Comparative effects of selenate and selenite on growth and biochemical composition of rapeseed (Brassica napus L.)

Sharma, Sucheta; Bansal, Ashish; Dhillon, S. K.; Dhillon, K. S.

doi:10.1007/s11104-009-0162-3

Cited by 66 publications

(47 citation statements)

References 57 publications

(58 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Selenate application was more effective than selenite in inducing Se accumulation in edible part of lettuce plants for all accessions examined. The result is consistent with other studies of different crops in showing that selenate is superior to selenite in inducing Se accumulation in shoots of plants (Hopper and Parker 1999;Chen et al 2002;Zhang et al 2003;Cartes et al 2005;Sharma et al 2010). Rios et al (2008b) and Ramos et al (2010) also showed that for the same concentration of Se applied, selenate promotes higher accumulation of Se in lettuce plants.…”

Section: Discussionsupporting

confidence: 91%

Selenium accumulation in lettuce germplasm

Ramos

Rutzke

Hayes

et al. 2010

Planta

View full text Add to dashboard Cite

Selenium (Se) is an essential micronutrient for animals and humans. Increasing Se content in food crops offers an effective approach to reduce the widespread selenium deficiency problem in many parts of the world. In this study, we evaluated 30 diverse accessions of lettuce (Lactuca sativa L.) for their capacity to accumulate Se and their responses to different forms of Se in terms of plant growth, nutritional characteristics, and gene expression. Lettuce accessions responded differently to selenate and selenite treatment, and selenate is superior to selenite in inducing total Se accumulation. At least over twofold change in total Se levels between cultivars with high and low Se content was found. Synergistic relationship between Se and sulfur accumulation was observed in nearly all accessions at the selenate dosage applied. The change in shoot biomass varied between lettuce accessions and the forms of Se used. The growth-stimulated effect by selenate and the growth-inhibited effect by selenite were found to be correlated with the alteration of antioxidant enzyme activities. The different ability of lettuce accessions to accumulate Se following selenate treatment appeared to be associated with an altered expression of genes involved in Se/S uptake and assimilation. Our results provide important information for the effects of different forms of Se on plant growth and metabolism. They will also be of help in selecting and developing better cultivars for Se biofortification in lettuce.

show abstract

Section: Discussionsupporting

confidence: 91%

Selenium accumulation in lettuce germplasm

Ramos

Rutzke

Hayes

et al. 2010

Planta

View full text Add to dashboard Cite

show abstract

“…The kenaf plants grown on soils treated with selenate seem to accumulate Se at higher concentrations compared to plants of the Brassicaceae, whereas concentrations similar to those observed in plants of the Brassicaceae were found in the kenaf plants grown on the selenite-treated soil (Hopper and Parker, 1999;Sharma et al, 2010). Compared to kenaf, chives (Allium schoenoprasum) and dill (Anethum graveolens L.) seem to accumulate Se in higher concentrations for both fertilizers (Cankur et al, 2006;Kápolna et al, 2007).…”

Section: Discussionmentioning

confidence: 92%

“…Selenium levels above 300 mg Se (kg DW) -1 in the plant became toxic when selenate doses above 2 mg Se (kg soil) -1 were applied. Many plants show signs of Se toxicity in terms of reduced dry-matter yield at high Se plant levels (Banuelos et al, 1997;Dhillon and Dhillon, 2009;Sharma et al, 2010). Selenium toxicity is attributed to its similarity to sulfur as Se replaces sulfur in amino acids and can change protein folding, causing reduced growth and deformities (Daniels, 1996;Lemly, 1997;Sors et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

Use of selenium fertilizers for production of Se‐enriched Kenaf (Hibiscus cannabinus): Effect on Se concentration and plant productivity

Lavu

Schepper

Steppe

et al. 2013

Z. Pflanzenernähr. Bodenk.

View full text Add to dashboard Cite

Due to selenium (Se) deficiency, Se fortification of food and feed is applied in many countries. Therefore, potential use of Se-enriched kenaf was investigated based on its Se accumulation, its potential to transform accumulated Se to other Se species, and effect of Se accumulation on its growth. Kenaf was grown with different levels of two Se fertilizers (selenite and selenate) at concentrations ranging from 0 to 4 mg Se (kg soil) -1 . Total Se concentrations in the plants grown on selenate-treated soil amounted to (1019 ± 136) mg Se (kg dry weight) -1 and were much higher compared to plants grown on selenite-treated soil. Identified Se species were selenite, selenate, Se-methionine, and Se-cystine. Biomass yield, net photosynthesis, and chlorophyll index of the plants decreased when plants were grown on soils treated with high doses of selenate.

show abstract

“…(Ramos et al, 2010;Sharma et al, 2010). Os teores de Se nos grãos de arroz foram afetados significativamente pela interação entre doses e formas de Se (Figura 2).…”

Section: Resultsunclassified

Selenato e selenito na produção e biofortificação agronômica com selênio em arroz

Boldrin

Faquin

Ramos

et al. 2012

Pesq. agropec. bras.

View full text Add to dashboard Cite

Resumo -O objetivo deste trabalho foi avaliar o efeito da aplicação de doses de selenato e selenito na biofortificação de arroz (Oryza sativa) com Se, bem como a influência dessas formas de Se nos teores de P, S, Fe e Zn nos grãos. O experimento foi conduzido em casa de vegetação, em vasos com 4 dm 3 de um Latossolo Vermelho-Amarelo distrófico, de textura média, em arranjo fatorial 5x2, com cinco doses de Se (0, 0,75, 1,50, 3,0 e 6,0 mg dm -3 ) e duas formas de Se (selenato e selenito). Observou-se que o selenato proporcionou maior eficiência na absorção de Se pelas raízes, aproveitamento pela planta, translocação para a parte aérea e teor desse elemento nos grãos. A aplicação do selênio na adubação altera os teores de P, S e Zn, mas não afeta os de Fe nos grãos de arroz.Termos para indexação: arroz enriquecido, aproveitamento de selênio, segurança alimentar, selenato, selenito. Selenate and selenite on yield and agronomic biofortification with selenium in riceAbstract -The objective of this work was to evaluate the effect of doses of selenate and selenite on rice (Oryza sativa) biofortification with Se, as well the influence of these forms of Se in the levels of P, S, Fe, and Zn in grains. The experiment was conducted in a greenhouse, in pots with 4 dm 3 of a sandy clay loam Latosol, with medium texture, in a 5x2 factorial arrangement with five doses of Se (0, 0.75, 1.50, 3.0, and 6.0 mg dm -3 ) and two forms of Se (selenate and selenite). Selenate provided greater efficiency of root uptake of Se, plant-use efficiency, translocation from roots to shoots, and content of this element in rice grains. The application of Se during fertilization influences the levels of P, S, and Zn, but does not affect those of Fe in rice grains.

show abstract

Comparative effects of selenate and selenite on growth and biochemical composition of rapeseed (Brassica napus L.)

Cited by 66 publications

References 57 publications

Selenium accumulation in lettuce germplasm

Selenium accumulation in lettuce germplasm

Use of selenium fertilizers for production of Se‐enriched Kenaf (Hibiscus cannabinus): Effect on Se concentration and plant productivity

Selenato e selenito na produção e biofortificação agronômica com selênio em arroz

Contact Info

Product

Resources

About