Allelopathic activity of <i>Acer negundo</i> L. leaf litter as a vector of invasion species into plant communities

Nikolaeva, Anastasia A.; Golosova, E.V.; Shelepova, Olga

doi:10.1051/bioconf/20213800088

Cited by 4 publications

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“…It was observed that the native species with the greatest phenol content were the ones with the greatest allelopathic potential; however, in the non-native species, this only applied to the effect of A. dealbata on root size. It is important to mention that the phytotoxicity of A. negundo quantified in previous studies [ 61 ] depends on the extract concentration, with the negative effect on germination and root size disappearing at lower concentrations. In our study, this behaviour was observed on germination, but not on root size.…”

Section: Discussionmentioning

confidence: 99%

“…In the Iberian Peninsula, as in other parts of the world, it has become an invasive [ 60 ] or potentially invasive species [ 51 ]. Other studies have shown its negative effect on the germination and growth of other species, thus regarding allelopathy as a possible mechanism of its invasive capacity [ 60 , 61 ]. The third species selected was Salix babylonica .…”

Section: Introductionmentioning

confidence: 99%

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Comparison of the Allelopathic Potential of Non-Native and Native Species of Mediterranean Ecosystems

Chaves

Felix

Gallego

2023

Plants

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Allelopathy is a frequent interaction between species in Mediterranean ecosystems and it is also one of the proposed strategies to explain the colonisation of invasive species. To confirm the importance of allelopathic potential as a mechanism of invasion of non-native species in Mediterranean ecosystems, it would be advisable to compare the allelopathic effects of non-native plants with native plants on the same target species and thus avoid overestimating the role of phytotoxicity in the invasion process. The main objective of this work was to compare the allelopathic activity of native species typical of Mediterranean ecosystems, classified as allelopathic, with the allelopathic activity of non-native species that may have an invasive character in these ecosystems. To this end, we selected three native species (Cistus ladanifer, Pistacia lentiscus, and Pistacia terebithus) and three non-native species (Acacia dealbata, Acer negundo, and Salix babylonica), and we analysed their effect on the species Lactuca sativa and the native species Lavandula stoechas and Echium plantagineum. The tests on L. sativa showed that all species have allelopathic activity. The tests on L. stoechas and E. plantagineum revealed that P. terebinthus exerted the greatest effect, being the only species that maintained an inhibitory effect at extract concentrations of 50% and 25% in all the analysed parameters, except in germination and cotyledon emergence for E. plantagineum. There were no significant differences in the effect on germination between non-native and native species, although significant differences were found in the effect on root size in the three analysed concentrations, with the native species producing greater inhibition. In conclusion, these species exert a negative effect on the selected native target species, but the negative effect of the native species is greater than that of the non-native species. These results indicate that it is important to compare the allelopathic effects of invasive and native species to correctly estimate the phytotoxic effect of invasive species on their invasiveness

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of the Allelopathic Potential of Non-Native and Native Species of Mediterranean Ecosystems

Chaves

Felix

Gallego

2023

Plants

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“…Seed germination is the most important phase of the plant life cycle and is inhibited or delayed by allelochemicals [ 20 ]. In other studies, phytotoxic effects have been found to reduce the speed of seed germination [ 6 , 21 , 22 ]. It has been shown that the inhibition of seed germination is stronger in dicotyledonous plants than in cereals.…”

Section: Discussionmentioning

confidence: 99%

Leaf Extracts of Invasive Woody Species Demonstrate Allelopathic Effects on the Growth of a Lawn Grass Mixture

Shelepova,

Tkacheva,

Ivanovskii

et al. 2023

Plants

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Biochemical composition was studied in the leaf litter of alien woody species included in the 100 most aggressive invasive species of Europe: Ailanthus altissima, Quercus rubra, Acer negundo, Robinia pseudoacacia, and Elaeagnus angustifolia. Using GC-MS, we detected 187 metabolites in the leaf litter, which are phenolic acids and their derivatives, carbohydrates and their derivatives, polyphenolic compounds, cyclic esters, glycosides, and amino acids and their derivatives. Species-specific metabolites were identified for each species. The main allelochemicals in the leaf litter extract of Q. rubra are determined mainly by the relative abundance of phenolic and fatty acids and their esters, whereas those in the leaf litter extract of R. pseudoacacia are determined by carbohydrates and their derivatives and ester of fatty acid, and those in the leaf litter extract of A. altissima are determined by glycosides. Profiles of macro- and microelements were characterized. It was found that aqueous extracts of leaf litter from all the invasive woody plants under study have a negative effect on the seed germination and initial growth of Vicia cracca and Avena strigosa used for the reclamation of disturbed urban and industrial lands. At the same time, V. cracca is potentially more sensitive.

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“…Allelochemicals can be released into the environment through various ways, such as volatilization, rain and fog leaching, root secretion, and decomposition of plant residues or litters (Hickman et al, 2021;Nikolaeva et al, 2021). After the allelochemicals enter the environment, they interact with the environment through retention, transformation, and migration, eventually leading to the increase or decrease of allelopathy (Xiao et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

The competitive strategies of poisonous weeds Elsholtzia densa Benth. on the Qinghai Tibet Plateau: Allelopathy and improving soil environment

Zhou

Xiao

et al. 2023

Front. Plant Sci.

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IntroductionThe competitive strategies of plants play a crucial role in their growth. Allelopathy is one of the weapons that plants use to improve their competitive advantage.MethodsIn order to explore the competitive strategy of a poisonous weed Elsholtzia densa Benth. (E. densa) on the Qinghai-Tibet Plateau (QTP), the effects of decomposing substances of E. densa on growth, root border cells (RBCs) characteristics of highland crop highland barley (Hordeum vulgare L.), and soil environment were determined.ResultsThe decomposing allelopathic effect of E. densa on the germination and seedling growth of highland barley mainly occurred in the early stage of decomposing. The allelopathic effects were mainly on seed germination and root growth of highland barley. After treatment with its decomposing solution, the RBC’s mucilage layer of highland barley thickened, and the RBC’s activity decreased or even apoptosis compared with the control. However, only the above-ground part of the treatment group showed a significant difference. The effects of E. densa decomposed substances on the soil environment were evaluated from soil physicochemical properties and bacterial community. The results showed that soil bacteria varied greatly in the early stage of decomposion under different concentrations of E. densa. In addition, E. densa decomposing substances increased the soil nutrient content, extracellular enzyme activities, and bacterial community diversity. In the process of decomposition, the bacterial community structure changed constantly, but Actinobacteriota was always the dominant phylum.DiscussionThese results indicated that E. densa might adopt the following two strategies to help it gain an advantage in the competition: 1. Release allelochemicals that interfere with the defense function of surrounding plants and directly inhibit the growth and development of surrounding plants. 2. By changing the physical and chemical properties of soil and extracellular enzyme activity, residual plant decomposition can stimulate soil microbial activity, improve soil nutrition status, and create a more suitable soil environment for growth.

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Allelopathic activity of Acer negundo L. leaf litter as a vector of invasion species into plant communities

Cited by 4 publications

References 4 publications

Comparison of the Allelopathic Potential of Non-Native and Native Species of Mediterranean Ecosystems

Comparison of the Allelopathic Potential of Non-Native and Native Species of Mediterranean Ecosystems

Leaf Extracts of Invasive Woody Species Demonstrate Allelopathic Effects on the Growth of a Lawn Grass Mixture

The competitive strategies of poisonous weeds Elsholtzia densa Benth. on the Qinghai Tibet Plateau: Allelopathy and improving soil environment

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