Data/hora: 23/06/2024 03:50:08

Biblioteca(s): | Embrapa Arroz e Feijão.
Data corrente: | 30/11/2018
Data da última atualização: | 30/11/2018
Autoria: | RÊGO, M. C. F.; CARDOSO, A. F.; FERREIRA, T. da C.; FILIPPI, M. C. C. de; BATISTA, T. F. V.; VIANA, R. G.; SILVA, G. B. da.
Afiliação: | MARCELA C. F. REGO, UNIVERSIDADE FEDERAL DO AMAZONAS; ALINE F. CARDOSO, UNIVERSIDADE FEDERAL DO AMAZONAS; THAYNA DA C. FERREIRA, UNIVERSIDADE FEDERAL DO AMAZONAS; MARTA CRISTINA CORSI DE FILIPPI, CNPAF; TELMA F. V. BATISTA, UNIVERSIDADE FEDERAL DO AMAZONAS; RAFAEL G. VIANA, UNIVERSIDADE FEDERAL DO AMAZONAS; GISELE BARATA DA SILVA, UNIVERSIDADE FEDERAL DO AMAZONAS.
Título: | The role of rhizobacteria in rice plants: growth and mitigation of toxicity.
Ano de publicação: | 2018
Fonte/Imprenta: | Journal of Integrative Agriculture, v. 17, n. 12, p. 2636-2647, 2018.
ISSN: | 2095-3119
DOI: | 10.1016/S2095-3119(18)62039-8
Idioma: | Inglês
Conteúdo: | Allelopathic compounds reduce the growth and productivity of upland rice plants, especially in consecutive plantations. The rhizobacteria Pseudomonas fluorescens BRM-32111 and Burkholderia pyrrocinia BRM-32113 have been recorded as growth promoters in rice. This study was developed to understand the effect of the application of rhizobacteria on upland rice plants in consecutive plantations. Experiments were conducted in a completely randomized design with four replications of four treatments: rice seed inoculated with P. fluorescens BRM-32111, rice seed inoculated with B. pyrrocinia BRM-32113 (both sown on soil with rice residue), non-inoculated plants sown on soil with rice residue (control with residue (WR)), and non-inoculated plants on soil with no residue (NR). Roots and seedling growth were adversely affected by allelopathic compounds in control WR plants. Plants inoculated with rhizobacteria P. fluorescens BRM-32111 or B. pyrrocinia BRM-32113 induced an increase of 88% in biomass, 3% in the leaf area, 40% in length, 67% in root biomass, 21% in chlorophyll a, 53% in chlorophyll (a+b), 50% in rate of carbon assimilation (A), 227% in A/rubisco carboxylation efficiency (Ci) and 63% in water use efficiency (WUE) compared to control WR plants. These results indicate that rhizobacteria P. fluorescens BRM-32111 and B. pyrrocinia BRM-32113 increase the tolerance of rice plants to stress from allelochemicals. There are possible practical agricultural applications of these results for mitigating the effects of environmental allelochemistry on upland rice.
Thesagro: | Arroz; Bactéria; Fitotoxicidade; Oryza Sativa; Pseudomonas Fluorescens.
Thesaurus Nal: | Burkholderia pyrrocinia; Plant growth-promoting rhizobacteria; Rice.
Categoria do assunto: | S Ciências Biológicas
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (35296-1) - UPC - AP - DD - 2018 -  - 2018 - DIS