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Anatomical study on the developing pericarp of selected Rosa species (Rosaceae)

机译：蔷薇科（蔷薇科）果皮发育的解剖学研究

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Results of anatomical studies on the developing pericarp of selected wild roses are presented. Using SEM and CLSM, the changes in the pericarp structure of 5 species have been observed during its formation, from the flowering stage to fully ripe achenes. In the morphological development of the pericarp of Rosa species two main phases can be distinguished: the phase of intensive growth of the pericarp during which the fruit achieves its final shape and volume, and the subsequent phase of pericarp ripening when no significant morphological changes in the pericarp occur. Similarly, in the process of the anatomical development of the pericarp two phases are noticeable, however, during both stages, great internal changes proceed in the fruit. The first phase consists of intensive cell divisions and enlargement, gradual thickening of cell walls and formation of all pericarp layers. Due to these changes, the pericarp achieves its final anatomical structure. The second phase, involving the pericarp ripening, is manifested in the modification of cell walls, mainly by their quick thickening, but first of all by their lignification. The lignification of pericarp cell walls begins in the inner endocarp; it proceeds in the outer endocarp, later in mesocarp and finishes in the hypodermal cells of the exocarp. The epidermal cells remain alive the longest and their walls do not (or hardly) become lignified. The death of all cells finishes the pericarp ripening. capacity.Additional key words: achenes, anatomy, SEM, lignin autofluorescence
机译：提出了一些野生玫瑰果皮发育的解剖学研究结果。使用SEM和CLSM，从开花期到完全成熟的瘦果，观察到5种树皮的结构变化。在Rosa种果皮的形态发育过程中，可以区分出两个主要阶段：果皮密集生长阶段，在此阶段果实达到其最终形状和体积;当果皮形态无明显变化时，果皮随后阶段成熟。果皮发生。同样，在果皮的解剖发育过程中，两个阶段很明显，但是在两个阶段中，果实内部都发生了很大的内部变化。第一阶段包括密集的细胞分裂和扩大，细胞壁逐渐增厚以及所有果皮层的形成。由于这些变化，果皮达到了最终的解剖结构。第二阶段，涉及果皮成熟，主要表现在细胞壁的变质上，主要是它们的快速增厚，但首先是它们的木质化。果皮细胞壁的木质化始于内果皮。它在外果皮中进行，随后在中果皮中进行，并在外果皮的皮下细胞中完成。表皮细胞存活时间最长，并且它们的壁没有（或几乎没有）被木质化。所有细胞的死亡完成了果皮的成熟。其他关键词：瘦果，解剖，SEM，木质素自发荧光

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