Relative allelopathic potential of invasive plant species in a young disturbed woodland<sup>1</sup>

Pisula, Nikki L.; Meiners, Scott J.

doi:10.3159/09-ra-040.1

Cited by 78 publications

(61 citation statements)

References 43 publications

(52 reference statements)

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“…Furthermore, results were subjected to linear regression analysis and the correlation coefficient values, evaluating the dependence of each measured variables on the concentration of the extracts, were calculated using Microsoft Excel 2010 according to Singh et al (2002). Coefficient values from regressions were also used to compare the relative strength of plant extracts on measured parameters (Pisula & Meiners 2010). ANOVA table of regression analysis gives the F statistic for testing the claim of whether a significant relationship exists.…”

Section: Discussionmentioning

confidence: 99%

“…Many studies have been conducted to identify the mechanisms of plant invasiveness such as life history characteristics, physiological properties, changes in genetics, resource competition, and in more recent years allelopathy (Pisula & Meiners 2010). Allelopathic potential is an important attribute to the success of an invasive species in natural ecosystems, particularly when the species produces novel biochemical weapons (Callaway & Ridenour 2004).…”

Section: Introductionmentioning

confidence: 99%

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Phytotoxicity induced by Phragmites australis: an assessment of phenotypic and physiological parameters involved in germination process and growth of receptor plant

Uddin

Robinson

Caridi

2013

Journal of Plant Interactions

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This study investigated the possible phytotoxicity induced by Phargmites australis on phenotypic and physiological parameters of recipient plants with identification of major inhibitors in the donor plant. This was achieved using aqueous extracts of different organs and root exudates of P. australis in laboratory and greenhouse experiments with Lactuca sativa as the model test plant. The observed reduced liquid imbibition and altered resource mobilization in seeds of L. sativa, in particular an insufficient carbohydrate supply, demonstrated that the onset of germination might be negatively affected by phytotoxicity. Dose-response studies pointed out that oxidative stress through reactive oxygen species production could potentially cause the observed germination and seedling growth reductions. The osmotic effects by mannitol solution on germination as well as growth and physiology at a level of (0.57 and (0.45 bar, respectively, demonstrated that the results from aqueous plant extracts were partially induced by the osmotic potential on and above those levels. Overall, the relative strength of inhibition on measured parameters was the highest in leaf extract, followed by rhizome, root, stem, and inflorescence. Root exudates of P. australis also had negative impacts by reducing germination and growth of plant. High-performance liquid chromatography (HPLC) analysis revealed gallic acid, a potent phytotoxin, as a major compound with an order of leaf ! inflorescence ! rhizome !root ! stem.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phytotoxicity induced by Phragmites australis: an assessment of phenotypic and physiological parameters involved in germination process and growth of receptor plant

Uddin

Robinson

Caridi

2013

Journal of Plant Interactions

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“…We can assume that the allelopathic components are watersoluble and diffusible from intact plant tissue. These allelopathic components may generally accumulate in the field soil to a physiologically active level and also probably be lost gradually from the soil through degradation or binding with other chemical compounds (Inderjit & Weston, 2000;Pisula & Meiners, 2010). Inderjit & Duke (2003) stated that plants release phytochemicals from plant tissues, and their incorporation to the soil could be accelerated by leaching thus facilitating their harmful effects in the field.…”

Section: Discussionmentioning

confidence: 99%

“…It is known to play an important role in affecting the community structure, including plant dominance and succession (Lambers et al, 1998). Recently, numerous studies have demonstrated the allelopathic effects of invasive plants on native species in the invaded ranges and provided compelling evidence for allelopathy as an important component of the competitive success of some invaders (Bais et al, 2003;Hierro & Gallaway, 2003;Prati & Bossdorf, 2004;Dorning & Cipollini, 2006;Cipollini et al, 2008;Inderjit et al, 2008;Thorpe et al, 2009;Chapla & Campos, 2010;Pisula & Meiners, 2010). Although the noxious C. canadensis poses a very serious threat to the diversity or abundance of native plant species and agricultural productivity in China, the mechanisms of the invasion of C. canadensis are still poorly understood.…”

Section: Introductionmentioning

confidence: 99%

Aqueous tissue extracts of Conyza canadensis inhibit the germination and shoot growth of three native herbs with no autotoxic effects

