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首页> 外文期刊>International journal of plant sciences >THE CELL WALL POLYMERS OF THE CHAROPHYCEAN GREEN ALGA CHARA CORALLINA: IMMUNOBINDING AND BIOCHEMICAL SCREENING
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THE CELL WALL POLYMERS OF THE CHAROPHYCEAN GREEN ALGA CHARA CORALLINA: IMMUNOBINDING AND BIOCHEMICAL SCREENING

机译：硫绿色藻类小球藻的细胞壁聚合物：免疫结合和生物化学筛选

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摘要

Immunocytochemistry, comprehensive microarray polymer profiling (CoMPP), and biochemical analysis were used to elucidate the distribution of polymers in the cell walls of seven distinct parts of the shoot region of the thallus of the charophycean green alga Chara corallina. The cell walls contain a diverse set of polymers, many of which are commonly found in the cell walls of land plants, including cellulose, pectic polymers, arabinogalactan proteins, and several polymers that are classified as cross-linking polysaccharides in embryophytes, including heteroxylans and heteromannans. Evidence of the presence of xyloglucan was also found. Cellulose and homogalacturonan were found in virtually all parts of the vegetative and reproductive shoot thallus, whereas the occurrence of other polymers in the cell walls within the different cell types was more varied. These results, which demonstrate the shared biochemical characteristics of the cell walls of Chara and of embryophytes, support previous molecular, ultrastructural, and biochemical studies demonstrating the advanced phylogenetic status of this alga in the Charophyceae. This work also suggests that several of the polymers found in the cell walls of land plants most likely evolved before the colonization of terrestrial habitats by plants.
机译：免疫细胞化学，全面的微阵列聚合物分析（CoMPP）和生化分析被用来阐明聚合物在charophycean绿藻Chara Corallina的芽的七个不同部分的细胞壁中的分布。细胞壁包含多种多样的聚合物，其中许多通常在陆地植物的细胞壁中发现，包括纤维素，果胶聚合物，阿拉伯半乳聚糖蛋白，以及在胚胎植物中被归类为交联多糖的几种聚合物，包括异木聚糖和异甘露聚糖。还发现了木葡聚糖的存在的证据。几乎在营养和生殖芽的所有部位都发现了纤维素和高半乳糖醛酸聚糖，而在不同细胞类型中，细胞壁中其他聚合物的出现则更多。这些结果证明了Chara细胞壁和胚胎植物共有的生化特征，支持了先前的分子，超微结构和生化研究，证明了该藻类在Charophyceae中的先进的系统发生状况。这项工作还表明，在陆地植物的细胞壁中发现的几种聚合物最有可能在植物定居到陆地栖息地之前就已经进化了。

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  • 来源
    《International journal of plant sciences》 |2010年第4期|P.345-361|共17页
  • 作者

    David S. Domozych; Iben Sorensen; Filomena A. Pettolino; Anthony Bacic; William G. T. Willatst;

  • 作者单位

    Department of Biology and Skidmore Microscopy Imaging Center, Skidmore College, Saratoga Springs, New York 12866, U.S.A.;

    rnlnstitute of Molecular Biology and Physiology, Department of Biology, University of Copenhagen, DK-13532200, Copenhagen, Denmark;

    rnPlant Cell Biology Research Centre and Australian Centre for Plant Functional Genomics, School of Botany, University of Melbourne, Melbourne, Victoria 3010, Australia;

    rnPlant Cell Biology Research Centre and Australian Centre for Plant Functional Genomics, School of Botany, University of Melbourne, Melbourne, Victoria 3010, Australia;

    rnlnstitute of Molecular Biology and Physiology, Department of Biology, University of Copenhagen, DK-13532200, Copenhagen, Denmark;

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  • 正文语种 eng
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  • 关键词

    arabinogalactan proteins; cell wall; cellulose; Chara; homogalacturonans; xyloglucans;

    机译：阿拉伯半乳聚糖蛋白;细胞壁;纤维素角色同型半乳糖醛酸;木葡聚糖;
  • 入库时间 2022-08-18 03:45:40

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