Characteristics of cadmium tolerance in ‘Hermes’ flax seedlings: Contribution of cell walls

Douchiche, Olfa; Soret-Morvan, Odile; Chaïbi, Wided; Morvan, Claudine; Paynel, Florence

doi:10.1016/j.chemosphere.2010.09.011

Cited by 48 publications

(26 citation statements)

References 35 publications

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“…Numerous studies have shown that Cd bioaccumulation lead to the oxidation of proteins in plant tissues (Romero-Puertas et al, 2002, Djebali et al, 2008, Douchiche et al, 2010, which is in agreement with our present findings (Fig. 2E).…”

Section: Discussionsupporting

confidence: 83%

“…The oxidative stress induced by Cd can also be correlated with damage to membrane lipids (Djebali et al, 2005;Belkhadi et al, 2010), nucleic acids (Apel andHirt, 2004, Gichner et al, 2004) and proteins (Djebali et al, 2008, Douchiche et al, 2010. In response to reactive oxygen species (ROS), plants can induce a succession of detoxification reactions catalyzed by antioxidative enzymes (Gratã o et al, 2012).…”

mentioning

confidence: 99%

“…Cadmium (Cd) stress may disturb plant nutrient balance (Belkhadi et al, 2010, Douchiche et al, 2010, inhibit growth (Hédiji et al, 2010, Gallego et al, 2012, and generate oxidative stress (Tamás et al, 2007). It is well known that Cd is a non-redox-active metal that does not trigger the direct formation of hydroxyl radicals (OH . )…”

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confidence: 99%

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Salicylic Acid Improves Root Antioxidant Defense System and Total Antioxidant Capacities of Flax Subjected to Cadmium

Belkadhi

Haro

Soengas

et al. 2013

OMICS: A Journal of Integrative Biology

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Section: Discussionsupporting

confidence: 83%

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confidence: 99%

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Salicylic Acid Improves Root Antioxidant Defense System and Total Antioxidant Capacities of Flax Subjected to Cadmium

Belkadhi

Haro

Soengas

et al. 2013

OMICS: A Journal of Integrative Biology

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“…These results indicated that most of Cd was binding to the cell walls. Binding of heavy metal ions onto cell walls is a common and effective way to prevent heavy metal ions from entering the cell (Bellion et al 2006;Douchiche et al 2010). The presence of Cd mainly in the cell walls was a general subcellular distribution pattern in different fungi, such as Pisolithus arrhizus (Turnau et al 1994), Oidiodendron maius (Bardi et al 1999), Neurospora crassa (Bhanoori and Venkateswerlu 2000), Paxillus involutus (Blaudez et al 2000), Glomus intraradices a b Fig.…”

Section: Discussionmentioning

confidence: 98%

Subcellular distribution and chemical forms of cadmium in a dark septate endophyte (DSE), Exophiala pisciphila

Zhan

et al. 2015

Environ Sci Pollut Res

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Our objective was to understand the cadmium (Cd) tolerance mechanisms by investigating the subcellular distribution, chemical forms of Cd and adsorptive groups in the mycelia of Exophiala pisciphila. We grew E. pisciphila in the liquid media with increasing Cd concentrations (0, 25, 50, 100, 200, and 400 mg L(-1)). Increased Cd in the media caused a proportional increase in the Cd uptake by E. pisciphila. Subcellular distribution indicated that 81 to 97% of Cd was associated with the cell walls. The largest amount and proportion (45-86%) of Cd was extracted with 2% acetic acid, and a concentration-dependent extraction was observed, both of which suggest that Cd-phosphate complexes were the major chemical form in E. pisciphila. A large distribution of phosphate and Cd on the mycelia surface was observed by scanning electron microscopy-energy dispersive spectrometer (SEM-EDS). The precipitates associated with the mycelia were observed to contain Cd by transmission electron microscopy-energy dispersive X-ray spectroscopy (TEM-EDX). Fourier transform infrared (FTIR) identified that hydroxyl, amine, carboxyl, and phosphate groups were responsible for binding Cd. We conclude that Cd associated with cell walls and integrated with phosphate might be responsible for the tolerance of E. pisciphila to Cd.

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“…Free radicals can damage intracellular macromolecules, resulting in membrane lipid peroxidation (Srivastava et al, 2007;Douchiche et al 2010;Zhang et al, 2013). Antioxidant systems can help plants withstand harmful effects of environmental stress (Formigari et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Eucalyptus tolerance mechanisms to lanthanum and cerium: Subcellular distribution, antioxidant system and thiol pools

Shen

Zhang

et al. 2014

Chemosphere

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Characteristics of cadmium tolerance in ‘Hermes’ flax seedlings: Contribution of cell walls

Cited by 48 publications

References 35 publications

Salicylic Acid Improves Root Antioxidant Defense System and Total Antioxidant Capacities of Flax Subjected to Cadmium

Salicylic Acid Improves Root Antioxidant Defense System and Total Antioxidant Capacities of Flax Subjected to Cadmium

Subcellular distribution and chemical forms of cadmium in a dark septate endophyte (DSE), Exophiala pisciphila

Eucalyptus tolerance mechanisms to lanthanum and cerium: Subcellular distribution, antioxidant system and thiol pools

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