关于植物生殖概念的思考——植物学教材质疑(七)  

Critical Thinking on the Concept of Plant Reproduction Questioning Botany Textbooks(Ⅶ)

作　　者：黎维平[1] LI Wei-ping(College of Life Sciences,Hunan Normal University,Changsha 410081,Hunan,China)

机构地区：[1]湖南师范大学生命科学学院,中国湖南长沙410081

出　　处：《生命科学研究》2022年第2期182-188,共7页Life Science Research

基　　金：国家自然科学基金资助项目(31370265)。

摘　　要：链型植物的生殖方式复杂多样,因而植物学教材中生殖概念存在诸多混乱。首先,在苔藓植物和种子植物中,无性生殖通常被错误地埋没在有性生殖概念之中;其次,无性生殖、孢子生殖和营养繁殖等概念间存在严重混乱;第三,孢子生殖被当作是隐花植物的关键特征,而显花植物(种子植物)也行孢子生殖这一事实被忽略;第四,种子被错误地当作有性生殖器官,实际上种子的功能不是生殖而是传播。本文分析了这些错误,提出了一些另类思考。Reproduction is so complex and diverse in streptophytes that in botany textbooks there is a lot of confusion about this concept.Firstly,asexual reproduction is usually embedded wrongly in the concept of sexual reproduction in bryophytes and spermatophytes.Secondly,there is a severe confusion among these concepts:asexual reproduction,spore production and vegetative propagation.Thirdly,sporogony is always regarded as the key character of cryptogamic plants,but the fact that phanerogams(also called spermatophytes or seed plants)also undergo sporogony is neglected.Finally,seeds are mistakenly believed to be sexual reproductive organs although their function is not reproduction but dispersal.These errors are analyzed,and some critical thinking is presented in this paper.

关 键 词：链型植物 有性生殖 无性生殖 孢子生殖 扩散 生殖器官 

分 类 号：Q949.4[生物学—植物学]