文献类型：期刊文献

中文题名：Anatomy, microstructure, and endogenous hormone changes in Gnetum parvifolium during anthesis

英文题名：Anatomy, microstructure, and endogenous hormone changes in Gnetum parvifolium during anthesis

作者：Qian Lan[1,2] Jian-Feng Liu[1] Sheng-qing Shi[1] Nan Deng[1] Ze-Ping Jiang[1] Er-Mei Chang[1]

第一作者：兰倩

机构：[1]State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China;[2]Research Institute of Forestry Policy and Information, Chinese Academy of Forestry, Beijing 100091, China

年份：2018

卷号：56

期号：1

起止页码：14-24

中文期刊名：植物分类学报：英文版

外文期刊名：Journal of Systematics and Evolution

收录：CSTPCD;;Scopus;CSCD:【CSCD2017_2018】；PubMed;

语种：英文

中文关键词：微观结构;解剖结构;荷尔蒙;开花期;种子植物;女性化;进化过程;雌雄异体

外文关键词：anatomy, endogenous hormones, Gnetum parvifolium, microstructure, phyletic evolution, sexual system

分类号：S512.101;Q57

摘要：The study of the sexual systems of plants is very important for understanding their evolutionary process. Gnetum is a pivotal species in comprehending the seed plant phylogeny. However, the sexual systems of this genus are not fully understood. To investigate the sexual system of Gnetum, the anatomical structure, microstructure, and endogenous hormones were investigated from the differentiation of flower buds to fertilization in the floral organs of female and male of G. parvifolium （Warb.） C.Y. Cheng, widely distributed in the north of China. After 2 years of field investigations, the staminate strobili were observed on female plants for the first time and the abortive ovules were also found on male plants. In addition, high levels of gibberellin A3 and zeatin riboside led to masculinization, whereas a high level of indole-3-acetic acid favored feminization. A comprehensive analysis of the results indicates that G. parvifolium may not be completely dioecious on morphology, but female and male plants can only perform their own gender function, which would provide a better understanding of the diversity of sexual systems in Gnetum, and reproductive structures of seed plants.