The relative importance of immediate allelopathy and allelopathic legacy in invasive plant species

Fabbro, Corina Del; Prati, Daniel

doi:10.1016/j.baae.2014.10.007

Cited by 40 publications

(25 citation statements)

References 32 publications

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“…Later studies called for caution in the interpretation of the results of these studies because of potential side effects of activated carbon on soil properties, microbes and plant growth (e.g. Abhilasha et al 2008;Lau et al 2008;Weißhuhn and Prati 2009;Kabouw et al 2010;Wurst and Van Beersum 2009;Wurst et al 2010;Kulmatiski 2011;Del Fabbro and Prati 2015;Nolan et al 2015). For example, Kabouw et al (2010) showed that despite the fact that activated carbon adsorbed glucosinolates very well-indicating the suitability of activated carbon for removing potentially allelopathic compounds it also changed the soil pH and had varying effects on germination of different plant species.…”

Section: Discussionmentioning

confidence: 99%

Allelopathy of a native grassland community as a potential mechanism of resistance against invasion by introduced plants

Lei

Kleunen

2016

Biol Invasions

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Successful plant invasions depend, at least partly, on interactions between introduced plants and native plant communities. While allelopathic effects of introduced invaders on native resident species have received much attention, the reverse, i.e. allelopathic effects of native residents on introduced plants, have been largely neglected. Therefore, we tested whether allelopathy of native plant communities decreases their invasibility to introduced plant species. In addition, we tested among the introduced species whether the invasive ones are more tolerant to allelopathy of native plant communities than the non-invasive ones. To test these hypotheses, we grew nine pairs of related (congeneric or confamilial) invasive and non-invasive introduced plant species (i.e. 18 species) in the presence or absence of a native grassland community, which consisted of three common forbs and three common grasses, with or without activated carbon in the soil. Activated carbon reduced the survival percentage and growth of introduced plants in the absence of the native plant community. However, its net effect on the introduced plants was neutral or even slightly positive in the presence of the native community. This might suggest that the native plant community imposed allelopathic effects on the introduced plants, and that these effects were neutralized or reduced by activated carbon. The invasive and non-invasive introduced plants, however, did not differ in their tolerance to such allelopathic effects of the native plant community. Thus, although allelopathy of native plant communities might increase their resistance against introduced plants, there was no evidence that tolerance to allelopathy of native plant communities contributes to the degree of invasiveness of introduced plants.

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Section: Discussionmentioning

confidence: 99%

Allelopathy of a native grassland community as a potential mechanism of resistance against invasion by introduced plants

Lei

Kleunen

2016

Biol Invasions

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“…; Kaur et al . ; Del Fabbro & Prati ). However, if microbes cannot metabolize novel chemicals, there is a possibility that the chemicals could accumulate to toxic levels (Inderjit & van der Putten ).…”

Section: Nutrient Enrichment Legaciesmentioning

confidence: 99%

“…There is speculation about the fate of allelochemicals released into the soil and the extent to which they persist in the soil after removal of the invaders that produced them (Wardle et al 1998;Inderjit & Callaway 2003). Free-living soil microorganisms can transform these chemicals into less toxic forms (Inderjit & van der Putten 2010) and are thus likely to be undetected (Inderjit et al 2008;Kaur et al 2009;Del Fabbro & Prati 2015). However, if microbes cannot metabolize novel chemicals, there is a possibility that the chemicals could accumulate to toxic levels (Inderjit & van der Putten 2010).…”

