Bacillus subtilis Inoculation Improves Nutrient Uptake and Physiological Activity in Sugarcane under Drought Stress

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dc.contributor.authorda Fonseca, Mariley de Cássia [UNESP]
dc.contributor.authorBossolani, João William [UNESP]
dc.contributor.authorde Oliveira, Sirlene Lopes [UNESP]
dc.contributor.authorMoretti, Luiz Gustavo [UNESP]
dc.contributor.authorPortugal, José Roberto [UNESP]
dc.contributor.authorScudeletti, Daniele [UNESP]
dc.contributor.authorde Oliveira, Elisa Fidêncio [UNESP]
dc.contributor.authorCrusciol, Carlos Alexandre Costa [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2023-03-01T21:18:50Z
dc.date.available2023-03-01T21:18:50Z
dc.date.issued2022-04-01
dc.description.abstractSugarcane (Saccharum spp.) is one of the most important crops in the world. Throughout the sugarcane’s growth stages, periods of drought are common, causing detrimental effects on plant growth. Therefore, the search for strategies for minimizing the impact of drought on sugarcane development is of great interest. Plant growth-promoting bacteria hold the potential for improving tolerance to drought in agricultural systems. Thus, the present study aimed to evaluate whether inoculation with Bacillus subtilis can reduce the negative effects of drought on the nutritional, physiological, and morphological characteristics of sugarcane plants. For this, sugarcane was cultivated in a greenhouse, under controlled conditions of water and temperature, with the aid of four treatments: without and with inoculation of B. subtilis, in normal conditions of water availability, and in conditions of water restriction (2 × 2 factorial), with four replications. In treatments with inoculation, the pre-emerged seedlings were immersed in a B. subtilis solution and transplanted into experimental pots. Our results showed that inoculation with B. subtilis improved plant nutrition and chlorophyll concentrations. As a result, the gas exchange parameters (especially net photosynthetic rate and water use efficiency) were also improved, even under drought conditions. In addition, stress parameters (antioxidant metabolism activity) were reduced in inoculated plants. The sum of these beneficial effects resulted in increased root growth, tillering, stalk weight, and higher sucrose concentration in the stalks.en
dc.description.affiliationDepartment of Crop Science College of Agricultural Sciences São Paulo State University (UNESP), Sao Paulo
dc.description.affiliationUnespDepartment of Crop Science College of Agricultural Sciences São Paulo State University (UNESP), Sao Paulo
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdCAPES: 001
dc.identifierhttp://dx.doi.org/10.3390/microorganisms10040809
dc.identifier.citationMicroorganisms, v. 10, n. 4, 2022.
dc.identifier.doi10.3390/microorganisms10040809
dc.identifier.issn2076-2607
dc.identifier.scopus2-s2.0-85128166370
dc.identifier.urihttp://hdl.handle.net/11449/241731
dc.language.isoeng
dc.relation.ispartofMicroorganisms
dc.sourceScopus
dc.subjectantioxidant enzymes
dc.subjectnet photosynthetic rate
dc.subjectplant growth-promoting bacteria
dc.subjectwater restriction
dc.titleBacillus subtilis Inoculation Improves Nutrient Uptake and Physiological Activity in Sugarcane under Drought Stressen
dc.typeArtigo
unesp.departmentEngenharia Rural - FCApt
unesp.departmentProdução e Melhoramento Vegetal - FCApt
unesp.departmentSolos e Recursos Ambientais - FCApt

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Botucatu - FCA - Faculdade de Ciências Agronômicas