Physiological resistance of Sasa argenteostriata (Regel) E.G. Camus in response to high-concentration soil Pb stress

Cai, Xinyi; Liao, Jiarong; Yang, Yixiong; Li, Ningfeng; Xu, Min; Jiang, Mingyan; Chen, Qibing; Li, Xi; Liu, Shiliang; Luo, Zhenghua; Sun, Lina

doi:10.1007/s11738-020-03197-8

Cited by 9 publications

(4 citation statements)

References 51 publications

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“…However, under a Pb stress concentration of 100 mg/L, the antioxidant enzyme activity was inhibited, the ROS clearance effect was decreased, and the ROS content in the alfalfa was significantly increased, which damaged the cell membrane and interfered with the metabolic ability of the plants. Interestingly, the same phenomenon was found in dwarf bamboo under high Pb soil stress concentrations (Cai et al 2021).…”

Section: Discussionsupporting

confidence: 67%

Antioxidant response by alfalfa (Medicago sativa L.) to Pb pollution - A study to value the feasibility of soil phytoremediation

Liu¹,

Wang²,

Zhang³

et al. 2022

Soil & Water Res.

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With the surrounding environment of Inner Mongolia lead (Pb) ore as the research background, the germination and physio-biochemical effects of Pb stress on alfalfa were discussed to employ this species for the remediation of Pb contaminated soil. Research has shown that a low Pb stress concentration could improve the biological resistance of alfalfa seeds, while a high Pb stress concentration cannot be tolerated. Interestingly, when the Pb concentration was 5 mg/L, the germination rate of the seed was promoted, and the chlorophyll content was especially increased. As the Pb content and stress increased, the amount of malondialdehyde (MDA), H2O2, catalase (CAT) increased; while the root cell viability, chlorophyll and soluble protein content decreased. In consequence, alfalfa was tolerant to Pb stress of 5 mg/L, inversely, its growth was inhibited at levels higher than 5 mg/L, and it was poisoned at 500 mg/L. Based on the principal component analysis (PCA), the H2O2, O2–, chlorophyll total, chlorophyll a, CAT and proline content explicitly reflected the change in the physiology on the alfalfa and its tolerance under Pb stress.

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Section: Discussionsupporting

confidence: 67%

Antioxidant response by alfalfa (Medicago sativa L.) to Pb pollution - A study to value the feasibility of soil phytoremediation

Liu¹,

Wang²,

Zhang³

et al. 2022

Soil & Water Res.

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“…Therefore, we speculate that the leaves of S. argenteostriata preferentially absorb Zn as a tolerance strategy to alleviate the toxicity of Pb [21,44]. In addition, S. argenteostriata has been reported to be able to resist single Pb stress by greatly increasing Pro [29,30], also under combined Pb-Zn stress. Thus, we can know that the increase in Pro content is an effective way for S. argenteostriata to resist heavy metal toxicity.…”

Section: Tolerance and Heavy Metal Accumulation Characteristics Of S ...mentioning

confidence: 89%

“…Camus have been reported to have a strong remediation effect on Pb, Zn, Cd and other heavy metals [23][24][25][26][27]. For S. argenteostriata under Pb stress, there is the detoxification strategy of the transformation of Pb to a lowtoxicity/low-migration form [28], the tolerance strategy of the root absorbing a large amount of Pb and isolating it in vacuoles [29] and the effective resistance mechanisms of inducing the antioxidant enzyme system and ascorbic acid-glutathione cycle and promoting chelation [30]. However, the tolerance and accumulation characteristics of S. argenteostriata to Zn and Pb-Zn are still unclear.…”

Section: Introductionmentioning

confidence: 99%

Tolerance and Heavy Metal Accumulation Characteristics of Sasa argenteostriata (Regel) E.G. Camus under Zinc Single Stress and Combined Lead–Zinc Stress

