J Integr Plant Biol. ›› 1974, Vol. 16 ›› Issue (2): -.

• Research Articles •    

A Preliminary Study of the Developmental Anatomy of Chinese Jujube Fruit

Wang Hsin-ling   

Abstract: The fruit of Chinese jujube (Ziziphus jujuba Mill.) was commonly known as "stone fruit", which posseses a course of growth and development quite different from that of other stone fruits. The latter usually consists of three developmental stages. However, that of the jujube fruit was identified to undergo four stages, namely, stardish-like, conical, long-ovate, and elliptic stages, each exhibited its own morphological and structural characteristics. It has been demonstrated that during the process of fruit ripening in jujube, there were two types of active intercalary meristem, the style-base meristem and the regenerated disk meristem. Their activities initiated a series of vigorous and complex alteration in various parts of jujube flower after blooming. The most prominant feature of such was that the initially formed cup-shaped calyx-tube, after the merisremic activation, was pushed to the fruit base and became inversely invaginated. The degenerated disk and floral-part residue were then located at the rim of the concaved calyx-tube forming a ring of brownish vestigial structure which was characteristic to jujube fruit. Since the non-carpel disk was also involved in the development of fruit, the au thor supports the idea that jujube fruit may not be a real stone fruit.

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