PROTECTIVE ROLE OF 2-BORNEOL IN THE EMERGENCE OF Allium cepa SEEDS EXPOSED TO NaCl

Autores

  • Larisse Bernardino dos Santos Regional University of Cariri (URCA), Biology and Toxicology Laboratory, Crato, Ceará, Brazil
  • Jailson Renato de Lima Silva Regional University of Cariri (URCA), Biology and Toxicology Laboratory, Crato, Ceará, Brazil
  • Carlos Vinicius Barros Oliveira Regional University of Cariri (URCA), Biology and Toxicology Laboratory, Crato, Ceará, Brazil
  • Adrielle Rodrigues Costa Regional University of Cariri (URCA), Ceará,Brazil
  • Maria Keliane Alves de Souza Regional University of Cariri (URCA), Biology and Toxicology Laboratory, Crato, Ceará, Brazil
  • Thalyta Julyanne Silva de Oliveira Regional University of Cariri (URCA), Ceará,Brazil
  • Daniel Honorato Neves Regional University of Cariri (URCA), Biology and Toxicology Laboratory, Crato, Ceará, Brazil
  • José Wellington Macêdo Viana Regional University of Cariri (URCA), Ceará,Brazil
  • Antonio Ivanildo Pinho Regional University of Cariri (URCA), Ceará,Brazil
  • Pedro Silvino Pereira Regional University of Cariri (URCA), Biology and Toxicology Laboratory, Crato, Ceará, Brazil
  • Ana Cristina Diogo Gomes de Melo Federal University of Cariri (URCA), Ceará,Brazil
  • Cícera Maria Rocha Sousa Regional University of Cariri (URCA), Ceará,Brazil
  • Luiz Marivando Barros Regional University of Cariri (URCA), Biology and Toxicology Laboratory, Crato, Ceará, Brazil
  • Jean Paul Kamdem Regional University of Cariri (URCA), Biology and Toxicology Laboratory, Crato, Ceará, Brazil
  • Antonia Eliene Duarte Regional University of Cariri (URCA), Biology and Toxicology Laboratory, Crato, Ceará, Brazil

Palavras-chave:

Oxidative stress, salinity, phytotoxicity, borneol, A. cepa

Resumo

It has been proposed that borneol acts as a compound responsible for inducing tolerance to salt stress in the Allium cepa model organism. This study investigated the effect of borneol variation (100, 300 and 500 µg/mL) on the phytotoxic potential in seed emergence, growth of seedlings, roots and leaves in A. cepa under field conditions, normal and induced by NaCl (150 mM). Changes in and lipid peroxidation (LPO) levels was evaluated as markers of oxidative stress, and the antioxidant activity of borneol was evaluated by DPPH test. The exposure of A. cepa to 150 mM of NaCl significantly decreased the emergence capacity of the seeds. Nevertheless, borneol at concentrations of 100 and 300 µg/mL significantly reduced the salt stress and improved the emergence rate and the number of roots. Borneol significantly reduced lipid peroxidation (LPO) caused by NaCl, but, did not have any effect on the total iron content.  Borneol exhibited DPPH radical scavenging activity similar to that of ascorbic acid used as standard antioxidant. The nutrients with the highest accumulation in the soil were P> S> Ca> N> K> Mg. Moreover, the pH was ideal for the cultivation of the species. The results of this study suggest that borneol can be used as a potential tolerance regulator to improve resistance to salt stress in Allium cepa.

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2022-12-31

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Larisse Bernardino dos Santos, Jailson Renato de Lima Silva, Carlos Vinicius Barros Oliveira, Adrielle Rodrigues Costa, Maria Keliane Alves de Souza, Thalyta Julyanne Silva de Oliveira, … Antonia Eliene Duarte. (2022). PROTECTIVE ROLE OF 2-BORNEOL IN THE EMERGENCE OF Allium cepa SEEDS EXPOSED TO NaCl. South American Journal of Basic Education, Technical and Technological , 9(1), 164–184. Recuperado de https://teste-periodicos.ufac.br/index.php/SAJEBTT/article/view/4353

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