Effects of Heavy Metal Contamination from an Abandoned Mine on Tomato Growth and Root-knot Nematode Development

Park, Byeong Yong; Lee, Jae Kook; Ro, Hee‐Myong; Kim, Young Ho

doi:10.5423/ppj.2011.27.3.266

Cited by 4 publications

(5 citation statements)

References 22 publications

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“…Compared to tomato grown in uncontaminated soil (Control), biomass accumulation in root, shoot and leaf was significantly decreased for tomato grown in heavy metals-contaminated soil without application of amendment (HMS) (Fig. 6), which is consistent with previous study [38]. Compared to natural palygorskite (PAL), the application of its modified form (KH550-PAL) significantly improved biomass accumulation of root, shoot and leaf in tomato grown in heavy metals-contaminated soil with Pb, Cd and Zn (Fig.…”

Section: Biomass Accumulation In Root Shoot and Leafsupporting

confidence: 91%

Differential Effects of Natural Palygorskite and its Modified Form on Alleviation of Heavy Metals Toxicity to Tomato Grown in Soil Contaminated with Cd, Pb and Zn

Li¹,

Lei²,

Chen³

2019

Pol. J. Environ. Stud.

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A field experiment was conducted to investigate differential effects of natural palygorskite (PAL) and its modified form (KH550-PAL) on the alleviation of heavy metals toxicity to tomatos grown in contaminated soil with Cd, Pb and Zn. Compared to heavy metal-contaminated soil without amendment, the application of natural palygorskite (PAL) or its modified form (KH550-PAL) significantly alleviated heavy metal toxicity to tomato. In addition, foliar malondialdehyde (MDA), hydrogen peroxide (H 2 O 2) and superoxide (O 2 •-) contents as well as non-photochemical quenching (NPQ) reduced by 89, 28, 71, and 81%, respectively, in the modified palygorskite treatment than in the natural palygorskite treatment. Similar patterns were observed in heavy metals uptake of tomato. Foliar superoxide dismutase (SOD), catalase (CAT) and glutathione reductase (GR) activities increased by 228, 196 and 238%, respectively, in the modified palygorskite treatment than in the natural palygorskite treatment. Thus, the application of the modified form (KH550-PAL) significantly ameliorated the oxidative stress via enhancing antioxidant defense and reducing thermal dissipation, which further improved photosynthetic electron transport of photosystem II and biomass accumulation of tomato. However, the dose of the modified palygorskite (KH550-PAL) was not enough to buffer negative effects of heavy metal toxicity to tomato growth in the experiment. It is suggested that the amendment dose should be used with great care in remediating contaminated soils with heavy metals. Thus, further experiments are needed by different rates of the modified palygorskite (KH550-PAL).

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Section: Biomass Accumulation In Root Shoot and Leafsupporting

confidence: 91%

Differential Effects of Natural Palygorskite and its Modified Form on Alleviation of Heavy Metals Toxicity to Tomato Grown in Soil Contaminated with Cd, Pb and Zn

Li¹,

Lei²,

Chen³

2019

Pol. J. Environ. Stud.

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“…This suggests that when waters draining from abandoned mines contain low levels of heavy metals, especially Cd and Pb, the total accumulations will not exceed MHMRC in agricultural soils irrigated by these waters within several months. In our experiment, even under conditions in which heavy metal accumulation in soil exceeded MHMRC, no symptoms or damages from heavy metal toxicity were observed on the tomato plants, which is in contrast to severe damages observed in tomato plants grown in soil contaminated with high concentrations of heavy metals ( Park et al, 2011b ). This suggests it is difficult to detect any visible adverse short-term effects of heavy metal contamination at low levels on physiological disorders caused by heavy metals.…”

Section: Discussioncontrasting

confidence: 80%

“…Decreases in nematode community abundance and richness resulting from heavy metal contamination have been reported in many studies ( Georgieva et al, 2002 ; Korthals et al, 1996a , 1996b ; Park et al, 2011b ; Popovici, 1994 ; Yeates et al, 1993 ). However, only abundance of sensitive nematode species is reduced in the soils exposed to light to moderate heavy metal contamination, while the abundance of tolerant species is not changed or increased in these soils ( Korthals et al, 1996a , 1996b ).…”

Section: Discussionmentioning

confidence: 88%

Short-Term Effects of Low-Level Heavy Metal Contamination on Soil Health Analyzed by Nematode Community Structure

