Cadmium stress in Dongying wild soybean seedlings: growth, Cd accumulation, and photosynthesis

Liu, L.; Shang, Yanxia; Li, L.; Chen, Y. H.; Qin, Z. Z.; Zhou, Lijun; Yuan, Ming; Ding, Chunbang; Liu, J.; Huang, Yan; Yang, Rongjie; Zhou, Yonghong; Liao, Jichao

doi:10.1007/s11099-018-0844-2

Cited by 16 publications

(4 citation statements)

References 47 publications

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“…Under single and combined stress, the TF was less than 1, further confirming the results. These results are similar to those of Liu et al [56]. However, in our study, there was no obvious accumulation in various parts of the D. involucrata plants when the Pb concentration was high.…”

Section: Accumulation and Translocation Of Pb And CD In D Involucratasupporting

confidence: 92%

Response of photosynthesis to different concentrations of heavy metals in Davidia involucrata

et al. 2020

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Lead (Pb) and cadmium (Cd) are highly toxic and are widespread in agricultural soils, representing risks to plant and human health. In this study, Davidia involucrata was cultivated in soil with different concentrations of Pb and Cd and sampled after 90 days. We used ANOVA to analyse the photosynthesis of D. involucrata and the ability of Pb and Cd to enrich and migrate in roots, stems and leaves. Various results are described here. 1) Under individual and combined Pb and Cd stress, the accumulation factors in the roots were greater than 1, which was significantly greater than those in the stems and leaves (P < 0.05), and the translocation factors both were less than 1. The Pb and Cd enrichment ability of D. involucrata roots was significantly higher than that of stems and leaves, and the migration ability of the two heavy metals in D. involucrata was weak. 2) The Mg-dechelatase activities of chlorophyll degradation products increased under stress due to high concentrations of Pb and Cd. However, chlorophyllase activity was higher at relatively low concentrations of the two heavy metals (P < 0.05). δ-Aminolevulinic acid and porphobilinogen of chlorophyll synthesis products are easily converted to uroporphyrinogen III under low concentrations of Cd, which promotes the synthesis of chlorophyll.3) The effect of Cd stress alone on the chlorophyll concentration was not significant. Under combined stress, concentrations of Pb and Cd in the range of 400~800 mg�kg -1 and 5~20 mg�kg -1 significantly promoted an increase in photosynthetic pigments (P < 0.05). 4) Inhibition of the net photosynthetic rate increased with increasing Pb and Cd concentrations under both individual and combined stress. In addition, the root of D. involucrata had a strong absorption and fixation effect on heavy metals, thereby reducing metal toxicity and improving the tolerance of D. involucrata to heavy metals. , et al. (2020) Response of photosynthesis to different concentrations of heavy metals in Davidia involucrata. PLoS ONE 15(3): e0228563.

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Section: Accumulation and Translocation Of Pb And CD In D Involucratasupporting

confidence: 92%

Response of photosynthesis to different concentrations of heavy metals in Davidia involucrata

et al. 2020

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“…Photosynthesis, one of the most important biological processes for plant growth and food production, is especially sensitive to Cd stress [76][77][78][79]. As shown in Figure 4, the net photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate (Tr), and intercellular CO 2 concentration (Ci) in the leaves of L. japonica under different treatments were evaluated.…”

Section: The Effect Of Electric Field On Photosynthetic Parametersmentioning

confidence: 99%

Electric Field-Enhanced Cadmium Accumulation and Photosynthesis in a Woody Ornamental Hyperaccumulator—Lonicera japonica Thunb.

Liu

Chen²,

Lin

et al. 2022

Plants

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The multi-system of electro-phytotechnology using a woody ornamental cadmium (Cd) hyperaccumulator (Lonicera japonica Thunb.) is a new departure for environmental remediation. The effects of four electric field conditions on Cd accumulation, growth, and photosynthesis of L. japonica under four Cd treatments were investigated. Under 25 and 50 mg L−1 Cd treatments, Cd accumulation in L. japonica was enhanced significantly compared to the control and reached 1110.79 mg kg−1 in root and 428.67 mg kg−1 in shoots influenced by the electric field, especially at 2 V cm−1, and with higher bioaccumulation coefficient (BC), translocation factor (TF), removal efficiency (RE), and the maximum Cd uptake, indicating that 2 V cm−1 voltage may be the most suitable electric field for consolidating Cd-hyperaccumulator ability. It is accompanied by increased root and shoots biomass and photosynthetic parameters through the electric field effect. These results show that a suitable electric field may improve the growth, hyperaccumulation, and photosynthetic ability of L.japonica. Meanwhile, low Cd supply (5 mg L−1) and medium voltage (2 V cm−1) improved plant growth and photosynthetic capacity, conducive to the practical application to a plant facing low concentration Cd contamination in the real environment.

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“…Under Cd stress, plants often show growth inhibition and biomass reduction [38,39]. It has been reported that the suppression of plant growth is one of the most crucial characteristics in plants under Cd stress [40].…”

Section: Discussionmentioning

confidence: 99%

Exogenous Hemin Confers Cadmium Tolerance by Decreasing Cadmium Accumulation and Modulating Water Status and Matter Accumulation in Maize Seedlings

et al. 2021

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Cadmium (Cd) contamination harms plant growth and human health. The application of hemin (ferroprotoporphyrin IX) can effectively relieve abiotic stresses in plants. This work investigates the effects of hemin on alleviating Cd toxicity and enhancing Cd tolerance in maize seedlings. In this study, maize seedlings were cultivated in nutrient solutions, with a combination of CdCl2 (464 μmol L−1) and hemin (100 μmol L−1). We measured plant growth status, water status, Cd concentration, and Cd distribution in maize seedlings. The results indicated that Cd stress increased Cd accumulation in plants and inhibited plant growth. However, hemin alleviated the growth inhibition and improved water balance, root morphology, and root vitality under Cd stress. Additionally, hemin increased 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA), total phenolic content, and phenylalanine ammonia lyase (PAL) activity to enhance tolerance to Cd stress. Hemin reduced Cd concentration, the translocation factor (TF), and the bioconcentration factor (BCF) in maize seedlings under Cd stress. Furthermore, hemin increased Cd concentrations in the cell wall and the soluble fraction of seedling roots, which helped reduce Cd transport from root to shoot. In summary, exogenous hemin could be used for alleviating adverse impacts on maize seedling induced by Cd stress.

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Cadmium stress in Dongying wild soybean seedlings: growth, Cd accumulation, and photosynthesis

Cited by 16 publications

References 47 publications

Response of photosynthesis to different concentrations of heavy metals in Davidia involucrata

Response of photosynthesis to different concentrations of heavy metals in Davidia involucrata

Electric Field-Enhanced Cadmium Accumulation and Photosynthesis in a Woody Ornamental Hyperaccumulator—Lonicera japonica Thunb.

Exogenous Hemin Confers Cadmium Tolerance by Decreasing Cadmium Accumulation and Modulating Water Status and Matter Accumulation in Maize Seedlings

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