[MAIPC] Allelopathy

[Jil Swearingen]

Marc,

Very interesting information! I am not sure why your gmail is not being
accepted by MAIPC. That's for someone else!

Thank you,

Jil

On Sun, Nov 28, 2021 at 11:36 AM <wildmarcimlay at gmail.com> wrote:

> Hi Jill,
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> Could you share this on MAIPC and MD invasives. It does not accept my new
> gmail account which I use when my RCN account falsely rejects because of
> “spam” error.
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> Marc
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> *From:* Marc Imlay <ialm at erols.com>
> *Sent:* Sunday, November 28, 2021 9:00 AM
> *To:* 'aliens-l at list.auckland.ac.nz' <aliens-l at list.auckland.ac.nz>
> *Cc:* 'INVASIVES at LISTSERV.UMD.EDU' <INVASIVES at LISTSERV.UMD.EDU>
> *Subject:* Allelopathy
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> Potential biological control research direction
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> Invasive species utilize a wide array of trait strategies to establish in
> novel ecosystems. Among these traits is the capacity to produce
> allelopathic compounds that can directly inhibit neighboring native plants
> or indirectly suppress native plants via disruption of beneficial
> belowground microbial mutualisms, or altered soil resources. Despite the
> well-known prevalence of allelopathy among plant taxa, the pervasiveness of
> allelopathy among invasive plants is unknown. Here we demonstrate that the
> majority of the 524 invasive plant species in our database produce
> allelochemicals with the potential to negatively affect native plant
> performance. Moreover, allelopathy is widespread across the plant
> phylogeny, suggesting that allelopathy could have a large impact on native
> species across the globe. Allelopathic impacts of invasive species are
> often thought to be present in only a few plant clades (e.g.,
> Brassicaceae). Yet our analysis shows that allelopathy is present in 72% of
> the 113 plant families surveyed, suggesting that this ubiquitous mechanism
> of invasion deserves more attention as invasion rates increase across the
> globe.
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> *Discussion and conclusion*
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> Invasive species are among the greatest threats to native plant
> biodiversity (Gaertner et al. 2009
> <https://link.springer.com/article/10.1007/s10530-020-02383-6#ref-CR8>;
> Powell et al. 2011
> <https://link.springer.com/article/10.1007/s10530-020-02383-6#ref-CR19>;
> Vilà et al. 2011
> <https://link.springer.com/article/10.1007/s10530-020-02383-6#ref-CR25>)
> and the prevalence of invasive plants is increasing (MEA 2005
> <https://link.springer.com/article/10.1007/s10530-020-02383-6#ref-CR15>).
> Despite this threat to native biodiversity, the mechanisms underlying
> invasion are still not well resolved. Here we demonstrate that allelopathy
> is a common invasion mechanism across the plant phylogeny, present in every
> lineage examined. Given that not all invasive plants in our database have
> been tested, it is likely that allelopathy in invasive species is even
> greater than we report here. While model allelopathic invasive plants
> (e.g., *Alliaria petiolata* (garlic mustard); *Fallopia japonica*
> (Japanese knotweed)) have received the bulk of study and notoriety in
> invasion literature, our analysis suggests allelopathy is a widespread
> mechanism of invasion success. Future research aimed at demonstrating the
> prevalence of direct (e.g., plant-plant inhibition) versus indirect
> pathways (e.g., inhabitation of native plant-microbial interactions) of
> allelopathy is necessary to mediate the detrimental effects of invasion in
> native ecosystems. Published: 03 November 2020
> <https://link.springer.com/article/10.1007/s10530-020-02383-6#article-info> *Biological
> Invasions* <https://link.springer.com/journal/10530> *volume 23*, pages
> 367–371
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