Growth promotion and elicitor activity of salicylic acid in Achillea millefolium L.

Gorni, Pedro Henrique; Pacheco, Ana Cl audia

doi:10.5897/ajb2016.15320

Cited by 42 publications

(20 citation statements)

References 33 publications

(35 reference statements)

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“…The total phenolic compound contents of plants treated with 0.25 mM SA increased by 56.95% as compared to the control plants. These results corroborate those obtained by Gorni and Pacheco (2016) in yarrow plants treated with Increased biomass and salicylic acid elicitor activity in fennel (Foeniculum vulgare Miller) Gorni, P. H. et al SA, which showed increases in total phenolic compound contents of 68.11% and 69.74% with SA concentrations of 0.50 and 1.00 mM, respectively.…”

Section: Total Phenolic Compound and Flavonoid Contentssupporting

confidence: 89%

“…However, the essential oil yield did not show a significant response to the SA treatments. The response of plants to SA may depend on the species, as observed by Gorni and Pacheco (2016), who observed that 0.50 mM SA resulted in a significant increase in the essential oil yield in yarrow plants.…”

Section: Essential Oilmentioning

confidence: 89%

“…Results obtained by Gorni and Pacheco (2016) showed that yarrow plants treated with different concentrations of SA did not differ between treatments with respect to the LANL parameter. Increased biomass and salicylic acid elicitor activity in fennel (Foeniculum vulgare Miller)…”

Section: Plant Growthmentioning

confidence: 90%

“…Notable amongst these is the synthesis of phenolic compounds, known as potent inhibitors of oxidative stress (KOVÁCIK et al, 2009). Exogenous SA, even at low concentrations, interacts with the stress-signalling mechanisms (GORNI; PACHECO, 2016). Thus increases in the SA levels may trigger cell signalling that regulates the expression of genes encoding enzymes related to the phenylpropanoid pathway (including the total phenolic compounds, antioxidant activity, flavonoids).…”

Section: Antioxidant Activitymentioning

confidence: 99%

“…Plants treated with 0.5 mM SA showed increases in the carotenoid and phenolic compound levels, besides additional increases in compounds such as chlorophyll and lutein. Yarrow (Achillea millefolium L.) treated with 0.50 and 1.00 mM SA showed greater biomass accumulation, higher chlorophyll "a", total chlorophyll and total phenolic compound contents and greater antioxidant activity (GORNI; PACHECO, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Increased biomass and salicylic acid elicitor activity in fennel (Foeniculum vulgare Miller)

Gorni

Brozulato

Lourenção

et al. 2017

Braz. J. Food Technol.

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Fennel is a medicinal and aromatic plant that is commonly used in Brazilian cuisine and in the manufacture of cosmetics. The exogenous application of salicylic acid (SA) can act on the hormonal action stimulating plant growth and development and the induction of plant defense responses under stressful conditions. The objective of this study was to determine the effect of the foliar application of SA on the production of biomass and synthesis of secondary compounds in fennel plants. For this purpose, an experiment was carried out in potted plants in a greenhouse with the application of SA at concentrations of 0, 0.25, 0.50 and 1.00 mM, 20 days and 90 days after transplanting the seedlings to the pots. The effect of SA on the metabolism of the fennel plants was evaluated using growth and biochemical parameters. The exogenous application of SA increased the plant shoots dry weight at the concentration of 0.50 mM, whereas an improved dry root mass and root/shoot ratio was achieved with the concentration of 0.25 mM. The elicitor effect was observed at 0.25 mM of SA, resulting in greater economic value of the biomass due to the higher production of secondary compounds, such as phenolic compounds and flavonoids. In addition, an increase in antioxidant activity of the plant extracts and of the essential oil content of the species was obtained at the concentration of 1.00 mM. Keywords: Fennel; Antioxidant activity; Phenolic compounds; Essential oil; Secondary metabolism. ResumoO funcho é uma planta medicinal, condimentar e ornamental, utilizada na culinária brasileira e na fabricação de cosméticos e de fitoterápicos. A aplicação exógena do ácido salicílico (AS) pode agir na ação hormonal, estimulando o crescimento e o desenvolvimento vegetal, e na indução das respostas de defesa das plantas. O objetivo deste trabalho foi determinar o efeito da aplicação foliar de AS sobre a produção de biomassa e a síntese de compostos secundários em plantas de funcho, uma espécie medicinal produzida comercialmente como matéria-prima para a indústria mundial de fitomedicamentos. O experimento foi conduzido em plantas envasadas em estufa, sem controle de umidade e temperatura. A aplicação do AS foi efetuada nas concentrações 0; 0,25; 0,50 e 1,00 mM, aos 20 dias e 90 dias após o transplante das mudas para os vasos. O efeito do AS sobre o metabolismo das plantas de funcho foi avaliado através de parâmetros biométricos de crescimento e bioquímicos. Conclui-se que a aplicação exógena de AS constitui-se em técnica de manejo vantajosa para a obtenção de aumento na biomassa das plantas de funcho: massa seca da parte aérea, na concentração de 0,50 mM, e massa seca de raízes e razão raiz/parte aérea, na concentração de 0,25 mM. O efeito elicitor foi obtido na concentração de 0,25 mM de AS, resultando em maior valor econômico da matéria-prima, devido ao aumento na produção de compostos secundários, tais como fenóis totais e flavonoides, além de um concomitante aumento na atividade antioxidante do extrato vegetal e no teor do óleo essencial ...

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Section: Total Phenolic Compound and Flavonoid Contentssupporting

confidence: 89%

Section: Essential Oilmentioning

confidence: 89%

Section: Plant Growthmentioning

confidence: 90%

Section: Antioxidant Activitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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