植物的变态茎及识别  

Modified Stems of Plants and Their Distinguishableness

作　　者：田静[1] 王洪武[2] 

机构地区：[1]重庆工商大学期刊社,重庆400067 [2]重庆工商大学计算机科学与信息工程学院,重庆400067

出　　处：《重庆工商大学学报（自然科学版）》2012年第11期61-64,共4页Journal of Chongqing Technology and Business University:Natural Science Edition

摘　　要：介绍了植物茎的基本知识和变态类型;说明植物茎的变态实质上是植物为适应环境变化而产生的一种特殊的功能,这种变态具有稳定的遗传性;指出识别地下变态茎与地下根的关键在于茎上有节、节间、芽,叶痕,而根没有;识别地上变态茎与变态叶的关键则在于变态部位的来源和位置。This paper introduces basic knowledge and morphological types of plant stems,expounds that the modified stems of plants are essentially a special function produced by plants to adapt environmental change,which is stably hereditary,and points out that the key to the distinguishableness of underground stems and underground roots is that stems have joints,buds and leaf scars but roots do not have and that the key to the distinguishableness of modified stems and modified leaves on the ground lies in the differentiation of the sources and locations of the modified parts.

关 键 词：根 茎 叶 变态 区别 

分 类 号：Q942[生物学—植物学]