Biochemistry of Plant Selenium Uptake and Metabolism

Guignardi, Zackary S.; Schiavon, Michela

doi:10.1007/978-3-319-56249-0_2

Cited by 27 publications

(19 citation statements)

References 86 publications

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“…It is an essential mineral nutrient for humans, animals, and certain microorganisms. At the appropriate concentrations, it is beneficial for plant growth ( Guignardi and Schiavon, 2017 ). Selenium may be toxic or beneficial depending on the dosage.…”

Section: Introductionmentioning

confidence: 99%

Integrative Transcriptome and Proteome Analysis Reveals the Absorption and Metabolism of Selenium in Tea Plants [Camellia sinensis (L.) O. Kuntze]

Ren

Guo

et al. 2022

Front. Plant Sci.

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Certain tea plants (Camellia sinensis) have the ability to accumulate selenium. In plants, the predominant forms of bioavailable Se are selenite (SeO32–) and selenate (SeO42–). We applied transcriptomics and proteomics to hydroponically grown plants treated with selenite or selenate for 48 h in the attempt to elucidate the selenium absorption and assimilation mechanisms in tea. A total of 1,844 differentially expressed genes (DEGs) and 691 differentially expressed proteins (DEPs) were obtained by comparing the Na2SeO3 and Na2SeO4 treatments against the control. A GO analysis showed that the genes related to amino acid and protein metabolism and redox reaction were strongly upregulated in the plants under the Na2SeO3 treatment. A KEGG pathway analysis revealed that numerous genes involved in amino acid and glutathione metabolism were upregulated, genes and proteins associated with glutathione metabolism and ubiquinone and terpenoid-quinone biosynthesis were highly expressed. Genes participating in DNA and RNA metabolism were identified and proteins related to glutathione metabolism were detected in tea plants supplemented with Na2SeO4. ABC, nitrate and sugar transporter genes were differentially expressed in response to selenite and selenate. Phosphate transporter (PHT3;1a, PHT1;3b, and PHT1;8) and aquaporin (NIP2;1) genes were upregulated in the presence of selenite. Sulfate transporter (SULTR1;1 and SULTR2;1) expression increased in response to selenate exposure. The results of the present study have clarified Se absorption and metabolism in tea plants, and play an important theoretical reference significance for the breeding and cultivation of selenium-enriched tea varieties.

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Section: Introductionmentioning

confidence: 99%

Integrative Transcriptome and Proteome Analysis Reveals the Absorption and Metabolism of Selenium in Tea Plants [Camellia sinensis (L.) O. Kuntze]

Ren

Guo

et al. 2022

Front. Plant Sci.

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“…By taking advantage of elevated selenocysteine methyltransferase (SMT) levels, Se hyperaccumulators produce methylated forms of SeMet and SeCys, rather than integrating these Se-AAs into proteins (Pilon-Smits, 2017). The Se hyperaccumulators are also capable of converting SeCys to elemental Se and alanine (Guignardi and Schiavon, 2017). In addition, they have higher contents of hormones (jasmonic acid, salicylic acid, and ethylene) and enhanced levels of stress-resistance genes, which contribute to Se assimilation and tolerance (Pilon-Smits, 2017).…”

Section: Vegetable Species and Cultivarsmentioning

confidence: 99%

Seleno-Amino Acids in Vegetables: A Review of Their Forms and Metabolism

Wang

Zhang

et al. 2022

Front. Plant Sci.

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Seleno-amino acids are safe, health-promoting compounds for humans. Numerous studies have focused on the forms and metabolism of seleno-amino acids in vegetables. Based on research progress on seleno-amino acids, we provide insights into the production of selenium-enriched vegetables with high seleno-amino acids contents. To ensure safe and effective intake of selenium, several issues need to be addressed, including (1) how to improve the accumulation of seleno-amino acids and (2) how to control the total selenium and seleno-amino acids contents in vegetables. The combined use of plant factories with artificial lighting and multiple analytical technologies may help to resolve these issues. Moreover, we propose a Precise Control of Selenium Content production system, which has the potential to produce vegetables with specified amounts of selenium and high proportions of seleno-amino acids.

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“…Bu, selenatı (veya sülfatı) ATP'ye bağlayan, adenosin 5′fosfoselenat (APSe) veya adenosin 5′-fosfosülfat (APS) oluşturan ATP sülfürilaz enzimi tarafından gerçekleştirilir. Se asimilasyonunda hız sınırlayıcı olduğu bulunan bu adım hem sitozol hem de plastidlerde meydana gelir (Şekil 2) [15]. Wang ve ark., (1999), bitkiler tarafından esas olarak selenat formunda alınan Se'nin, kloroplastlara taşındığını ve S (Kükürt) asimilasyonunu takip ettiğini, burada ATP sülfürilaz ile aktive edilerek adenozin-5'-fosfoselanata dönüştüğünü, Se'un enzimatik olarak ya da enzimatik olmayan yoldan selenite indirgendiğini ve selenit ile serinin reaksiyona…”

Section: Bitkide Selenyum Alımı Taşınımı Ve Dağılımıunclassified

Selenium Metabolism in Plants and Using in Agriculture

Topuz¹,

Topal²

2021

Uşak Üniversitesi Fen Ve Doğa Bilimleri Dergisi

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Selenium (se), whose main source is soil, has attracted the attention of researchers since its discovery in 1817. Selenium, which is found in different charge and forms, is found in inorganic form in soil clays and water, while it is found in organic form in plants, animals fed with plants, some seafood and humans. The main source of selenium, which is an essential micronutrient element for humans and animals and causes toxicity when consumed in excess, is plants. Various studies have shown the importance of selenium in preventing cancer, cardiovascular diseases and viral infections, as well as thyroid and immune system functions, fertility and aging. Plants play a unique role in recycling and transporting Selenium from the soil to the food chain. The Se concentration in agricultural products depends on the Se content and bioavailability in the soil. Food security problem will increase even more in changing environment and climate conditions. In these conditions, the effect of micro element applications, which is an application that is not applied much in practice, will be seen more clearly. Agricultural selenium use, and knowing the positive and negative returns are important for studies on selenium. This review was conducted to reveal the metabolic behavior of selenium, which is important for human health, in plants and its importance in stress physiology, although it is not an essential element to be taken.

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Biochemistry of Plant Selenium Uptake and Metabolism

Cited by 27 publications

References 86 publications

Integrative Transcriptome and Proteome Analysis Reveals the Absorption and Metabolism of Selenium in Tea Plants [Camellia sinensis (L.) O. Kuntze]

Integrative Transcriptome and Proteome Analysis Reveals the Absorption and Metabolism of Selenium in Tea Plants [Camellia sinensis (L.) O. Kuntze]

Seleno-Amino Acids in Vegetables: A Review of Their Forms and Metabolism

Selenium Metabolism in Plants and Using in Agriculture

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