Release of potassium from rock powder by the yeast Torulaspora globosa
| Autor: | Maria Leonor Ribeiro Casimiro Lopes-Assad, Márcia Maria Rosa-Magri, Sandra Regina Ceccato-Antonini, Sâmia Maria Tauk-Tornisielo, Simoni Helena Avansini |
|---|---|
| Přispěvatelé: | Universidade Federal de São Carlos (UFSCar), Universidade Estadual Paulista (Unesp) |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Rhizosphere
Multidisciplinary Potassium Microorganism lcsh:Biotechnology chemistry.chemical_element Context (language use) Phosphate biosolubilization Yeast insoluble rocks chemistry.chemical_compound alkaline ultramafic chemistry Ultramafic rock lcsh:TP248.13-248.65 Botany Food science Plant nutrition |
| Zdroj: | Brazilian Archives of Biology and Technology v.55 n.4 2012 Brazilian Archives of Biology and Technology Instituto de Tecnologia do Paraná (Tecpar) instacron:TECPAR Brazilian Archives of Biology and Technology, Volume: 55, Issue: 4, Pages: 577-582, Published: AUG 2012 SciELO Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Brazilian Archives of Biology and Technology, Vol 55, Iss 4, Pp 577-582 (2012) |
| ISSN: | 1516-8913 |
| Popis: | Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:41:03Z No. of bitstreams: 1 S1516-89132012000400013.pdf: 72988 bytes, checksum: 97a4a751b8a500ef62b3d7185c0eccf1 (MD5) Made available in DSpace on 2013-08-22T18:41:03Z (GMT). No. of bitstreams: 1 S1516-89132012000400013.pdf: 72988 bytes, checksum: 97a4a751b8a500ef62b3d7185c0eccf1 (MD5) Previous issue date: 2012-08-01 Made available in DSpace on 2013-09-30T19:27:21Z (GMT). No. of bitstreams: 2 S1516-89132012000400013.pdf: 72988 bytes, checksum: 97a4a751b8a500ef62b3d7185c0eccf1 (MD5) S1516-89132012000400013.pdf.txt: 21196 bytes, checksum: 305b3f1870c7fc161fbb0e571da5d6fb (MD5) Previous issue date: 2012-08-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:07:35Z No. of bitstreams: 2 S1516-89132012000400013.pdf: 72988 bytes, checksum: 97a4a751b8a500ef62b3d7185c0eccf1 (MD5) S1516-89132012000400013.pdf.txt: 21196 bytes, checksum: 305b3f1870c7fc161fbb0e571da5d6fb (MD5) Made available in DSpace on 2014-05-20T15:07:35Z (GMT). No. of bitstreams: 2 S1516-89132012000400013.pdf: 72988 bytes, checksum: 97a4a751b8a500ef62b3d7185c0eccf1 (MD5) S1516-89132012000400013.pdf.txt: 21196 bytes, checksum: 305b3f1870c7fc161fbb0e571da5d6fb (MD5) Previous issue date: 2012-08-01 The alteration of minerals in rocks and the availability of elements for plant nutrition require long periods of time, and microorganisms are thought to induce the release of potassium and phosphate from rocks. In this context, this work evaluates the role of the yeast Torulaspora globosa, isolated from the sugar cane rhizosphere, in the solubilization of potassium from alkaline ultramafic rock powder. The experiments were performed in liquid medium, with or without agitation, at 30°C with the following treatments: culture medium + alkaline ultramafic; culture medium + yeast suspension; and culture medium + yeast suspension + alkaline ultramafic. The results showed that as much as 38% of the total potassium in the rock was released in the medium with the yeast during a 15-day period of incubation. Acid production may be the mechanism by which the yeast solubilizes potassium because the total acidity increased during the sampling period. Agitation (which increased oxygen availability) resulted in approximately 20% more biosolubilization of the alkaline ultramafic rock than with the static culture. These data indicate the potential for this yeast in biosolubilization processes and biofertilizer production. Universidade Federal de São Carlos (UFSCar) Universidade Estadual Paulista Universidade Estadual Paulista |
| Databáze: | OpenAIRE |
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