Climatic suitability and compatibility of the invasive Iris pseudacorus L. (Iridaceae) in the Southern Hemisphere: Considerations for biocontrol

Minuti, Gianmarco; Stiers, Iris; Coetzee, Julie A.

doi:10.1016/j.biocontrol.2022.104886

Cited by 10 publications

(6 citation statements)

References 57 publications

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“…The global distribution of I. pseudacorus includes 16 Köppen-Geiger climate zones (Minuti et al, 2022). The species has invaded and displaced native wetland vegetation in nearly every global ecozone (Gervazoni et al, 2020;Hayasaka et al, 2018;Mopper et al, 2016).…”

Section: Iris Pseudacorusmentioning

confidence: 99%

“…Despite regulatory restrictions on its transport and sale, horticulture continues to play a role in I. pseudacorus introductions (Beaury et al, 2021; Molina‐Montenegro et al, 2018). The global distribution of I. pseudacorus includes 16 Köppen‐Geiger climate zones (Minuti et al, 2022). The species has invaded and displaced native wetland vegetation in nearly every global ecozone (Gervazoni et al, 2020; Hayasaka et al, 2018; Mopper et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Phenotypic trait differences betweenIris pseudacorusin native and introduced ranges support greater capacity of invasive populations to withstand sea level rise

Grewell

Gallego‐Tévar

Bárcenas-Moreno

et al. 2023

Diversity and Distributions

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Aim Tidal wetlands are greatly impacted by climate change, and by the invasion of alien plant species that are being exposed to salinity changes and longer inundation periods resulting from sea level rise. To explore the capacity for the invasion of Iris pseudacorus to persist with sea level rise, we initiated an intercontinental study along estuarine gradients in the invaded North American range and the native European range. Location San Francisco Bay‐Delta Estuary; California, USA and Guadalquivir River Estuary; Andalusia, Spain. Methods We compared 15 morphological, biochemical, and reproductive plant traits within populations in both ranges to determine if specific functional traits can predict invasion success and if environmental factors explain observed phenotypic differences. Results Alien I. pseudacorus plants in the introduced range had more robust growth than plants in the native range. The vigour of the alien plants was reflected by expression of higher leaf water content, fewer senescent leaves per leaf fan, and more carbohydrate storage reserves in rhizomes than plants in the native range. Moreover, alien plants tended to show higher specific leaf area and seed production than native plants. I. pseudacorus plants in the introduced range were less affected by increasing salinity and were exposed to deeper inundation water along the estuarine gradient than those in the native range. Main Conclusions Functional trait differences suggest mature populations of I. pseudacorus in the introduced range have greater adapted capacity to adjust to environmental stresses induced by rising sea level than those in the native range. Knowledge of these trait responses can be applied to improve risk assessments in invaded estuaries and to achieve climate‐adapted conservation goals for conservation of the species in its native range.

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Section: Iris Pseudacorusmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phenotypic trait differences betweenIris pseudacorusin native and introduced ranges support greater capacity of invasive populations to withstand sea level rise

Grewell

Gallego‐Tévar

Bárcenas-Moreno

et al. 2023

Diversity and Distributions

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“…The emergent rooted aquatic plants are the main primary producers in aquatic ecosystems, and play an important role in the improvement of water quality and clarity by damping wave activity, stabilizing sediments, and, therefore, reducing shoreline erosion [18]. Iris pseudacorus, a typical emergent plant with high ornamental value, can withstand a broad range of environmental conditions [19]. Owing to its broad ecological tolerance and higher efficiency in pollutant removal, the plant is frequently used for urban landscaping [20] and phytoremediation of contaminants in water, such as organic compounds [21], heavy metals [20], and inorganic nutrients [5].…”

Section: Introductionmentioning

confidence: 99%

Effects of Graphene Oxide on the Growth and Photosynthesis of the Emergent Plant Iris pseudacorus

