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      Acclimatization of banana plantlets inoculated with Bacillus sp. and irrigated with low-salinity water Translated title: Aclimatização de mudas de bananeira inoculadas com Bacillus sp. e irrigadas com água de baixa salinidade

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          Abstract

          ABSTRACT Plant growth-promoting bacteria emerge as an alternative to attenuate abiotic stresses in plants such as salinity. The objective of this study was to evaluate the effects of Bacillus sp. strains 186 and 109 on the acclimatization of banana cv. ‘Prata Catarina’ irrigated with saline water. The experiment was conducted in a completely randomized design in a 4 × 2 factorial scheme, with 4 growth-promotion treatments, subjected to 2 levels of electrical conductivity of irrigation water. Irrigation with saline water decreased the number of leaves, leaf area, transpiration rate, stomatal conductance, and CO2 assimilation rate in banana leaves, regardless of inoculation with bacterial strains. The use of Bacillus sp. strain 109 promoted increments in phosphorus and iron contents in banana plants irrigated with low-salinity water.

          Translated abstract

          RESUMO Bactérias promotoras de crescimento vegetal surgem como alternativa para atenuar estresses abióticos em plantas como a salinidade. O objetivo deste estudo foi avaliar os efeitos do Bacillus sp. cepas 186 e 109 na aclimatização da cv. ‘Prata Catarina’ irrigada com água salina. O experimento foi conduzido em delineamento inteiramente casualizado em esquema fatorial 4 × 2, com 4 tratamentos promotores de crescimento, submetidos a 2 níveis de condutividade elétrica da água de irrigação. Irrigação com água salina diminuiu o número de folhas, a área foliar, a taxa de transpiração, a condutância estomática e a taxa de assimilação de CO2 nas folhas de bananeira, independentemente da inoculação com cepas bacterianas. O uso de Bacillus sp. cepa 109 promoveu incrementos nos teores de fósforo e ferro em bananeiras irrigadas com água de baixa salinidade.

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          Most cited references30

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          Plant growth-promoting bacterial endophytes.

          Bacterial endophytes ubiquitously colonize the internal tissues of plants, being found in nearly every plant worldwide. Some endophytes are able to promote the growth of plants. For those strains the mechanisms of plant growth-promotion known to be employed by bacterial endophytes are similar to the mechanisms used by rhizospheric bacteria, e.g., the acquisition of resources needed for plant growth and modulation of plant growth and development. Similar to rhizospheric plant growth-promoting bacteria, endophytic plant growth-promoting bacteria can act to facilitate plant growth in agriculture, horticulture and silviculture as well as in strategies for environmental cleanup (i.e., phytoremediation). Genome comparisons between bacterial endophytes and the genomes of rhizospheric plant growth-promoting bacteria are starting to unveil potential genetic factors involved in an endophytic lifestyle, which should facilitate a better understanding of the functioning of bacterial endophytes.
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            Plant Growth-Promoting Microorganisms for Environmental Sustainability.

            Agrochemicals used to meet the needs of a rapidly growing human population can deteriorate the quality of ecosystems and are not affordable to farmers in low-resource environments. Here, we propose the use of plant growth-promoting microorganisms (PGPMs) as a tool for sustainable food production without compromising ecosystems services.
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              Screening, plant growth promotion and root colonization pattern of two rhizobacteria (Pseudomonas fluorescens Ps006 and Bacillus amyloliquefaciens Bs006) on banana cv. Williams (Musa acuminata Colla)

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                Author and article information

                Journal
                rbeaa
                Revista Brasileira de Engenharia Agrícola e Ambiental
                Rev. bras. eng. agríc. ambient.
                Departamento de Engenharia Agrícola - UFCG (Campina Grande, PB, Brazil )
                1415-4366
                1807-1929
                May 2023
                : 27
                : 5
                : 407-414
                Affiliations
                [5] Redenção orgnameUniversidade da Integração Internacional da Lusofonia Afro-Brasileira Brazil
                [2] Crateús Ceará orgnameInstituto Federal de Educação Ciências e Tecnologia do Ceará orgdiv1Campus Crateús Brazil
                [4] Fortaleza Ceará orgnameUniversidade Federal do Ceará orgdiv1Centro de Ciências Agrárias orgdiv2Departamento de Engenharia Agrícola Brazil
                [3] Fortaleza Ceará orgnameEmbrapa Agroindústria Tropical Brazil
                Article
                S1415-43662023000500407 S1415-4366(23)02700500407
                10.1590/1807-1929/agriambi.v27n5p407-414
                0ccf395a-54f6-4858-a296-561fb1659d6f

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 29 August 2022
                : 23 January 2023
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 30, Pages: 8
                Product

                SciELO Brazil

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                Articles

                bactérias promotoras do crescimento,nutrição,taxa fotossintética,growth-promoting bacteria,nutrition,photosynthetic rate

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