Abstract Brazil has the greatest diversity of bamboos in the neotropics. This biodiversity is reflected in the diversity of plant architectures, ranging from trees to herbs. As cell walls constitute the main mechanical component of plant tissues and organs, the compositions of these walls may differ depending on the mechanical properties required for different plant life strategies. The present work examines the polysaccharide composition of the culm cell walls of six neotropical bamboo species from different habits and biomes. It also compares the percentage of monosaccharide compositions with other grasses studied as feedstock. The polysaccharide fractions were composed of small amounts of pectin, 1,3;1,4-β-glucans and the main hemicellulose was arabinoxylan, consistent with grasses in other subfamilies. Comparatively, the amount of glucose in the cell wall is higher in sugarcane, followed by bamboo and miscanthus. Different habits are not associated with different cell wall compositions. Tropical bamboo species could be a valuable resource with quite interesting possibilities for biotechnology.

中文翻译：

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来自巴西大西洋森林的竹科和禾本科（竹亚科；禾本科）的细胞壁组成

摘要 巴西是新热带地区竹类种类最多的国家。这种生物多样性反映在植物结构的多样性上，从树木到草本植物。由于细胞壁构成植物组织和器官的主要机械成分，这些细胞壁的组成可能因不同植物生命策略所需的机械特性而异。目前的工作检查了来自不同习性和生物群落的六种新热带竹种的秆细胞壁的多糖组成。它还比较了单糖成分与作为原料研究的其他草的百分比。多糖组分由少量果胶、1,3;1,4-β-葡聚糖组成，主要半纤维素是阿拉伯木聚糖，与其他亚科的草一致。比较，甘蔗的细胞壁葡萄糖含量较高，其次是竹子和芒草。不同的习惯与不同的细胞壁成分无关。热带竹种可能是一种宝贵的资源，具有非常有趣的生物技术可能性。