Plant growth promoting rhizobacteria for improved water stress tolerance in wheat genotypes.

Abstract: A greenhouse experiment was carried out to assess the effect of the inoculation with rhizobacterial strains on the tolerance to water stress in wheat genotypes (Triticum aestivum L.) under two different water regimes. A drought resistant (Fontagro 8) and a susceptible (Fontagro 98) genotyp...

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Autores principales:	Mutumba,Filipe Adriano, Zagal,Erick, Gerding,Macarena, Castillo-Rosales,Dalma, Paulino,Leandro, Schoebitz,Mauricio
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2018
Materias:	Inoculation PGPR water stress wheat
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000401080
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spelling	oai:scielo:S0718-951620180004010802019-02-05Plant growth promoting rhizobacteria for improved water stress tolerance in wheat genotypes.Mutumba,Filipe AdrianoZagal,ErickGerding,MacarenaCastillo-Rosales,DalmaPaulino,LeandroSchoebitz,Mauricio Inoculation PGPR water stress wheat Abstract: A greenhouse experiment was carried out to assess the effect of the inoculation with rhizobacterial strains on the tolerance to water stress in wheat genotypes (Triticum aestivum L.) under two different water regimes. A drought resistant (Fontagro 8) and a susceptible (Fontagro 98) genotype were studied. Soil water content was kept at 100% and 45% field capacity. The treatments were inoculations with AG-70 (Bacillus sp.), AG-54 (Pseudomonas sp.), and a mixture of both (AG-70 + AG-54); a control treatment consisting of an autoclaved nutritive solution. When applied to Fontagro 8 genotype, the AG-70 + AG-54 treatment resulted in a higher increase in shoot (88%) and root dry weight (211%) compared to the control under drought conditions. The same treatment applied on the susceptible genotype (Fontagro 98) resulted in increases of 73% and 129% in shoot and root dry weight, respectively. In addition, the inoculated plants showed significant increases in root length, stomatal conductance and chlorophyll index. The AG-54 and AG-70 treatments increased NPK contents in the drought-resistant genotype, while the AG-54 and AG-70 + AG-54 treatments increased the P content in the susceptible genotype. The treatments that showed the most positive effects on the biological quality parameters of the soil (microbial activity, microbial respiration and urease enzyme activity) were AG-54 and AG-70 + AG-54. Therefore, the use of AG-70 and AG-54, applied separately or combined, increased tolerance to water stress in both wheat genotypes and constitute a biotechnological tool for the production of crops in water-deficit ecosystems.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.18 n.4 20182018-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000401080en10.4067/S0718-95162018005003003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Inoculation PGPR water stress wheat
spellingShingle	Inoculation PGPR water stress wheat Mutumba,Filipe Adriano Zagal,Erick Gerding,Macarena Castillo-Rosales,Dalma Paulino,Leandro Schoebitz,Mauricio Plant growth promoting rhizobacteria for improved water stress tolerance in wheat genotypes.
description	Abstract: A greenhouse experiment was carried out to assess the effect of the inoculation with rhizobacterial strains on the tolerance to water stress in wheat genotypes (Triticum aestivum L.) under two different water regimes. A drought resistant (Fontagro 8) and a susceptible (Fontagro 98) genotype were studied. Soil water content was kept at 100% and 45% field capacity. The treatments were inoculations with AG-70 (Bacillus sp.), AG-54 (Pseudomonas sp.), and a mixture of both (AG-70 + AG-54); a control treatment consisting of an autoclaved nutritive solution. When applied to Fontagro 8 genotype, the AG-70 + AG-54 treatment resulted in a higher increase in shoot (88%) and root dry weight (211%) compared to the control under drought conditions. The same treatment applied on the susceptible genotype (Fontagro 98) resulted in increases of 73% and 129% in shoot and root dry weight, respectively. In addition, the inoculated plants showed significant increases in root length, stomatal conductance and chlorophyll index. The AG-54 and AG-70 treatments increased NPK contents in the drought-resistant genotype, while the AG-54 and AG-70 + AG-54 treatments increased the P content in the susceptible genotype. The treatments that showed the most positive effects on the biological quality parameters of the soil (microbial activity, microbial respiration and urease enzyme activity) were AG-54 and AG-70 + AG-54. Therefore, the use of AG-70 and AG-54, applied separately or combined, increased tolerance to water stress in both wheat genotypes and constitute a biotechnological tool for the production of crops in water-deficit ecosystems.
author	Mutumba,Filipe Adriano Zagal,Erick Gerding,Macarena Castillo-Rosales,Dalma Paulino,Leandro Schoebitz,Mauricio
author_facet	Mutumba,Filipe Adriano Zagal,Erick Gerding,Macarena Castillo-Rosales,Dalma Paulino,Leandro Schoebitz,Mauricio
author_sort	Mutumba,Filipe Adriano
title	Plant growth promoting rhizobacteria for improved water stress tolerance in wheat genotypes.
title_short	Plant growth promoting rhizobacteria for improved water stress tolerance in wheat genotypes.
title_full	Plant growth promoting rhizobacteria for improved water stress tolerance in wheat genotypes.
title_fullStr	Plant growth promoting rhizobacteria for improved water stress tolerance in wheat genotypes.
title_full_unstemmed	Plant growth promoting rhizobacteria for improved water stress tolerance in wheat genotypes.
title_sort	plant growth promoting rhizobacteria for improved water stress tolerance in wheat genotypes.
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000401080
work_keys_str_mv	AT mutumbafilipeadriano plantgrowthpromotingrhizobacteriaforimprovedwaterstresstoleranceinwheatgenotypes AT zagalerick plantgrowthpromotingrhizobacteriaforimprovedwaterstresstoleranceinwheatgenotypes AT gerdingmacarena plantgrowthpromotingrhizobacteriaforimprovedwaterstresstoleranceinwheatgenotypes AT castillorosalesdalma plantgrowthpromotingrhizobacteriaforimprovedwaterstresstoleranceinwheatgenotypes AT paulinoleandro plantgrowthpromotingrhizobacteriaforimprovedwaterstresstoleranceinwheatgenotypes AT schoebitzmauricio plantgrowthpromotingrhizobacteriaforimprovedwaterstresstoleranceinwheatgenotypes
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Plant growth promoting rhizobacteria for improved water stress tolerance in wheat genotypes.

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