酪氨酸及酪氨酸降解途径中HGO基因突变对拟南芥幼苗生长的影响  

Effect of Tyrosine and Its HGO Gene Mutation in Biodegradation Pathway on Growth of Arabidopsis Seedlings

作　　者：陈彦成[1] 钱伟超[1] 彭志红[1] 任春梅[1,2] 

机构地区：[1]湖南农业大学生物科学技术学院,长沙410128 [2]作物基因工程湖南省重点实验室,湖南长沙410128

出　　处：《作物研究》2014年第3期251-253,共3页Crop Research

基　　金：国家自然科学基金项目(30671121);湖南省自然科学基金项目(12JJ2021);湖南省研究生科研创新项目(CX2013B301)

摘　　要：以拟南芥野生型Col-0和突变体hgo-1为研究材料,以MS为基本培养基,研究酪氨酸及酪氨酸降解途径对拟南芥幼苗生长的影响。结果表明:酪氨酸降解途径中HGO基因突变可以促进拟南芥幼苗的生长;同时发现,在含0.01 mmol/L酪氨酸的培养基中的Col-0和hgo-1幼苗生长量高于对照,而培养在分别含0.1、0.5、1.0mmol/L酪氨酸的培养基中的Col-0和hgo-1幼苗生长量低于对照组。这说明低浓度酪氨酸促进拟南芥幼苗的生长,高浓度酪氨酸则抑制拟南芥幼苗的生长。The effects of tyrosine and its HGO gene mutation in biodegradation pathway on growth of Arabidopsis seedlings were analyzed with wild type Col-0 and mutant hgo-1 as materials and with MS as basic medium. The results showed that HGO gene mutation in biodegradation pathway could promote the growth of Arabidopsis seedlings. The growth of Arabi-dopsis seedlings of Col-0 and hgo-1 grown on MS medium with 0.01 mmol/L tyrosine was higher than that of control, while the growth of seedlings grown on MS medium with 0.1 or 0.5 or 1.0 mmol/L tyrosine was lower than of control. It was proposed that low concentration of tyrosine promoted Arabidopsis seedling growth while high concentration of tyrosine inhibited seedling growth.

关 键 词：酪氨酸 拟南芥 HGO基因 

分 类 号：Q946[生物学—植物学]