Allelopathic potential of Medicago arborea, a Mediterranean invasive shrub

Bousquet-Mélou, Anne; Louis, Sophie; Robles, Christine; Greff, Stéphane; Dupouyet, Sylvie; Fernandez, Catherine

doi:10.1007/s00049-005-0311-y

Cited by 25 publications

(16 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Radicle and hypocotyl elongation were clearly inhibited at a higher concentration of needle extracts, comparable to other studies, such as Carduus nutans on pasture plants in New Zealand (Wardle et al 1991), Artemisia princeps var. orientalis (Kil and Kyeong 1992), Medicago arborea (Bousquet-Melou et al 2005), Pinus halepensis (Alrababah et al 2009). The reduction in growth of radicle and hypocotyl of the target species when treated with aqueous extracts of both concentrations suggests P. pinea's allelopathic potential.…”

Section: Discussionmentioning

confidence: 99%

Effects of Pinus pinea litter on seed germination and seedling performance of three Mediterranean shrub species

2012

View full text Add to dashboard Cite

Pinus pinea L. is a coniferous tree inhabiting the Mediterranean Basin, which appears widely distributed in the Iberian Peninsula, frequently associated to Mediterranean shrub species, such as Cistus salvifolius L., C. libanotis L. and Halimium halimifolium (L.) Willk.(Cistaceae). This study investigated the effects (chemical and physical) of P. pinea needles on the seed germination and early growth of these three shrub species. Laboratory experiments were carried out in order to assess an expected negative effect by using different treatments to seeds (physical layer and two aqueous extracts concentrations). Seed germination of all species was inhibited when treated with aqueous extracts and the degree of inhibition was higher when using the extract with the highest concentration, while no effect was observed with the physical layer treatment. Seedling performance was also sensitive to the different treatments, showing the most stressed values with the high concentration extract. The results from this study highlight the importance of allelopathy of P. pinea needles as a mechanism for controlling seed germination and seedling performance of some Mediterranean shrub species.

show abstract

Section: Discussionmentioning

confidence: 99%

Effects of Pinus pinea litter on seed germination and seedling performance of three Mediterranean shrub species

2012

View full text Add to dashboard Cite

show abstract

“…1). Consequently, changes in community structure from herbaceous to less decomposable invasive woody species, which have been reported for diVerent Mediterranean-type ecosystems worldwide (Di Tomaso 1998;Bousquet-Melou et al 2005) could augment this negative feedback on litter decomposition. Our data also highlight the importance of Family and, to a lesser extent, Leaf type on the litter decomposition rate (Fig.…”

Section: Consequences Of Invasions For Nutrient Cyclingmentioning

confidence: 98%

Leaf litter traits of invasive species slow down decomposition compared to Spanish natives: a broad phylogenetic comparison

et al. 2009

View full text Add to dashboard Cite

Leaf traits related to the performance of invasive alien species can influence nutrient cycling through litter decomposition. However, there is no consensus yet about whether there are consistent differences in functional leaf traits between invasive and native species that also manifest themselves through their "after life" effects on litter decomposition. When addressing this question it is important to avoid confounding effects of other plant traits related to early phylogenetic divergences and to understand the mechanism underlying the observed results to predict which invasive species will exert larger effects on nutrient cycling. We compared initial leaf litter traits, and their effect on decomposability as tested in standardized incubations, in 19 invasive-native pairs of co-familial species from Spain. They included 12 woody and seven herbaceous alien species representative of the Spanish invasive flora. The predictive power of leaf litter decomposition rates followed the order: growth form > family > status (invasive vs. native) > leaf type. Within species pairs litter decomposition tended to be slower and more dependent on N and P in invaders than in natives. This difference was likely driven by the higher lignin content of invader leaves. Although our study has the limitation of not representing the natural conditions from each invaded community, it suggests a potential slowing down of the nutrient cycle at ecosystem scale upon invasion.

show abstract

“…Dilutions were prepared immediately before use. The three concentrations were selected based upon similar studies found in the literature (Bousquet-Mélou et al 2005;El-khatib 1997El-khatib /1998.…”

Section: Extract Preparation Of Mikaniamentioning

confidence: 99%

Differential belowground allelopathic effects of leaf and root of Mikania micrantha

Gao

et al. 2008

Trees

View full text Add to dashboard Cite

This study evaluates the relative contributions of leaves and roots to the belowground allelopathic effects of Mikania micrantha. The hypothesis that leaves contribute more to the allelopathic effect than roots was experimentally tested. We assessed the allelopathic effects of aqueous extracts from Mikania leaves and roots on the seed germination and seedling growth of two co-occurring woody plants in southern China, Lagerstroemia indica L. and Robinia pseudoacacia L. The results showed that the aqueous extracts from Mikania leaves and roots had inhibitory effects on the woody species. Allelopathic activity depended on the concentration of the extracts, target species, and the extract sources (i.e., leaves vs. roots of Mikania). Leaf extract showed stronger allelopathic effects than root extract on germination percentage, initial germination time, speed of germination, and shoot height; while root extract had greater allelopathic effects on roots than leaf extract. The latter phenomenon might greatly promote the invasion success of Mikania due to more direct and effective allelopathy of root. Our results suggest that allelopathy of root extract on belowground biomass might be greater than that of leaf extract for some species in contrast allelopathy of leaf extract on belowground biomass might also be greater than that of root extract for other species, at least for their effects on root growth of the target species.

show abstract

Allelopathic potential of Medicago arborea, a Mediterranean invasive shrub

Cited by 25 publications

References 44 publications

Effects of Pinus pinea litter on seed germination and seedling performance of three Mediterranean shrub species

Effects of Pinus pinea litter on seed germination and seedling performance of three Mediterranean shrub species

Leaf litter traits of invasive species slow down decomposition compared to Spanish natives: a broad phylogenetic comparison

Differential belowground allelopathic effects of leaf and root of Mikania micrantha

Contact Info

Product

Resources

About