Hu¹,

Zhang²

2013

Planta daninha

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-Conyza canadensis is a widespread weed species forming dense populations in most regions of China. Petri dish bioassays with aqueous extracts of the aboveground parts and roots of C. canadensis at three concentrations (0.05, 0.1, and 0.2 g mL -1) were undertaken to investigate the autotoxic effects of C. canadensis, and the possible effects on three dominant native weed species, Plantago asiatica, Digitaria sanguinalis and Youngia japonica. The results showed that seed germination and the shoot length of three native species were significantly inhibited by aqueous extracts of C. canadensis at almost all concentrations that generally increased with increasing extract concentration. However, the seed germination and shoot length of C. canadensis itself was not significantly affected by the same extracts at all concentrations. These results suggested that the potential allelopathic compounds produced by the tissue of C. canadensis may contribute to its invasive success in invading southern China.Keywords: invasive alien weed, allelopathy, petri dish bioassay. Palavras-chave: planta daninha invasiva alienígena, alelopatia, bioensaio em placa de Petri. RESUMO -

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“…C. orbiculatus has been correlated with an increase in liana richness (Leicht-Young et al, 2007). Cirsium arvense (Canada thistle), Rhamnus davurica (Dahurian buckthorn), C. orbiculatus and A. altissima have allelopathic compounds that chemically deter the growth of other species (Burda and Oleszek, 2004;Grekul and Bork, 2004;Knight et al, 2007;Landenberger et al, 2007;Mastelic and Jerkovic, 2002;Pisula and Meiners, 2010;Tsahar et al, 2002).…”

Section: Ecosystem and Community Propertiesmentioning

confidence: 99%

Assessing the Role of Invasive Species in Successional Plant Communities Using Hyperspectral Remote Sensing

Aneece¹

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I AbstractBiodiversity has been correlated with ecosystem stability and function. Invasive species can decrease biodiversity and cause ecological and economical damage. These species are especially prevalent in abandoned agricultural fields, and can disrupt secondary successional dynamics. Although field surveys are used to assess the impacts of these species, remote sensing can be more efficient, especially at large spatial extents. I examined the ability to use ground-level hyperspectral remote sensing to study invasive species and their effects on community properties at the Blandy Experimental Farm (BEF) in north-central Virginia. Their effects on ecosystem properties could not be assessed using ground-level remote sensing in this system; thus, I used leaf and soil measurements to assess their effects on secondary succession.I found that remote sensing can be used to differentiate among plant communities.The most influential species to community discriminability are considered invasive, suggesting that these species can strongly influence species compositions and other community properties. The most influential wavelengths for discrimination were distributed throughout the spectral profile and corresponded with plant physiological and structural elements.Thus, spectral differences across species were large enough to be used in aggregate to differentiate plant communities. Additionally, these differences were large enough to differentiate individual species, but discriminability varied by species. The two thistle species that are similar phylogenetically and structurally were readily distinguished amongst each other. However, the shrubby buckthorn was difficult to distinguish from the oriental bittersweet vine despite phylogenetic distance and differences in structure. This was likely due to physical overlap in the field and thus the difficulty in obtaining pure signatures for discrimination. Discriminability also differed by the spectral region examined. Buckthorn and oriental bittersweet were least discriminable in the 550-599 nm and 650-699 nm regions, due 2 to greater intraspecific variability of spectral data in these regions.Additionally, remote sensing can be used to estimate higher order community properties like species diversity, and thus assess the effects of invasive species on plant diversity.However, correlations between species diversity and spectral diversity varied by the spectral transformation technique used and the spectral region examined. There was a strong positive correlation between the two in the visible region when band depth was used and in the near-infrared region when first derivatives were used. There were no strong correlations in the red edge, due to high intraspecific variability in chlorophyll content.Lastly, I assessed the effects of these exotic invasive species on ecosystem properties, specifically secondary succession, using leaf and soil data. Differences in soil characteristics were larger across fields and stages than across species. However, there were species-level ...

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Relative allelopathic potential of invasive plant species in a young disturbed woodland¹

Cited by 78 publications

References 43 publications

Phytotoxicity induced by Phragmites australis: an assessment of phenotypic and physiological parameters involved in germination process and growth of receptor plant

Phytotoxicity induced by Phragmites australis: an assessment of phenotypic and physiological parameters involved in germination process and growth of receptor plant

Aqueous tissue extracts of Conyza canadensis inhibit the germination and shoot growth of three native herbs with no autotoxic effects

Assessing the Role of Invasive Species in Successional Plant Communities Using Hyperspectral Remote Sensing

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Relative allelopathic potential of invasive plant species in a young disturbed woodland1

Cited by 78 publications

References 43 publications

Phytotoxicity induced by Phragmites australis: an assessment of phenotypic and physiological parameters involved in germination process and growth of receptor plant

Phytotoxicity induced by Phragmites australis: an assessment of phenotypic and physiological parameters involved in germination process and growth of receptor plant

Aqueous tissue extracts of Conyza canadensis inhibit the germination and shoot growth of three native herbs with no autotoxic effects

Assessing the Role of Invasive Species in Successional Plant Communities Using Hyperspectral Remote Sensing

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Relative allelopathic potential of invasive plant species in a young disturbed woodland¹