Cadmium hyperaccumulation as an inexpensive metal armor against disease in Crofton weed

Cai, Honghong; Qi, Shanshan; Li, Jian; Zhai, De‐Li; Wan, Justin S. H.; Du, Daolin

doi:10.1016/j.envpol.2020.115649

Cited by 20 publications

(17 citation statements)

References 61 publications

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“…The global geographic distribution of plant communities, particularly IPS, is under serious threat due to the fragility of aquatic ecosystems [ 78 ]. The IPS are frequently dominant over the native ecological areas and disrupt the biome biodiversity [ 79 ].…”

Section: Correlation Of Hms and Invasive Plant Speciesmentioning

confidence: 99%

A Green Approach Used for Heavy Metals ‘Phytoremediation’ Via Invasive Plant Species to Mitigate Environmental Pollution: A Review

Khan

Gul

et al. 2023

Plants

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Heavy metals (HMs) normally occur in nature and are rapidly released into ecosystems by anthropogenic activities, leading to a series of threats to plant productivity as well as human health. Phytoremediation is a clean, eco-friendly, and cost-effective method for reducing soil toxicity, particularly in weedy plants (invasive plant species (IPS)). This method provides a favorable tool for HM hyperaccumulation using invasive plants. Improving the phytoremediation strategy requires a profound knowledge of HM uptake and translocation as well as the development of resistance or tolerance to HMs. This review describes a comprehensive mechanism of uptake and translocation of HMs and their subsequent detoxification with the IPS via phytoremediation. Additionally, the improvement of phytoremediation through advanced biotechnological strategies, including genetic engineering, nanoparticles, microorganisms, CRISPR-Cas9, and protein basis, is discussed. In summary, this appraisal will provide a new platform for the uptake, translocation, and detoxification of HMs via the phytoremediation process of the IPS.

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Section: Correlation Of Hms and Invasive Plant Speciesmentioning

confidence: 99%

A Green Approach Used for Heavy Metals ‘Phytoremediation’ Via Invasive Plant Species to Mitigate Environmental Pollution: A Review

Khan

Gul

et al. 2023

Plants

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“…This result was also in line with the higher Cd accumulation in invasive plants, particularly in the roots. Similarly, Ageratina adenophora , a widely invasive plant species, can quickly accumulate Cd in its roots in metal-contaminated areas (Lux et al, 2011 ; Dai et al, 2020 ). These results indicate that invasive plants exhibit greater resistance to high Cd levels than native plants.…”

Section: Discussionmentioning

confidence: 99%

Leaf Functional Traits of Invasive Grasses Conferring High-Cadmium Adaptation Over Natives

et al. 2022

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Heavy metal (HM) contamination resulting from industrialization and urbanization during the Anthropocene along with plant invasion can severely threaten the growth and adaptation of local flora. Invasive alien plant species generally exhibit a growth pattern consistent with their functional traits in non-contaminated environments in the introduced range. However, it remains unclear whether invasive alien plants have an advantage over native plants in contaminated environments and whether this growth pattern is dependent on the adaptation of their leaf functional traits. Here, we selected two congeneric pairs of invasive alien and native grasses that naturally co-exist in China and are commonly found growing in contaminated soil. To evaluate the effect of cadmium (Cd) on the structural and physiological leaf traits, we grew all four species in soil contaminated without or with 80 mg/kg Cd. Invasive plants contained significantly higher concentrations of Cd in all three organs (leaf, stem, and root). They displayed a higher transfer factor and bioconcentration factor (BCF) of shoot and root than natives, indicating that invasive species are potential Cd hyperaccumulators. Invasive plants accumulated polyphenol oxidase (PPO) to higher levels than natives and showed similar patterns of leaf structural and physiological traits in response to changes in Cd bioconcentration. The quantifiable leaf structural traits of invasive plants were significantly greater (except for stomatal density and number of dead leaves) than native plants. Leaf physiological traits, chlorophyll content, and flavonoid content were also significantly higher in invasive plants than in natives under Cd stress conditions after 4 weeks, although nitrogen balance index (NBI) showed no significant difference between the two species. Chlorophyll fluorescence parameters decreased, except for the quantum yield of photosystem II (ΦPSII) and the proportion of open photosystem II (qP), which increased under Cd stress conditions in both species. However, invasive plants exhibited higher fluorescence parameters than natives under Cd stress, and the decrement observed in invasive plants under Cd stress was greater than that in natives. High Cd adaptation of invasive grasses over natives suggests that invasive plants possess optimal leaf structural and physiological traits, which enable them to adapt to stressful conditions and capture resources more quickly than natives. This study further emphasizes the potential invasion of alien plants in contaminated soil environments within the introduced range. To a certain extent, some non-invasive alien plants might adapt to metalliferous environments and serve as hyperaccumulator candidates in phytoremediation projects in contaminated environments.

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“…A capacidade de Pteris vittata em absorver As também é bastante estudada (HE et al, 2016;LI et al, 2018). No entanto, a maioria das espécies hiperacumulam o Zn, a exemplo a Ageratina adenophora, Berkheya coddii e várias espécies do gênero Alyssum (DAI et al, 2020;RADZIEMSK et al, 2018).…”

Section: Plantas Hiperacumuladorasunclassified

“…A defesa elementar é altamente econômica para hiperacumuladoras, pois diminui os gastos energéticos que seriam necessários para o investimento em outras estratégias de defesa (DAI et al, 2020).…”

Section: Plantas Hiperacumuladorasunclassified

Auxina: ação do hormônio indutor de crescimento em soja

Cassel¹,

Rother²,

Pimenta³

et al. 2022

Coletânea Internacional De Pesquisa Em Ciências Agrárias E Biológicas Vol.01

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Cadmium hyperaccumulation as an inexpensive metal armor against disease in Crofton weed

Cited by 20 publications

References 61 publications

A Green Approach Used for Heavy Metals ‘Phytoremediation’ Via Invasive Plant Species to Mitigate Environmental Pollution: A Review

A Green Approach Used for Heavy Metals ‘Phytoremediation’ Via Invasive Plant Species to Mitigate Environmental Pollution: A Review

Leaf Functional Traits of Invasive Grasses Conferring High-Cadmium Adaptation Over Natives

Auxina: ação do hormônio indutor de crescimento em soja

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