Formula fertilization of nitrogen and potassium fertilizers reduces cadmium accumulation in <i>Panax notoginseng</i>

Shi, Yiting; Pu, Rongfeng; Guo, Lan-Ping; Man, Jinhui; Shang, Bingpeng; Ou, Xiaohong; Dai, Chuan‐Chao; Liu, Pengfei; Cui, Xiuming; Yang, Ye

doi:10.1080/03650340.2019.1616176

Cited by 18 publications

(12 citation statements)

References 22 publications

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“…Such responses (low leaf Cd and no plant growth reduction) are rare among plant species. The growth characteristics of accumulator or hyper accumulator plant species have been also shown to reduce by high Cd levels (Verbruggen et al, 2009;Cheng et al, 2016;Shi et al, 2019;. Our results showed that cadmium and nitrate increased root fresh and dry weights, while it is not the case in other studies.…”

Section: Discussionsupporting

confidence: 38%

“…Despite plant species generally differ in their tolerance to heavy metals and cadmium pollution; however, different strategies have been suggested and applied to reduce heavy metal's bioavailability or to increase plant tolerance to their exposure. Foliar or soil application of some beneficial elements such as silica, potassium, calcium, mycorrhiza and nitrogen forms have been reported to influence plant heavy metal tolerance (Rady et al, 2019;Guo et al, 2019;Konate et al, 2017;Shi et al, 2019). Nitrogen is a mineral macronutrient with profound effects on plant metabolism (Marschner, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Nitrate improves hackberry seedling growth under cadmium application

Hatamian

Nejad

Kafi

et al. 2020

Heliyon

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The environmental toxicity of heavy metals in particular cadmium is a public concern. Cadmium is toxic for all living organisms including plants; however, plant species may show different tolerance to the presence of cadmium in their root medium. Adopting practical strategies may reduce cadmium bioavailability or increase the plant tolerance. In the present study, interaction of nitrate was investigated on cadmium treatment in hackberry (Celtis australis L.) seedlings. Different levels of nitrate (0, 50 and 100 mg/L) and cadmium (0 and 5 mg/L) were applied to seedlings via irrigation water during two consequence years. The treatments were arranged in a factorial with completely randomized design in four replications. The results of ANOVA showed that the cadmium-nitrate interaction was significant on leaf Cd concentration and root dry weight at P ¼ 0.01, and on carotenoids and leaf dry weight at P ¼ 0.05, while it was not significant on the rest of traits. Application of cadmium had no significant effect on new shoot growth, leaf chlorophyll and leaf fresh weight; however, it significantly reduced stomatal water conductance and photosynthesis rate, while it increased leaf transpiration rate, root and stem fresh weights, leaf Cd and proline concentrations. Application of nitrate levels, on the other hand, constantly increased the leaf nitrate concentration, new shoot growth, leaf fresh and dry weights, root fresh weight, stomatal water conductance and photosynthesis rate, whereas it reduced the necrotic points of leaves. The results indicated that the growth characteristics of hackberry seedlings were mainly influenced by nitrate but not cadmium application, and this ornamental tree is a tolerant species to high soil Cd levels.

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Section: Discussionsupporting

confidence: 38%

Section: Introductionmentioning

confidence: 99%

Nitrate improves hackberry seedling growth under cadmium application

Hatamian

Nejad

Kafi

et al. 2020

Heliyon

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“…According to Shi et al (2019), microwave digestion with HNO 3 -H 2 O 2 was used to digest the Cd content in P. notoginseng. Dried sample (0.20 g) was accurately weighed (accurate to 0.0001 g) and placed it in the Teflon dissolving cup.…”

Section: Determination Of CD Contentmentioning

confidence: 99%

“…However, Yunnan Province accounts for 46% of China's Cd production (Liu et al, 2016). Its resulted in exceeding the standard rate by 35% and 23% of P. notoginseng planting soils and medicinal material, respectively (Ou et al, 2016;Shi et al, 2019). The ability to protect P. notoginseng from Cd has drawn considerable attention from consumers and regulatory departments (Lin et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

