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Elevated CO2 differentially affects tobacco and rice defense against lepidopteran larvae via the jasmonic acid signaling pathway
Lu, Chengkai1,2; Qi, Jinfeng1; Hettenhausen, Christian1; Lei, Yunting1; Zhang, Jingxiong1,2; Zhang, Mou3; Zhang, Cuiping1,2; Song, Juan1,2; Li, Jing1; Cao, Guoyan1; ul Malook, Saif1; Wu, Jianqiang1
2018-05-01
Source PublicationJOURNAL OF INTEGRATIVE PLANT BIOLOGY
ISSN1672-9072
Volume60Issue:5Pages:412-431
AbstractAtmospheric CO2 levels are rapidly increasing due to human activities. However, the effects of elevated CO2 (ECO2) on plant defense against insects and the underlying mechanisms remain poorly understood. Here we show that ECO2 increased the photosynthetic rates and the biomass of tobacco and rice plants, and the chewing lepidopteran insects Spodoptera litura and Mythimna separata gained less and more mass on tobacco and rice plants, respectively. Consistently, under ECO2, the levels of jasmonic acid (JA), the main phytohormone controlling plant defense against these lepidopteran insects, as well as the main defense-related metabolites, were increased and decreased in insect-damaged tobacco and rice plants. Importantly, bioassays and quantification of defense-related metabolites in tobacco and rice silenced in JA biosynthesis and perception indicate that ECO2 changes plant resistance mainly by affecting the JA pathway. We further demonstrate that the defensive metabolites, but not total N or protein, are the main factors contributing to the altered defense levels under ECO2. This study illustrates that ECO2 changes the interplay between plants and insects, and we propose that crops should be studied for their resistance to the major pests under ECO2 to predict the impact of ECO2 on future agroecosystems.
DOI10.1111/jipb.12633
Language英语
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/61256
Collection资源植物与生物技术所级重点实验室
Affiliation1.Chinese Acad Sci, Kunming Inst Bot, Yunnan Key Lab Wild Plant Resources, Dept Econ Plants & Biotechnol, Kunming 650201, Yunnan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Yunnan Agr Univ, Coll Plant Protect, Kunming 650201, Yunnan, Peoples R China
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GB/T 7714
Lu, Chengkai,Qi, Jinfeng,Hettenhausen, Christian,et al. Elevated CO2 differentially affects tobacco and rice defense against lepidopteran larvae via the jasmonic acid signaling pathway[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2018,60(5):412-431.
APA Lu, Chengkai.,Qi, Jinfeng.,Hettenhausen, Christian.,Lei, Yunting.,Zhang, Jingxiong.,...&Wu, Jianqiang.(2018).Elevated CO2 differentially affects tobacco and rice defense against lepidopteran larvae via the jasmonic acid signaling pathway.JOURNAL OF INTEGRATIVE PLANT BIOLOGY,60(5),412-431.
MLA Lu, Chengkai,et al."Elevated CO2 differentially affects tobacco and rice defense against lepidopteran larvae via the jasmonic acid signaling pathway".JOURNAL OF INTEGRATIVE PLANT BIOLOGY 60.5(2018):412-431.
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