Allelopathy and Allelochemicals in Grasslands and Forests

You, Xu; Chen, Xin; Ding, Le; Kong, Chui‐Hua

doi:10.3390/f14030562

Cited by 37 publications

(30 citation statements)

References 180 publications

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“…A variety of plants invade grasslands through allelopathy mechanisms, in which allelochemicals confer a competitive advantage to the invasive plant. 34 Toxic invasive plants can reduce density of the native plant community by decreasing seed germination rate, and reducing access to light, water, and nutrients by inhibiting shoot or root growth in seedlings; this, in turn, affects the distribution pattern and biodiversity of plant populations in the region. 35–37 …”

Section: Discussionmentioning

confidence: 99%

“…The occurrence of allelopathy can be attributed to a particular compound or class of compounds. 34 Allelochemicals are found in large quantities in the secondary metabolites of plants and are mainly categorized into phenols, terpenoids, coumarins, flavonoids, alkaloids, and others. 45 The spotted knapweed , an invasive species in the western U.S. prairies, inhibits the emergence and growth of native ground species through root secretions (catechins).…”

Section: Discussionmentioning

confidence: 99%

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Allelopathy and potential allelochemicals of Ligularia sagitta as an invasive plant

Wang,

Zhang

et al. 2024

Plant Signaling & Behavior

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Allelopathy is the main chemical means in the invasion process of exotic plants and one of the key factors in grassland degradation. In this experiment, we investigated the effects of ethyl acetate phase extract (EAE), n-butanol phase extract (BE) and aqueous phase extract (AE) from the aboveground (stems and leaves) and roots of Ligularia sagitta on seed germination and seedling growth of four Gramineae forages ( Poa pratensis L. Festuca ovina L. Elymus nutans Griseb. Agropyron cristatum (L.) Gaertn.) in their sympatric domains and one Legosuminae forage ( Medicago sativa L.). The chemical components in each phase extract of L. sagitta were determined with UHPLC-MS/MS non-targeted metabolomics, and the differential compounds were screened using Orthogonal Partial Least Squares-Discriminant Analysis (OPLS-DA). Within a set concentration range, EAE significantly inhibited seed germination and seedling growth of four Gramineae forages. BE and AE acted mainly in the seedling growth stage and did not significantly inhibit forage seed germination. P. pratensis was most sensitive to L. sagitta extracts; at 2.0 mg/mL of EAE from roots, germination energy and germination rate of P. pratensis seeds were 0. L. sagitta extracts inhibited the growth of M. sativa seedlings and did not inhibit its seed germination. A total of 904 compounds were identified with UHPLC-MS/MS, among which 31, 64, 81 and 66 metabolites displayed different accumulation patterns in the four comparison groups (R.EAE vs. R.BE, R.EAE vs. R.AE, SL.EAE vs. SL.BE, SL.EAE vs. SL.AE), respectively. In particular, 9 compounds were found to be common up-regulated differential metabolites in the four comparison groups and were enriched in EAE. Additionally, N,N-dimethylaniline, Caffeic acid, 4-Hydroxybenzoic acid, 4-Hydroxybenzaldehyde and cis-9-Octadecenoic acid as potential allelochemicals in L. sagitta . The results of this study support efforts at finding alternative control plants for the restoration of poisonous grass-type degraded grasslands.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Allelopathy and potential allelochemicals of Ligularia sagitta as an invasive plant

Wang,

Zhang

et al. 2024

Plant Signaling & Behavior

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“…Next, root exudates that are produced by C. madagascariensis may affect native plant growth (by releasing allelopathic exudates), and the bioavailability of exchangeable Na and Ca by releasing high content of malic and oxalic acids. Studies by Li et al [41], and Yu et al [42] have provided evidence of IAPS producing novel root exudates for the native AMF community, and these root exudates directly limit AMF richness, and diversity [43]. Consequently, the most beneficial AMF from order Glomerales at the invaded environment were favored, while the abundance of AMF species from order Diversisporales was inhibited as influenced by C. madagascariensis [5].…”

