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首页> 外文期刊>Revista brasileira de botanica >Morfoanatomia e ontogênese do fruto e semente de Byrsonima intermedia A. Juss. (Malpighiaceae)
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Morfoanatomia e ontogênese do fruto e semente de Byrsonima intermedia A. Juss. (Malpighiaceae)

机译：中间伯氏杆菌（Byrsonima intermedia A. Juss）的果实和种子的形态解剖学和个体发育。 （大花科）

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摘要

The morphology and anatomy for most of cerrado species are unknown, specially in relation to fruits and seeds. Thus, this work was carried out to analyze the morphology and anatomy of developing fruits and seeds of Byrsonima intermedia, one of the most frequent species of cerrado from S?o Paulo State. It was verified that the ovary is ovate, superior, tricarpellate and trilocular, with one ovule per locule; the outer epidermis is unisseriate and presents thick cuticle in the apex and thin in the base of the ovary; the mesophyll is multisseriate, parenchymatic and vascularizated; the inner epidermis is unisseriate with cells obliquelly elongated. The ovules are subcampilotropous, bitegmic, with nucellus projecting out of the micropyle; hipostasis and epistasis are observed. During the development of the pericarp, cellular divisions are restricted to the initial phase, occurring prior to the seminal differentiation. The mature fruit is fleshy, with fibrous pyrene forming three locules. The exocarp is unisseriate; the outer mesocarp is parenchymatous; in apical region of the fruit, sclereids occur surrounded by radial arranged parenchyma cells; in inner mesocarp some layers of sclereids occur, elongated in diverse ways; endocarp is multisseriate with the sclereids longitudinally elongated. The meso-endocarpic origin of the lignified regions of the pericarp is not in agreement to the classic definition of the drupoid fruits, that detaches only the wood endocarp. The seed presents reduced integuments and endosperm. The embryo axis is continuous with two cotyledons rolled spirally.
机译：大多数塞拉多物种的形态和解剖结构尚不清楚，特别是在果实和种子方面。因此，进行了这项工作以分析中间媒介伯罗尼玛（Byrsonima intermedia）发育中的果实和种子的形态和解剖学，该媒介是圣保罗州最常见的塞拉多物种之一。证实卵巢为卵形，上卵形，三心形和三叶形，每个子房一个胚珠。外表皮无刺毛，在顶端具有厚的表皮，在卵巢的基部薄。叶肉是多毛的，薄壁的和有血管的;内表皮无刺毛，细胞倾斜拉长。胚珠是近生密生的，具小节的，核从微珠伸出。观察到瞳孔缩小和上位。在果皮的发育过程中，细胞分裂仅限于初始阶段，发生在精液分化之前。成熟的水果是肉质的，纤维pyr形成三个小室。外果皮无刺;外果皮是薄壁的;在果实的顶端区域，硬化细胞被放射状排列的薄壁组织细胞包围。在中果皮中，出现了数层硬化菌，以多种方式伸长。内果皮是多毛的，其巩膜纵向拉长。果皮木质化区域的中-内果皮起源与核果类果皮的经典定义不一致，因为果皮类果仅分离木质果皮。种子的被膜和胚乳减少。胚轴是连续的，两个子叶螺旋滚动。

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