Aluminum effects on the growth and mineral composition of corn plants cultivated in nutrient solution at low aluminum activity

Pintro, José Carlos; Barloy, J.; Fallavier, Paul

doi:10.1080/01904169609365156

Cited by 24 publications

(14 citation statements)

References 34 publications

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“…The inhibitory influence in Ca uptake was also found in soybean (Sartain and Kamprath 1978). Concentration of calcium and magnesium in shoot were found to be higher than that of root thereby indicating the higher translocation to shoot and less retention in roots as compared to either element Al, P or K. Pintro et al (1996) also recorded similar observations. The observed reduction in Ca and Mg of both root and shoot with respect to increased Al concentration of nutrient solution could be attributed to the competition of aluminium with these elements for common binding sites at or near the root surface and subsequent reduction in uptake of these elements.…”

Section: Hydroponic Assay: Nutrient Uptake Behavioursupporting

confidence: 53%

Screening of pigeonpea genotypes for nutrient uptake efficiency under aluminium toxicity

Choudhary

Singh

2011

Physiol Mol Biol Plants

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For increasing pigeonpea production in India, it is necessary to expand its area in non-traditional areas such as north-eastern states, which have considerable area under acidic soils. In such soils, aluminium toxicity, which is a major yield limiting factor, interferes with nutrient uptake efficiency of crop plants. 32 genotypes of pigeonpea [Cajanus cajan (L.) Millsp.] were screened for tolerance to aluminium toxicity at four different aluminium concentrations (41, 82, 123 and 205 μM Al) by hematoxylin staining and root re-growth methods. The results of the two screening methods were consistent, suggesting that either of the two methods could be used for screening purpose. The most tolerant (IPA 7-10, T 7, 67 B and GT 101E) and sensitive (Bahar, Pusa 9 and Pusa 2002-2) genotypes were assessed for root and shoot aluminium contents in hydroponic assay at 0, 41, 82, 123 and 205 μM aluminium concentrations. Root and shoot aluminium contents were significantly lower in the tolerant than sensitive genotypes, indicating that aluminium tolerance mechanism involved aluminium exclusion and perhaps internal detoxification. Tolerant and sensitive genotypes were further assessed for phosphorus, potassium, calcium and magnesium contents in their root and shoot. Tolerant genotypes (IPA 7-10, T 7, 67 B and GT 101E) accumulated significantly high amounts of these nutrients (>1.5 times) compared to the sensitive ones. Better performance of tolerant genotypes could be ascribed to better nutrient uptake efficiency and distribution within the plants.

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Section: Hydroponic Assay: Nutrient Uptake Behavioursupporting

confidence: 53%

Screening of pigeonpea genotypes for nutrient uptake efficiency under aluminium toxicity

Choudhary

Singh

2011

Physiol Mol Biol Plants

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“…Symptoms ofB deficiency are similar to those induced by Al stress Blevins, 1987). Aluminum has been shown to affect the uptake of other elements, such as Ca, P, K, and B in previous reports (Baligar et al, 1995;Pintro et al, 1996). The deficiency of B could destroy the function of cell membranes and influence the transportation of substracts and activity of enzymes (Blaser-Grill et al, 1989).…”

Section: (Ai(mm) + B(um))mentioning

confidence: 96%

Boron amelioration of aluminum toxicity in mungbean seedlings

Yang

Zhang

1998

Journal of Plant Nutrition

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Boron (B) amelioration of aluminum (Al) toxicity was studied for growth of mungbean (Phaseolus aureus Roxb.) seedlings and cuttings (without roots) in a growth chamber. Mungbean seedlings and cuttings were grown in the solution with combinations of three concentrations of B (0,5, and 50 μM) and three concentrations of Al (0, 2, and 5 mM) in randomized complete block design experiments for 16 days. Results showed that B significantly promoted elongation of epicotyls and hypocotyls, and increased height of seedlings grown under Al stress. Boron also increased fresh weight of seedlings in high Al solution. Treatment of plants grown with high B and Al stress had no apparent effect on fresh and dry weights of seedling roots. Seedling dry weight increased significantly by adding high B to solutions with 2 mM or 5 mM Al. No significant differences were observed between the high B treatment and the control (normal B, 5 μM) in lengths of epicotyls and fresh and dry weights of mungbean cuttings grown under Al stress. High concentrations of B decreased soluble protein and increased chlorophyll in seedlings treated with 2 mM Al. Boron had no amelioration effect on cuttings grown with Al, although Al increased soluble protein. Our results suggested that B alleviation of Al toxicity was related to root function and Al toxicity may possibly be due, in part, to B deficiency.

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“…Genetic variability for Al resistance in maize has been reported (Jorge & Arruda, 1997;Pintro et al, 1996 and Al-resistant maize cultivars have been selected for acidic soils (Pandey & Gardner, 1992). Maize grain-yield increase has been obtained on acid soils through selection for tolerant cultivars in tropical maize populations.…”

Section: Aluminium Influence On Maize Plantsmentioning

confidence: 99%