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首页> 外文期刊>Seed Science Research >Allometric relationships between diaspore morphology and diaspore covering anatomy of herbaceous species from central-eastern Europe
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Allometric relationships between diaspore morphology and diaspore covering anatomy of herbaceous species from central-eastern Europe

机译：二血态形态与副血杂散覆盖中东欧洲中东地区草本植物的典型关系

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Anatomical and morphological seed traits are of great ecological importance and are a main subject of, for example, seed bank or endozoochory studies. However, we observed a lack of information about the relationship between seed anatomy and seed morphology and its ecological implications. To fill this gap, we linked the anatomical features of diaspore coverings to morphological characteristics of free seeds and one-seeded fruits. We predicted that: (1) the thickness and anatomical complexity of seed coat and pericarp are related to diaspore size and shape; and (2) the presence or absence of the pericarp may influence seed-coat thickness and anatomy. In our study we investigated diaspores of 39 central-eastern European herbaceous species and recorded the thickness and anatomical complexity of their seed coverings, and we determined diaspore mass and shape. Our results indicate that diaspore mass is positively related to covering thickness, lignification degree and anatomical complexity. This might be the case because bigger diaspores tend to remain on the soil surface and are more exposed to predation risk and environmental threat than smaller diaspores. Furthermore, more round-shaped diaspores had disproportionately thicker and more lignified coverings than long or flat ones, probably because round-shaped diaspores much more frequently form seed banks and therefore persist for a long time in the soil. We also found that free seeds as diaspores have a thicker and more lignified seed coat than seeds enclosed in fruits. In one-seeded fruits, the pericarp takes the protective role', it is thick, and the seed coat is poorly developed.
机译：解剖学和形态种子特征具有很大的生态重要性，并且是例如种子群或内燃冈历程研究的主要主题。然而，我们观察到有关种子解剖学和种子形态与其生态影响之间的关系的缺乏信息。为了填补这种差距，我们将二孔覆盖物的解剖特征与自由种子和单种果实的形态特征联系起来。我们预测：（1）种子外壳和果皮的厚度和解剖复杂性与二孔尺寸和形状有关; （2）Pericarp的存在或不存在可能影响种子涂层厚度和解剖学。在我们的研究中，我们研究了39个中东欧洲草本植物的Diasperes，并记录了种​​子覆盖物的厚度和解剖学复杂性，我们确定了延金属质量和形状。我们的结果表明，二血肿块与覆盖厚度，荨麻状度和解剖复杂性正相关。这可能是这种情况，因为较大的透过倾向于留在土壤表面上，并且比较小的缺光更大地暴露于捕食风险和环境威胁。此外，比长或扁平的覆盖物更圆形，更圆形的透过厚度较厚，可能是因为圆形的缺口更频繁地形成种子堤，因此在土壤中持续很长时间。我们还发现，透过的自由种子比封闭在水果中的种子更厚和更含糊的种子涂层。在一播种的水果中，Pericarp采取保护作用'，它厚，种子涂层很差。

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