Artículos de revistas
Bradyrhizobium sp. enhance ureide metabolism increasing peanuts yield
Fecha
2020-04-01Registro en:
Archives of Microbiology, v. 202, n. 3, p. 645-656, 2020.
1432-072X
0302-8933
10.1007/s00203-019-01778-x
2-s2.0-85075851685
1268945434870814
0000-0002-0968-0108
Autor
Universidade Estadual Paulista (Unesp)
Beatrice Comércio Importação Exportação Amendoim Ltda
El Carmen Sementes Do Brasil
Institución
Resumen
This study aimed to evaluate the effects of seed inoculation with Bradyrhizobium sp. and co-inoculation with Azospirillum brasilense. The seed treatments were as follows: control (without inoculation); A. brasilense (2 mL per kg−1 of seed); A. brasilense (4 mL per kg−1 of seed); Bradyrhizobium sp. (2 mL per kg−1 of seed); Bradyrhizobium sp. (4 mL per kg−1 of seed); A. brasilense + Bradyrhizobium sp. (2 mL of each strain per kg−1 of seed); and A. brasilense + Bradyrhizobium sp. (4 mL of each strain per kg−1 of seed). Peanut plants from seeds inoculated with Bradyrhizobium sp. and A. brasilense exhibited highest leaf concentration of photosynthetic pigments, carotenoids, nitrate, ammonia and amino acids. The inoculation of seeds with Bradyrhizobium sp. resulted in plants with increased concentrations of total soluble sugars, and ureides compared to the untreated plants. In contrast, seeds treated with A. brasilense alone resulted in plants exhibiting highest concentration of amino acids, which represent the highest concentration of nitrogen compounds in peanut plants. Seed inoculation with Bradyrhizobium sp. at a rate of 2 mL kg−1 was identified as the best treatment to promote increased biological nitrogen fixation and generate higher peanut yields.