globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1912327117
论文题名:
High productivity in hybrid-poplar plantations without isoprene emission to the atmosphere
作者: 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.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期:3
起始页码: 1596
结束页码: 1605
语种: 英语
英文关键词: Biofuel ; Genetically modified organism ; Hydroxyl radical ; Oxidative stress ; Thermotolerance
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
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.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164356
Appears in Collections:气候变化与战略

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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, Portland, OR 97207, United States; Moore, D.J.P., School of Natural Resources and the Environment, University of Arizona, Tucson, AZ 85721, United States; Trahan, N.A., School of Natural Resources and the Environment, University of Arizona, Tucson, AZ 85721, United States; Neice, A.A., School of Natural Resources and the Environment, University of Arizona, Tucson, AZ 85721, United States; Shiach, I., School of Natural Resources and the Environment, University of Arizona, Tucson, AZ 85721, United States; Barron-Gafford, G.A., School of Geography and Development, University of Arizona, Tucson, AZ 85721, United States; Ibsen, P., Department of Botany and Plant Science, University of California, Riverside, CA 92507, United States; McCorkel, J.T., Biospheric Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States; Bernhardt, J., Institute for Microbiology, Ernst-Moritz-Arndt University, Greifswald, 17487, Germany; Schnitzler, J.-P., Research Unit Environmental Simulation, Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, Neuherberg, 85764, Germany

Recommended Citation:
Monson R.K.,Winkler B.,Rosenstiel T.N.,et al. High productivity in hybrid-poplar plantations without isoprene emission to the atmosphere[J]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(3)
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