铁皮石斛种子共生萌发与非共生萌发比较观察  

Comparative Observation on Symbiotic and Non-symbiotic Germination of Dendrobium officinale Seeds

作　　者：赵琦 曹小勇[1,2] 宋斯文 曾海涛 ZHAO Qi;CAO Xiaoyong;SONG Siwen;ZENG Haitao(College of Biological Science and Engineering,Shaanxi University of Technology,Hanzhong Shaanxi 723000,China;Shaanxi Province Key Laboratory of Bio-resources,Hanzhong Shaanxi 723000,China;Qinling-Bashan Mountains Bioresources Comprehensive Development C.I.C.,Hanzhong Shaanxi 723000,China;State Key Laboratory of Qinba Biological Resources and Ecological Environment(Cultivating),Shaanxi University of Technology,Hanzhong Shaanxi 723000,China)

机构地区：[1]陕西理工大学生物科学与工程学院,陕西汉中723000 [2]陕西省资源生物重点实验室,陕西汉中723000 [3]陕南秦巴山区生物资源综合开发协同创新中心,陕西汉中723000 [4]陕西理工大学秦巴生物资源与生态环境省部共建国家重点实验室(培育),陕西汉中723000

出　　处：《种子》2024年第4期93-96,103,共5页Seed

基　　金：秦巴山区特色生物资源保护与开发县域科技创新试验示范站(Z20220051)。

摘　　要：铁皮石斛是我国名贵中草药,但由于其种子较小,无胚乳,在自然条件下难以繁殖,导致野生资源匮乏。本研究对铁皮石斛种子在光照条件下的共生萌发和非共生萌发进行研究比较。结果表明,胶膜菌属真菌(Tulasnella sp.)促进铁皮石斛种子萌发;共生萌发种子萌发率高、生长快,播种21 d萌发率达90%,而非共生萌发的种子此时萌发率仅36%。研究表明,铁皮石斛共生萌发效果优于非共生萌发。Dendrobium officinale is a valuable Chinese herb in China,but because of its small seeds and no endosperm,it is difficult to reproduce under natural conditions,resulting in a lack of wild resources.The symbiotic and non-symbiotic germination of Dendrobium officinale seeds under light conditions were studied and compared in this study.The results showed that Tulasnella sp.promoted the seed germination of Dendrobium officinale.Symbiotic germinated seeds had high germination rate and fast growth,and the germination rate reached 90%after 21 days of sowing,while the germination rate of non-symbiotic germinated seeds was only 36%.The results showed that symbiotic germination of Dendrobium officinale was better than non-symbiotic germination.

关 键 词：铁皮石斛 共生萌发 非共生萌发 种子 

分 类 号：S567.239[农业科学—中草药栽培]