Endophytic bacteria as biological control agents in rice fields / Bactérias endofíticas como agentes de controle biológico na orizicultura

ABSTRACT

This paper presents some data on the interactions of the bacteria and the host plants, considering the symbionts and pathogens of plants of agricultural importance, focusing on rice fields. This article addresses issues related to these endophytic bacteria, such as (i) endophytes and their interactions with the cultivated plants; (ii) promoting rhizobacteria plant growth [plant growth-promoting rhizobacteria (PGPR)] and its application in biological control; (iii) endophytic bacteria PGPR against the biological control of plant pathogens; (iv) application of endophytic recombinant in agricultural biotechnology. This paper ends show the point of view and perspectives of the authors about bacteria that live associated with the plants grown in agroecosystems.

RESUMO

Esta publicaçمo apresenta alguns dados sobre as interaçُes entre as bactérias e as plantas hospedeiras, considerando os simbiontes e os patَgenos das plantas de importância agrيcola, com ênfase nos agroecossistemas de arroz irrigado. Neste trabalho foram abordados aspectos relacionados a essas bactérias endofيticas, tais como (i) endofيticos e suas interaçُes com as plantas cultivadas; (ii) rizobactérias promotoras do crescimento vegetal [plant growth-promoting rhizobacteria (PGPR)] e sua aplicabilidade no controle biolَgico; (iii) bactérias endofيticas versus PGPR no controle biolَgico de fitopatَgenos; (iv) aplicaçمo de recombinantes endofيticos na agrobiotecnologia. No final do artigo estمo apresentadas as opiniُes e perspectivas dos autores sobre as bactérias que vivem associadas às plantas cultivadas nos agroecossistemas.