文献类型：期刊文献

英文题名：Conservation choice on the rare endangered plants Glehnia littoralis

作者：Pan, Yanxia[1] Chu, Jianmin[2] Yang, Hongxiao[1,3]

第一作者：Pan, Yanxia

通信作者：Yang, HX[1]

机构：[1]Qingdao Agr Univ, Changcheng Rd, Qingdao 266109, Shandong, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, State Forestry Adm, Key Lab Tree Breeding & Cultivat, Beijing 100091, Peoples R China;[3]Qingdao Engn Res Ctr Rural Environm, Qingdao 266109, Shandong, Peoples R China

年份：2018

卷号：6

期号：1

外文期刊名：CONSERVATION PHYSIOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000423734400002)】；

基金：This study was supported by the National Natural Science Foundation of China (31 370 707 and 31000322), Project of China Agricultural Research System (CARS-34), and Agricultural Scientific and Technological Innovation Project of Shandong Academy of Agricultural Sciences (CXGC2016B10).

语种：英文

外文关键词：Coastal plant; conservation; domestication; functional decline; Glehnia littoralis; seed

摘要：The coastal herbs Glehnia littoralis have been domesticated as traditional medicines for many centuries. The domestication may have caused changes or declines of cultivated G. littoralis (CGL) relative to wild G. littoralis (WGL). By comparing fruit properties of CGL and WGL, we tested the hypothesis that domesticated G. littoralis have suffered major declines, and human cultivation cannot be sufficient to conserve this species. We collected fruits of CGL and WGL in the Shandong peninsula, China, and compared their buoyancy in seawater, germination potential after seawater immersion, and thousand-grain weights. Float rates of the WGL and CGL fruits were 95.6 (mean) +/- 2.6% (standard deviation) and 30.0 +/- 7.1%, respectively. The germination potential of CGL was significantly reduced, although the thousand-grain weights of CGL (21.85 +/- 0.17 g) were higher than those of the WGL fruits (14.73 +/- 0.21 g). These results suggest that the CGL have experienced significant declines relative to the WGL, presumably due to the loss of seawater inundation, selection and dispersal. These declines disfavour the persistence of CGL, and human domestication and cultivation are believed to be insufficient for conserving G. littoralis. Sand coasts where WGL still persists should be designated timely as nature reserves to conserve this species.