文献类型：期刊文献

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

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

第一作者：兰倩

通信作者：Jiang, ZP[1];Chang, EM[1]

机构：[1]Chinese Acad Forestry, State Key Lab Tree Genet & Breeding, Key Lab Tree Breeding & Cultivat State Forestry A, Res Inst Forestry, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry Policy & Informat, Beijing 100091, Peoples R China

年份：2018

卷号：56

期号：1

起止页码：14-24

外文期刊名：JOURNAL OF SYSTEMATICS AND EVOLUTION

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000427293300002)】；

基金：We are very grateful to the National Nature Reserve Authority of Hainan Diaoluo Mountain for strongly supporting the field study. The research was funded by the special fund of the Research Institute of Forestry, Chinese Academy of Forestry (RIF2013-12) and the 948 program of the State Forestry Administration of China (Grant No. 2012-4-43).

语种：英文

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

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 A(3) 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.