Study of the Effects of High Levels of Nutrients on Seed Germination and Root Elongation

Kundrát, János Tamás; Gyulai, István; Simon, Edina; Mizsei, Edvárd; Braun, Mihály; Tóthmérész, Béla

doi:10.15244/pjoes/68879

Cited by 3 publications

(4 citation statements)

References 21 publications

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“…In the study, not all sediment samples gave a toxic response of tested organisms. The organic matter, total nitrogen, and other nutrients are essential for growth of producers in the aquatic ecosystem (Kundrat et al 2017; Jung 2017). In our studies, it was demonstrated that the some sample of sediments had stimulant effects of plants growth.…”

Section: Resultsmentioning

confidence: 99%

“…In our studies, it was demonstrated that the some sample of sediments had stimulant effects of plants growth. Kundrat et al (2017) found that the high mineral level of the bottom sediments had stimulant effect on seed germination and roots growth of S. alba. Czerniawska-Kusza et al (2006) also demonstrated that higher amount of organic matter and nutrients in bottom sediments stimulated root growth of S. alba and L. sativum.…”

Section: Resultsmentioning

confidence: 99%

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Content of nutrients, trace elements, and ecotoxicity of sediment cores from Rożnów reservoir (Southern Poland)

Baran

Tarnawski

Koniarz

et al. 2019

Environ Geochem Health

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The aims of the study were to investigate the concentration of trace elements, nutrients, and ecotoxicity in bottom sediment cores collected from the silted part of the Rożnów reservoir (Southern Poland). Significant differences in the content of nutrients, trace elements, and ecotoxicity between five sediment cores were found. However, in the vertical distribution, there was no high variability of the above parameters, which means that the intensely suspended matter transported by the Dunajec river is and, at various times, has been homogeneous. Significant correlations between nutrients and trace elements (r = 0.33–0.91, at p ≤ 0.05) point to the same sources of the above-mentioned substances and similar levels of contamination in the sediment cores. However, the PCA results showed that cadmium and phosphorus in the sediment cores had different behaviors than other elements and can be associated mainly with anthropogenic sources. According to the degree of contamination factor, sediment cores fall under the category of considerable contamination of metals. Geochemical factors indicated that nickel, chromium, and cadmium (only sediment core C1) were found to be the cause of significant pollution in the sediment cores. Toxicity assessment found that most of the bottom sediment samples were classified as non-toxic or slightly toxic, only 10% of the sediment samples were toxic for Vibrio fischeri, and 6% of the samples were toxic for Sinapis alba. The two test organisms showed a different sensitivity, and higher toxic responses were recorded for V. fischeri than for S. alba. Cadmium and phosphorus were associated with toxicity for S. alba (r = 0.29–0.58, at p ≤ 0.05), whereas TOC, N, and S, and Ca for stimulation of growth this plants. Trace elements (r = 0.32–0.51, at p ≤ 0.05) and nutrients (S, K, Mg, Na, r = 0.44–0.58, at p ≤ 0.05) were positively correlated with inhibition of luminescence of V. fischeri. The studies of concentration and relation between trace elements, nutrients, and ecotoxicity are important in the ecological risk assessment and describing the quality of sediments with multiple sources contamination.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Content of nutrients, trace elements, and ecotoxicity of sediment cores from Rożnów reservoir (Southern Poland)

Baran

Tarnawski

Koniarz

et al. 2019

Environ Geochem Health

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“…In addition to the importance of soil ions in seed germination, because plant seeds are highly sensitive to the soil environment, seed germination has been widely used to monitor toxicity in contaminated ecosystems [52]. A detailed study reported how high levels of nutrients in water and sediments from three different sources (river, thermal ponds, and control ponds) recollected in Albanis affected the germination of Sinapis alba L. seeds with toxic and/or stimulant effects [53]. No significant differences on seed germination were found among the three nutrient sources.…”

