MECHANISMS AND PRACTICAL CONSIDERATIONS INVOLVED IN PLANT GROWTH PROMOTION BY RHIZOBACTERIA

Rhizobacteria are capable of stimulating plant growth through a variety of mechanisms that include improvement of plant nutrition, production and regulation of phytohormones, and suppression of disease causing organisms. While considerable research has demonstrated their potential utility, the succe...

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Autores principales:	Martínez-Viveros,O, Jorquera,M.A, Crowley,D.E, Gajardo,G, Mora,M.L
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2010
Materias:	Agricultural inoculant phytohormone phytopathogen biocontrol plant nutrition rhizosphere
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162010000100006
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spelling	oai:scielo:S0718-951620100001000062010-12-22MECHANISMS AND PRACTICAL CONSIDERATIONS INVOLVED IN PLANT GROWTH PROMOTION BY RHIZOBACTERIAMartínez-Viveros,OJorquera,M.ACrowley,D.EGajardo,GMora,M.L Agricultural inoculant phytohormone phytopathogen biocontrol plant nutrition rhizosphere Rhizobacteria are capable of stimulating plant growth through a variety of mechanisms that include improvement of plant nutrition, production and regulation of phytohormones, and suppression of disease causing organisms. While considerable research has demonstrated their potential utility, the successful application of plant growth promoting rhizobacteria (PGPR) in the field has been limited by a lack of knowledge of ecological factors that determine their survival and activity in the plant rhizosphere. To be effective, PGPR must maintain a critical population density of active cells. Inoculation with PGPR strains can temporarily enhance the population size, but inoculants often have poor survival and compete with indigenous bacteria for available growth substrates. PGPR often have more than one mechanism for enhancing plant growth and experimental evidence suggests that the plant growth stimulation is the net result of multiple mechanisms of action that may be activated simultaneously. The aim of this review is to describe PGPR modes of action and discuss practical considerations for PGPR use 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.10 n.3 20102010-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162010000100006en10.4067/S0718-95162010000100006
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Agricultural inoculant phytohormone phytopathogen biocontrol plant nutrition rhizosphere
spellingShingle	Agricultural inoculant phytohormone phytopathogen biocontrol plant nutrition rhizosphere Martínez-Viveros,O Jorquera,M.A Crowley,D.E Gajardo,G Mora,M.L MECHANISMS AND PRACTICAL CONSIDERATIONS INVOLVED IN PLANT GROWTH PROMOTION BY RHIZOBACTERIA
description	Rhizobacteria are capable of stimulating plant growth through a variety of mechanisms that include improvement of plant nutrition, production and regulation of phytohormones, and suppression of disease causing organisms. While considerable research has demonstrated their potential utility, the successful application of plant growth promoting rhizobacteria (PGPR) in the field has been limited by a lack of knowledge of ecological factors that determine their survival and activity in the plant rhizosphere. To be effective, PGPR must maintain a critical population density of active cells. Inoculation with PGPR strains can temporarily enhance the population size, but inoculants often have poor survival and compete with indigenous bacteria for available growth substrates. PGPR often have more than one mechanism for enhancing plant growth and experimental evidence suggests that the plant growth stimulation is the net result of multiple mechanisms of action that may be activated simultaneously. The aim of this review is to describe PGPR modes of action and discuss practical considerations for PGPR use in agriculture.
author	Martínez-Viveros,O Jorquera,M.A Crowley,D.E Gajardo,G Mora,M.L
author_facet	Martínez-Viveros,O Jorquera,M.A Crowley,D.E Gajardo,G Mora,M.L
author_sort	Martínez-Viveros,O
title	MECHANISMS AND PRACTICAL CONSIDERATIONS INVOLVED IN PLANT GROWTH PROMOTION BY RHIZOBACTERIA
title_short	MECHANISMS AND PRACTICAL CONSIDERATIONS INVOLVED IN PLANT GROWTH PROMOTION BY RHIZOBACTERIA
title_full	MECHANISMS AND PRACTICAL CONSIDERATIONS INVOLVED IN PLANT GROWTH PROMOTION BY RHIZOBACTERIA
title_fullStr	MECHANISMS AND PRACTICAL CONSIDERATIONS INVOLVED IN PLANT GROWTH PROMOTION BY RHIZOBACTERIA
title_full_unstemmed	MECHANISMS AND PRACTICAL CONSIDERATIONS INVOLVED IN PLANT GROWTH PROMOTION BY RHIZOBACTERIA
title_sort	mechanisms and practical considerations involved in plant growth promotion by rhizobacteria
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2010
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162010000100006
work_keys_str_mv	AT martinezviveroso mechanismsandpracticalconsiderationsinvolvedinplantgrowthpromotionbyrhizobacteria AT jorquerama mechanismsandpracticalconsiderationsinvolvedinplantgrowthpromotionbyrhizobacteria AT crowleyde mechanismsandpracticalconsiderationsinvolvedinplantgrowthpromotionbyrhizobacteria AT gajardog mechanismsandpracticalconsiderationsinvolvedinplantgrowthpromotionbyrhizobacteria AT moraml mechanismsandpracticalconsiderationsinvolvedinplantgrowthpromotionbyrhizobacteria
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MECHANISMS AND PRACTICAL CONSIDERATIONS INVOLVED IN PLANT GROWTH PROMOTION BY RHIZOBACTERIA

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