Allelopathic Effects of Plant-Derived Aerosol Smoke on Seed Germination of <i>Arabidopsis thaliana</i> (L.) Heynh.

Pennacchio, Marcello; Jefferson, Lara V.; Havens, Kayri

doi:https://doi.org/10.1155/2007/65083

International Journal of Ecology

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Research Letter | Open Access

Volume 2007 | Article ID 065083 | https://doi.org/10.1155/2007/65083

Allelopathic Effects of Plant-Derived Aerosol Smoke on Seed Germination of Arabidopsis thaliana (L.) Heynh.

Marcello Pennacchio,¹Lara V. Jefferson,¹and Kayri Havens¹

Academic Editor: Shibu Jose

Received08 Aug 2007

Accepted18 Oct 2007

Published06 Dec 2007

Abstract

The role that plant-derived smoke plays in promoting seed germination is well documented, but little is known about its ability to inhibit seed germination. To better understand this phenomenon, we tested the effects of eight aerosol smoke treatments on the Columbia-3 ecotype of nondormant Arabidopsis thaliana (L.) Heynh. seeds. Our results revealed that aerosol smoke significantly inhibits germination when seeds were exposed to prolonged periods of aerosol smoke. Short durations of smoke treatments significantly promoted the rate of germination of A. thaliana seed. We briefly discuss this dual regulation of smoke and its possible impact on conservation and restoration practices. We also propose that plant-derived smoke may be another vehicle by which allelochemicals can be introduced into the environment.

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Copyright

Copyright © 2007 Marcello Pennacchio et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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