Photosynthetic response, antioxidase activity, and cadmium uptake and translocation in<i>Monochoria korsakowii</i>with cadmium exposure

Zhou, Wei; Xin, Jianpan; Tian, Runan

doi:10.2166/wst.2022.392

Cited by 3 publications

(1 citation statement)

References 39 publications

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“…The photosynthetic organs of plants are very sensitive to heavy metal stress [26]. Cd can affect various processes of photosynthesis.…”

Section: Effects Of Cadmium On P Divaricata Photosynthesismentioning

confidence: 99%

Heavy Metals Can Affect Plant Morphology and Limit Plant Growth and Photosynthesis Processes

Hu,

Zhao,

et al. 2023

Agronomy

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Soil heavy metal pollution caused by human activities has become one of the most critical environmental issues with a global concern. Phytoremediation is widely used due to its low cost and environmental friendliness. However, the impact of heavy metals on plant growth remains unclear. This study investigated the effects on the growth and photosynthetic activity of Picris divaricata Vant. under different cadmium concentrations using a hydroponics cultivation system. The results showed that the growth and photosynthetic processes of P. divaricata exhibited a phenomenon of promotion in low Cd concentrations and inhibition in high Cd concentrations. Under a low to medium Cd concentration (≤25 μM), there was no Cd toxicity in terms of plant growth, but high concentrations of Cd inhibited plant growth. The Fe content of leaves gradually increased as the Cd concentration increased; it reached 201.8 mg kg−1 in 75 μM Cd. However, there was no significant difference in Mn between the 75 μM Cd treatment and the control (p > 0.05). The contents of carotenoid ranged between 3.06 and 3.26 mg/g across the different Cd treatments, showing no significant differences. The treatment with 5–75 μM Cd did not directly affect the photosynthesis of P. divaricata. Higher Cd concentrations reduced the stomatal density on the of P. divaricata leaves, resulting in stomatal and mesophyll conductance limitations, indirectly affecting P. divaricata photosynthesis. These research results provide a reference for evaluating and selecting heavy metal tolerant plants and provide environmentally friendly approaches to remediate heavy metal pollution.

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“…The photosynthetic organs of plants are very sensitive to heavy metal stress [26]. Cd can affect various processes of photosynthesis.…”

Section: Effects Of Cadmium On P Divaricata Photosynthesismentioning

confidence: 99%

Heavy Metals Can Affect Plant Morphology and Limit Plant Growth and Photosynthesis Processes

Hu,

Zhao,

et al. 2023

Agronomy

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Responses of glyoxalase system, ascorbate-glutathione cycle, and antioxidant enzymes in Pontederia cordata to lead stress and its capacity to remove lead

Xin,

Ma,

Tian

2024

International Journal of Phytoremediation

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Photosynthetic variation and detoxification strategies based on cadmium uptake, non-protein thiols, and secondary metabolites in Miscanthus sacchariflorus under cadmium exposure

Zhao,

Xin,

Zhu

et al. 2024

Water Science &Amp; Technology

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Miscanthus sacchariflorus is previously demonstrated to be a potential candidate for remediation of cadmium (Cd) pollution. To explore its resistance strategy to Cd, a hydroponic experiment was conducted to determine the variations of photosynthetic activity in leaves and physiological response in roots of this plant. Results showed that the root of M. sacchariflorus was the primary location for Cd accumulation. The bio-concentration factor in the roots and rhizomes was >1, and the translocation factor from underground to aboveground was <1. Throughout the experimental period, treatment with 0.06 mM Cd2+ did not significantly alter the contents of chlorophyll a, chlorophyll b, or carotenoid. By contrast, treatment with 0.15 and 0.30 mM Cd2+ decreased the contents of chlorophyll a, chlorophyll b, and carotenoid; caused the deformation of the chlorophyll fluorescence transient curve; reduced the photochemical efficiency of photosystem II; and increased the contents of non-protein thiols, total flavone, and total phenol. These results indicate that M. sacchariflorus has good adaptability to 0.06 mM Cd2+. Moreover, the accumulation of the non-protein thiols, total flavone, and total phenol in roots may promote the chelation of Cd2+, thus alleviating Cd toxicity. This study provides theoretical support for using M. sacchariflorus to remediate Cd-polluted wetlands.

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Photosynthetic response, antioxidase activity, and cadmium uptake and translocation inMonochoria korsakowiiwith cadmium exposure

Cited by 3 publications

References 39 publications

Heavy Metals Can Affect Plant Morphology and Limit Plant Growth and Photosynthesis Processes

Heavy Metals Can Affect Plant Morphology and Limit Plant Growth and Photosynthesis Processes

Responses of glyoxalase system, ascorbate-glutathione cycle, and antioxidant enzymes in Pontederia cordata to lead stress and its capacity to remove lead

Photosynthetic variation and detoxification strategies based on cadmium uptake, non-protein thiols, and secondary metabolites in Miscanthus sacchariflorus under cadmium exposure

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