Liao

Yang

et al. 2022

Toxics

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Sasa argenteostriata (Regel) E.G. Camus is a gramineous plant with the potential for phytoremediation. In this study, we aimed to determine its tolerance to zinc stress and combined lead–zinc stress and the effect of zinc on its absorption and accumulation characteristics of lead. The results showed that S. argenteostriata had good tolerance to zinc stress, and S. argenteostriata was not significantly damaged when the zinc stress concentration was 600 mg/L. Under both zinc stress and combined lead–zinc stress, the root was the main organ that accumulated heavy metals in S. argenteostriata. The presence of zinc promoted the absorption of lead by the root of S. argenteostriata, and the lead content in the root under PZ1, PZ2, PZ3 and PZ4 treatments was 2.15, 4.31, 4.47 and 6.01 times that of PZ0 on the 20 days. In the combined lead–zinc stress treatments, the toxicity of heavy metals to S. argenteostriata was mainly caused by lead. Under high concentrations of combined lead–zinc stress (PZ4), the proportion of zinc in the leaf of S. argenteostriata on the 20 days increased, which was used as a tolerance strategy to alleviate the toxicity of lead.

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“…Studies postulate that some bamboo species have good tolerance and Pb-accumulation ability under Pb stress [10]. Our previous study showed dwarf bamboo, such as Sasa fortunei (Van Houtte) Fiori, Sasa agrenteostriata (Regel) E. G. Gamus, and Indocalamus decorus Q. H. Dai have strong tolerance, a reasonable detoxification mechanism, and high lead-accumulation ability under Pb stress [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Effects of Simultaneous Application of Double Chelating Agents to Pb-Contaminated Soil on the Phytoremediation Efficiency of Indocalamus decorus Q. H. Dai and the Soil Environment

Yang

Jiang

Liao

et al. 2022

Toxics

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Recent studies have shown that the combined application of ethylenediaminetetraacetic acid (EDTA) and degradable chelating agents can enhance EDTA’s affinity for heavy metals and reduce its toxicity, but the effect of this combination on the phytoremediation remains largely unknown. This study evaluated and compared the effects of EDTA, nitrilotriacetic acid (NTA), and glutamic acid-N,N-diacetic acid (GLDA) alone (E, N, G treatment), and in combination (EN and EG treatment), on the growth of dwarf bamboo (Indocalamus decorus Q. H. Dai), their phytoremediation efficiency, and the soil environment in Pb-contaminated soil. The results showed that treatment E significantly reduced the biomass, while treatments N and EN were more conducive to the distribution of aerial plant biomass. Except for treatment E, the total Pb accumulation in all treatments increased significantly, with the highest increase in treatment EN. For double chelating agents, the acid-soluble Pb concentrations in rhizosphere and non-rhizosphere soils of treatments EN and EG were lower than those of treatment E, and the soil water-soluble Pb content after 20 days of treatment EN was significantly lower than that of treatment EG. Furthermore, chelating agents generally increased soil-enzyme activity in rhizosphere soil, indicating that chelating agents may promote plant heavy-metal uptake by changing the rhizosphere environment. In conclusion, treatment EN had the highest phytoremediation efficiency and significantly lower environmental risk than treatments E and EG, highlighting its massive potential for application in phytoremediation of Pb-contaminated soil when combined with I. decorus.

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Physiological resistance of Sasa argenteostriata (Regel) E.G. Camus in response to high-concentration soil Pb stress

Cited by 9 publications

References 51 publications

Antioxidant response by alfalfa (Medicago sativa L.) to Pb pollution - A study to value the feasibility of soil phytoremediation

Antioxidant response by alfalfa (Medicago sativa L.) to Pb pollution - A study to value the feasibility of soil phytoremediation

Tolerance and Heavy Metal Accumulation Characteristics of Sasa argenteostriata (Regel) E.G. Camus under Zinc Single Stress and Combined Lead–Zinc Stress

Effects of Simultaneous Application of Double Chelating Agents to Pb-Contaminated Soil on the Phytoremediation Efficiency of Indocalamus decorus Q. H. Dai and the Soil Environment

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