Transcriptome Reveals the Rice Response to Elevated Free Air CO2 Concentration and TiO2 Nanoparticles

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	Transcriptome Reveals the Rice Response to Elevated Free Air CO2 Concentration and TiO2 Nanoparticles
	Xu, Mei-Ling ; Zhu, Yong-Guan ; Gu, Kai-Hua ; Zhu, Jian-Guo ; Yin, Ying ; Ji, Rong ; Du, Wen-Chao ; Guo, Hong-Yan
刊名	ENVIRONMENTAL SCIENCE & TECHNOLOGY
	2019-10-15
卷号	53 期号:20 页码:11714-11724
ISSN号	0013-936X
英文摘要	Increasing CO2 levels are speculated to change the effects of engineered nanomaterials in soil and on plant growth. How plants will respond to a combination of elevated CO2 and nanomaterials stress has rarely been investigated, and the underlying mechanism remains largely unknown. Here, we conducted a field experiment to investigate the rice (Oryza TiO2, 0 and 200 mg kg(-1)) using a free-air CO2 enrichment system with different CO2 levels (ambient similar to 370 mu mol mol(-1) and elevated similar to 570 mu mol mol(-1)). The results showed that elevated CO2 or nano-TiO2 alone did not significantly affect rice chlorophyll content and antioxidant enzyme activities. However, in the presence of nano-TiO2, elevated CO2 significantly enhanced the rice height, shoot biomass, and panicle biomass (by 9.4%, 12.8%, and 15.8%, respectively). Furthermore, the Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis revealed that genes involved in photosynthesis were up-regulated while most genes associated with secondary metabolite biosynthesis were down-regulated in combination-treated rice. This indicated that elevated CO2 and nano-TiO2 might stimulate rice growth by adjusting resource allocation between photosynthesis and metabolism. This study provides novel insights into rice responses to increasing contamination under climate change.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43318]
专题	生态环境研究中心_土壤环境科学实验室
作者单位	1.Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, Xiamen 361021, Fujian, Peoples R China 3.Chinese Acad Sci, State Key Lab Urban & Reg Ecol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Xu, Mei-Ling,Zhu, Yong-Guan,Gu, Kai-Hua,et al. Transcriptome Reveals the Rice Response to Elevated Free Air CO2 Concentration and TiO2 Nanoparticles[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2019,53(20):11714-11724.
APA	Xu, Mei-Ling.,Zhu, Yong-Guan.,Gu, Kai-Hua.,Zhu, Jian-Guo.,Yin, Ying.,...&Guo, Hong-Yan.(2019).Transcriptome Reveals the Rice Response to Elevated Free Air CO2 Concentration and TiO2 Nanoparticles.ENVIRONMENTAL SCIENCE & TECHNOLOGY,53(20),11714-11724.
MLA	Xu, Mei-Ling,et al."Transcriptome Reveals the Rice Response to Elevated Free Air CO2 Concentration and TiO2 Nanoparticles".ENVIRONMENTAL SCIENCE & TECHNOLOGY 53.20(2019):11714-11724.