文献类型：期刊文献

英文题名：Transcriptomic Analysis Revealed That Low-Density Aphid Infestation Temporarily Changes Photosynthesis and Disease Resistance but Persistently Promotes Insect Resistance in Poplar Leaves

作者：Shen, Wanna[1] Fu, Yuchen[1] Wang, Li[2] Yao, Yanxia[3] Zhang, Yinan[1] Li, Min[1] Liu, Huixiang[4] Su, Xiaohua[2] Zhao, Jiaping[1]

第一作者：Shen, Wanna

通信作者：Zhao, JP[1]

机构：[1]Chinese Acad Forestry, Inst Ecol Conservat & Restorat, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China;[3]Chinese Acad Forestry, Res Inst Forest Ecol Environm & Protect, Beijing 100091, Peoples R China;[4]Shandong Agr Univ, Coll Plant Protect, Shandong Res Ctr Forestry Harmful Biol Control Eng, Tai An 271018, Peoples R China

年份：2023

卷号：14

期号：9

外文期刊名：FORESTS

收录：;EI(收录号：20234014822487);Scopus(收录号：2-s2.0-85172726752);WOS:【SCI-EXPANDED(收录号:WOS:001080986100001)】；

基金：This research was funded by Jiaping Zhao from the Central Public-interest Scientific Institution Basal Research Fund of State Key Laboratory of Tree Genetics and Breeding, Grant No.CAFYBB2020ZY001-2 and the National Natural Science Foundation of China, Grant No. 32171776.

语种：英文

外文关键词：aphid infestation; flavonoid biosynthesis; photosynthesis; Populus alba var. pyramidalis; resistance; transcriptome

摘要：Insect infestations cause substantial changes in the leaves they attack, but the effects of insect infestation on photosynthesis and gene expression in the whole infestation period are rarely reported. In this study, the effects of poplar aphid (Chaitophorus populialbae Boyer de Fonscoloube) on photosynthetic rate and gene expression of Populus alba var. pyramidalis were studied, from 2 to 36 days after low-density aphid inoculation (DAI). The results revealed a dynamic change of photosynthesis in poplar after aphid infestation: compensatory increased at 8 DAI, was inhibited at 17 DAI, but repaired after 21 DAI. Aphid infestation promoted the expression of the majority of differentially expressed genes (DEGs) at 4, 6, 8, and 21 DAI. The DEGs were enriched into a plant-pathogen interaction, plant hormone signal transduction, and MAPK signaling pathway, suggesting a significant but transient resistance to disease or other stresses. Photosynthesis-related DEGs were downregulated at 8 DAI, which might result in photosynthetic inhibition at 17 DAI. The expression of flavonoid biosynthesis-related DEGs dynamic changed from all downregulated at 2 DAI to almost all upregulated at 21 DAI, suggesting a persistent resistance to insect infestation. This study reveals dynamic changes in photosynthesis, resistance to pathogens, and insects in poplar leaves after aphid infestation.