Phosphorus influence Cd phytoextraction in Populus stems via modulating xylem development, cell wall Cd storage and antioxidant defense

Yang, Can; Qiu, Wenwen; Chen, Zexin; Chen, Wenyi; Li, Yunfei; Zhu, Jingle; Rahman, Siddiq Ur; Han, Zixuan; Jiang, Yun; Yang, Guijuan; Tian, Jichun; Ma, Qin; Zhang, Yi

doi:10.1016/j.chemosphere.2019.125154

Cited by 47 publications

(13 citation statements)

References 43 publications

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“…Furthermore, Cd stress leads to oxidative stress in plants (DalCorso et al 2008), but plants have wellequipped strategies, such as different antioxidant enzymes (e.g., SOD, CAT, APX, and POD), to prevent oxidative damage(Romero-Puertas et al 2007). The activity of SOD, CAT, and POD increased in FP36 roots after prolonged low-Cd stress (0.1 mg/kg) but signi cantly reduced after high-Cd (1.0 mg/kg) treatment; these ndings are consistent with the results of previous studies of rice(Huang et al 2021) and pea (Romero-Puertas et al 2007) but are in contrast to the results of studies of Populus stems(Yang et al 2020) and tall fescue(Li et al 2021). The activity of APX was increased in the low (0.1 mg/kg) and high (1.0 mg/kg) Cd-treated rice plants; this nding was in contrast to the results of studies of soybean(Balestrasse et al 2001) and barley roots(Hegedus et al 2001) but consistent with those of maize(Krantev et al 2008) and wheat(Khan et al 2007).…”

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confidence: 91%

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Phosphorus application modulates cadmium toxicity in rice (Oryza sativa L.) by affecting the antioxidant defense system and regulating the expression of iron uptake/transport-related genes

Shao

Huang

et al. 2022

Preprint

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Exogenous phosphorus (P) application can affect the degree of cadmium (Cd) accumulation in plants. In this study, a high-Cd accumulating rice cultivar (Fupin 36) was used to investigate the relationship between P and Cd. Pot experiments (hydroponics and soil culture) showed that Cd exposure inhibited increases in plant biomass and interfered with the uptake of nutrient elements. However, application of appropriate levels of P mitigated the deleterious effects of Cd and decreased Cd accumulation in rice, whereas application of a high level of P exacerbated Cd toxicity, indicating that Cd accumulation was P concentration/availability-dependent. Kinetics analysis showed that Cd uptake in the roots was positively correlated with the P absorption pathway. Appropriate levels of exogenous P application increased the activity of antioxidant enzymes (including superoxide dismutase, peroxidase, catalase, and ascorbate peroxidase) and alleviated the effect of lipid peroxidation on plant growth, which ameliorated Cd-associated toxicity. The content of various elements significantly changed in response to P application and Cd stress; Fe accumulation reduced, and the expression of Fe-responsive genes (e.g., OsNRAMP1, OsIRT1, OsYSL15, OsIRO2, and OsNAS2) was altered. These findings indicated that P regulated Cd (im)mobilization by mediating the Fe homeostasis pathway in plants. In conclusion, P contributes to Cd toxicity in rice by modulating antioxidant defense and thus Cd tolerance and by interfering with the Fe uptake-associated pathway (strategy I and II systems). Additionally, appropriate levels of P application can enhance the Cd detoxification process and plant growth and ensure grain production and security.

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confidence: 91%

“…Changes in the activity of these enzymes in Cd-stressed plants with increasing P levels were similar: the activity initially increased (2.5 mg/kg P) and then decreased (10.0 and 20.0 mg/kg P) in a dose-dependent manner. Similar results have been obtained in different plant species under exposure to Cd treatment(Jia et al 2020;Yang et al 2020;Li et al 2021).…”

supporting

confidence: 86%

Phosphorus application modulates cadmium toxicity in rice (Oryza sativa L.) by affecting the antioxidant defense system and regulating the expression of iron uptake/transport-related genes

