Increased artemisinin production in Artemisia annua L. by co-overexpression of six key biosynthetic enzymes

• 全文链接

通过共同过表达6个关键生物合成酶增加青蒿素产量

关键词：

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

全文链接：

//agri.nais.net.cn/topic/downloadFile/8e40b7e2-40d9-4630-93fd-6a2b2ccb5b8b

来源地址：

https://www.sciencedirect.com/science/article/pii/S0141813024071009?via%3Dihub

资源所属：

饲料用酶工程

类型：

学术文献

语种：

英语

原文发布日期：

2024-10-04

摘要：

Malaria remains a global health issue, especially in resource-limited regions. Artemisinin, a key antimalarial compound from Artemisia annua, is crucial for treatment, but low natural yields hinder large-scale production. In this study, we employed advanced transgenic technology to co-overexpress six key biosynthetic enzymes-Isopentenyl Diphosphate Isomerase (IDI), Farnesyl Pyrophosphate Synthase (FPS), Amorpha 4,11-diene Synthase (ADS), cytochrome P450 monooxygenase (CYP71AV1), cytochrome P450 oxidoreductase (AACPR) and artemisinic aldehyde D11 reductase (DBR2)-in A. annua to significantly enhance artemisinin production. Our innovative approach utilized a co-expression strategy to optimize the artemisinin biosynthetic pathway, leading to a remarkable up to 200 % increase in artemisinin content in T1 transgenic plants compared to nontransgenic controls. The stability and efficacy of this transformation were confirmed in subsequent generations (T2), achieving a potential 232 % increase in artemisinin levels. Additionally, we optimized transgene expression to maintain plant growth and development, and performed untargeted metabolite analysis using GC-MS, which revealed significant changes in metabolite composition among T2 lines, indicating effective diversion of farnesyl diphosphate into the artemisinin pathway. This metabolic engineering breakthrough offers a promising and scalable solution for enhancing artemisinin production, representing a major advancement in the field of plant biotechnology and a potential strategy for more cost-effective malaria treatment.