Effect of Selenium on Mineral Content and Nutritive Value ofMelilotus officinalisL.

Κωστοπούλου, Π.; Parissi, Z. M.; Abraham, Εleni M.; Karatassiou, Maria; Kyriazopoulos, Apostolos P.; Barbayiannis, Nikolaos

doi:10.1080/01904167.2015.1043376

Cited by 10 publications

(11 citation statements)

References 37 publications

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“…This result is in agreement with the general assumption that absorption of elements such as Mn, Zn, Cu and Fe is inhibited by increasing Se levels (Kabata-Pendias and Pendias, 2001;Fargašová et al, 2006). Moreover, similar results have been found in a previous experiment using M. officinalis (Kostopoulou et al, 2015). However, contrasting results have been reported in other plant species.…”

Section: Discussionsupporting

confidence: 80%

“…Se addition at low level decreased K content, while at the higher Se level, an increment of K was detected. Similar results were also reported for M. officinalis (Kostopoulou et al, 2015) and Brassica oleracea leaves (Kopsell et al, 2000), suggesting a possible involvement of this element in the tolerance mechanism of Se (Kostopoulou et al, 2015). On the contrary, Hawrylak-Novak (2008) reported that at low Se concentration in the nutrient solution, K content in the aerial parts of maize plants increased, while at high Se concentration the opposite effect was found.…”

Section: Discussionsupporting

confidence: 56%

“…Kostopoulou et al (2015) found that Na concentration was increased in the shoots, but there was no increase in the leaves, after the addition of sodium selenate. The Ca and Mg concentrations were affected by sodium selenate addition, with an increase at the low and a decrease at the high level.…”

Section: Discussionmentioning

confidence: 97%

“…Kostopoulou et al (2015) reported various changes in macronutrient concentrations of Se enriched plants, while the micronutrient content decreased significantly. Generally, Se in high concentrations may compete with S and P (Tennant and Wu, 2000) but the effects on the uptake of other nutrients in plants are not very clear (Feng et al, 2009).…”

Section: Sampling and Chemical Analysismentioning

confidence: 99%

“…This species has the ability to accumulate more than 100 mg Se kg -1 DM in its tissues when irrigated with sodium selenate solution (Kostopoulou et al, 2010). Therefore, it could be used either as a dietary supplement, in mixture with non-accumulator species, for livestock feed deficient in Se or for restoration of grasslands in seleniferous soils (Kostopoulou et al, 2015).…”

Section: Sampling and Chemical Analysismentioning

confidence: 99%

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Synergistic Effect of Selenium Addition and Water Stress on Melilotus officinalis L. Mineral Content

Κωστοπούλου

Kyriazopoulos

Abraham

et al. 2015

Not Bot Hort Agrobot Cluj

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The objective of this study was to examine the combined effects of selenium (Se) enrichment and water stress on the accumulation of available macro-and micronutrients in Melilotus officinalis L. aerial parts. Plants of M. officinalis were subjected to three levels of Se addition (0, 1 and 3 mg Se L -1 water) and to two water treatments: a) full irrigation and b) limited irrigation (water stress). The above ground biomass (stems and leaves) was analyzed for Se, potassium (K), sodium (Na), magnesium (Mg), iron (Fe), copper (Cu), calcium (Ca), manganese (Mn) and zinc (Zn). Se addition differentially affected the K, Mg and Ca content of M. officinalis aerial parts, while it led to the reduction of the micronutrients Cu, Fe and Mn. Water stress resulted in the increase of K, Na, Mg, Ca and Cu, and to the decrease of the Fe, Zn and Mn content. An interaction between selenium addition and water treatment was more notable for Ca and Mg, which decreased under water stress at low Se level and for Zn and Cu, which increased under water stress at high Se level. According to our findings, Seinduced increased accumulation of some inorganic ions in the aerial parts of this species under water stress conditions could serve as a means to alleviate the adverse impact of water deficit on important metabolic processes, enhancing M. officinalis tolerance to water stress.

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Section: Discussionsupporting

confidence: 80%

Section: Discussionsupporting

confidence: 56%

Section: Discussionmentioning

confidence: 97%

Section: Sampling and Chemical Analysismentioning

confidence: 99%

Section: Sampling and Chemical Analysismentioning

confidence: 99%

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Synergistic Effect of Selenium Addition and Water Stress on Melilotus officinalis L. Mineral Content

Κωστοπούλου

Kyriazopoulos

Abraham

et al. 2015

Not Bot Hort Agrobot Cluj

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Oxidative Stress, Nutritional Disorders, and Gas Exchange in Lettuce Plants Subjected to Two Selenium Sources

Ferreira¹,

Prado

Souza

et al. 2020

J Soil Sci Plant Nutr

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Selenium (Se) is microelement beneficial to plants and essential to animals and humans. Supply of Se shows positive effects on plant growth, but high concentrations affect its growth. This study is based on the hypothesis that nutritional disorder and oxidative stress induced by toxic levels of selenium maintain a close correlation with inhibition of photosynthesis net and reduced growth in lettuce plants. In this study, we investigated impact of Se toxicity on gas exchange, oxidative stress indicators, nutritional status, and growth of lettuce plants. Two sources and ten selenium concentrations were evaluated in lettuce according to a completely randomized experimental design in a factorial scheme with two selenium sources (selenite and selenate) and ten selenium concentration (0, 2, 4, 6, 8, 16, 32, 64, 96, 128 μM). Results show that reduction in leaf area and shoot dry matter was high when selenite was supplied to plants. It was achieved due to oxidative stress and nutritional disorder that affected photosynthesis, which resulted in low photosynthesis net. These results were reinforced by strong correlation of photosynthesis with essential nutrient contents and indicators of oxidative stress in plants treated with selenite. However, photosynthesis net was increased with 8 μM concentration of selenate. Lettuce growth was reduced due to oxidative stress and nutritional disorder. The results of this study contribute to clarifying negative modulation of photosynthesis net by higher selenate or selenite concentrations in lettuce plants through growth analysis, nutritional composition, oxidative stress indicators, and gas exchange. The strong or very strong negative correlation between photosynthesis net and oxidative stress indicators (superoxide, peroxide and malondialdehyde), photosynthesis net and chlorophyll a, photosynthesis net, and selenium content support the hypothesis of this study in which selenium-induced damage to the photosynthetic apparatus reduces the growth of lettuce. These results show new evidence on the mechanism of action of selenium toxicity on the photosynthetic machinery of lettuce plants. In addition, the results found show that lettuce plants respond differently to the source and concentration of selenium, with symptoms of toxicity manifesting even in the short exposure time of lettuce plants.

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Effects of various forms of selenium biofortification on photosynthesis, secondary metabolites, quality, and lignin deposition in alfalfa (Medicago sativa L.)

Zhang

Zhu

Cen

et al. 2023

Field Crops Research

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Effect of Selenium on Mineral Content and Nutritive Value ofMelilotus officinalisL.

Cited by 10 publications

References 37 publications

Synergistic Effect of Selenium Addition and Water Stress on <i>Melilotus officinalis</i> L. Mineral Content

Synergistic Effect of Selenium Addition and Water Stress on <i>Melilotus officinalis</i> L. Mineral Content

Oxidative Stress, Nutritional Disorders, and Gas Exchange in Lettuce Plants Subjected to Two Selenium Sources

Effects of various forms of selenium biofortification on photosynthesis, secondary metabolites, quality, and lignin deposition in alfalfa (Medicago sativa L.)

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