Section: A L L E L O P a T H Y L E G A C I E Smentioning

confidence: 99%

Mycorrhizae, invasions, and the temporal dynamics of mutualism disruption

et al. 2017

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Summary An increasingly recognized impact of plant invaders is the disruption of positive interactions between native plants and their belowground mutualistic mycorrhizal fungi. We reviewed 112 studies from 61 publications that report invader impacts on mycorrhizal fungi. We describe emerging patterns on the frequency of negative, neutral and positive invader effects on mycorrhizal fungal abundance, richness and community composition, and we evaluate how these outcomes vary with invasion age. We also describe the evidence for three mechanisms of disruption: (1) plant‐plant competition that alters host quantity or quality (2) changes in soil properties such as nutrient availability and (3) allelopathy. Invaders can disrupt native mutualisms if they are non‐mycorrhizal, associate with a different type of mycorrhiza, or associate with different taxa of the same type of mycorrhiza as the native plants. Invaders that enrich soil nutrients can cause declines in mycorrhizal abundance, shifts in fungal community composition, and cause native plants to reduce their dependence on mycorrhizas. Invaders that produce allelopathic compounds cause mycorrhizal abundance to decrease and alter community composition because of variation in the sensitivity of different fungi to toxins. While the evidence for disruption of the mycorrhizal mutualism with invasion is strong, temporal patterns have not yet emerged from the literature. Invasion age was not clearly associated with extent of disruption, and the timing of recovery following invader removal was highly variable. Differences in the biology of native and invasive plants, their interactions with mycorrhizal fungi and the surrounding landscape contributed to this variation. Synthesis. Our systematic review suggests that invaders frequently decrease mycorrhizal abundance and alter fungal community composition while only occasionally affecting fungal species richness. The development of invader impacts, as well as the restoration of native communities after invader removal, are influenced by a suite of plant, fungal and environmental traits that change over time. However, few studies have examined the temporal dynamics of mycorrhizal disruption, and results are variable. Future research should focus on the temporal scale of mutualism disruption while considering plant phylogenetics and demography, fungal functional traits such as spore longevity and dispersal, and soil chemistry.

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“…Some studies have indicated that there may be potential side effects related to soil properties, microbes and plant growth when using activated carbon to adsorb allelochemicals in the soil [70,71]. Despite this concern, activated carbon, due to its effectiveness in absorption of allelochemicals, is still utilized by many researchers to neutralize allelochemicals in order to study the allelopathy of plants [21,36,37,39,72]. Additionally, caution should be exercised when using laboratory bioassays to simulate a complex field environment [66,73].…”

Section: The Effects Of Allelopathy On Plant Growthmentioning

confidence: 99%

The Effects of Soils from Different Forest Types on the Growth of the Invasive Plant Phytolacca americana

Chen

Hou

Zhuge

et al. 2019

Forests

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Due to increasing globalization and human disturbance, plant invasion has become a worldwide concern. Soil characteristics associated with the vegetation of recipient communities affect plant invasion success to a great extent. However, the relative importance of soil biotic and abiotic factors of different recipient communities in resisting plant invasion is not fully understood. We hypothesized that natural forest soils can better resist plant invasion than can plantation soils, that the allelopathic legacy of resident trees in soil plays a role in resisting invasive plants, and that late-successional soils have a strong effect. We examined the effects of soil and litter collected from four natural forests at successional stages and one Robinia pseudoacacia Linn. plantation in eastern China on the growth of Phytolacca americana L., which is a highly invasive species across China, and explored the individual effects of soil nutrients, allelochemicals, and soil microbes. We found that allelopathic activity of natural forest soils can effectively resist P. americana invasion, and that low level of nutrients, especially of phosphorus, in the soils might be potential limiting factors for the plant growth. The profound conditioning of soil resources by exotic R. pseudoacacia based on tree traits (including allelopathy) facilitated further P. americana invasion. Allelochemicals from forest litter inhibited the germination of P. americana seeds, but pH played a major role in P. americana growth when these substances entered the soil. However, we have no evidence that late-successional forest soils exhibit strong allelopathy toward P. americana. The present study will help to further our understanding of the mechanism of community resistance to invasion.

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The relative importance of immediate allelopathy and allelopathic legacy in invasive plant species

Cited by 40 publications

References 32 publications

Allelopathy of a native grassland community as a potential mechanism of resistance against invasion by introduced plants

Allelopathy of a native grassland community as a potential mechanism of resistance against invasion by introduced plants

Mycorrhizae, invasions, and the temporal dynamics of mutualism disruption

The Effects of Soils from Different Forest Types on the Growth of the Invasive Plant Phytolacca americana

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