L-Ascorbic Acid: A Multifunctional Molecule Supporting Plant Growth and Development

Gallie, Daniel

doi:10.1155/2013/795964

Cited by 220 publications

(144 citation statements)

References 201 publications

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“…Se and/or AsA induced increases in ascorbate contents paralleled the rises in GSH. These results are in full agreement with Gallie, who reports a coordinate balance between these two antioxidants (Gallie, 2013). It has been hypothesized that alterations in ascorbate levels act as a signal for changes in the GSH pool size (Gallie, 2013).…”

Section: The Antioxidative System and Antioxidant Activities (Free Rasupporting

confidence: 91%

The modified qualities of basil plants by selenium and/or ascorbic acid

Ardebili

Ardebili²,

Jalili³

et al. 2015

Turk J Bot

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IntroductionAscorbic acid (AsA) is one of the most critical low molecular weight antioxidants and has control over crucial processes, including the cell cycle and cell wall expansion (Noctor and Foyer, 1998). Ascorbic acid, a water soluble compound, is known as a major redox buffer, one of the most abundant antioxidants, and a required cofactor for several enzymes. Its multiple implications in various critical aspects of key physiological processes like cell division, growth, signal transduction, photosynthesis, and hormone biosynthesis are well documented (Gallie, 2013). Ascorbate is regarded as the first line of defense against detrimental effects of active oxygen species (AOS), and protects plant cells from various abiotic and biotic oxidative stressors (Suza et al., 2010). It has been stated that foliarly supplemented ascorbate may be an effective treatment for improving tolerance in stress exposed plants in arid and semi-arid regions (Dolatabadian et al., 2009). In addition, it has been proposed that various crucial compounds, including phenolics, carotenoids, tocopherols, chlorophyll, and ascorbic acid all possess a key role in the prevention of different diseases related to oxidative stress such as cardiovascular diseases, cancer, atherosclerosis, inflammation, neurodegenerative diseases, diabetes, and other chronic diseases (Šircelj et al., 2010).

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Section: The Antioxidative System and Antioxidant Activities (Free Rasupporting

confidence: 91%

The modified qualities of basil plants by selenium and/or ascorbic acid

Ardebili

Ardebili²,

Jalili³

et al. 2015

Turk J Bot

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“…As it is known, ascorbic acid is the co-factor of those enzymes, which support anthocyanins synthesis (Gallie, 2013). Though, according to our experimental results, the evident relation between the content of ascorbic acid and synthesis of anthocianins was not revealed.…”

Section: Anthocyaninscontrasting

confidence: 65%

Influence of Ultraviolet Irradiation and Acid Precipitations on the Content of Antioxidants in Wheat Leaves

Badridze¹

2015

Appl Ecol Env Res

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Abstract. Combined effect of pre-sowing treatment with UV and post-emergence spraying with acid solution on antioxidant system of wheat species (Triticum aestivum L.-soft wheat, T. durum Dest. -durum wheat, T. macha Dek. Et Men. -macha wheat (endemic of Georgia, partly wild, relict species), and three varieties of T. persicum Zhuk. -dika: T. persicum var. stramineum, T. persicum var. fuliginosum and T. persicum var. rubiginosum (white, black and red dika respectively) has been studied. The combination of two stresses induced full stimulation of the enzymatic system (catalase, peroxidase), caused increase of phenolic substances content (16-58%) and anthocyanins synthesis in leaves of tested species. Impact of both stresses increased content of proteins in leaves of Macha wheat, soft wheat and white and red varieties of dika, while in rest species content of proteins diminished. Influence of two stresses diminished the activity of the protective ascorbate system in leaves of all tested species, except the durum wheat. Normal termination of vegetation cycle and grain harvest of all tested species points to their resistance to the applied stresses.

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“…The cultivars Early Wonder and Itapuã could not be differentiated, except at 2 mM ascorbic acid, with Itapuã showing a relatively greater germination (Table 1). Ascorbic acid is involved in the regulation of cell elongation and progression through the cell cycle (GALLIE, 2013), which are important processes during germination. Goel et al (2003) verified that water and ascorbic acid priming promoted germination of artificially aged cotton seeds, with a concomitant reduction in lipid peroxidation and partial restoration of the activity of antioxidant enzymes (catalase, superoxide dismutase, peroxidase and glutathione reductase).…”

Section: Resultsmentioning

confidence: 99%

Beet seed priming with growth regulators

Dotto

Silva

2017

SCA

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Seed priming is a technique used to induce metabolic germination processes. Use of growth regulators in seed priming may facilitate increments in physiological processes during seed germination. The objective of this study was to evaluate the effect of priming and growth regulators on beet seed germination. The treatments were cultivar type (Early Wonder, Itapuã and Maravilha) and seed priming technique, which included a control (unconditioned seed) standard hydropriming (water) and a conditioning with salicylic, gibberellic and ascorbic acids, respectively. The treatments were defined by initially testing 0, 1, 2 and 4 mM ascorbic, gibberellic and salicylic acids. Before seed priming, imbibition seed curves were established to determine the optimal conditioning time. After conditioning, the germination, rate of germination, seedling length and seedling dry weight were evaluated. First, the appropriate dosage for conditioning was determined by using a completely randomized experimental design, with four replications per cultivar. Then, a 3 x 5 (cultivar x conditioning technique) factorial design was adopted. Whenever the results were significant by variance analysis, regression analysis was performed. Finally, Tukey's test was used to compare the means at P=0.05. Beet seed priming alters the potential of germination and is influenced by the cultivar and conditioning technique. Pretreatment with 1−2 mM ascorbic, gibberellic or salicylic acids, respectively, promotes beet seed germination, whereas at 1−3 mM, the growth of roots and shoots of beet seedlings is promoted. The most effective techniques to promote germination and growth of sugar beet seedlings were priming with water, salicylic acid or gibberellic acid. Key words: Beta vulgaris. Hydropriming. Gibberellic acid. Salicylic acid. Ascorbic acid. ResumoO condicionamento fisiológico é uma técnica que permite a ativação dos processos metabólicos e fisiológicos na germinação das sementes por meio da utilização de reguladores de crescimento. Desta forma, objetivou-se avaliar o efeito do condicionamento fisiológico de sementes de beterraba com reguladores de crescimento. Foram utilizadas três cultivares: Early Wonder, Itapuã e Maravilha, submetidas a cinco tipos de condicionamentos: testemunha (semente não condicionada) hidrocondicionamento padrão (água), condicionamento com os ácidos salicílico, giberélico e ascórbico. Para definição dos tratamentos, foram testadas doses de 0; 1; 2 e 4 mMol.L -1 dos ácidos. Previamente ao condicionamento, foram realizadas as curvas de embebição das sementes, para determinação do tempo ideal de condicionamento, logo após, as sementes foram avaliadas quanto à porcentagem e velocidade de germinação, comprimento e massa seca de plântulas. O delineamento experimental utilizado foi inteiramente casualizado com quatro repetições, separado para cada cultivar, determinando-se as dosagens adequadas. Na segunda etapa foi adotado esquema fatorial 3 x 5 (cultivares x tipo de condicionamento). Os resultados foram submetidos a análise ...

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L-Ascorbic Acid: A Multifunctional Molecule Supporting Plant Growth and Development

Cited by 220 publications

References 201 publications

The modified qualities of basil plants by selenium and/or ascorbic acid

The modified qualities of basil plants by selenium and/or ascorbic acid

Influence of Ultraviolet Irradiation and Acid Precipitations on the Content of Antioxidants in Wheat Leaves

Beet seed priming with growth regulators

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