Reproductive strategies of Xanthium italicum differ from those of native Xanthium sibiricum, and they are key to its invasiveness

Jiang, Meng; Ma, Miao; Lin, Hui; Ma, Xia

doi:10.1007/s11258-021-01219-0

Cited by 6 publications

(5 citation statements)

References 27 publications

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“…Lantana is a small broad-leaf flowering shrub within the Verbenaceae family, native to Central and South American tropics, but now dominating landscapes in over 50 countries, making it one of the world’s top 10 invasives (Ghisalberti, 2000 ; Sharma et al, 1988 ). Pollen viability data become important in the context of both, species invasivity and habitat invasibility (Jiang et al, 2022 ). Other studies have also established that assessment of morphological and cytological differences among Lantana varieties can help in measuring invasive potential and suitability for commercial production and landscape use (Steppe et al, 2019 ).…”

Section: Pollen Viability In Invasion Biologymentioning

confidence: 99%

Quantification of pollen viability in Lantana camara by digital holographic microscopy

et al. 2023

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Pollen grains represent the male gametes of seed plants and their viability is critical for sexual reproduction in the plant life cycle. Palynology and viability studies have traditionally been used to address a range of botanical, ecological and geological questions, but recent work has revealed the importance of pollen viability in invasion biology as well. Here, we report an efficient visual method for assessing the viability of pollen using digital holographic microscopy (DHM). Imaging data reveal that quantitative phase information provided by the technique can be correlated with viability as indicated by the outcome of the colorimetric test. We successfully test this method on pollen grains of Lantana camara, a well-known alien invasive plant in the tropical world. Our results show that pollen viability may be assessed accurately without the usual staining procedure and suggest potential applications of the DHM methodology to a number of emerging areas in plant science.

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Section: Pollen Viability In Invasion Biologymentioning

confidence: 99%

Quantification of pollen viability in Lantana camara by digital holographic microscopy

et al. 2023

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“…The current distribution range of X. italicum covers different ecosystems and climate environments, ranging from southeastern to northwestern China, which span a temperate continental monsoon climate to a typical temperate continental arid/semiarid climate 8 . This plant is characterized by unique seed heteromorphism, a long flowering period, and high production and viability of pollen grains, which are considered to contribute to its reproductive success and adaptability to various environments 9,10 …”

Section: Introductionmentioning

confidence: 99%

“…8 This plant is characterized by unique seed heteromorphism, a long flowering period, and high production and viability of pollen grains, which are considered to contribute to its reproductive success and adaptability to various environments. 9,10 Today, application of broad-spectrum herbicides is still the most common way of managing plant invasion. In fact, modern agriculture relies heavily on synthetic agrochemicals for weed control because of their high effectiveness and low cost.…”

Section: Introductionmentioning

confidence: 99%

Potential of utilizing pathogen‐derived mycotoxins as alternatives to synthetic herbicides in controlling the noxious invasive plant Xanthium italicum

Cui

Luo

Liu

et al. 2023

Pest Management Science

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Discovery of environmentally friendly agents for controlling alien invasive species (AIS) is challenging and in urgent need as their expansion continues to increase. Xanthium italicum is a notorious invasive weed that has caused serious ecological and economic impacts worldwide. For the purpose of exploring the possibility of utilizing herbicidal mycotoxins to control this species, three compounds, a new compound, curvularioxide (1), a new naturally occurring compound, dehydroradicinin (2), and a known compound, radicinin (3), were isolated via activity‐guided fractionation from the secondary metabolites of the pathogenic Curvularia inaequalis, which was found to infect X. italicum in natural habitats. All isolated compounds exhibited potent herbicidal activity on receiver species. It is noteworthy to mention that their effects on X. italicum in our bioassays were equivalent to the commercial herbicide glyphosate. Subsequent morphological analysis revealed that application of radicinin (3) severely hindered X. italicum seedlings' hypocotyl and root development. Malondialdehyde content and the activity of catalase and peroxidase of the seedlings were also significantly different from the control, implying the occurrence of induced oxidative stress. Our results suggest that pathogens infecting invasive plants might be valuable resources for developing safer herbicides for controlling weeds. © 2023 Society of Chemical Industry.

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“…These invasive species have a strong impact on fragile and vulnerable ecosystems such as mountain regions [ 10 ], island and coastal zones, and protected areas [ 6 ]. Invasive plant species acquire a competitive edge over the natives owing to their exceptional traits such as strong reproductive and dispersal strategies, tolerance to abiotic and biotic stresses, plastic and adaptive responses, efficient resource capture, and phytotoxic potential [ 11 , 12 , 13 , 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Projected Impacts of Climate Change on the Range Expansion of the Invasive Straggler Daisy (Calyptocarpus vialis) in the Northwestern Indian Himalayan Region

Lal,

Chauhan,

Kaur

et al. 2023

Plants

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Human-induced climate change modifies plant species distribution, reorganizing ecologically suitable habitats for invasive species. In this study, we identified the environmental factors that are important for the spread of Calyptocarpus vialis, an emerging invasive weed in the northwestern Indian Himalayan Region (IHR), along with possible habitats of the weed under current climatic scenarios and potential range expansion under several representative concentration pathways (RCPs) using MaxEnt niche modeling. The prediction had a high AUC (area under the curve) value of 0.894 ± 0.010 and a remarkable correlation between the test and expected omission rates. BIO15 (precipitation seasonality; 38.8%) and BIO1 (annual mean temperature; 35.7%) had the greatest impact on the probable distribution of C. vialis, followed by elevation (11.7%) and landcover (6.3%). The findings show that, unlike the current situation, “high” and “very high” suitability areas would rise while less-suited habitats would disappear. All RCPs (2.6, 4.5, 6.0, and 8.5) indicate the expansion of C. vialis in “high” suitability areas, but RCP 4.5 predicts contraction, and RCPs 2.6, 6.0, and 8.5 predict expansion in “very high” probability areas. The current distribution of C. vialis is 21.59% of the total area of the state, with “medium” to “high” invasion suitability, but under the RCP 8.5 scenario, it might grow by 10% by 2070. The study also reveals that C. vialis may expand its niche at both lower and higher elevations. This study clarifies how bioclimatic and topographic factors affect the dispersion of invasive species in the biodiverse IHR. Policymakers and land-use managers can utilize the data to monitor C. vialis hotspots and develop scientifically sound management methods.

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Reproductive strategies of Xanthium italicum differ from those of native Xanthium sibiricum, and they are key to its invasiveness

Cited by 6 publications

References 27 publications

Quantification of pollen viability in Lantana camara by digital holographic microscopy

Quantification of pollen viability in Lantana camara by digital holographic microscopy

Potential of utilizing pathogen‐derived mycotoxins as alternatives to synthetic herbicides in controlling the noxious invasive plant Xanthium italicum

Projected Impacts of Climate Change on the Range Expansion of the Invasive Straggler Daisy (Calyptocarpus vialis) in the Northwestern Indian Himalayan Region

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