High levels of jasmonic acid antagonize the biosynthesis of gibberellins and inhibit the growth of Nicotiana attenuata stems
Heinrich, Maria ; Hettenhausen, Christian ; Lange, Theo ; Wuensche, Hendrik ; Fang, Jingjing ; Baldwin, Ian T. ; Wu, Jianqiang
2013
发表期刊PLANT JOURNAL
ISSN0960-7412
卷号73期号:4页码:591-606
摘要Hormones play pivotal roles in regulating plant development, growth, and stress responses, and cross-talk among different hormones fine-tunes various aspects of plant physiology. Jasmonic acid (JA) is important for plant defense against herbivores and necrotic fungi and also regulates flower development; in addition, Arabidopsis mutants over-producing JA usually have stunted stems and wound-induced jasmonates suppress Arabidopsis growth, suggesting that JA is also involved in stem elongation. Gibberellins (GAs) promote stem and leaf growth and modulate seed germination, flowering time, and the development of flowers, fruits, and seeds. However, little is known about the interaction between the JA and GA pathways. Two calcium-dependent protein kinases, CDPK4 and CDPK5, are important suppressors of JA accumulation in a wild tobacco species, Nicotiana attenuata. The stems of N.attenuata silenced in CDPK4 and CDPK5 (irCDPK4/5 plants) had dramatically increased levels of JA and exhibited stunted elongation and had very high contents of secondary metabolites. Genetic analysis indicated that the high JA levels in irCDPK4/5 stems accounted for the suppressed stem elongation and the accumulation of secondary metabolites. Supplementation of GA3 to irCDPK4/5 plants largely restored normal stem growth to wild-type levels. Measures of GA levels indicated that over-accumulation of JA in irCDPK4/5 stems inhibited the biosynthesis of GAs. Finally, we show that JA antagonizes GA biosynthesis by strongly inhibiting the transcript accumulation of GA20ox and possibly GA13ox, the key genes in GA production, demonstrating that high JA levels antagonize GA biosynthesis in stems.
关键词Jasmonic Acid Gibberellin Phytohormone Interaction Stem Elongation Gibberellin Biosynthesis Nicotiana Attenuata Trypsin Proteinase-inhibitors Plant-growth Cross-talk Molecular-mechanism Insect Herbivores Gene-expression Arabidopsis Responses Defense Accumulation
资助信息Max Planck Society
学科领域Plant Sciences
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/16601
专题资源植物与生物技术所级重点实验室
推荐引用方式
GB/T 7714
Heinrich, Maria,Hettenhausen, Christian,Lange, Theo,et al. High levels of jasmonic acid antagonize the biosynthesis of gibberellins and inhibit the growth of Nicotiana attenuata stems[J]. PLANT JOURNAL,2013,73(4):591-606.
APA Heinrich, Maria.,Hettenhausen, Christian.,Lange, Theo.,Wuensche, Hendrik.,Fang, Jingjing.,...&Wu, Jianqiang.(2013).High levels of jasmonic acid antagonize the biosynthesis of gibberellins and inhibit the growth of Nicotiana attenuata stems.PLANT JOURNAL,73(4),591-606.
MLA Heinrich, Maria,et al."High levels of jasmonic acid antagonize the biosynthesis of gibberellins and inhibit the growth of Nicotiana attenuata stems".PLANT JOURNAL 73.4(2013):591-606.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
2013072416.pdf(873KB) 开放获取--请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Heinrich, Maria]的文章
[Hettenhausen, Christian]的文章
[Lange, Theo]的文章
百度学术
百度学术中相似的文章
[Heinrich, Maria]的文章
[Hettenhausen, Christian]的文章
[Lange, Theo]的文章
必应学术
必应学术中相似的文章
[Heinrich, Maria]的文章
[Hettenhausen, Christian]的文章
[Lange, Theo]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。