Response of Rice Inbred Lines to Cadmium Exposure

Cardoso, Patrícia Felipe; Molina, Silvia; Pereira, Guilherme Caldeira Quintino; Vitória, Ângela Pierre; Azevedo, Ricardo Antunes

doi:10.1081/pln-120003929

Cited by 16 publications

(8 citation statements)

References 32 publications

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“…Significant variability in Cd tolerance was found among cultivars of rice (Cardoso et al 2002;Hsu and Kao 2003) and pea (Belimov et al 2003;Metwally et al 2005), ecotypes of Silene vulgaris (De Knecht et al 1995), Cistus ladanifer (Kidd et al 2004) and Salix viminalis (Lindberg and Greger 2002). However, intraspecific variability in tolerance to Cd and other HMs in Indian mustard received little attention.…”

Section: Introductionmentioning

confidence: 95%

Intraspecific variability of cadmium tolerance in hydroponically grown Indian mustard (Brassica juncea (L.) Czern.) seedlings

et al. 2007

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Indian mustard (Brassica juncea (L.) Czern.) is a promising plant species for phytoremediation of heavy metal polluted soils. However, genetic variability of metal tolerance in Indian mustard has not been studied. We evaluated intraspecific variation of Cd tolerance of this species by screening 64 varieties in hydroponics. The tolerance index (TI), calculated as percentage of root length of Cd-treated (7 lM CdCl 2 ) over untreated control seedlings, significantly varied from 34 to 79%, depending on the variety. Information about phenotypic and economic traits of the studied varieties was taken from the literature and subjected to a cluster analysis. The varieties were distributed into three clusters and most of the varieties characterized by the highest TI values (TI > 65%) were grouped together in one cluster. Moreover, TI negatively correlated with the following characteristics: yellow seed colour (R = -0.35, P = 0.005), total oil content (R = -0.33, P = 0.008), oleic acid (R = -0.25, P = 0.047) and linoleic acid (R = -0.36, P = 0.004) contents in seeds. The results showed the presence of significant variability for Cd tolerance in Indian mustard. The knowledge about correlations between Cd tolerance and phenotypic characteristics of plants might be utilized for rapid selection of cultivars to be used for phytoremediation of polluted soils.

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Section: Introductionmentioning

confidence: 95%

Intraspecific variability of cadmium tolerance in hydroponically grown Indian mustard (Brassica juncea (L.) Czern.) seedlings

et al. 2007

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“…Some metal ions, like copper (II), are essential for life, but other metals like cadmium (II) are considered highly toxic elements to nearly all organisms even at low concentrations (Cardoso et al . 2002; Guelfi et al .…”

Section: Introductionmentioning

confidence: 99%

Cd (II) stress response during the growth of Aspergillus niger B 77

et al. 2007

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Aims: To investigate the relationship between growth, heavy metal ions uptake and participation of the antioxidant enzymes superoxide dismutase (SOD) and catalase (CAT) in the protection of Apergillus niger B 77 against cadmium stress. Methods and Results: The stress response of the model fungal strain, under conditions of a wide range of Cd (II) ion concentrations, was investigated by determining the biomass formation, protein biosynthesis, SOD and CAT activities and heavy metal uptake in growing cells. Exposure to heavy metal ions induced an increase in protein content, heavy metal uptake and SOD activity, and a heavy decrease in CAT activity. Conclusion: The results obtained indicated that the tolerance of A. niger to Cd (II) was correlated with the heavy metal uptake, reactive oxygen species generation in the cells and the efficiency of antioxidative defence system. Significance and Impact of the Study: Evidence is provided for the possibility that oxidative stress plays a major role in the effect of Cd (II) ions on A. niger. These data could offer useful information when creating new strategies and methodological improvements for bioremediation with the participation of fungi.

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“…Tolerance to and accumulation of HMs in plants are genetically determined and significant polymorphism of these traits exists on a species level governing intraspecific variations between varieties and populations (McLaughlin et al 1997;Lindberg and Greger 2002). Particularly, considerable variability in Cd tolerance was found among varieties of pea (Belimov et al 2003a) and Indian mustard ), cultivars of rice (Cardoso et al 2002), ecotypes of Cistus ladanifer (Kidd et al 2004) and clones of various willow species, including Salix viminalis, Salix caprea, Salix fragilis, Salix purpurea and Populus nigra (Dos Santos Utmazian et al 2007a;Lindberg and Greger 2002;Puschenreiter et al 2010). However, little is known how variability of these traits may be involved and affect interactions of plants with microbes in the presence of elevated cadmium concentrations.…”

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confidence: 97%

Role of Plant Genotype and Soil Conditions in Symbiotic Plant-Microbe Interactions for Adaptation of Plants to Cadmium-Polluted Soils

Belimov

Puhalsky

Safronova

et al. 2015

Water Air Soil Pollut

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We highlighted some of the key problems associated with the use of beneficial microorganisms for improving adaptation of plants to soils, polluted with heavy metals (HMs), especially Cd. Inoculation of pea line SGE and its Cd-tolerant mutant SGECd t with nodule bacteria Rhizobium leguminosarum bv. viciae demonstrated that nodulation process may be disturbed at Cd concentrations below threshold toxicity levels for each partner and the plant genotype plays a major role in nodulation under Cd stress. A comparative mathematical analysis of available information about Cd tolerance, accumulation of HMs (Cd, Cr, Cu, Ni, Pb, Sr and Zn), response to mycorrhizal fungus Glomus sp. and 15 phenotypic traits of 99 pea varieties revealed that (1) the Cd-sensitive varieties were more efficient in exploring the protective potential of symbiosis to compensate their deficit in Cd tolerance and (2) correlations between the studied traits exist and can be helpful for selection of plant-microbe systems adapted to polluted soils. In pot experiment with 11 varieties of Indian mustard, the plant growth-promoting effect of rhizobacterium Variovorax paradoxus 5C-2 negatively correlated with Cd tolerance and shoot Cd concentration of the plants grown in Cd-supplemented soil. In an outdoor pot experiment, inoculation of willow with the ectomycorrhizal fungus Pisolithus tinctorius and a cocktail of rhizobacteria stimulated root exudation, decreased soil pH and increased Cd mobilization in soil and Cd uptake by plants, but decreased plant growth at a moderate contamination level (25 mg Cd kg −1 ). Opposite effects were observed in highly contaminated soil (77 mg Cd kg −1 ). We propose a preliminary systematic framework of interactions between these factors that determine the success of microbial inoculation aimed at improving crop performance on HM-polluted soils or enhancing phytoremediation.

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Response of Rice Inbred Lines to Cadmium Exposure

Cited by 16 publications

References 32 publications

Intraspecific variability of cadmium tolerance in hydroponically grown Indian mustard (Brassica juncea (L.) Czern.) seedlings

Intraspecific variability of cadmium tolerance in hydroponically grown Indian mustard (Brassica juncea (L.) Czern.) seedlings

Cd (II) stress response during the growth of Aspergillus niger B 77

Role of Plant Genotype and Soil Conditions in Symbiotic Plant-Microbe Interactions for Adaptation of Plants to Cadmium-Polluted Soils

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