No evidence for novel weapons: biochemical recognition modulates early ontogenetic processes in native species and invasive acacias

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F20%3A00532343" target="_blank" >RIV/67985939:_____/20:00532343 - isvavai.cz</a>

Result on the web

<a href="http://hdl.handle.net/11104/0310862" target="_blank" >http://hdl.handle.net/11104/0310862</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10530-019-02110-w" target="_blank" >10.1007/s10530-019-02110-w</a>

Result language

angličtina

Original language name

No evidence for novel weapons: biochemical recognition modulates early ontogenetic processes in native species and invasive acacias

Original language description

The Novel Weapons Hypothesis postulates that the release of allelochemicals by alien plants can inhibit the growth of evolutionary naive native plants. On the other hand, when species share a recent evolutionary history, recognition of phytochemicals from neighboring plants can have adaptive value by providing cues to signal suitable conditions conducive to establishment. This has been termed the Biochemical Recognition Hypothesis. We explored these two hypotheses by conducting germination experiments in South Africa and Spain and a growth experiment in South Africa, using invasive Australian acacias and native species from each region. The experiments exposed seeds of the selected recipient species to leachates collected under acacias, nearby uninvaded vegetation, or distilled water. We then measured total germination, and above and below ground biomass in the growth experiment. Our results did not support the Novel Weapons Hypothesis, but instead we found some leachates collected under acacias and uninvaded areas to stimulate the germination and early growth of some of our selected acacias and native species. Such effects occurred both at the intra- and interspecific level. In general, interspecific stimulatory effects between invasive acacias occurred irrespective of whether they had overlapping native ranges in Australia. We also found leachates from uninvaded areas in South Africa to have stimulatory effects on one invasive acacia and one native species. Hence, our results support the Biochemical Recognition Hypothesis, suggesting that chemically-induced signals may facilitate acacia establishment in sites that have already been transformed by acacias.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10618 - Ecology

Project

<a href="/en/project/GX19-28807X" target="_blank" >GX19-28807X: Macroecology of plant invasions: global synthesis across habitats (SynHab)</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Biological Invasions

ISSN

1387-3547

e-ISSN

—

Volume of the periodical

22

Issue of the periodical within the volume

2

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

14

Pages from-to

549-562

UT code for WoS article

000489928900003

EID of the result in the Scopus database

2-s2.0-85074465849