Technical note: Manipulating interactions between plant stress responses and soil methane oxidation rates
| Autor: | X. Zhou, C.-Y. Xu, S. H. Bai, Z. Xu, S. J. Smaill, P. W. Clinton, C. Chen |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Biogeosciences, Vol 15, Pp 4125-4129 (2018) |
| Druh dokumentu: | article |
| ISSN: | 1726-4170 1726-4189 |
| DOI: | 10.5194/bg-15-4125-2018 |
| Popis: | It has recently been hypothesised that ethylene, released into soil by stressed plants, reduces the oxidation of methane by methanotroph. To test this, a field trial was established in which maize plants were grown with and without soil moisture stress, and the effects of addition aminoethoxyvinylglycine (AVG; an ethylene biosynthesis inhibitor) and biochar (increases soil water holding capacity and reduces plant stress) were determined following the static incubation of soil samples. AVG increased methane oxidation rates by 50 % (P = 0.039), but only in the absence of irrigation. No other treatment effects were observed. This result provides evidence for a positive feedback system between plant stress, ethylene production, and impacts on methanotrophic activity. |
| Databáze: | Directory of Open Access Journals |
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