摘要
在建立霍山石斛的液体悬浮培养技术的基础上,添加诱导子硝普钠(SNP)、植酸(PA)和水杨酸(SA)。3种诱导子均可促进霍山石斛原球茎中生物碱的积累,0.1mmol·L-1SNP、7.5g·L-1PA和100μmol·L-1SA处理的原球茎,其生物碱含量分别为不作处理的2.02倍、1.84倍和1.62倍。促进霍山石斛生物碱积累的适宜诱导子为SNP,其适宜浓度为0.1mmol·L-1。高浓度的3种诱导子均导致培养液酸化,原球茎的相对电导率上升,其生物量和生物碱含量明显下降。
It was studied the influence of sodium nitroprusside(SNP),phytic acid(PA) and salicylic acid(SA) on cell growth and the alkaloid accumulation of suspension-cultured protocorn-like bodies(PLBs) of Dendrobium huoshanense.The results showed that all the three elicitors could enhance the accumulation of alkaloid.When treated with 0.1 mmol·L-1 SNP,7.5 g·L-1 PA,and 100 μmol·L-1 SA,respectively,the alkaloids accumulation elevated to 2.02-,1.84-,and 1.62-fold compared with control.The appropriate elicitor was SNP,whose optimum concentration was 0.1 mmol·L-1.High concentration of three elicitors could cause the medium acidification and increase the relative conductivity of PLBs,resulted in reduced biomass and alkaloids quantity.
出处
《植物生理学通讯》
CAS
CSCD
北大核心
2010年第5期423-426,共4页
Plant Physiology Communications
基金
安徽省教育厅重点项目(2006KJ054A)
安徽省教育厅十五人才基金
关键词
霍山石斛
原球茎
悬浮培养
生物碱
诱导子
Dendrobium huoshanense
protocorm-like bodies
suspension culture
alkaloids
elicitor