Emission of methane from plants

被引：129

作者：

Nisbet, R. E. R. ^{[1
]}

Fisher, R. ^{[2
]}

Nimmo, R. H. ^{[1
]}

Bendall, D. S. ^{[1
]}

Crill, P. M. ^{[4
]}

Gallego-Sala, A. V. ^{[5
]}

Hornibrook, E. R. C. ^{[5
]}

Lopez-Juez, E. ^{[3
]}

Lowry, D. ^{[2
]}

Nisbet, P. B. R. ^{[2
,6
]}

Shuckburgh, E. F. ^{[7
]}

Sriskantharajah, S. ^{[2
]}

Howe, C. J. ^{[1
]}

Nisbet, E. G. ^{[2
]}

机构：

[1] Univ Cambridge, Dept Biochem, Cambridge CB2 1QW, England

[2] Univ London, Dept Earth Sci, Egham TW20 0EX, Surrey, England

[3] Univ London, Sch Biol Sci, Egham TW20 0EX, Surrey, England

[4] Univ Stockholm, Dept Geol & Geochem, S-10691 Stockholm, Sweden

[5] Univ Bristol, Bristol Biogeochem Res Ctr, Dept Earth Sci, Bristol BS8 1RJ, Avon, England

[6] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

[7] British Antarctic Survey, Cambridge CB3 0ET, England

来源：

PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES | 2009年 / 276卷 / 1660期

关键词：

methane; methanogenesis; plant; satellite; TERRESTRIAL PLANTS; FOREST SOILS; ATMOSPHERE; TRANSPORT; ECOSYSTEM; BACTERIA;

D O I：

10.1098/rspb.2008.1731

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

It has been proposed that plants are capable of producing methane by a novel and unidentified biochemical pathway. Emission of methane with an apparently biological origin was recorded from both whole plants and detached leaves. This was the first report of methanogenesis in an aerobic setting, and was estimated to account for 10-45 per cent of the global methane source. Here, we show that plants do not contain a known biochemical pathway to synthesize methane. However, under high UV stress conditions, there may be spontaneous breakdown of plant material, which releases methane. In addition, plants take up and transpire water containing dissolved methane, leading to the observation that methane is released. Together with a new analysis of global methane levels from satellite retrievals, we conclude that plants are not a major source of the global methane production.

引用

页码：1347 / 1354

页数：8

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