当前位置: 首页 > 文章 > 烟草fps转基因发状根的离体培养及其抗菌性 湖南农业大学学报(自然科学版) 2008,34 (4) 422-425
Position: Home > Articles > fps transgenic hairy roots culture in vitro and its resistance to Phytophthoro parasitica Journal of Hunan Agricultural University(Natural Sciences) 2008,34 (4) 422-425

烟草fps转基因发状根的离体培养及其抗菌性

作  者:
崔红;慕平利;李雪君;刘梦林
单  位:
河南农业大学国家烟草栽培生理生化研究基地
关键词:
法呢基焦磷酸合酶;转基因发状根;离体培养;抗病性
摘  要:
为研究fps基因在烟草发状根中的表达对发状根生长及物质代谢的影响,对fps转基因发状根株系k-3离体培养条件下的生长特性及抗菌性进行了研究.在摇瓶悬浮培养过程中,发状根生长呈现"S"型曲线,最初生长缓慢,到第10天开始迅速生长,25 d进入生长平台期;利用气升式内环流生物器,在25℃通气量为2 L/min,接种量为1 g的条件下培养25 d,发状根鲜重达94.7 g/L;以赤星病菌(Alternaria alternata)粗毒素为诱导子对发状根诱导培养,转基因发状根浸提液在黑胫病根刺接种试验中,能够明显提高烟草幼苗对黑胫病的抗性.
译  名:
fps transgenic hairy roots culture in vitro and its resistance to Phytophthoro parasitica
作  者:
CUI Hong,MU Ping-li,LI Xue-Jun,LIU Meng-lin(Henan Agricultural University,National Tobacco Cultivate Physiology and Biochemistry Research Center,Zhengzhou 450002,China)
关键词:
farnesyl diphosphate synthase;transgenic hairy root;bioreactor;disease resistance
摘  要:
To study the effects of Farnesyl Diphosphate Synthase gene(fps) expressing in tobacco hairy root on its growth and metabolites,transgenic hairy root strain k-3,expressing Mentha fps was cultured in vitro in two ways: suspension culture and bioreactor.It was found that the maximal production of hairy root as 94.7g/L was obtained in a internal loop air lift bioreactor when 1 g hairy roots cultured in 2 L liquid 1/2 MS medium for 25 d under 25 ℃ in dark condition.After induced by elicitor produced from Alternaria alternata,some fungi-resistance substance could accumulate in fps transgenic hairy root.The juice extracted from these hairy roots could prevent tobacco seedling from attacking by Phytophthoro parasitica.This result provides a bioreactor way to produce fungi inhibitor efficiently through transgenic hairy roots culture in vitro.

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