Two banana cultivars differ in composition of potentially immunomodulatory mannan and arabinogalactan
Two banana cultivars differ in composition of potentially immunomodulatory mannan and arabinogalactan
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DOI：
10.1016/j.carbpol.2017.01.079
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发表时间：
2017-05-15
影响因子：
11.2
通讯作者：
Cordenunsi-Lysenko, Beatriz Rosana
中科院分区：
文献类型：
--
作者：
Shiga, Tania M.;Carpita, Nicholas C.;Cordenunsi-Lysenko, Beatriz Rosana
香蕉（Musa acuminata和M. acuminata）。水果细胞壁富含甘露聚糖、高半乳糖醛酸和木糖半乳糖醛酸、鼠李糖半乳糖醛酸- i和阿拉伯半乳糖醛酸，其中某些形式被认为具有免疫调节活性。品种Nanicao和Thap Maeo在这些多糖形式的组成差异方面表现出两种广泛的变异。纳米草的水溶性和不水溶性甘露聚糖含量都很低。这两个品种都含有大量的水溶性阿拉伯半乳聚糖。这些commelinoid单子叶缺乏禾本科植物的（1 -> - 3），(1 -> - 4)- β - d -葡聚糖，但Thap Maeo比Nanicao含有更多的与野生物种相关的非淀粉葡聚糖。两个品种均含有大量胼胝质。由于免疫调节活性与这些多糖的精细结构和相互作用有关，因此从野生物种遗传抗病育种计划必须考虑这些特殊的结构特征，以保持果实品质和有益特性。(C) 2017 Elsevier Ltd.版权所有。
Banana (Musa acuminata and M. acuminata xM. balbisiana) fruit cell walls are rich in mannans, homogalacturonans and xylogalacturonan, rhamnogalacturonan-I, and arabinogalactans, certain forms of which is considered to have immunomodulatory activity. The cultivars Nanicao and Thap Maeo represent two widely variants with respect to compositional differences in the forms of these polysaccharides. Nanicao has low amounts of mannan in the water-insoluble and water-soluble fraction. Both cultivars have high amounts of water-soluble arabinogalactan. These commelinoid monocots lack the (1 -> 3),(1 -> 4)-beta-D-glucans of grasses, but Thap Maeo has higher amounts of non-starch glucans associated with wild species than does Nanicao. High amount of callose was found in both cultivars. As immunomodulatory activity is associated with the fine structure and interaction of these polysaccharides, breeding programs to introgress disease resistance from wild species must account for these special structural features in retaining fruit quality and beneficial properties. (C) 2017 Elsevier Ltd. All rights reserved.