Physiological, biochemical and transcriptomic responses of Medicago sativa to nickel exposure

Helaoui, Sondes; Boughattas, Iteb; Hattab, Sabrine; Mkhinini, Marouane; Alphonse, Vanessa; Livet, Alexandre; Bousserrhıne, Noureddine; Bannı, Mohamed

doi:10.1016/j.chemosphere.2020.126121

Cited by 57 publications

(26 citation statements)

References 89 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This enzyme is defined as a biomarker of contamination by the ETM [Hou et al, 2019]. The increase in the GST activity, in response to metallic stress, has been previously reported in the colza plants exposed to different concentrations of zinc [Wang et al, 2009], in Hedysarum pallidum in the presence of antimony [Benhamdi et al, 2014], in Medicago sativa exposed to Ni [Helaoui et al, 2020] and in Cichorium intybus L in presence of Pb and Al [Malik et al, 2021]. The POD which reduces H 2 O 2 using several reductants of phenolic compounds [Lamhamdi et al, 2011] is one of the antioxidant enzymes involved in scavenging ROS in plants [Lin et al, 2016;Jośko et al, 2021], it participates in several biological processes such as cell formation, auxin catabolism, lignifications, defense against stress, etc.…”

Section: Discussionmentioning

confidence: 81%

“…Whereby, the results of the GST activity, in the upper parts, are similar to those of CAT. The GST, which plays a key role in cellular protection against heavy metals and ROS [Park et al, 2020;Helaoui et al, 2020] is responsible for the detoxification of xenobiotic and endobiotic compounds [Ahmadi et al, 2021] by covalent binding of glutathione (GSH) to a hydrophobic substrate and consequently, a less reactive conjugate glutathione S-R is formed [Mohsenzadeh et al, 2009]. This enzyme is defined as a biomarker of contamination by the ETM [Hou et al, 2019].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Zinc on the Growth and the Antioxidant System of <i>Lens Culinaris</i> Cultivated on Agar Medium

Benhamdi¹,

Kandouli²,

Cherfia³

et al. 2021

J. Ecol. Eng.

View full text Add to dashboard Cite

This study aimed to analyze the impact of Zn on the growth and the antioxidant response of Lens culinaris. For this purpose, the seeds were germinated for 6 days in an MS/2 culture medium with different Zn concentrations. Malondialdehyde (MDA), total protein contents, and antioxidant enzymes activities were measured in both parts of the plant by spectrometry. The results showed that from the Zn concentration of 250 µM, the growth of lentils is inversely proportional to the concentration of Zn in the culture medium. The variations in the level of MDA are not very significant, but at 10 000 μM of Zn in the medium, the level becomes very important, whilst the total protein content decreased. Besides, the evaluation of enzymatic activities indicated that the decline of peroxidase (POD) is concomitant with the increase in glutathione peroxidase (GPx) and that glutathione S-transferase (GST), as well as catalase (CAT) reach their maximum activities at 10 000 µM and 3000 µM of Zn in upper parts and roots, respectively. These findings revealed that MDA is a real indicator of oxidative stress in Lens culinaris and that this plant is tolerant to the presence of Zn in the culture medium by developing a powerful antioxidant system, but beyond a certain concentration its antioxidant system becomes ineffective and the plant enters a stress state.

show abstract

Section: Discussionmentioning

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Effect of Zinc on the Growth and the Antioxidant System of <i>Lens Culinaris</i> Cultivated on Agar Medium

Benhamdi¹,

Kandouli²,

Cherfia³

et al. 2021

J. Ecol. Eng.

View full text Add to dashboard Cite

show abstract

“…[ 28 ] Beneficial effects of lower Ni levels on the growth of different plant species have been reported by several researchers. [ 29–32 ] Higher Ni level might decrease SDW due to decrease in the enzyme synthesis associated with decreased microbial activity. High Ni can also inhibit enzymes directly by masking of active groups, denaturing proteins, or changing configuration of enzymes.…”

Section: Resultsmentioning

confidence: 99%

“…A decrease in greenness index [41] in leaves of Ni-stressed plants could be due to interrupted synthesis of pigments and degradation of chlorophyll. [30] Several researchers have reported the decrease in greenness index due to metal toxicity in plants. [42,43] Other researchers had reported reduction in greenness index and interruption of electron transport due to Ni toxicity in several studies.…”

Section: Ksk-133mentioning

confidence: 99%

See 1 more Smart Citation

Comparison of Fine and Coarse Rice Varieties for Nickel Accumulation and Growth Response at Different Levels of Nickel

Fatma

Ṣābir

Aziz

et al. 2021

CLEAN Soil Air Water

View full text Add to dashboard Cite

The differential growth response and nickel (Ni) accumulation by two rice varieties grown in Ni-contaminated soil are investigated. Soil is contaminated with Ni at different levels viz. control (0), 7, 15, 22, 30, and 38 mg kg −1 soil. Two rice varieties viz. Basmati-2000 (fine variety) and KSK-133 (coarse variety) are grown in pots containing Ni-contaminated soil. The plants are harvested at four growth stages with an interval of 15 days. Harvested plants are washed with distilled water to remove aerial deposition. Harvested plants are oven-dried, weighed, grinded, and digested with di-acid mixture. The digested samples are analyzed for Ni, zinc (Zn), and manganese (Mn) concentration. The results indicate that the maximum level of Ni (38 mg kg −1 ) inhibits the shoot and root growth. The maximum shoot and root dry weights are observed at lower level of Ni, that is, 7 mg kg −1 . The concentration of Ni in plants increases with increasing Ni levels compared to control while the concentration of Zn and Mn decreases with increasing Ni levels. The maximum concentrations of all elements are recorded at the first harvest which gradually decrease in the subsequent harvests. It is concluded that Basmati-2000 is tolerant to Ni toxicity compared to KSK-133.

show abstract

Plant Response and Tolerance to Heavy Metal Toxicity

Mahawar,

Pandey,

Pandey

et al. 2023

Heavy Metal Toxicity and Tolerance in Plants

View full text Add to dashboard Cite

Physiological, biochemical and transcriptomic responses of Medicago sativa to nickel exposure

Cited by 57 publications

References 89 publications

Effect of Zinc on the Growth and the Antioxidant System of <i>Lens Culinaris</i> Cultivated on Agar Medium

Effect of Zinc on the Growth and the Antioxidant System of <i>Lens Culinaris</i> Cultivated on Agar Medium

Comparison of Fine and Coarse Rice Varieties for Nickel Accumulation and Growth Response at Different Levels of Nickel

Plant Response and Tolerance to Heavy Metal Toxicity

Contact Info

Product

Resources

About