Section: Discussionmentioning

confidence: 99%

Biochemical characterization and mycorrhizal fungal community of plant species in the Brazilian seasonal dry forest

et al. 2023

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Invasive alien plant species (IAPS) have the ability to change the biochemical properties and the arbuscular mycorrhizal fungal (AMF) community structure in their rhizosphere. Organic acids, microbial activity, and AMF play a key role in the invader's spread and also has interactions with the soil chemical factors. Our aim here was to assess the rhizosphere's biochemical factors, AMF community composition, and soil chemical properties associated with Cryptostegia madagascariensis (IAPS) and Mimosa tenuiflora (endemic plant species) from the Brazilian Seasonal Dry Forest. The highest values of total glomalin (5.87 mg g−1 soil), root colonization (54.5%), oxalic and malic acids (84.21 and 3.01 μmol g−1, respectively), microbial biomass C (mg kg−1), Na+ (0.080 cmolc kg−1), Ca2+ (7.04 cmolc kg−1), and soil organic carbon (4.59 g kg−1) were found in the rhizosphere of C. madagascariensis. We found dissimilarities on AMF community structure considering the studied plant species: (i) Racocetra coralloidea, Dentiscutata heterogama, Dentiscutata cerradensis, Gigaspora decipiens, and AMF's richness were highly correlated with the rhizosphere of M. tenuiflora; and (ii). The rhizosphere of C. madagascariensis was highly correlated with the abundance of Claroideoglomus etunicatum, Rhizoglomus aggregatum, Funneliformis mosseae, and Funneliformis geosporum. The results of our study highlight the importance of considering C. madagascariensis as potential hosts for AMF species from Glomerales, and a potential plant species that increase the bioavailability of exchangeable Na and Ca at semi‐arid conditions.

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“…However, allelopathy and allelobiosis are usually studied separately, despite their necessary linkage in nature. There is a wealth of information on plant–plant allelopathic interactions in natural and managed ecosystems [ 17 , 18 , 19 , 20 , 22 ] but a lack of information on the role of allelobiosis in plant–plant interactions; the term allelobiosis is sparsely found in the scientific literature. In particular, most of the allelopathy research has primarily focused on plants and their allelochemical interactions but ignored the plant–plant signaling interactions.…”

Section: Introductionmentioning

confidence: 99%

Chemically Mediated Plant–Plant Interactions: Allelopathy and Allelobiosis

Kong,

Li,

et al. 2024

Plants

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Plant–plant interactions are a central driver for plant coexistence and community assembly. Chemically mediated plant–plant interactions are represented by allelopathy and allelobiosis. Both allelopathy and allelobiosis are achieved through specialized metabolites (allelochemicals or signaling chemicals) produced and released from neighboring plants. Allelopathy exerts mostly negative effects on the establishment and growth of neighboring plants by allelochemicals, while allelobiosis provides plant neighbor detection and identity recognition mediated by signaling chemicals. Therefore, plants can chemically affect the performance of neighboring plants through the allelopathy and allelobiosis that frequently occur in plant–plant intra-specific and inter-specific interactions. Allelopathy and allelobiosis are two probably inseparable processes that occur together in plant–plant chemical interactions. Here, we comprehensively review allelopathy and allelobiosis in plant–plant interactions, including allelopathy and allelochemicals and their application for sustainable agriculture and forestry, allelobiosis and plant identity recognition, chemically mediated root–soil interactions and plant–soil feedback, and biosynthesis and the molecular mechanisms of allelochemicals and signaling chemicals. Altogether, these efforts provide the recent advancements in the wide field of allelopathy and allelobiosis, and new insights into the chemically mediated plant–plant interactions.

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Allelopathy and Allelochemicals in Grasslands and Forests

Cited by 37 publications

References 180 publications

Allelopathy and potential allelochemicals of Ligularia sagitta as an invasive plant

Allelopathy and potential allelochemicals of Ligularia sagitta as an invasive plant

Biochemical characterization and mycorrhizal fungal community of plant species in the Brazilian seasonal dry forest

Chemically Mediated Plant–Plant Interactions: Allelopathy and Allelobiosis

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