Shao

Huang

et al. 2022

Preprint

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“…6C and D). Changes in the cell wall is directly related to plant defense responses [44,45,46]. Treatment of plants with FA induces their defenses, induces lignin production and callose in the cell, resulted in greater mechanical strength of the cell wall and blockage of passages used by pathogens [37].…”

Section: Effect Of Intercropping On Physiological and Biochemical Resmentioning

confidence: 99%

Wheat/faba bean intercropping improves physiological and structural resistance of faba bean to fusaric acid stress

Zhao

et al. 2020

Plant Pathology

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Fusarium oxysporum f. sp. fabae is the causal agent of fusarium wilt. Fusaric acid (FA), produced by F. oxysporum, plays an important role in the occurrence of disease, and intercropping is an effective measure for control of disease and for improving host resistance in plants. The objective of this study was to investigate the physiological and biochemical responses, and mechanisms of tissue structure resistance, of intercropped faba beans following exposure to different concentrations of FA. Results demonstrated that intercropping reduced the occurrence of fusarium wilt, and improved faba bean growth and yield. In addition, wheat intercropping significantly reduced red ink absorption of faba bean (33.2%), increased water content (3.1%), and increased activity of the root antioxidant enzymes peroxidase (POD) and catalase (CAT) (26.3% and 2.2.%, respectively). Furthermore, increased lignin content and callose deposition in plant vessels were observed (12.5% and 42.7%, respectively) when subjected to the highest concentration of FA stress (200 mg/L). Intercropping resulted in more intact root cell morphology, increased occurrence of intracellular vacuoles, increased cell wall thickness, and an increase in the number of mitochondria and rough endoplasmic reticulum. Intercropping alleviated the wilting effect of FA on faba bean via enhanced physiological, biochemical, and tissue structure resistance of faba bean root.

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“…Sulfate and cysteine can promote ABA synthesis by acting as substrates of corresponding enzymes, which connects sulfate metabolism with the biosynthesis of ABA ( Cao et al, 2014 ; Batool et al, 2018 ; Fatma et al, 2021 ). In addition, miR395c functions as an essential component in plant resistance to cadmium (Cd), Verticillium dahliae infection, and leaf spot disease ( Zhang et al, 2013 , 2017 ; Mu et al, 2018 ; Yang et al, 2020 ). However, miR395’s role in plant development remains unclear.…”

Section: Introductionmentioning

confidence: 99%

MiR395c Regulates Secondary Xylem Development Through Sulfate Metabolism in Poplar

Liu

Wang

et al. 2022

Front. Plant Sci.

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Secondary xylem development requires the coordination of multiple regulatory factors, including plant hormones, transcription factors, and microRNAs (miRNAs). MiR395 is an important regulator involved in sulfate metabolism, but its function in plant development is unclear. This study investigated the functions of miR395c in the secondary xylem development in Populus alba × P. glandulosa. MiR395c was highly expressed in the shoot apex and secondary xylem. The overexpression of miR395c resulted in an increase in both secondary xylem width and vessel dimension, as well as a decrease in the thickness of the secondary cell wall of the xylem fiber. Further analysis showed that miR395c inhibited biosynthesis of sulfate metabolic products by targeting ATPS genes, which led to the reduction of Abscisic acid (ABA) synthesis and down-regulation of MYB46 expression. Our results indicate that miR395c regulates the secondary xylem development process via sulfate metabolism in Populus.

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Phosphorus influence Cd phytoextraction in Populus stems via modulating xylem development, cell wall Cd storage and antioxidant defense

Cited by 47 publications

References 43 publications

Phosphorus application modulates cadmium toxicity in rice (Oryza sativa L.) by affecting the antioxidant defense system and regulating the expression of iron uptake/transport-related genes

Phosphorus application modulates cadmium toxicity in rice (Oryza sativa L.) by affecting the antioxidant defense system and regulating the expression of iron uptake/transport-related genes

Wheat/faba bean intercropping improves physiological and structural resistance of faba bean to fusaric acid stress

MiR395c Regulates Secondary Xylem Development Through Sulfate Metabolism in Poplar

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