analysis showed that the deposition of cell wall components such as carboxylic acid, pectins and other polysaccharides in pollen tubes was changed by the two inhibitors. 傅立叶显微红外光谱(FTIR)分析表明,胞壁物质如羧酸、果胶和其他多糖类物质在花粉管中的沉积也受到两抑制剂的影响。
Recently, with popular in banana deep processing, utilizable materials The banana yield is also very high. People pay more attention on the comprehensive use of banana peel containing polyphenols and pectins by the rising processing of banana. 近年来,随着香蕉深加工兴起,对含有诸如多酚、果胶等可利用物质香蕉皮的综合利用,也在受到人们重视。
Besides, we explored the target molecules on cell membrane of RG-I-and HG-rich pectins. 此外,我们还探讨了果胶在细胞膜上的受体分子。