Park

Lee

et al. 2016

The Plant Pathology Journal

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The short-term effects of low-level contamination by heavy metals (As, Cd, Cu, and Pb) on the soil health were examined by analyzing soil nematode community in soils planted with tomatoes. For this, the soils were irrigated with five metal concentrations ([1, 1/4, 1/42, 1/43, and 0] × maximum concentrations [MC] detected in irrigation waters near abandoned mine sites) for 18 weeks. Heavy metal concentrations were significantly increased in soils irrigated with MC of heavy metals, among which As and Cu exceeded the maximum heavy metal residue contents of soil approved in Korea. In no heavy metal treatment controls, nematode abundances for all trophic groups (except omnivorous-predatory nematodes [OP]) and colonizer-persister (cp) values (except cp-4–5) were significantly increased, and all maturity indices (except maturity index [MI] of plant-parasitic nematodes) and structure index (SI) were significantly decreased, suggesting the soil environments might have been disturbed during 18 weeks of tomato growth. There were no concentration-dependent significant decreases in richness, abundance, or MI for most heavy metals; however, their significant decreases occurred in abundance and richness of OP and cp-4, MI2–5 (excluding cp-1) and SI, indicating disturbed soil ecosystems, at the higher concentrations (MC and MC/4) of Pb that had the most significant negative correlation coefficients for heavy metal concentrations and nematode community among the heavy metals. Therefore, the short-term effects of low-level heavy metal contamination on soil health can be analyzed by nematode community structures before the appearance of plant damages caused by the abiotic agents, heavy metals.

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“…The decrease of nematode abundance induced by selenite ( Figure 2B ) and a negative correlation between nematode abundance and soil bioavailable Se ( p < 0.01) ( Figure 5 ) were observed. Similarly, high concentrations of trace elements in agricultural soils, such as As, Zn, Cu, and Ni, have been reported to decrease nematode abundance in previous studies (Korthals et al, 1996 ; Park et al, 2011 ). The decreased nematode abundance may be achieved through two mechanisms.…”

Section: Discussionmentioning

confidence: 60%

Selenium Effect Threshold for Soil Nematodes Under Rice Biofortification

et al. 2022

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Crop biofortification with inorganic selenium (Se) fertilizer is a feasible strategy to improve the health of residents in Se-deficient areas. For eco-friendly crop Se biofortification, a comprehensive understanding of the effects of Se on crop and soil nematodes is vital. In this study, a rice pot experiment was carried out to test how selenite supply (untreated control (0), 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 100, or 200 mg Se kg−1) in soil affected rice growth, rice Se accumulation, and soil nematode abundance and composition. The results showed that selenite supply (5–200 mg kg−1) generally increased the number of rice tillers, rice yield, and Se concentrations in rice grains. In soil under 10 mg kg−1 Se treatment, the genus composition of nematodes changed significantly compared with that in the control soil. With increased Se level (> 10 mg kg−1), soil nematode abundance decreased significantly. Correlation analysis also demonstrated the positive relationships between soil Se concentrations (total Se and bioavailable Se) with rice plant parameters (number of rice tillers, rice yield, and grain Se concentration) and negative relationships between soil Se concentrations (total Se and bioavailable Se) with soil nematode indexes (nematode abundance and relative abundance of Tobrilus). This study provides insight into balancing Se biofortification of rice and soil nematode community protection and suggests the effective concentrations for total Se (1.45 mg kg−1) and bioavailable Se (0.21 mg kg−1) to soil nematode abundances at 20% level (EC20) as soil Se thresholds. At Se concentrations below these thresholds, rice plant growth and Se accumulation in the grain will still be promoted, but the disturbance of the soil nematodes would be negligible.

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Effects of Heavy Metal Contamination from an Abandoned Mine on Tomato Growth and Root-knot Nematode Development

Cited by 4 publications

References 22 publications

Differential Effects of Natural Palygorskite and its Modified Form on Alleviation of Heavy Metals Toxicity to Tomato Grown in Soil Contaminated with Cd, Pb and Zn

Differential Effects of Natural Palygorskite and its Modified Form on Alleviation of Heavy Metals Toxicity to Tomato Grown in Soil Contaminated with Cd, Pb and Zn

Short-Term Effects of Low-Level Heavy Metal Contamination on Soil Health Analyzed by Nematode Community Structure

Selenium Effect Threshold for Soil Nematodes Under Rice Biofortification

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