Section: Importance Of Soil Nutrients In Seed Germination Developmenmentioning

confidence: 99%

The Importance of Ion Homeostasis and Nutrient Status in Seed Development and Germination

et al. 2020

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Seed is the dissemination unit of plants initiating an important stage in the life cycle of plants. Seed development, comprising two phases: embryogenesis and seed maturation, may define the quality of sown seed, especially under abiotic stress. In this review we have focused on the recent advances in the molecular mechanisms underlying these complex processes and how they are controlled by distinct environmental factors regulating ion homeostasis into the seed tissues. The role of transporters affecting seed embryogenesis and first stages of germination as imbibition and subsequent radicle protrusion and extension were revised from a molecular point of view. Seed formation depends on the loading of nutrients from the maternal seed coat to the filial endosperm, a process of which the efflux is not clear and where different ions and transporters are involved. The clear interrelation between soil nutrients, presence of heavy metals and the ion capacity of penetration through the seed are discussed in terms of ion effect during different germination stages. Results concerning seed priming techniques used in the improvement of seed vigor and radicle emergence are shown, where the use of nutrients as a novel way of osmopriming to alleviate abiotic stress effects and improve seedlings yield is discussed. Novel approaches to know the re-translocation from source leaves to developing seeds are considered, as an essential mechanism to understand the biofortification process of certain grains in order to cope with nutrient deficiencies, especially in arid and semiarid areas. Finally, the role of new genes involved in hormone-dependent processes, oxidative response and water uptake into the seeds during their development or germination, have been described as plant mechanisms to deal with abiotic stresses.

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“…De acordo com Carniato et al (2007), Costa (2010) e Lapa et al (2014), os testes crônicos são caracterizados por permanecerem um longo período, em parte ou abrangendo todo o ciclo de vida do organismo-teste, exposto ao potencial contaminante tóxico. Os testes agudos são realizados em laboratórios, onde as condições são específicas e controladas, reduzindo a (FANTIN et al, 2009;YERUSHALMI et al, 2010;HIMANEN et al, 2012;BEDELL et al, 2014a;BEDELL et al, 2014b;EMAMI et al, 2014;MACÍA et al, 2014;KUNDRÁT et al, 2017;SONG et al, 2017;ZHANG et al, 2017;KOHATSU et al, 2018). Para a realização dos ensaios fitotóxicos, adota-se o controle que é uma solução que causa efeitos previsíveis sobre os organismos indicadores.…”

Section: Introductionunclassified

Sensibilidade de diferentes sementes em ensaio de fitotoxicidade

Peduto

Jesus

Kohatsu

2019

Rev. Bras. de Cien., Tec e Inov.

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A Ecotoxicologia estuda a contaminação ambiental e os efeitos das substâncias químicas em seres vivos, investigando se são passíveis de causar danos aos organismos, levando em conta a sensibilidade à exposição por agentes tóxicos. Os testes de toxicidade com organismos vegetais possuem vantagens como: a simplicidade na realização do ensaio, sensibilidade na indicação de substâncias tóxicas e baixo custo. Como limitações, estas análises não permitem identificar especificamente os contaminantes que causam a toxicidade. Dessa forma, visou-se neste estudo analisar e comparar os parâmetros macroscópicos que demonstram alterações no crescimento inicial de seis espécies vegetais fortemente empregadas como bioindicadoras de toxicidade e analisar o índice de germinação. Eles consistiram em incubar (n = 10) sementes das espécies Allium cepa(Cebola), Cucumis sativus(Pepino), Lepidium sativum(Agrião do jardim), Lactuca sativa(Alface), Sinapis alba(Mostarda) e Eruca sativa(Rúcula), por diferentes períodos, em contato com três soluções de controle (Dicromato de Potássio, água ISO e água destilada) à temperatura de 20 ºC. Foi realizado também o comparativo econômico de aquisição das sementes no comércio. Os ensaios de germinação apresentaram diferentes respostas, concluindo que a semente da espécie S. albaobteve o melhor desempenho no teste de fitotoxicidade, por apresentar alta germinação em menor tempo de incubação, facilidade de avaliação das plântulas, elevado grau de sensibilidade frente aoscompostos estimulante e inibidor e menor valor de compra.

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Study of the Effects of High Levels of Nutrients on Seed Germination and Root Elongation

Cited by 3 publications

References 21 publications

Content of nutrients, trace elements, and ecotoxicity of sediment cores from Rożnów reservoir (Southern Poland)

Content of nutrients, trace elements, and ecotoxicity of sediment cores from Rożnów reservoir (Southern Poland)

The Importance of Ion Homeostasis and Nutrient Status in Seed Development and Germination

Sensibilidade de diferentes sementes em ensaio de fitotoxicidade

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