Zhou

et al. 2023

Plants

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The extensive applications of graphene oxide (GO) inevitably lead to entry into the natural aquatic environment. However, information on its toxicity to emergent plants is still lacking. In this study, an emergent plant, Iris pseudacorus, was exposed to GO (1, 20, 80, and 140 mg·L−1) under hydroponic conditions for 15 weeks. Changes in plant growth were assessed by analyzing plant biomass and photosynthetic pigment contents; the photosynthesis response was verified by measuring chlorophyll a fluorescence; and the nutrient levels of the plant were evaluated. Results showed that GO at 20–140 mg·L−1 significantly increased plant dry weight by 37–84% and photosynthetic pigment contents by 26–178%, and 80 mg·L−1 was the optimal concentration. PSII activity, adjustment capacities of electron transport in PSII, the grouping or energetic connectivity between PSII units, light energy conversion efficiency, photosynthesis performance indexes (by 11–51%), and contents of several nutrient elements (N, Fe, and Cu) were increased by 49–69%, 34–84%, and 11–38%, respectively. These findings indicate that GO can enhance plant growth by promoting plant photosynthesis performance and improving plant nutrient levels, and has great application potential in promoting the growth and development of this emergent plant as a phytoremediation agent.

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“…The wetland species Iris pseudacorus (L.) (yellow flag iris, Iridaceae), native to Europe, western Asia, and northern Africa, was introduced as an ornamental aquatic plant worldwide (Gervazoni et al, 2020). In many ecozones, I. pseudacorus has escaped cultivation and has been naturalized, becoming invasive in wetlands and marshes of South America, North America, South Africa, eastern Asia, Australia, and New Zealand where it is displacing native plant species (Mopper et al, 2016; Hayasaka et al, 2018; Minuti et al, 2022). Seeds of I. pseudacorus disperse via hydrochory; a large majority of seeds can float for months (Coops and Vandervelde, 1995; van den Broek et al, 2005).…”

mentioning

confidence: 99%

Germination niche breadth of invasive Iris pseudacorus (L.) suggests continued recruitment from seeds with global warming

Gillard

Castillo

Mesgaran

et al. 2022

American J of Botany

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Premise Understanding recruitment processes of invasive species is central to conservation and management strategies. Iris pseudacorus, an emergent macrophyte, has established invasive populations across a broad global range, and reduces biodiversity in wetland ecosystems. Climate change is altering germination cues, yet studies on the invasion of wetland macrophytes often ignore germination ecology despite its importance to their establishment and spread. Methods We explored germination of seeds from invasive I. pseudacorus populations in California in response to seed coat presence or absence, and several environmental factors. Using experimental results in a thermal time model, we derived germination temperature thresholds. Results Germination of I. pseudacorus seeds did not require cold or warm stratification, and was not affected by seed coat presence or absence. Germination occurred in the dark, although germinability was two‐ to threefold times greater under light. At constant temperature, thermal time model estimates included 18.3 ± 1.8°C base germination temperature ( T b $({T}_{b}$); 28.2 ± 0.5°C optimal temperature ( T o $({T}_{o}$); and 41.0 ± 1.7°C ceiling temperature ( T c $({T}_{c}$). Seeds exposed to 36.0°C achieved over 10% germination, and embryos of ungerminated seeds presented 76% viability. Overall, germinability remained relatively low at constant temperatures (≤25%) but was close to 90% under alternating daily temperatures. Conclusions Exposure to diurnally fluctuating temperatures is essential for this species to achieve high germination rates. Our study reveals that I. pseudacorus has a broad germination niche supporting its establishment in a relatively wide range of environments, including at high temperatures more frequent with climate change.

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Climatic suitability and compatibility of the invasive Iris pseudacorus L. (Iridaceae) in the Southern Hemisphere: Considerations for biocontrol

Cited by 10 publications

References 57 publications

Phenotypic trait differences betweenIris pseudacorusin native and introduced ranges support greater capacity of invasive populations to withstand sea level rise

Phenotypic trait differences betweenIris pseudacorusin native and introduced ranges support greater capacity of invasive populations to withstand sea level rise

Effects of Graphene Oxide on the Growth and Photosynthesis of the Emergent Plant Iris pseudacorus

Germination niche breadth of invasive Iris pseudacorus (L.) suggests continued recruitment from seeds with global warming

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