Recent progress in understanding cadmium toxicity and tolerance in rice

Fasahat, Parviz

doi:10.9755/ejfa.v27i1.17870

Cited by 19 publications

(3 citation statements)

References 82 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Cd is not needed for plant growth and development but is more likely to accumulate in plants than other heavy metals [3]. Evidence suggests that a high concentration of Cd in soil affects the growth and development of plants through physiological and biochemical processes, including inhibition of plant enzyme and membrane activity [4], decreased cell division [5], reduced growth rate [6], damaged photosynthesis [7], inhibition of stomatal opening [8], and promotion of lipid peroxidation [9]. Cd bioaccumulates and in humans can cause diseases such as osteoporosis, anemia, hypertension, and kidney damage.…”

Section: Introductionmentioning

confidence: 99%

Selenium Modulates the Level of Auxin to Alleviate the Toxicity of Cadmium in Tobacco

Luo

Wei

Sun

et al. 2019

IJMS

View full text Add to dashboard Cite

Cadmium (Cd) is an environmental pollutant that potentially threatens human health worldwide. Developing approaches for efficiently treating environmental Cd is a priority. Selenium (Se) plays important role in the protection of plants against various abiotic stresses, including heavy metals. Previous research has shown that Se can alleviate Cd toxicity, but the molecular mechanism is still not clear. In this study, we explore the function of auxin and phosphate (P) in tobacco (Nicotiana tabacum), with particular focus on their interaction with Se and Cd. Under Cd stress conditions, low Se (10 μM) significantly increased the biomass and antioxidant capacity of tobacco plants and reduced uptake of Cd. We also measured the auxin concentration and expression of auxin-relative genes in tobacco and found that plants treated with low Se (10 μM) had higher auxin concentrations at different Cd supply levels (0 μM, 20 μM, 50 μM) compared with no Se treatment, probably due to increased expression of auxin synthesis genes and auxin efflux carriers. Overexpression of a high affinity phosphate transporter NtPT2 enhanced the tolerance of tobacco to Cd stress, possibly by increasing the total P and Se content and decreasing Cd accumulation compared to that in the wild type (WT). Our results show that there is an interactive mechanism among P, Se, Cd, and auxin that affects plant growth and may provide a new approach for relieving Cd toxicity in plants.

show abstract

Section: Introductionmentioning

confidence: 99%

Selenium Modulates the Level of Auxin to Alleviate the Toxicity of Cadmium in Tobacco

Luo

Wei

Sun

et al. 2019

IJMS

View full text Add to dashboard Cite

show abstract

“…Research data from the Country Resource Department of China in 2009 showed that more than 10% of plantation land had been contaminated by toxic metals. Crops harvested from the contaminated soil contain excess toxic metals which may subsequently enter the human body through food chain, resulting in serious human health concerns (JAISHANKAR et al, 2014.;FASAHAT, 2014.;REN et al, 2003). Cadmium (Cd) is one of the toxic metals which threatened both environment and human health.…”

Section: Introductionmentioning

confidence: 99%

Soil cadmium extraction in Chinese cabbage and cabbage intercropping

et al. 2019

View full text Add to dashboard Cite

Toxic metals contamination of soil has become a serious problem in recent years. In this study, Chinese cabbage (a relatively high-accumulator of cadmium (Cd)) and cabbage (a relatively low-accumulator of Cd) were cultured in monoculture and in intercropping in the Cd-contaminated soil, to evaluate the effect of intercropping on the alteration of Cd extraction. Both the pot experiments and field experiments indicated that intercropping increased the Cd extraction by Chinese cabbage and decreased the Cd extraction by cabbage. Thus, Cd extraction was advanced while safe production was obtained. Further pot experiment was conducted to investigate the alterations of soil Cd fractions, soil pH, and soil enzyme activities to reveal their possible relationship with Cd extraction between different planting patterns. Results revealed that three individual Chinese cabbages in one intercropping pot played the same effect on alteration of these factors as six individual Chinese cabbages in one monoculture pot. The intercropping increased Cd extraction by Chinese cabbage and decreased Cd extraction by cabbage, probably by influencing mechanisms such as soil enzyme activities (especially the urease activity) in the cultivation system. Effect of intercropping on Cd accumulation is an important issue in cultivation of vegetables in potentially contaminated land.

show abstract

“…chồi cây có tương quan thuận với sinh khả dụng của kim loại nặng trong đất14,15 . Khi nồng độ Cd tăng cao trong cải thìa, Cd can thiệp vào các quá trình logic vật lý của chúng, ví dụ như quang hợp và hô hấp, dẫn đến cải thìa chậm phát triển, đặc biệt là đất có nồng độ Cd vượt tiêu chuẩn (3 mg/kg và 6 mg/kg)16,17 . Khối lượng khô của thân và rễ cây cải thìa giảm 11,1% và 16,7% ở nồng độ Cd cao (6 mg/kg), so với nghiệm thức đối chứng (Bảng 2).…”

unclassified

The effect of agricultural waste inhibit the uptake of Cadmium (Cd) by pak choi in assumption conditions of contaminated soil

Luong,

Tran

2023

Sci. Tech. Dev. J. - Sci. Earth Environ.

View full text Add to dashboard Cite

This study aimed to explore the effects of agricultural waste (rice straw-RS and maize stalks-MS) in reducing Cd toxicity. Experiments in the study determined: growth of pak choi, total Cd concentration in the plant and the change in distribution of Cd fraction in the soil. Results showed that: agricultural waste application may detoxify Cd at excessive concentrations (3 and 6 mg/kg) by transforming mobile Cd fractions (EXC-Cd and CAB-Cd) into semi-mobile and non-mobile Cd fractions (FEM-Cd, OM-Cd, and RES-Cd); the Cd concentrations in pak choi decreased and pak choi growth increased. However, a significant reduction in Cd concentration can only occur when agricultural waste application is at an appropriate content (20 g/kg). In addition, agricultural waste application promoted the growth of pak choi at lower content (10 g/kg). Furthermore, this study also showed a good correlation between the ratio of mobile Cd fractions (EXC-Cd and CAB-Cd) with Cd concentration in pak choi and plant growth. This study suggested that agricultural waste application, especially rice straw, plays an important role in preventing Cd uptake by plant tissues at excessive concentrations through transformations into immobile Cd fractions.

show abstract

Recent progress in understanding cadmium toxicity and tolerance in rice

Cited by 19 publications

References 82 publications

Selenium Modulates the Level of Auxin to Alleviate the Toxicity of Cadmium in Tobacco

Selenium Modulates the Level of Auxin to Alleviate the Toxicity of Cadmium in Tobacco

Soil cadmium extraction in Chinese cabbage and cabbage intercropping

The effect of agricultural waste inhibit the uptake of Cadmium (Cd) by pak choi in assumption conditions of contaminated soil

Contact Info

Product

Resources

About