Efeito Do Extrato Aquoso De Diferentes Espécies De Boldo Sobre a Germinação E Indice Mitótico De Allium Cepa L.

Iganci, João Ricardo Vieira; Bobrowski, Vera Lúcia; Heiden, Gustavo; Stein, Vanessa Cristina; Rocha, Beatriz Helena Gomes

doi:10.1590/1808-1657v73p0792006

Cited by 37 publications

(9 citation statements)

References 5 publications

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“…25 The results obtained referring to germination and GSI can be explained by the fact that the allelopathic effect in plants is most often expressed not by the amount of germinated seeds, but rather by the retardation of their germination. 26 Monoterpenoids may have allelopathic activity, which interferes with germination and plant development. Moreover, these substances are able to affect physiological processes, such as photosynthesis, chlorophyll synthesis, lipid accumulation in the cytoplasm, and reduction of organelles because of ruptured membranes.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

Phytotoxicity and Cytotoxicity of Essential Oil from Leaves of Plectranthus amboinicus, Carvacrol, and Thymol in Plant Bioassays

Pinheiro¹,

Costa²,

Alves³

et al. 2015

J. Agric. Food Chem.

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The essential oil of Plectranthus amboinicus and its chemotypes, carvacrol and thymol, were evaluated on the germination and root and aerial growth of Lactuca sativa and Sorghum bicolor and in acting on the cell cycle of meristematic root cells of L. sativa. The main component found in the oil by analysis in gas chromatography-mass spectrometry and gas chromatography flame ionization detection was carvacrol (88.61% in area). At a concentration of 0.120% (w v(-1)), the oil and its chemotypes retarded or inhibited the germination and decreased root and aerial growth in monocot and dicot species used in the bioassays. In addition, all substances caused changes in the cell cycle of the meristematic cells of L. sativa, with chromosomal alterations occurring from the 0.015% (w v(-1)) concentration. The essential oil of P. amboinicus, carvacrol, and thymol have potential for use as bioherbicides.

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Section: ■ Materials and Methodsmentioning

confidence: 99%

Phytotoxicity and Cytotoxicity of Essential Oil from Leaves of Plectranthus amboinicus, Carvacrol, and Thymol in Plant Bioassays

Pinheiro¹,

Costa²,

Alves³

et al. 2015

J. Agric. Food Chem.

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“…Em muitos estudos e no presente trabalho, os efeitos alelopáticos podem ser observados tanto sobre a germinação quanto sobre o crescimento da plântula. O efeito é mais drástico sobre o crescimento do que sobre a germinação (Ferreira e Áquila, 2000;Iganci et al, 2006). Resultados similares já foram encontrados em outros trabalhos conduzidos em espécies pioneiras (Jacobi e Ferreira, 1991;Delachiave et al, 1999;Maraschin-Silva e Áquila, 2005).…”

Section: Resultados E Discussão Resultados E Discussão Resultados E D...unclassified

Alelopatia de <em>Baccharis dracunculifolia</em> DC. sobre a germinação e desenvolvimento de espécies cultivadas

Gusman

Bittencourt

Vestena

2008

Acta Sci. Biol. Sci.

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“…Different concentrations of dye like 100 ppm, 250 ppm, 500 ppm, 750 ppm and 1000 ppm were prepared by diluting the stock solution with distilled water. In the assessment of the cytotoxic and genotoxic impact of various chemical compounds, plant bioassays have been deemed a sensitive, less expensive and non-demanding test material (Giri, 1991;Iganci et al, 2006). They are now recognised as a useful bio-indicator that can be easily linked to the outcomes of human testing systems.…”

Section: Methodsmentioning

confidence: 99%

Cytotoxic and Mito depressive potential of Sunset Yellow FCF on Chara vulgaris (n=28)

Bhattacharjee¹

2022

EEC

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The food industry is one of the fastest growing economic sectors in the world, generating significant profits. Because the colour of our food visually arouses our desire, manufacturers add synthetic food colours to a variety of foods to make them more alluring. Synthetic food colours, being chemical in nature, are expected to be detrimental to humans. Children are more likely to be fascinated by foods with bright colour additives, putting them at high risk. Sunset Yellow FCF, a widely used yellow synthetic food colour, has been investigated for its cytotoxic and mito depressive potential in this study. Sunset yellowâs cytotoxic effects were tested in Chara vulgaris (n=28) using mitotic index, nuclear, and chromosomal assays. The mitotic index decreased dramatically with increase in the concentration and time of treatment, indicating that Sunset yellow was mitodepressive in nature. A wide spectrum of nuclear and chromosomal abnormalities also have been discovered, with the incidence of abnormalities increasing as the Sunset Yellow concentrations and treatment period rose. These findings clearly indicate that the Sunset Yellow has cytotoxic and mito depressive potential. Utmost caution must be taken while using Sunset yellow as a food additive.

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Efeito Do Extrato Aquoso De Diferentes Espécies De Boldo Sobre a Germinação E Indice Mitótico De Allium Cepa L.

Cited by 37 publications

References 5 publications

Phytotoxicity and Cytotoxicity of Essential Oil from Leaves of Plectranthus amboinicus, Carvacrol, and Thymol in Plant Bioassays

Phytotoxicity and Cytotoxicity of Essential Oil from Leaves of Plectranthus amboinicus, Carvacrol, and Thymol in Plant Bioassays

Alelopatia de <em>Baccharis dracunculifolia</em> DC. sobre a germinação e desenvolvimento de espécies cultivadas

Cytotoxic and Mito depressive potential of Sunset Yellow FCF on Chara vulgaris (n=28)

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