What is new in the research on cadmium‐induced stress in plants?

Azevedo, Ricardo Antunes; Gratão, Priscila Lupino; Monteiro, Carolina Cristina; Carvalho, Rogério Falleiros

doi:10.1002/fes3.10

Cited by 77 publications

(43 citation statements)

References 86 publications

(174 reference statements)

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“…However, among all the environmental stresses, the effect of metal accumulation has been considered one of the most disturbing factors arising in the late 19th and early 20th centuries (Azevedo et al. ). In addition to their essentiality for plant growth and human nutrition, some micronutrients may also be toxic to animals, including humans, at high concentrations (Wang et al.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, coordinated uptake, buffering, translocation, and storage processes regulate metal ion concentrations within narrow physiological limits (Clemens et al 2002;Bhullar and Gruissem 2013). However, among all the environmental stresses, the effect of metal accumulation has been considered one of the most disturbing factors arising in the late 19th and early 20th centuries (Azevedo et al 2012). In addition to their essentiality for plant growth and human nutrition, some micronutrients may also be toxic to animals, including humans, at high concentrations (Wang et al 2008), for example, Cu or Zn.…”

Section: Introductionmentioning

confidence: 99%

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Metallic trace elements in cereal grain – a review: how much metal do we eat?

Teklić

Lončarić

Kovačević

et al. 2013

Food and Energy Security

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Plants are the first step of a metal's pathway from the soil to heterotrophic organisms such as animals and humans, so the content of metallic trace elements in edible parts of a plant represent available load of these metals that may enter the food chain through plants. Among metal elements, Cu, Fe, Mn, and Zn are micronutrients as they are essential in trace amounts for physiological processes in living organisms and therefore are a significant component of the soil-plant-food continuum. Billions of people around the world suffer from micronutrient malnutrition. This review is aimed at giving an overview of the data pertaining to the Fe, Mn, Zn, and Cu content of the grains of the globally most important cereals -wheat, rice, and maize, reported mostly during the last two decades. The prevailing opinions on their importance in the food chain, and current strategies for enrichment of cereal grains with those essential microelements are briefly summarized.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Metallic trace elements in cereal grain – a review: how much metal do we eat?

Teklić

Lončarić

Kovačević

et al. 2013

Food and Energy Security

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“…Despite symptoms of Cd toxicity were related to interactions between the uptake and translocation of nutrients in plant (Rezvani et al 2012), we did not find any visible symptom of Cd toxicity probably because the content of nutrients remained in the normal range. Even though the results on metal-induced plant stress were frequently reported, there is still a need for answering further questions on the factors that modulate the signaling pathways in response to Cd stress (Azevedo et al 2012). Our results, although they are to be tested in open field, provide useful information about the interaction between Cd and essential elements in sunflower plants; as highlighted by Liu et al (2003) the interactions between Cd and other elements may provide clues to explain the nature of Cd accumulation in crops.…”

Section: Resultsmentioning

confidence: 99%

Assessment of cadmium uptake and nutrient content in sunflower plants grown under Cd stress

Rivelli¹,

Puschenreiter²,

Maria³

2014

PLANT SOIL ENVIRON

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Sunflower plants were grown on soil contaminated with several levels of Cd (from 0.3 to 15 mg Cd kg/soil). Cd and nutrient (Cu, Zn, Fe, Ca, K, Mg) contents were evaluated in root and aboveground biomass during the vegetative growth period (from the emergence of the cotyledon leaves to the flower bud phase). An overall increase of Cd content was found in the plants during the growing cycle. Significant interactions were found between Cd contamination levels and phenological stages for Cu, Fe, Ca and Mg content in the whole plant. Cd levels involved significant increases of such nutrients only at the flower bud phase. At this stage, significant interactions between Cd levels in soil and plant portions (root and shoot) were found only for micronutrients (Zn, Cu, Fe). The translocation of micronutrients from root to the shoot was negatively affected by Cd, which probably interferes with the mechanisms of the element transport in the plant. Root stored about 70% of the total Cd and showed greater imbalance in nutrient content compared to the aboveground portion. Cadmium affects plant nutritive status in a different way depending on Cd contamination level, nutrient considered, plant portion and phenological stage.

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“…In plants, cadmium is associated with various metabolic disorders such as nutritional imbalance, photosynthetic apparatus damage, and oxidative stress (Azevedo et al, 2012;Sytar et al, 2012). The sunflower is recognized for its cadmium resistance, tolerance and hyperaccumulation (Cutright et al, 2010;Garcia et al, 2009;Lopes Júnior et al, 2014).…”

Section: Comparative Proteomics Of Helianthus Annuus L By 2-d Digementioning

confidence: 99%