AaCOI1, Encoding a CORONATINE INSENSITIVE 1-Like Protein of Artemisia annua L., Is Involved in Development, Defense, and Anthocyanin Synthesis
文献类型: 外文期刊
作者: Liu, Rong 1 ; Wang, Jinbiao 1 ; Xiao, Mu 1 ; Gao, Xiewang 2 ; Chen, Jin 3 ; Dai, Yanjiao 3 ;
作者机构: 1.Shandong Univ, Sch Life Sci, Key Lab Plant Dev & Environm Adapt, Qingdao 266237, Peoples R China
2.Hunan Agr Univ, Coll Biosci & Biotechnol, Dept Hunan Prov Plant Genet & Mol Biol, Key Lab Educ, Changsha 410128, Peoples R China
3.Hunan Acad Agr Sci, Inst Agroenvironm & Ecol, Changsha 410125, Peoples R China
关键词: Artemisia annua; COI1; jasmonate signaling; development; defense; anthocyanin
期刊名称:GENES ( 影响因子:4.096; 五年影响因子:4.339 )
ISSN:
年卷期: 2020 年 11 卷 2 期
页码:
收录情况: SCI
摘要: Artemisia annua is an important medicinal plant producing the majority of the antimalarial compound artemisinin. Jasmonates are potent inducers of artemisinin accumulation in Artemisisa annua plants. As the receptor of jasmonates, the F-box protein COI1 is critical to the JA signaling required for plant development, defense, and metabolic homeostasis. AaCOI1 from Artemisia annua, homologous to Arabidopsis AtCOI1, encodes a F-box protein located in the nuclei. Expressional profiles of the AaCOI1 in the root, stem, leaves, and inflorescence was investigated. The mRNA abundance of AaCOI1 was the highest in inflorescence, followed by in the leaves. Upon mechanical wounding or MeJA treatment, expression of AaCOI1 was upregulated after 6 h. When ectopically expressed, driven by the native promoter from Arabidopsis thaliana, AaCOI1 could partially complement the JA sensitivity and defense responses, but fully complemented the fertility, and the JA-induced anthocyanin accumulation in a coi1-16 loss-of-function mutant. Our study identifies the paralog of AtCOI1 in Artemisia annua, and revealed its implications in development, hormone signaling, defense, and metabolism. The results provide insight into JA perception in Artemisia annua, and pave the way for novel molecular breeding strategies in the canonical herbs to manipulate the anabolism of pharmaceutic compounds on the phytohormonal level.
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