木姜子油细胞的发育解剖学研究

利用薄切片法对木姜子茎叶油细胞的发育以及油细胞分布的研究结果表明：油细胞最早发生于第一叶原基以及茎端皮层和髓的基本分生组织中，在未出现油细胞以痛，上述器官的基本分生组织和原分生组织，难以区分油细胞的原始细胞与周围细胞。当油细胞原始细胞呈现出体积较大，液泡化程度较低，细胞核大而明显的特征才明显可辩，以后经过液泡融合，油细胞成熟和油细胞细胞质解体阶段而成为一贮油的囊，油细胞中未出现杯形构造。叶和茎中，

ANATOMICAL STUDIES ON THE DEVELOPMENT OF OIL CELLS IN LITSEA PUNGENS

The development and distribution of oil cells in the stem and leaf of Litsea pungens were studied with the help of method of semithin section.The results are as follows:Oil cells initiate from the ground meristem of the first leaf primordium and of the cortex and pith of shoot.Before the oil cells can be distinguished,it is difficult to tell oil cell initials from surrounding cells in the primordial meristem and ground meristem of leaf and shoot.Oil cell initials are distinguished by their larger size,by their lower vacuolation,and by their bigger nuclei.After initiation,the vacuoles of oil cells coalesce with each other,and oil cells reach their full maturity.Afterwards,the cytoplasm of oil cells disintegrate gradually and oil cells become a oil sac.In the oil cells,no wall protuberance (cupule) was observed.The developmental courses of oil cells in stem and leaf are alike,and oil cells distribute in the mesophyll of leaf and the cortex and pith of stem.