《植物生理学报》 2010, 46(12): 1211-1214

柽柳根对管花肉苁蓉寄生的反应

骆翔, 朱艳霞, 赵东平, 郭玉海*

中国农业大学农学与生物技术学院中药材研究中心, 北京100193

通信作者：郭玉海；E-mail: yhguo@cau.edu.cn；Tel: 010-62733853

摘　要：

采用石蜡切片技术以及酶联免疫法对管花肉苁蓉的寄主柽柳根进行研究, 结果表明: 接种有管花肉苁蓉的柽柳根随 着管花肉苁蓉的生长而增粗, 其初生导管有黄色粘性物质阻塞, 这些阻塞物中含有糖类和脂类物质, 随着管花肉苁蓉的生 长而消失。这可能与柽柳根内源激素脱落酸(ABA)和茉莉酸(JA)的调控有关。

关键词：管花肉苁蓉; 柽柳; 阻塞物; 植物激素

收稿：2010-09-01   修定：2010-10-22

资助：农业行业专项(200903001-2-3)、北京市科技计划(D07060200880701)、河北省科技攻关项目3276408D-4)。

Parasitism Response of Cistanche tubulosa (Schenk) R. Wight in Tamarix chinensis Lour. Root

LUO Xiang, ZHU Yan-Xia, ZHAO Dong-Ping, GUO Yu-Hai*

Chinese Medicinal Herbs Research Center, College of Agronomy and Biotechnology, China Agriculture University, Beijing 100193, China

Corresponding author: GUO Yu-Hai; E-mail: yhguo@cau.edu.cn; Tel: 010-62733853

Abstract:

The roots of Tamarix chinensis parasitised by Cistanche tubulosa were studied by paraffin-section method and enzyme-linked immunosorbent assay (ELISA). The results showed that the host roots got thicker with weight increasing of C. tubulosa. Yellow sticky obstruction, composed by polysaccharide and lipid, was found in primary xylem vessel of the host after stimulated by C. tubulosa, but disappeared along with the growth of C. tubulosa. It was supposed to be regulated by endogenous jasmonic acid (JA) and abscisic acid (ABA).

Key words: Cistanche tubulosa; Tamarix chinensis; obstruction; phytohormones