Potassium solubilizing bacteria (KSB):: Mechanisms, promotion of plant growth, and future prospects A review

Potassium (K) is considered as an essential nutrient and a major constituent within all living cells. Naturally, soils contain K in larger amounts than any other nutrients; however most of the K is unavailable for plant uptake. Application of chemical fertilizers has a considerably negative impact o...

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Autores principales:	Etesami,H., Emami,S., Alikhani,H. A.
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2017
Materias:	Bio-fertilizer potassium bearing minerals potassium solubilization plant and bacteria interactions PGPRs
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162017000400005
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spelling	oai:scielo:S0718-951620170004000052017-12-20Potassium solubilizing bacteria (KSB):: Mechanisms, promotion of plant growth, and future prospects A reviewEtesami,H.Emami,S.Alikhani,H. A. Bio-fertilizer potassium bearing minerals potassium solubilization plant and bacteria interactions PGPRs Potassium (K) is considered as an essential nutrient and a major constituent within all living cells. Naturally, soils contain K in larger amounts than any other nutrients; however most of the K is unavailable for plant uptake. Application of chemical fertilizers has a considerably negative impact on environmental sustainability. It is known that potassium solubilizing bacteria (KSB) can solubilize K-bearing minerals and convert the insoluble K to soluble forms of K available to plant uptake. Many bacteria such as Acidothiobacillus ferrooxidans, Paenibacillus spp., Bacillus mucilaginosus, B. edaphicus, and B. circulans have capacity to solubilize K minerals (e.g., biotite, feldspar, illite, muscovite, orthoclase, and mica). KSB are usually present in all soils, although their number, diversity and ability for K solubilization vary depending upon the soil and climatic conditions. KSB can dissolve silicate minerals and release K through the production of organic and inorganic acids, acidolysis, polysaccharides, complexolysis, chelation, and exchange reactions. Hence, the production and management of biological fertilizers containing KSB can be an effective alternative to chemical fertilizers. This article presents an overview of current trends and challenges on KSB, mechanisms and their role in plant growth promotion, and eventually gives some perspectives for research on K in agriculture.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.17 n.4 20172017-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162017000400005en10.4067/S0718-95162017000400005
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Bio-fertilizer potassium bearing minerals potassium solubilization plant and bacteria interactions PGPRs
spellingShingle	Bio-fertilizer potassium bearing minerals potassium solubilization plant and bacteria interactions PGPRs Etesami,H. Emami,S. Alikhani,H. A. Potassium solubilizing bacteria (KSB):: Mechanisms, promotion of plant growth, and future prospects A review
description	Potassium (K) is considered as an essential nutrient and a major constituent within all living cells. Naturally, soils contain K in larger amounts than any other nutrients; however most of the K is unavailable for plant uptake. Application of chemical fertilizers has a considerably negative impact on environmental sustainability. It is known that potassium solubilizing bacteria (KSB) can solubilize K-bearing minerals and convert the insoluble K to soluble forms of K available to plant uptake. Many bacteria such as Acidothiobacillus ferrooxidans, Paenibacillus spp., Bacillus mucilaginosus, B. edaphicus, and B. circulans have capacity to solubilize K minerals (e.g., biotite, feldspar, illite, muscovite, orthoclase, and mica). KSB are usually present in all soils, although their number, diversity and ability for K solubilization vary depending upon the soil and climatic conditions. KSB can dissolve silicate minerals and release K through the production of organic and inorganic acids, acidolysis, polysaccharides, complexolysis, chelation, and exchange reactions. Hence, the production and management of biological fertilizers containing KSB can be an effective alternative to chemical fertilizers. This article presents an overview of current trends and challenges on KSB, mechanisms and their role in plant growth promotion, and eventually gives some perspectives for research on K in agriculture.
author	Etesami,H. Emami,S. Alikhani,H. A.
author_facet	Etesami,H. Emami,S. Alikhani,H. A.
author_sort	Etesami,H.
title	Potassium solubilizing bacteria (KSB):: Mechanisms, promotion of plant growth, and future prospects A review
title_short	Potassium solubilizing bacteria (KSB):: Mechanisms, promotion of plant growth, and future prospects A review
title_full	Potassium solubilizing bacteria (KSB):: Mechanisms, promotion of plant growth, and future prospects A review
title_fullStr	Potassium solubilizing bacteria (KSB):: Mechanisms, promotion of plant growth, and future prospects A review
title_full_unstemmed	Potassium solubilizing bacteria (KSB):: Mechanisms, promotion of plant growth, and future prospects A review
title_sort	potassium solubilizing bacteria (ksb):: mechanisms, promotion of plant growth, and future prospects a review
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162017000400005
work_keys_str_mv	AT etesamih potassiumsolubilizingbacteriaksbmechanismspromotionofplantgrowthandfutureprospectsareview AT emamis potassiumsolubilizingbacteriaksbmechanismspromotionofplantgrowthandfutureprospectsareview AT alikhaniha potassiumsolubilizingbacteriaksbmechanismspromotionofplantgrowthandfutureprospectsareview
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Potassium solubilizing bacteria (KSB):: Mechanisms, promotion of plant growth, and future prospects ­ A review

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