Plant growth promoting rhizobacteria from Juan Fernández archipelago improve germination rate of endangered plant Solanum fernandezianum Phil.

ABSTRACT Robinson Crusoe Island, Chile, has one of the highest densities of endemic plants in the world, however many of its native and endemic species, such as Solanum fernandezianum Phil., are currently declared endangered. Coating the seeds of native plants with locally sourced plant-growth-promo...

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Autores principales:	Carrasco-Fernández,Jorge, Guerra,Matías, Castro,Jean Franco, Bustamante,Luis, Barra-Bucarei,Lorena, Ceballos,Ricardo, Fernández,Natalí, Edgington,Steve, France,Andrés
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2020
Materias:	Bioinoculant germination rate IAA production plant-growth-promoting rhizobacteria Solanum fernandezianum.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392020000100041
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spelling	oai:scielo:S0718-583920200001000412020-02-25Plant growth promoting rhizobacteria from Juan Fernández archipelago improve germination rate of endangered plant Solanum fernandezianum Phil.Carrasco-Fernández,JorgeGuerra,MatíasCastro,Jean FrancoBustamante,LuisBarra-Bucarei,LorenaCeballos,RicardoFernández,NatalíEdgington,SteveFrance,Andrés Bioinoculant germination rate IAA production plant-growth-promoting rhizobacteria Solanum fernandezianum. ABSTRACT Robinson Crusoe Island, Chile, has one of the highest densities of endemic plants in the world, however many of its native and endemic species, such as Solanum fernandezianum Phil., are currently declared endangered. Coating the seeds of native plants with locally sourced plant-growth-promoting bacteria can be used as a tool for conservation programs of endangered plant species. Isolation and screening of rhizosphere bacteria from Robinson Crusoe Island resulted in the selection of three bacteria: Serratia sp. RGM 2525, Raoultella sp. RGM 2526, and Pseudomonas sp. RGM 2607, due to their capacity of producing indole compounds (30-45 μL mL-1) and indoleacetic acid (IAA) (5-10 μg mL-1). The effect of these strains on the seed germination rate of S. fernandezianum was evaluated under five treatments: individual inoculation of each bacteria, inoculation of a mixture of the three bacteria and a treatment without bacteria (control). Inoculation of bacteria improved the seed germination rate of S. fernandezianum compared to the control treatment, with the bacterial mix as the best treatment with 26.9% germination (p < 0.05), 10.2% higher than control. Bioinoculants formulated with bacteria isolated from rhizosphere soils could improve the seed germination rate of the endangered plant S. fernandezianum.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.80 n.1 20202020-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392020000100041en10.4067/S0718-58392020000100041
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Bioinoculant germination rate IAA production plant-growth-promoting rhizobacteria Solanum fernandezianum.
spellingShingle	Bioinoculant germination rate IAA production plant-growth-promoting rhizobacteria Solanum fernandezianum. Carrasco-Fernández,Jorge Guerra,Matías Castro,Jean Franco Bustamante,Luis Barra-Bucarei,Lorena Ceballos,Ricardo Fernández,Natalí Edgington,Steve France,Andrés Plant growth promoting rhizobacteria from Juan Fernández archipelago improve germination rate of endangered plant Solanum fernandezianum Phil.
description	ABSTRACT Robinson Crusoe Island, Chile, has one of the highest densities of endemic plants in the world, however many of its native and endemic species, such as Solanum fernandezianum Phil., are currently declared endangered. Coating the seeds of native plants with locally sourced plant-growth-promoting bacteria can be used as a tool for conservation programs of endangered plant species. Isolation and screening of rhizosphere bacteria from Robinson Crusoe Island resulted in the selection of three bacteria: Serratia sp. RGM 2525, Raoultella sp. RGM 2526, and Pseudomonas sp. RGM 2607, due to their capacity of producing indole compounds (30-45 μL mL-1) and indoleacetic acid (IAA) (5-10 μg mL-1). The effect of these strains on the seed germination rate of S. fernandezianum was evaluated under five treatments: individual inoculation of each bacteria, inoculation of a mixture of the three bacteria and a treatment without bacteria (control). Inoculation of bacteria improved the seed germination rate of S. fernandezianum compared to the control treatment, with the bacterial mix as the best treatment with 26.9% germination (p < 0.05), 10.2% higher than control. Bioinoculants formulated with bacteria isolated from rhizosphere soils could improve the seed germination rate of the endangered plant S. fernandezianum.
author	Carrasco-Fernández,Jorge Guerra,Matías Castro,Jean Franco Bustamante,Luis Barra-Bucarei,Lorena Ceballos,Ricardo Fernández,Natalí Edgington,Steve France,Andrés
author_facet	Carrasco-Fernández,Jorge Guerra,Matías Castro,Jean Franco Bustamante,Luis Barra-Bucarei,Lorena Ceballos,Ricardo Fernández,Natalí Edgington,Steve France,Andrés
author_sort	Carrasco-Fernández,Jorge
title	Plant growth promoting rhizobacteria from Juan Fernández archipelago improve germination rate of endangered plant Solanum fernandezianum Phil.
title_short	Plant growth promoting rhizobacteria from Juan Fernández archipelago improve germination rate of endangered plant Solanum fernandezianum Phil.
title_full	Plant growth promoting rhizobacteria from Juan Fernández archipelago improve germination rate of endangered plant Solanum fernandezianum Phil.
title_fullStr	Plant growth promoting rhizobacteria from Juan Fernández archipelago improve germination rate of endangered plant Solanum fernandezianum Phil.
title_full_unstemmed	Plant growth promoting rhizobacteria from Juan Fernández archipelago improve germination rate of endangered plant Solanum fernandezianum Phil.
title_sort	plant growth promoting rhizobacteria from juan fernández archipelago improve germination rate of endangered plant solanum fernandezianum phil.
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392020000100041
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Plant growth promoting rhizobacteria from Juan Fernández archipelago improve germination rate of endangered plant Solanum fernandezianum Phil.

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