K Fertilizers Reduce the Accumulation of Cd in Panax notoginseng (Burk.) F.H. by Improving the Quality of the Microbial Community

et al. 2020

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“…On the other hand, nitrogen application, particularly in the form of reduced N, could significantly increase soil heavy metal bioavailability [4,30]. However, it has been reported that application of N-nitrate can significantly reduce heavy metal concentration of plant leaves [9,19]. The region has a dry and hot climate leading to very high evapotranspiration that enhances the negative effects of wastewater irrigation on the soil physiochemical characteristics.…”

Section: Table 2 Heavy Metal Concentrations (Mg Kg −1 Dw) In Root Andmentioning

confidence: 99%

Plant growth stage influences heavy metal accumulation in leafy vegetables of garden cress and sweet basil

Souri

Hatamian

Tesfamariam

2019

Chem. Biol. Technol. Agric.

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Background: Contamination of vegetable crops with heavy metals is a great threat to human health. On the other hand, monitoring plant tissue content of heavy metals at different growth stages could have important implications. In this study, shoot and root samples of garden cress and sweet basil were collected from five farms, from heavy metal polluted fields located in Shahre Rey, south of Tehran, Iran, in either young (3 weeks old) or mature (7 weeks old) plants. The concentrations of cadmium (Cd), lead (Pb), nickel (Ni), arsenic (As), chromium (Cr), cobalt (Co), copper (Cu), manganese (Mn) and zinc (Zn) in plant tissues were determined using atomic absorption spectroscopy. In another study, 2 weeks (young) or 6 weeks old (mature) plants of garden cress were subjected to three concentrations of Cd and Pb (0, 5, 10 mg L −1 ) under hydroponic sand culture for 5 days, in which Hoagland formula was used for nutrient solution preparation. Results:The results showed that root concentration of various heavy metals, particularly Cd, As, Ni, Co, Cu, Mn and Zn but not Pb were significantly higher than their shoot concentration in either crop under field sampling. The leaf concentration of some heavy metals was significantly different in seedling and older (mature) plant samples of either crop. Young plant leaves of sweet basil had significantly less Cd, Pb, As and higher Cu than mature plants, whereas young garden cress plants had similar Cd, Pb and higher As and Zn concentrations than mature plants. The Cr, Co, Mn and Zn concentrations were similar in young and mature plants of sweet basil. The Mn, Co, Cr and Ni concentration of young and mature plants of either crop was also similar. The result of hydroponic study showed that young plants of garden cress had higher potential to accumulate lead in shoot and root, particularly in lower (5 mg L −1 ) than higher (10 mg L −1 ) lead concentration; however, root Pb concentration at 10 mg L −1 Pb of nutrient solution showed no difference between young and mature plants. Regarding cadmium, young garden cress plants accumulated higher Cd than mature plants in their shoot, particularly under higher Cd levels (10 rather than 5 mg L −1 ) of nutrient solution; however, a wide difference in root Cd concentration was observed under low (5 mg L −1 ) than higher (10 mg L −1 ) cadmium concentration of nutrient solution. Conclusion:The results of these two studies indicate that despite that young plants have a higher potential for heavy metal uptake and accumulation, the low difference in young and mature plants in the polluted fields may be due to the longer period of plant growth of mature plants that may increase the risk of exposure to polluted air and dust deposition containing high levels of heavy metals.

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Formula fertilization of nitrogen and potassium fertilizers reduces cadmium accumulation in Panax notoginseng

Cited by 18 publications

References 22 publications

Nitrate improves hackberry seedling growth under cadmium application

Nitrate improves hackberry seedling growth under cadmium application

K Fertilizers Reduce the Accumulation of Cd in Panax notoginseng (Burk.) F.H. by Improving the Quality of the Microbial Community

Plant growth stage influences heavy metal accumulation in leafy vegetables of garden cress and sweet basil

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