Resistence induction in Brassica oleracea var. acephala to xanthomonas campestris pv. campestris and growth promotion by endophytic / bactéria Indução de resistência em Brassica oleracea var. acephala à Xantomonas campestris pv. campestris e promoção de crescimento por bactérias endofíticas

• Autor(a) principal: Silva, Clayton dos Santos
• Data de Publicação: 2019
• Outros Autores: Araújo, Romário Guimarães Verçosa de, Lima, Jessé Rafael Bento de, Santos, Tania Marta Carvalho dos, Nascimento, Matus da Silva, Montaldo, Yamina, Silva, João Manoel da
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista Veras
• Texto Completo: https://ojs.brazilianjournals.com.br/ojs/index.php/BRJD/article/view/4208
• topic: black rot; crucifer; biological control; beneficial bacteria.

Among the most economically expressive agricultural crops, cabbage (Brassica oleracea var. acephala) stands out as one of the most popular in human feed. However, Brazilian production has been suffering from the incidence of pests and diseases that affect the crops, and black rot of crucifer (BRC), the main cause of economic losses of its producers. In view of the above, the objective of this study was to identify endophytic bacteria to induce resistance to Xanthomonas campestris pv. campestris, causal agente of BRC, and promoting plant growth in B. oleracea. The experiments were conducted at the Laboratory of Microbiology of the Agricultural Sciences Center of the Federal University of Alagoas in Rio Largo/AL, Brazil. B. oleracea plants was cultivated with inoculation of five bacterial endophytes (ISO31, ISO33, ISO34, ISO48 and ISO51) in vases containing natural and sterilized soil for lesion estimation of in vivo pathogen and biometrics agronomic characteristics of production. The pathogen was inoculated with aid of a disposable syringe in the leaves. The data was subject to analysis of variance and the Scott Knott Test (p?0,05). Isolate 34 showed the best performance in the promotion of resistance and plant growth in comparison to the other isolates, not showing significant interferences of the BRC in the development of the inoculated plants and in the biocontrol of the disease in the field.