Role of selenium in preventing manganese toxicity in sunflower (Helianthus annuus) seedling

Saidi, Issam; Nawel, N.; Djebali, Wahbi

doi:10.1016/j.sajb.2014.06.005

Cited by 17 publications

(10 citation statements)

References 56 publications

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“…The increase in Mn uptake due to higher availability of the nutrient in the soil increases the synthesis of nonstructural carbohydrates (Marschner, 2012) and, consequently, the synthesis of lignin, resulting in perennial leaves (Doncheva et al, 2009) and increased leaf area. However, excess of Mn is detrimental to plants and may reduce leaf biomass (Marschner, 2012;Saidi et al, 2014) by chlorophyll degradation (Papadakis et al, 2007) with consequent low carboxylation efficiency (Millaleo et al, 2013). Manganese rates affected relative chlorophyll index (RCI) at the first and second cuts, with quadratic adjustment (Fig 3).…”

Section: Plant Height Leaf Area and Relative Chlorophyll Indexmentioning

confidence: 99%

“…However, in the present study the same rate promoted decreases of 28, 22, 40, and 25% in DM accumulation in the aerial part, roots, and in aerial part total DM at the first and second cut, respectively, in relation to the rates that promoted maximum production. The decrease in DM production by Mn excess occurs due to higher chlorophyll degradation (Papadakis et al, 2007;Wang et al, 2009), because the lower the chlorophyll biosynthesis the lower the net photosynthesis and the carboxylation efficiency (Millaleo et al, 2013), and consequently, there is a decrease in the biosynthesis of carbohydrates (Mingotte et al, 2011), affecting root growth and dry matter yield (Malavolta, 2006;Marschner, 2012;Saidi et al, 2014).…”

Section: Dry Matter Productionmentioning

confidence: 99%

“…Several factors can reduce the soil manganese content availability, such as pH higher than 6.5 (Ducic and Polle, 2005) and high levels of soil organic matter (Prado, 2008). Besides that, favorable conditions for increased bioavailability of nutrients in the soil as well as low oxygen supply (reduced atmosphere), acid pH (<5.0) or excess fertilization can cause Mn toxicity (Malavolta, 2006;Dechen and Nachtigall, 2007;Marschner, 2012;Millaleo et al, 2013;Saidi et al, 2014). Research in tropical regions have reported the importance of manganese in forage, such as Panicum maximum (Mingotte et al, 2011;Sylvestre et al, 2012) and Brachiaria brizantha (Puga et al, 2011;Guirra et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Growth, nutrition and production of dry matter of Kikuyu Grass (Brachiaria humidicula) as a function of Mn-fertilizer

Arruda¹,

Flores²,

Damin³

et al. 2016

Aust J Crop Sci

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Manganese (Mn) is important to increase forage crop yields. However, there is little information regarding the adequate Mn-fertilizer rates for Brachiaria humidicula species. The objective of this research was to evaluate the effect of manganese on growth, nutrition and yield of Brachiaria humidicula. The study was carried out in a green house in a randomized block design with five rates of manganese (0, 15, 30, 60 and 120 mg dm -3 ) and four replicates. Were evaluated plant height, leaf area, relative chlorophyll index, dry matter production, manganese accumulation and content, besides absorption efficiencies and transport and use of manganese (Mn). Brachiaria humidicula showed high tolerance to this nutrient, because the application of only 120 mg dm -3 to the soil was phytotoxic, showing symptoms such as brown spots and leaf tip curling. Manganese applied at a dose of 120 mg dm -3 reduced aerial part biomass yield by 25% and promoted lower efficiency of use of this nutrient by the forage by 49%. However, even with the initial content of manganese in the soil considered sufficient to meet nutritional demands to achieving high yields, the application of 60 mg dm -3 of manganese to the soil is recommended.

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Section: Plant Height Leaf Area and Relative Chlorophyll Indexmentioning

confidence: 99%

Section: Dry Matter Productionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Growth, nutrition and production of dry matter of Kikuyu Grass (Brachiaria humidicula) as a function of Mn-fertilizer

Arruda¹,

Flores²,

Damin³

et al. 2016

Aust J Crop Sci

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“…High Mn accumulation can reduce leaf biomass (Saidi et al, 2014) and plant growth (Shenker et al, 2004) due to degradative process (Shenker et al, 2004;Papadakis et al, 2007, Marschner, 2012, chlorophylls synthesis reduction (Lidon et al, 2004;Wang et al, 2009) and low carboxylation (Millaleo et al, 2010;Millaleo et al, 2013). Thus, Mn interferes with the photosynthetic performance (Kitao et al, 1997;Nable et al, 1988;Vitti et al, 2006;Schmidt et al, 2013), and its excess can potentiate reactions with oxygen, causing damage cells (Papadakis et al, 2007), directly affecting the operation of photosystem II, responsible for water photolysis (Dechen and Nachtigall, 2007).…”

