The exine of pollen wall is of different electron density, the nexine dense and the sexine, comprising tectum, bacules, and foot layer, relatively thin.
花粉壁的外壁分为外层和层,外层包括覆盖层、基粒棒和基足层
三层,
层只包含一层。
The exine of pollen wall is of different electron density, the nexine dense and the sexine, comprising tectum, bacules, and foot layer, relatively thin.
花粉壁的外壁分为外层和层,外层包括覆盖层、基粒棒和基足层
三层,
层只包含一层。
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