The enhanced functional traits contribute to the successful invasion of Amaranthus palmeri in salinity environments: a comparison with its congeners

Wang, Tongtong; Han, Jianhua; Fang, Hong-Wen; Khan, Amir; Tang, Lili; Zhang, Mei

doi:10.1007/s11756-021-00767-0

Cited by 4 publications

(6 citation statements)

References 69 publications

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“…Therefore, it can hinder broadleaf species from capturing light resources, forming a shadowing effect and thus inhibiting the growth and regeneration of broadleaf species. Bamboo species also exhibited higher leaf N and P concentrations, photosynthetic, and respiration rates than broadleaf species, similar to what has been documented for most invasive species ( Heberling and Mason, 2018 ; Mathakutha et al., 2019 ; Díaz de León Guerrero et al., 2020 ; Palma et al., 2021 ; Wang et al., 2021 ; Montesinos, 2022 ). These traits demonstrate elevated leaf nutrient status and photosynthetic potential, supporting their competitive advantage.…”

Section: Discussionsupporting

confidence: 79%

Trait divergence and opposite above- and below-ground strategies facilitate moso bamboo invasion into subtropical evergreen broadleaf forest

Yu,

Le,

Peñuelas

et al. 2024

Front. Plant Sci.

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Understanding the invasion of moso bamboo (Phyllostachys edulis) into adjacent evergreen broadleaf forest based on functional traits is crucial due to its significant influence on ecosystem processes. However, existing research has primarily focused on above- or below-ground traits in isolation, lacking a comprehensive integration of both. In this study, we conducted a trait-based analysis including 23 leaf traits and 11 root traits in three forest types - bamboo forest, mixed bamboo and broadleaf forest, and evergreen broadleaf forest - to investigate trait differences, phenotypic integration, and above- and below-ground resource strategies in bamboo and broadleaf species. Our findings demonstrated significant differences in leaf and root key traits between bamboo and broadleaf species, strongly supporting the “phenotypic divergence hypothesis”. Bamboo exhibited stronger trait correlations compared to broadleaf species, indicating higher phenotypic integration. Above- and below-ground strategies were characterized by trade-offs rather than coordination, resulting in a multi-dimensional trait syndrome. Specifically, a unidimensional leaf economics spectrum revealed that bamboo with higher leaf N concentrations (LNC), P concentrations (LPC), and specific leaf area (SLA) adopted a “fast acquisitive” above-ground strategy, while broadleaf species with thicker leaves employed a “slow conservative” above-ground strategy. A two-dimensional root trait syndrome indicated a “conservation” gradient with bamboo adopting a “slow conservative” below-ground strategy associated with higher root tissue density (RTD), and broadleaf species exhibiting a “fast acquisitive” below-ground strategy linked to higher root N concentrations (RNC) and P concentrations (RPC), and a “collaboration” gradient probably ranging from broadleaf species with a “do-it-yourself” strategy characterized by high specific root length (SRL), to bamboo adopting an “outsourcing” strategy with thicker roots. In conclusion, key trait divergence from coexisting broadleaf species, higher phenotypic integration, and multi-dimensional opposite above- and below-ground resource strategies confer competitive advantages to moso bamboo, shedding light on the mechanistic understanding of its invasion into subtropical evergreen broadleaf forest and providing theoretical guidance for maintaining the stability of subtropical forest ecosystem.

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Section: Discussionsupporting

confidence: 79%

Trait divergence and opposite above- and below-ground strategies facilitate moso bamboo invasion into subtropical evergreen broadleaf forest

Yu,

Le,

Peñuelas

et al. 2024

Front. Plant Sci.

