气候变化领域集成服务门户(CCPortal): High productivity in hybrid-poplar plantations without isoprene emission to the atmosphere

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DOI	10.1073/pnas.1912327117
	High productivity in hybrid-poplar plantations without isoprene emission to the atmosphere
	Monson R.K.; Winkler B.; Rosenstiel T.N.; Block K.; Merl-Pham J.; Strauss S.H.; Ault K.; Maxfield J.; Moore D.J.P.; Trahan N.A.; Neice A.A.; Shiach I.; Barron-Gafford G.A.; Ibsen P.; McCorkel J.T.; Bernhardt J.; Schnitzler J.-P.
发表日期	2020
ISSN	0027-8424
起始页码	1596
结束页码	1605
卷号	117 期号:3
英文摘要	Hybrid-poplar tree plantations provide a source for biofuel and biomass, but they also increase forest isoprene emissions. The consequences of increased isoprene emissions include higher rates of tropospheric ozone production, increases in the lifetime of methane, and increases in atmospheric aerosol production, all of which affect the global energy budget and/or lead to the degradation of air quality. Using RNA interference (RNAi) to suppress isoprene emission, we show that this trait, which is thought to be required for the tolerance of abiotic stress, is not required for high rates of photosynthesis and woody biomass production in the agroforest plantation environment, even in areas with high levels of climatic stress. Biomass production over 4 y in plantations in Arizona and Oregon was similar among genetic lines that emitted or did not emit significant amounts of isoprene. Lines that had substantially reduced isoprene emission rates also showed decreases in flavonol pigments, which reduce oxidative damage during extremes of abiotic stress, a pattern that would be expected to amplify metabolic dysfunction in the absence of isoprene production in stress-prone climate regimes. However, compensatory increases in the expression of other proteomic components, especially those associated with the production of protective compounds, such as carotenoids and terpenoids, and the fact that most biomass is produced prior to the hottest and driest part of the growing season explain the observed pattern of high biomass production with low isoprene emission. Our results show that it is possible to reduce the deleterious influences of isoprene on the atmosphere, while sustaining woody biomass production in temperate agroforest plantations. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Biofuel; Genetically modified organism; Hydroxyl radical; Oxidative stress; Thermotolerance
语种	英语
scopus关键词	carotenoid; flavonol; isoprene; ozone; terpenoid; abiotic stress; aerosol; air and air related phenomena; air quality; Arizona; Article; atmosphere; biological trait; biomass production; controlled study; extreme environment; nonhuman; Oregon; oxidative stress; photosynthesis; plant growth; plant stress; plantation; Populus; priority journal; proteomics; RNA interference
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/161083
作者单位	Monson, R.K., Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85721, United States, Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ 85721, United States; Winkler, B., Research Unit Environmental Simulation, Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, Neuherberg, 85764, Germany; Rosenstiel, T.N., Department of Biology, Portland State University, Portland, OR 97207, United States; Block, K., Research Unit Environmental Simulation, Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, Neuherberg, 85764, Germany; Merl-Pham, J., Research Unit Protein Science, Helmholtz Zentrum München, Neuherberg, 85764, Germany; Strauss, S.H., Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR 97331, United States; Ault, K., Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR 97331, United States; Maxfield, J., Department of Biology, Portland State University, Port...
推荐引用方式 GB/T 7714	Monson R.K.,Winkler B.,Rosenstiel T.N.,et al. High productivity in hybrid-poplar plantations without isoprene emission to the atmosphere[J],2020,117(3).
APA	Monson R.K..,Winkler B..,Rosenstiel T.N..,Block K..,Merl-Pham J..,...&Schnitzler J.-P..(2020).High productivity in hybrid-poplar plantations without isoprene emission to the atmosphere.Proceedings of the National Academy of Sciences of the United States of America,117(3).
MLA	Monson R.K.,et al."High productivity in hybrid-poplar plantations without isoprene emission to the atmosphere".Proceedings of the National Academy of Sciences of the United States of America 117.3(2020).