Enzymatic activity in azuki bean seedlings subjected to salinity and water deficiency

Authors

DOI:

https://doi.org/10.5433/1679-0359.2021v42n1p419

Keywords:

Antioxidant enzymes, Vigna angularis L., Water stress, Salinity stress.

Abstract

Salinity and water deficiency are factors that limit the initial development of crops, directly interfering with the efficiency of food production. Studies on the behavior of cultivable species under stress are important to determine management actions; therefore, the mechanisms involved in post-stress recovery should be investigated. The objective of this study was to evaluate the effect of water and salt stress on enzymatic activity in azuki bean seedlings. The experimental design was a completely randomized, 4 × 6 factorial arrangement (four reagents: CaCl2, KCl, NaCl, and polyethylene glycol 6000 (PEG 6000) × six osmotic potentials: 0.0, -0.2, -0.4, -0.8, -1.2, and -1.6 MPa). The quantification of protein content and analysis of enzyme (catalase, peroxidase, and phenylalanine ammonia-lyase) activity in seedlings were performed on the 10th day after sowing. NaCl is toxic and recovery of azuki bean seedlings was less likely under salt stress owing to reduced enzymatic activity. In contrast, seedlings subjected to KCl treatment showed increased production of antioxidant enzymes.

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Author Biographies

Mônica Satie Omura, Universidade Estadual de Londrina

Enga Agra, Dra em Agronomia, Universidade Estadual de Londrina, UEL, Departamento de Agronomia, Londrina, PR, Brasil.

Gustavo Henrique Freiria, Universidade do Estado de Minas Gerais

Prof. Dr., Universidade do Estado de Minas Gerais, UEMG, Unidade Ituiutaba, MG, Brasil

Verônica Pellizzaro, Universidade Estadual de Londrina

Discente do Curso de Doutorado do Programa de Pós-Graduação Agronomia, UEL, Departamento de Agronomia, Londrina, PR, Brasil

Douglas Junior Bertoncelli, Universidade Estadual de Londrina

Engo Agro, Dr. em Agronomia, Universidade Estadual de Londrina, UEL, Departamento de Agronomia, Londrina, PR, Brasil.

Felipe Favoretto Furlan, Instituto de Desenvolvimento Rural do Paraná

Engº Agrº, Dr., Instituto de Desenvolvimento Rural do Paraná, IAPAR, EMATER, Pitangueiras, PR, Brasil.

Eli Carlos de Oliveira, Omnia Brasil

Pesquisador Dr., Omnia Brasil, Leme, SP, Brasil.

Lúcia Sadayo Assari Takahashi, Universidade Estadual de Londrina

Profa Dra Sênior, Departamento de Agronomia, Programa de Pós-Graduação em Agronomia, UEL, Londrina, PR, Brasil, Bolsista Produtividade da Fundação Araucária.

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Published

2021-01-19

How to Cite

Omura, M. S., Freiria, G. H., Pellizzaro, V., Bertoncelli, D. J., Furlan, F. F., Oliveira, E. C. de, & Takahashi, L. S. A. (2021). Enzymatic activity in azuki bean seedlings subjected to salinity and water deficiency. Semina: Ciências Agrárias, 42(1), 419–428. https://doi.org/10.5433/1679-0359.2021v42n1p419

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Section

Communication

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