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澳大利亚土著草种子作为谷物:宏观结构,微观结构和组织化学

Farkhondeh Abedi¹, Claudia Keitel^2,3, Ali Khoddami^1,3

¹School of Life and Environmental Sciences, University of Sydney, Camperdown, NSW 2006, Australia.

|November 29, 2023

概括

这项研究描述了四种澳大利亚本土的草,揭示了独特的谷物结构和体化学. 了解这些特性是振兴本土谷物的关键,以获得食物和文化利益.

科学领域:

农业科学农业科学
植物学植物学
食品科学食品科学食品科学

背景情况:

殖民化破坏了第一民族人对澳大利亚本土草的传统食物使用.
振兴本土谷物系统需要了解它们的独特特性,以获得潜在的环境,经济,营养和文化益处.

研究的目的:

描述四种澳大利亚本土草的谷物结构和组织化学:扣子草 (Dactyloctenium radulans),卷曲米切尔草 (Astrebla lappacea),本土小米 (Panicum decompositum) 和哭泣草 (Microlaena stipoides).
为了比较这些属性与像小麦和土这样的化谷物.

主要方法:

使用立体显微镜进行全粒度成像.
粉和胚胎的可视化.
微观成像 (明亮场和光) 固定粒度的截面.

主要成果:

本地谷物表现出形状,大小和颜色的变化.
阿勒层通常厚度为1个细胞,除了哭泣草 (厚度为2个细胞).
与小麦和相比,内精细胞壁在原生谷物中较薄;粉分布各异,大多数原生谷物中粉集中在中心,与哭泣草不同. 蛋白质是丰富的aleurone/亚aleurone层,与按草也显示蛋白质丰富的内.
本地物种的胚胎比小麦的胚胎大得多.

结论:

澳大利亚原生草种之间存在谷物特性显著差异.
这些发现对农业食品行业产生了影响,特别是在适应气候变化和促进土著粮食系统方面.

关键词:

阿勒乌龙 (Aleurone) 是一个神经元.阿斯特雷布拉拉帕西亚 (曲的米切尔草)达克提洛克提尼姆拉杜兰斯 (按草)麦克罗莱纳 (Microlaena stipoides) (哭泣的草) 是一种植物.帕尼克姆分解 (原生小米)细胞壁上的细胞壁.一个胚胎胚胎.精子末端的精子.光显微镜的光显微镜.组织化学组织化学

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