Endophytic Bacteria Used as Bioinoculants in Micropropagated Banana Seedlings

Abstract

The use of bio-fertilizers and microbial inoculants that promote plant growth and increased yield has been accepted as an alternative to reduce the use of chemical fertilizers. The objective of the present study was to evaluate the effect of plant growth promoting bacteria inoculation on growth and quality of micropropagated banana seedlings ‘Prata Anã’. The experimental design was completely randomized, with four replications and the treatments consisted of 24 isolates of endophytic bacteria. The isolates EB-50 (Bacillus sp.) and EB-133 (Bacillus amyloliquefaciens) characterized as diazotrophic, the EB-51 (Bacillus pumilus) indicate for inorganic phosphate solubilization and EB-55(Bacillus subtilis) and EB-40 (Bacillus sp.) indole-3-acetic acid producers have provided significant increases for length, pseudostem diameter, fresh masses and dry masses in ‘Prata Anã’ micropropagated banana seedlings.

Endophytic Bacterial and Fungi Associated to Banana Leaves (Musa spp.) Cultivated Under Organic Management

“…Several papers are already published showing endophytic microorganisms from bananas (Tables 3 and 4). Isolated endophytic fungi and bacteria from banana produced increase growth promotion (Andrade et al, 2014;Kartick et al, 2017;Muthuri et al, 2012;Souza et al, 2017;Thomas & Soly, 2009), protect plants against prejudicial bacterial, fungal, nematodes and insect pests (Su et al, 2017;Souza et al, 2014;Thangalevu & Gopi, 2015;Zakaria & Rahman, 2011). Most of the studies related to isolation of endophytes from plant hosts are performed in cultures submitted to use of fertilizers and chemical products aiming increasing production and reduction of diseases and pests.…”

“…Other beneficial properties were also added as endophytes producing growth hormones, able to fix atmospheric nitrogen and causing phosphate solubilization (Karthik et al, 2017;Souza et al, 2013;Souza et al, 2017;Muthuri et al, 2012;Ting et al, 2008;Andrade et al, 2014;Benzon et al, 2014). In Brazil, the Roraima state located in the Amazon North region of the country is expanding the production of banana.…”