Isolates of Bacillus sp. from garlic: effect on corn development and plant growth-promoting mechanisms
ABSTRACT Corn and garlic are important crops to Curitibanos region (state of Santa Catarina – Brazil), often planted in alternate cropping seasons. Production costs are high, especially due to N fertilizer, since they are highly demanding in N. In addition to reducing economic costs, the search for...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Ciência do Solo
2020-10-01
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| Series: | Revista Brasileira de Ciência do Solo |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832020000100413&tlng=en |
| _version_ | 1819006016729120768 |
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| author | William Gilberto Balbinot Sabrina Rodrigues Glória ReginaBotelho |
| author_facet | William Gilberto Balbinot Sabrina Rodrigues Glória ReginaBotelho |
| author_sort | William Gilberto Balbinot |
| collection | DOAJ |
| description | ABSTRACT Corn and garlic are important crops to Curitibanos region (state of Santa Catarina – Brazil), often planted in alternate cropping seasons. Production costs are high, especially due to N fertilizer, since they are highly demanding in N. In addition to reducing economic costs, the search for environmentally sustainable technologies has stimulated the study of interactions between plants and growth-promoting microorganisms. Rhizobacteria, e.g., Bacillus sp., have been presenting as growth-promoting microorganisms. Five isolates of garlic rhizosphere from 27 individuals of the Plant Growth Promoting Microorganisms group collection were tested on corn under field conditions, comparing to two levels of nitrogen fertilization: 120 and 60 kg ha-1. The Bacillus collection was also evaluated in vitro for phosphate solubilization, production of IAA (Indole Acetic Acid), extracellular enzymes, and inhibition of Sclerotium cepivorum. For plant height and stalk diameter, the inoculation of the EB16 isolate showed similar results to the fertilization with 120 and 60 kg ha-1 of N in corn. Both EB16 and EB02 isolates increased corn ear diameter and the yield was similar to that observed in the treatment with 60 kg ha-1 of N, indicating their potential as growth-promoters. All strains of the collection produced IAA, and most of them solubilized calcium phosphate and produced lipases and urease. Forty-eight percent of the isolates inhibited S. cepivorum. The EB01, EB15, EB17, and EB27 were positive for three of the four mechanisms analyzed. During these evaluations, it was observed that EB02 and EB16 produced equivalent amounts of IAA, suggesting that more than one growth-promoting mechanism is involved in the efficiency of corn development induction. |
| first_indexed | 2024-12-21T00:01:59Z |
| format | Article |
| id | doaj.art-f7358848e38e40ed8890898fbbe13d81 |
| institution | Directory Open Access Journal |
| issn | 1806-9657 |
| language | English |
| last_indexed | 2024-12-21T00:01:59Z |
| publishDate | 2020-10-01 |
| publisher | Sociedade Brasileira de Ciência do Solo |
| record_format | Article |
| series | Revista Brasileira de Ciência do Solo |
| spelling | doaj.art-f7358848e38e40ed8890898fbbe13d812022-12-21T19:22:36ZengSociedade Brasileira de Ciência do SoloRevista Brasileira de Ciência do Solo1806-96572020-10-014410.36783/18069657rbcs20200043Isolates of Bacillus sp. from garlic: effect on corn development and plant growth-promoting mechanismsWilliam Gilberto Balbinothttps://orcid.org/0000-0003-3214-8272Sabrina Rodrigueshttps://orcid.org/0000-0003-3555-1657Glória ReginaBotelhohttps://orcid.org/0000-0001-8521-2069ABSTRACT Corn and garlic are important crops to Curitibanos region (state of Santa Catarina – Brazil), often planted in alternate cropping seasons. Production costs are high, especially due to N fertilizer, since they are highly demanding in N. In addition to reducing economic costs, the search for environmentally sustainable technologies has stimulated the study of interactions between plants and growth-promoting microorganisms. Rhizobacteria, e.g., Bacillus sp., have been presenting as growth-promoting microorganisms. Five isolates of garlic rhizosphere from 27 individuals of the Plant Growth Promoting Microorganisms group collection were tested on corn under field conditions, comparing to two levels of nitrogen fertilization: 120 and 60 kg ha-1. The Bacillus collection was also evaluated in vitro for phosphate solubilization, production of IAA (Indole Acetic Acid), extracellular enzymes, and inhibition of Sclerotium cepivorum. For plant height and stalk diameter, the inoculation of the EB16 isolate showed similar results to the fertilization with 120 and 60 kg ha-1 of N in corn. Both EB16 and EB02 isolates increased corn ear diameter and the yield was similar to that observed in the treatment with 60 kg ha-1 of N, indicating their potential as growth-promoters. All strains of the collection produced IAA, and most of them solubilized calcium phosphate and produced lipases and urease. Forty-eight percent of the isolates inhibited S. cepivorum. The EB01, EB15, EB17, and EB27 were positive for three of the four mechanisms analyzed. During these evaluations, it was observed that EB02 and EB16 produced equivalent amounts of IAA, suggesting that more than one growth-promoting mechanism is involved in the efficiency of corn development induction.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832020000100413&tlng=enrhizobacteriaZea mays LmerrilAllium sativumgrowth-promoters |
| spellingShingle | William Gilberto Balbinot Sabrina Rodrigues Glória ReginaBotelho Isolates of Bacillus sp. from garlic: effect on corn development and plant growth-promoting mechanisms Revista Brasileira de Ciência do Solo rhizobacteria Zea mays L merril Allium sativum growth-promoters |
| title | Isolates of Bacillus sp. from garlic: effect on corn development and plant growth-promoting mechanisms |
| title_full | Isolates of Bacillus sp. from garlic: effect on corn development and plant growth-promoting mechanisms |
| title_fullStr | Isolates of Bacillus sp. from garlic: effect on corn development and plant growth-promoting mechanisms |
| title_full_unstemmed | Isolates of Bacillus sp. from garlic: effect on corn development and plant growth-promoting mechanisms |
| title_short | Isolates of Bacillus sp. from garlic: effect on corn development and plant growth-promoting mechanisms |
| title_sort | isolates of bacillus sp from garlic effect on corn development and plant growth promoting mechanisms |
| topic | rhizobacteria Zea mays L merril Allium sativum growth-promoters |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832020000100413&tlng=en |
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