Functional abilities of cultivable plant growth promoting bacteria
associated with wheat (Triticum aestivum L.)
crops |
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| Authors: | Fernanda da S. Moreira Pedro B. da Costa Rocheli de Souza Anelise Beneduzi Bruno B. Lisboa Luciano K. Vargas Luciane M. P. Passaglia |
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| Affiliation: | 1.Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil;2.Fundação Estadual de Pesquisa Agropecuária, Porto Alegre, RS, Brazil |
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| Abstract: | In the pursuit of sustainable agriculture, bioinoculants usage as providers of acrop''s needs is a method to limit environmental damage. In this study, acollection of cultivable putative plant growth promoting (PGP) bacteriaassociated with wheat crops was obtained and this bacterial sample wascharacterized in relation to the functional diversity of certain PGP features.The isolates were obtained through classical cultivation methods, identified bypartial 16S rRNA gene sequencing and characterized for PGP traits of interest.Functional diversity characterization was performed using Categorical PrincipalComponent Analysis (CatPCA) and Multiple Correspondence Analysis (MCA). The mostabundant genera found among the 346 isolates were Pseudomonas,Burkholderia, and Enterobacter. Occurrence of PGPtraits was affected by genus, niche, and sampling site. A large number of generagrouped together with the ability to produce indolic compounds; phosphatesolubilization and siderophores production formed a second group related tofewer genera, in which the genus Burkholderia has a greatimportance. The results obtained may help future studies aiming prospection ofputative plant growth promoting bacteria regarding the desired organism and PGPtrait. |
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| Keywords: | plant growth promoting bacteria Categorical Principal Component Analysis functional analysis Burkholderia genus |
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