دورية أكاديمية
Inoculation with Bacillus megaterium CNPMS B119 and Bacillus subtilis CNPMS B2084 improve P-acquisition and maize yield in Brazil.
| العنوان: | Inoculation with Bacillus megaterium CNPMS B119 and Bacillus subtilis CNPMS B2084 improve P-acquisition and maize yield in Brazil. |
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| المؤلفون: | de Oliveira-Paiva CA; Microbiology Laboratory, Embrapa Milho e Sorgo, Sete Lagoas, Brazil., Bini D; Microbiology Laboratory, Embrapa Milho e Sorgo, Sete Lagoas, Brazil., de Sousa SM; Applied Biology Center, Embrapa Milho e Sorgo, Sete Lagoas, Brazil., Ribeiro VP; Microbiology Laboratory, Embrapa Milho e Sorgo, Sete Lagoas, Brazil., Dos Santos FC; Microbiology Laboratory, Embrapa Milho e Sorgo, Sete Lagoas, Brazil., de Paula Lana UG; Applied Biology Center, Embrapa Milho e Sorgo, Sete Lagoas, Brazil., de Souza FF; Microbiology Laboratory, Embrapa Milho e Sorgo, Sete Lagoas, Brazil., Gomes EA; Applied Biology Center, Embrapa Milho e Sorgo, Sete Lagoas, Brazil., Marriel IE; Microbiology Laboratory, Embrapa Milho e Sorgo, Sete Lagoas, Brazil. |
| المصدر: | Frontiers in microbiology [Front Microbiol] 2024 Jun 26; Vol. 15, pp. 1426166. Date of Electronic Publication: 2024 Jun 26 (Print Publication: 2024). |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Frontiers Research Foundation Country of Publication: Switzerland NLM ID: 101548977 Publication Model: eCollection Cited Medium: Print ISSN: 1664-302X (Print) Linking ISSN: 1664302X NLM ISO Abbreviation: Front Microbiol Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: | Original Publication: Lausanne : Frontiers Research Foundation |
| مستخلص: | Phosphorus (P) is a critical nutrient for plant growth, yet its uptake is often hindered by soil factors like clay minerals and metal oxides such as aluminum (Al), iron (Fe), and calcium (Ca), which bind P and limit its availability. Phosphate-solubilizing bacteria (PSB) have the unique ability to convert insoluble P into a soluble form, thereby fostering plant growth. This study aimed to assess the efficacy of inoculation of Bacillus megaterium B119 (rhizospheric) and B. subtilis B2084 (endophytic) via seed treatment in enhancing maize yield, grain P content, and enzyme activities across two distinct soil types in field conditions. Additionally, we investigated various mechanisms contributing to plant growth promotion, compatibility with commercial inoculants, and the maize root adhesion profile of these strains. During five crop seasons in two experimental areas in Brazil, Sete Lagoas-MG and Santo Antônio de Goiás-GO, single inoculations with either B119 or B2084 were implemented in three seasons, while a co-inoculation with both strains was applied in two seasons. All treatments received P fertilizer according to plot recommendations, except for control. Both the Bacillus strains exhibited plant growth-promoting properties relevant to P dynamics, including phosphate solubilization and mineralization, production of indole-3-acetic acid (IAA)-like molecules, siderophores, exopolysaccharides (EPS), biofilms, and phosphatases, with no antagonism observed with Azospirillum and Bradyrizhobium . Strain B2084 displayed superior maize root adhesion compared to B119. In field trials, single inoculations with either B119 or B2084 resulted in increased maize grain yield, with relative average productivities of 22 and 16% in Sete Lagoas and 6 and 3% in Santo Antônio de Goiás, respectively. Co-inoculation proved more effective, with an average yield increase of 24% in Sete Lagoas and 11% in Santo Antônio de Goiás compared to the non-inoculated control. Across all seasons, accumulated grain P content correlated with yield, and soil P availability in the rhizosphere increased after co-inoculation in Santo Antônio de Goiás. These findings complement previous research efforts and have led to the validation and registration of the first Brazilian inoculant formulated with Bacillus strains for maize, effectively enhancing and P grain content. Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2024 de Oliveira-Paiva, Bini, de Sousa, Ribeiro, dos Santos, de Paula Lana, de Souza, Gomes and Marriel.) |
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| فهرسة مساهمة: | Keywords: Bacillaceae; bacteria; co-inoculation; maize yield; phosphate-solubilizing; plant growth promoting bacteria |
| تواريخ الأحداث: | Date Created: 20240711 Latest Revision: 20240712 |
| رمز التحديث: | 20240712 |
| مُعرف محوري في PubMed: | PMC11233657 |
| DOI: | 10.3389/fmicb.2024.1426166 |
| PMID: | 38989019 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1664-302X |
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| DOI: | 10.3389/fmicb.2024.1426166 |