Am. J. Bot. Join the BSA
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via ISI Web of Science (29)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Prati, D.
Right arrow Articles by Bossdorf, O.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Prati, D.
Right arrow Articles by Bossdorf, O.
Agricola
Right arrow Articles by Prati, D.
Right arrow Articles by Bossdorf, O.
(American Journal of Botany. 2004;91:285-288.)
© 2004 Botanical Society of America, Inc.

Brief Communications

Allelopathic inhibition of germination by Alliaria petiolata (Brassicaceae)1

Daniel Prati2,4 and Oliver Bossdorf2,3

2UFZ-Centre for Environmental Research Leipzig-Halle, Ltd., Department of Community Ecology, Theodor-Lieser-Strasse 4, D-06120 Halle (Saale), Germany; 3Institut für Umweltwissenschaften, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland

Garlic mustard (Alliaria petiolata, Brassicaceae) is an invasive, nonindigenous species currently invading the understory of North American woodlands where it is a serious threat to the native flora. Part of this success might be due to allelopathic interference by garlic mustard. Two congeneric species, the European Geum urbanum and the North American Geum laciniatum, were tested for allelopathic inhibition of germination by garlic mustard. Seeds were germinated either on substrate contaminated by garlic mustard or on substrate with contamination neutralized by activated carbon. Allelopathic effects of native European and invasive North American garlic mustard populations were also compared. Activated carbon increased germination by 14%, indicating that garlic mustard contaminated the substrate through root exudates. Activated carbon in turn counteracted this effect. The two test species differed in their sensitivity to allelopathic interference. North American G. laciniatum had a much stronger increase in germination when activated carbon was added to the substrate, independent of the origin of garlic mustard. In contrast, the European G. urbanum germinated better in substrate precultivated with North American garlic mustard, whereas activated carbon increased its germination only in substrate precultivated with European garlic mustard.

Key Words: allelopathy • biological invasion • competition • garlic mustard • Geum laciniatum • Geum urbanum




This article has been cited by other articles:


Home page
 Am. J. Bot.Home page
M. G. Park and B. Blossey
Importance of plant traits and herbivory for invasiveness of Phragmites australis (Poaceae)
Am. J. Botany, December 1, 2008; 95(12): 1557 - 1568.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
S. M. Enright and D. Cipollini
Infection by powdery mildew Erysiphe cruciferarum (Erysiphaceae) strongly affects growth and fitness of Alliaria petiolata (Brassicaceae)
Am. J. Botany, November 1, 2007; 94(11): 1813 - 1820.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2004 by the Botanical Society of America, Inc.