Inhibition of shoot branching in Arabidopsis by the artificially biosynthesized canonical strigolactone.

IF 1.4 4区 生物学 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY
Yuki Mizutori, Kotaro Nishiyama, Yoshiya Seto
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引用次数: 0

Abstract

Strigolactones (SLs) are apocarotenoid plant hormones that regulate shoot branching. The natural SLs can be divided into 2 groups, canonical and noncanonical SLs, according to those chemical structures. In a model plant, Arabidopsis thaliana, it has been thought to produce only noncanonical SLs. Moreover, in rice, it was suggested that canonical-SL such as 4-deoxyorobanchol (4DO) does not have a critical role in shoot branching inhibition. In this report, to understand the potential of canonical-SL in the shoot branching inhibition pathway in Arabidopsis, SL biosynthetic genes involved in canonical-SL production in other plant species were individually expressed in Arabidopsis. Our data clearly demonstrate that 5-deoxystrigol, but not 4DO, can inhibit shoot branching in Arabidopsis. Moreover, the results confirmed the important role of CLA methyltransferase in the shoot branching inhibition pathway in Arabidopsis.

人工合成的甾体内酯对拟南芥芽枝分枝的抑制作用。
独角孤内酯(SLs)是一种调节植物枝条分枝的类伪胡萝卜素植物激素。天然氨基酸根据其化学结构可分为正则型和非正则型两类。在模式植物拟南芥(Arabidopsis thaliana)中,它被认为只产生非规范的SLs。此外,在水稻中,4-脱氧凤尾鱼酚(4DO)等经典sl在茎枝分枝抑制中没有关键作用。为了了解canonical-SL在拟南芥茎部分枝抑制通路中的潜力,本研究在拟南芥中单独表达了其他植物中与canonical-SL产生相关的SL生物合成基因。我们的数据清楚地表明,5-脱氧马曲醇可以抑制拟南芥茎枝的分支,而不是4DO。此外,研究结果证实了CLA甲基转移酶(CLAMT)在拟南芥芽部分枝抑制途径中的重要作用。
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来源期刊
Bioscience, Biotechnology, and Biochemistry
Bioscience, Biotechnology, and Biochemistry 生物-生化与分子生物学
CiteScore
3.50
自引率
0.00%
发文量
183
审稿时长
1 months
期刊介绍: Bioscience, Biotechnology, and Biochemistry publishes high-quality papers providing chemical and biological analyses of vital phenomena exhibited by animals, plants, and microorganisms, the chemical structures and functions of their products, and related matters. The Journal plays a major role in communicating to a global audience outstanding basic and applied research in all fields subsumed by the Japan Society for Bioscience, Biotechnology, and Agrochemistry (JSBBA).
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