黄花蒿腺毛状分泌腺的起源和发育

Origin and development of biseriate glandular trichemes of Artemisia annua

应用石蜡切片制片方法,研究了黄花蒿腺毛状分泌腺的起源和发育.结果表明,黄花蒿腺毛状分泌腺由叶原基表皮的1个细胞发育而来,该细胞经1次纵裂和1次横裂形成4个细胞,位于表皮内的2个细胞经1次纵裂形成4个基细胞,位于表皮外的2个细胞经3次横裂形成2个柄细胞和6个分泌细胞.成熟腺体由12个细胞构成,包括4个基细胞,2个柄细胞,6个分泌细胞.

With the method of the paraffin sections, the origin and development of biseriate glandular tnclaemes （BGT）of Artemisia annua L. are studied. The results obtained show that a mother cell in epidermis of leaf primordium differentiate into a BGT. The first and second divisions of the mother cell are longitudinal and transverse respectively and four cells are formed, of which two cells in epidermis longitudinally are divided into four basal cells and two cells on epidermis transversally divided into two stalk cells and six glandular cells. A BGT originates from a epidermis cell and is constituted by twelve cells ： four basal cells, two stalk cells and six glandular cells.