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“…Khangura et al [60] demonstrated a nonlinear relationship between the plant height and chlorophyll levels, so a low ChlF performance would not lead to a shorter A. palmeri height under the relative lower N supply variability. Previous studies also found that A. palmeri could produce much more leaves placed vertically to the ray of the sun than A. tricolor, improving invaders' whole photosynthetic efficiency that's able to grow longer stems [36,61]. Therefore, the ChlF reduction at single leaf levels might have little influence on invaders' growth under the lower N supply variability patterns, but the ChlF and dry matter accumulations of invaders improved notably under the pulsed N input treatment.…”

Section: Discussionmentioning

confidence: 92%

“…This weed thrives in the riverbanks, roadsides, open fields, and farmlands, where the N input is temporal heterogeneous [33][34]. Amaranthus tricolor L. is a domestic plant widely distributed in China, it can co-occur with A. palmeri in the same habitats [35][36]. The present study aimed to (1) analyze the difference in light transport, utilization, and dissipation between two Amaranthus species to the increased N supply variability; (2) determine the impact of N temporal variability on their growth performance and competitive ability; and (3) evaluate the invasion of A. palmeri in divergent N supply environments by combining the ChlF, growth and competition indexes.…”

mentioning

confidence: 99%

Comparative Chlorophyll Fluorescence and Growth Responses of two <i>Amaranthus</i> Species to Increased N Supply Variability

Wang¹,

Xie²,

Feng³

et al. 2022

Pol. J. Environ. Stud.

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Alien plant invasion attracts increasing attention from ecologists [1-2], as it is posing profound negative impacts and challenges on ecosystem balance and human society's healthy development [3][4]. This event is mainly caused by the introduction of exotic species to a new habitat. However, how to exactly predict and control plant invasions always perplexes most researchers [5]. Normally, invasive plants are highly possible to meet their congeners in a novel environment since they have similar ecological niche demands

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“…In recent years, A. palmeri has spread rapidly throughout the Beijing-Tianjin-Hebei region of northern China, displacing native plants and endangering local biodiversity [28]. Previous studies have already indicated that A. palmeri invasion enhanced functional traits (i.e., leaf number, plant height, and total biomass) [29], altered soil chemical and biological properties (e.g., total carbon, ammonium nitrogen, and soil extracellular enzyme activities) [30], and influenced bacterial composition and co-occurrence patterns [31]. It is unknown, nevertheless, how the invasion of A. palmeri would affect the diversity, composition, and ecological network of the soil fungal community.…”

Section: Introductionmentioning

confidence: 99%

Responses of Fungal Assembly and Co-Occurrence Network of Rhizosphere Soil to Amaranthus palmeri Invasion in Northern China

Zhang

Wang

Shi

et al. 2023

JoF

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The interaction between invasive plants and soil microbial communities is critical for plant establishment. However, little is known about the assembly and co-occurrence patterns of fungal communities in the rhizosphere soil of Amaranthus palmeri. The soil fungal communities and co-occurrence networks were investigated in 22 invaded patches and 22 native patches using high-throughput Illumina sequencing. Despite having little effect on alpha diversity, plant invasion significantly altered the composition of the soil fungal community (ANOSIM, p < 0.05). Fungal taxa associated with plant invasion were identified using linear discriminant analysis effect size (LEfSe). In the rhizosphere soil of A. palmeri, Basidiomycota was significantly enriched, while Ascomycota and Glomeromycota were significantly reduced when compared to native plants. At the genus level, the invasion of A. palmeri dramatically increased the abundance of beneficial fungi and potential antagonists such as Dioszegia, Tilletiopsis, Colacogloea, and Chaetomium, while it significantly decreased the abundance of pathogenic fungi such as Alternaria and Phaeosphaeria. Plant invasion reduced the average degree and average path length, and increased the modularity value, resulting in a less complex but more effective and stable network. Our findings improved the knowledge of the soil fungal communities, network co-occurrence patterns, and keystone taxa in A. palmeri-invaded ecosystems.

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The enhanced functional traits contribute to the successful invasion of Amaranthus palmeri in salinity environments: a comparison with its congeners

Cited by 4 publications

References 69 publications

Trait divergence and opposite above- and below-ground strategies facilitate moso bamboo invasion into subtropical evergreen broadleaf forest

Trait divergence and opposite above- and below-ground strategies facilitate moso bamboo invasion into subtropical evergreen broadleaf forest

Comparative Chlorophyll Fluorescence and Growth Responses of two <i>Amaranthus</i> Species to Increased N Supply Variability

Responses of Fungal Assembly and Co-Occurrence Network of Rhizosphere Soil to Amaranthus palmeri Invasion in Northern China

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