Symplastic and apoplastic uptake and root to shoot translocation of nickel in wheat as affected by exogenous amino acids

Dalir, Neda; Khoshgoftarmanesh, Amir Hossein

doi:10.1016/j.jplph.2013.12.011

Cited by 31 publications

(8 citation statements)

References 43 publications

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“…The fertilizer management programs containing amino acids (AOF and BF) significantly (P < 0.05) enhanced soil EC and decreased NH 4 -N compared to the fertilizer management programs containing no amino acids (CF and OF). Amino acids can form complexes with cations via carboxylate (−COO) and amine (−NH 2 ) groups (Dalir and Khoshgoftarmanesh 2014) and might be the reason for the enhancement of soil EC. Yadessa et al (2010) also found that there were significantly (P < 0.01) negative correlations between tomato bacterial wilt disease incidence and EC.…”

Section: Discussionmentioning

confidence: 99%

Continuous application of different organic additives can suppress tomato disease by inducing the healthy rhizospheric microbiota through alterations to the bulk soil microflora

et al. 2017

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Section: Discussionmentioning

confidence: 99%

Continuous application of different organic additives can suppress tomato disease by inducing the healthy rhizospheric microbiota through alterations to the bulk soil microflora

et al. 2017

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“…The increase in antioxidant enzyme activity at increasing Ni concentrations in the nutrient solution was less pronounced in shoots than in roots, probably due to decreased long-distance transportation and Ni accumulation in shoots at the time of evaluation. In wheat, after a 48-h exposure to Ni in the nutrient solution, only 35% of the total Ni taken by plants was translocated to the shoots (Dalir and Khoshgoftarmanesh, 2014). However, the increasing Ni supplies were sufficient to induce an increase in root antioxidant enzyme activity of up to fourfold relative to control plants (Fig.…”

Section: Antioxidant Enzymesmentioning

confidence: 97%

A glimpse into the physiological, biochemical and nutritional status of soybean plants under Ni-stress conditions

Reis

Barcelos

Osório

et al. 2017

Environmental and Experimental Botany

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Nickel (Ni) toxicity has been reported to decrease productivity in soybean (Glycine max L.). However, soybean responses to Ni toxicity are not well understood. The aim of the present study was to describe Ni toxicity in soybean plants through physiological, nutritional, and ultrastructural analyses. Plants were grown in nutrient solution containing increasing Ni concentrations (0, 0.05, 0.1, 0.5, 10, and 20 μmol L −1), and nutritional, anatomical, physiological and biochemical features were determined. The results revealed previously unreported detrimental effects of Ni toxicity on soybean plants. CO 2 assimilation rates, stomatal conductance and transpiration decreased, resulting in lower biomass in soybean plants exposed to the highest Ni levels. Nitrate reductase activity increased with up to 0.05 μmol L −1 Ni and then decreased, indicating halted N-metabolism. Urease activity increased with increasing Ni availability in the nutrient solution, and peroxidase and superoxide dismutase activities were higher in plants grown at higher Ni levels. Leaf epidermal thickness (abaxial and adaxial), as well as root xylem and phloem diameter, decreased starting at 0.1 μmol L −1 Ni. Mean Ni concentrations varied from 77.5 to 17,797.4 mg kg −1 in roots and 2.3 to 16,774.5 mg kg −1 in shoots. Soybean plants exhibited symptoms of Ni toxicity starting at 0.1 μmol L −1 Ni, presenting mean shoot Ni concentration of 28.9 mg kg −1 , along with leaf water loss until complete drying. The results contribute to our understanding of several physiological, biochemical and histological mechanisms of Ni toxicity in soybean, which is still poorly understood.

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“…These regions have different climate conditions and soil types with variable levels of toxic metals. In recent years, many authors have reported information about metal accumulation in durum wheat tissues, such as Cd [12,13], copper [14], arsenic [15], nickel [16], Pb, copper and chromium [17]. However, little is known about the combined effect of these metals on plant development, metal compartmentalization in plant tissues and molecular responses.…”

Section: Introductionmentioning

confidence: 99%

Combined Effect of Cadmium and Lead on Durum Wheat

Aprile

Sabella

Francia

et al. 2019

IJMS

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Cadmium (Cd) and lead (Pb) are two toxic heavy metals (HMs) whose presence in soil is generally low. However, industrial and agricultural activities in recent years have significantly raised their levels, causing progressive accumulations in plant edible tissues, and stimulating research in this field. Studies on toxic metals are commonly focused on a single metal, but toxic metals occur simultaneously. The understanding of the mechanisms of interaction between HMs during uptake is important to design agronomic or genetic strategies to limit contamination of crops. To study the single and combined effect of Cd and Pb on durum wheat, a hydroponic experiment was established to examine the accumulation of the two HMs. Moreover, the molecular mechanisms activated in the roots were investigated paying attention to transcription factors (bHLH family), heavy metal transporters and genes involved in the biosynthesis of metal chelators (nicotianamine and mugineic acid). Cd and Pb are accumulated following different molecular strategies by durum wheat plants, even if the two metals interact with each other influencing their respective uptake and translocation. Finally, we demonstrated that some genes (bHLH 29, YSL2, ZIF1, ZIFL1, ZIFL2, NAS2 and NAAT) were induced in the durum wheat roots only in response to Cd.

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Symplastic and apoplastic uptake and root to shoot translocation of nickel in wheat as affected by exogenous amino acids

Cited by 31 publications

References 43 publications

Continuous application of different organic additives can suppress tomato disease by inducing the healthy rhizospheric microbiota through alterations to the bulk soil microflora

Continuous application of different organic additives can suppress tomato disease by inducing the healthy rhizospheric microbiota through alterations to the bulk soil microflora

A glimpse into the physiological, biochemical and nutritional status of soybean plants under Ni-stress conditions

Combined Effect of Cadmium and Lead on Durum Wheat

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