Section: Height Leaf Area and Stem Diametermentioning

confidence: 99%

Manganese accumulation and dry matter production of Guinea Grass (Panicum maximum) after application of increasing doses of Mn fertilizer

Flores¹,

Damin²,

Mascarenhas³

et al. 2017

Aust J Crop Sci

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The manganese (Mn) is an important nutrient to forage development; however, there is a lack of information regarding to adequate Mn-fertilizer rates for Guinea Grass (Panicum maximum) species growing in Brazilian soils. The objective of this research was to evaluate the effect of Mn on growth, nutrition and yield of Guinea Grass. The study was carried out under greenhouse conditions in a randomized block design, with five Mn rates (0, 15, 30, 60 and 120 mg dm -3 ) and four replicates, using manganese sulfate (35.5% Mn) as Mn source. Plant's growth parameters, dry mass production, Mn 2+ levels and accumulation in plant's tissues were measured and Mn efficiencies of absorption, transport and utilization were calculated. Enhancing Mn doses, there was a proportional increase of Mn 2+ levels in the leaves and the roots. Regarding to the growth parameters, the number of leaves and both root and aboveground dry mass were slightly affected by Mn application. The highest Mn efficiency of absorption and transport by Guinea Grass was ob using 30 mg dm -3 of Mn; however, the Mn utilization efficiency was higher when Mn was not applied. In this way, the Mn fertilization in Guinea Grass is economically viable using doses up to 30 mg dm -3 .

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“…Blamey et al (2015) proposed two mechanisms that tolerance to high Mn is, in the root environment, due to the prevention of Mn accumulation in the cytoplasm and apoplast. Mn tolerance also involves other nutrient, such as Si in detoxifying Mn through some mechanism from physiological responses (Che, et al 2016;Li et al 2015), gene expression (Li et al 2015) and Se in alleviating Mninduced oxidative stress (Saidi et al 2014). In soil, Mn toxicity also has a relationship with Sr-nitrate extractable metals, while liming decreases this compound (Beyer et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Frugivorous bird characteristic of seed disperser in shrubland tropical forest West Java, Indonesia

Kuswantoro

2017

Biodiversitas

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Abstract. Kuswantoro H. 2016. Differential response of roots growth of soybean germplasm under low pH and manganese toxicity. . Most of Indonesia dry land are covered by acid soil. The growth and development of the plant in this acid soil cope with low pH and micronutrients toxicity. The objective of this research was to study the response of root growth of soybean germplams to low pH and manganese toxicity. Nine soybean germplasm were treated in aquadest with pH 7 as control, aquadest with pH 4, and 75 ppm Mn with pH 4 in Seed Laboratory of Indonesian Legume and Tuber Crops Research Institute, Malang, Indonesia. Results showed that root length, number of lateral roots, root dry weight were lower in low pH and Mn toxicity than in the control. Shoot dry weight, hypocotyl length and epicotyl length were not influenced by low pH and Mn toxicity. Some genotypes showed increasing root length in low pH, and increasing number of lateral roots and root dry weight in Mn toxicity. Based on the acid soil adaptation index (ASAI) on root length, MLGG 0493 and MLGG 0496 showed the highest value index in three comparative conditions. The genotype of MLGG 0496 also showed the highest ASAI value on numbers of lateral root in three comparative conditions. MLGG 0494 achieved the highest ASAI value of root dry weight. However, the use of root dry weight as a criterion in soybean adaptation in low pH and Mn toxicity should be studied further because the tolerance is not just in increasing root dry weight as a result of root thickening.

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Role of selenium in preventing manganese toxicity in sunflower (Helianthus annuus) seedling

Cited by 17 publications

References 56 publications

Growth, nutrition and production of dry matter of Kikuyu Grass (Brachiaria humidicula) as a function of Mn-fertilizer

Growth, nutrition and production of dry matter of Kikuyu Grass (Brachiaria humidicula) as a function of Mn-fertilizer

Manganese accumulation and dry matter production of Guinea Grass (Panicum maximum) after application of increasing doses of Mn fertilizer

Frugivorous bird characteristic of seed disperser in shrubland tropical forest West Java, Indonesia

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