Serratia plymuthica MBSA-MJ1 Increases Shoot Growth and Tissue Nutrient Concentration in Containerized Ornamentals Grown Under Low-Nutrient Conditions

High fertilizer rates are often applied to horticulture crop production systems to produce high quality crops with minimal time in production. Much of the nutrients applied in fertilizers are not taken up by the plant and are leached out of the containers during regular irrigation. The application o...

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Autores principales:	Nathan P. Nordstedt, Michelle L. Jones
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	biofertilizer biostimulant floriculture genome analysis horticulture nutrient stress Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/ccebe6d0ba4743eb9cd723d1bbb2eed3
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spelling	oai:doaj.org-article:ccebe6d0ba4743eb9cd723d1bbb2eed32021-12-02T10:50:38ZSerratia plymuthica MBSA-MJ1 Increases Shoot Growth and Tissue Nutrient Concentration in Containerized Ornamentals Grown Under Low-Nutrient Conditions1664-302X10.3389/fmicb.2021.788198https://doaj.org/article/ccebe6d0ba4743eb9cd723d1bbb2eed32021-12-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmicb.2021.788198/fullhttps://doaj.org/toc/1664-302XHigh fertilizer rates are often applied to horticulture crop production systems to produce high quality crops with minimal time in production. Much of the nutrients applied in fertilizers are not taken up by the plant and are leached out of the containers during regular irrigation. The application of plant growth promoting rhizobacteria (PGPR) can increase the availability and uptake of essential nutrients by plants, thereby reducing nutrient leaching and environmental contamination. Identification of PGPR can contribute to the formulation of biostimulant products for use in commercial greenhouse production. Here, we have identified Serratia plymuthica MBSA-MJ1 as a PGPR that can promote the growth of containerized horticulture crops grown with low fertilizer inputs. MBSA-MJ1 was applied weekly as a media drench to Petunia×hybrida (petunia), Impatiens walleriana (impatiens), and Viola×wittrockiana (pansy). Plant growth, quality, and tissue nutrient concentration were evaluated 8weeks after transplant. Application of MBSA-MJ1 increased the shoot biomass of all three species and increased the flower number of impatiens. Bacteria application also increased the concentration of certain essential nutrients in the shoots of different plant species. In vitro and genomic characterization identified multiple putative mechanisms that are likely contributing to the strain’s ability to increase the availability and uptake of these nutrients by plants. This work provides insight into the interconnectedness of beneficial PGPR mechanisms and how these bacteria can be utilized as potential biostimulants for sustainable crop production with reduced chemical fertilizer inputs.Nathan P. NordstedtMichelle L. JonesFrontiers Media S.A.articlebiofertilizerbiostimulantfloriculturegenome analysishorticulturenutrient stressMicrobiologyQR1-502ENFrontiers in Microbiology, Vol 12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	biofertilizer biostimulant floriculture genome analysis horticulture nutrient stress Microbiology QR1-502
spellingShingle	biofertilizer biostimulant floriculture genome analysis horticulture nutrient stress Microbiology QR1-502 Nathan P. Nordstedt Michelle L. Jones Serratia plymuthica MBSA-MJ1 Increases Shoot Growth and Tissue Nutrient Concentration in Containerized Ornamentals Grown Under Low-Nutrient Conditions
description	High fertilizer rates are often applied to horticulture crop production systems to produce high quality crops with minimal time in production. Much of the nutrients applied in fertilizers are not taken up by the plant and are leached out of the containers during regular irrigation. The application of plant growth promoting rhizobacteria (PGPR) can increase the availability and uptake of essential nutrients by plants, thereby reducing nutrient leaching and environmental contamination. Identification of PGPR can contribute to the formulation of biostimulant products for use in commercial greenhouse production. Here, we have identified Serratia plymuthica MBSA-MJ1 as a PGPR that can promote the growth of containerized horticulture crops grown with low fertilizer inputs. MBSA-MJ1 was applied weekly as a media drench to Petunia×hybrida (petunia), Impatiens walleriana (impatiens), and Viola×wittrockiana (pansy). Plant growth, quality, and tissue nutrient concentration were evaluated 8weeks after transplant. Application of MBSA-MJ1 increased the shoot biomass of all three species and increased the flower number of impatiens. Bacteria application also increased the concentration of certain essential nutrients in the shoots of different plant species. In vitro and genomic characterization identified multiple putative mechanisms that are likely contributing to the strain’s ability to increase the availability and uptake of these nutrients by plants. This work provides insight into the interconnectedness of beneficial PGPR mechanisms and how these bacteria can be utilized as potential biostimulants for sustainable crop production with reduced chemical fertilizer inputs.
format	article
author	Nathan P. Nordstedt Michelle L. Jones
author_facet	Nathan P. Nordstedt Michelle L. Jones
author_sort	Nathan P. Nordstedt
title	Serratia plymuthica MBSA-MJ1 Increases Shoot Growth and Tissue Nutrient Concentration in Containerized Ornamentals Grown Under Low-Nutrient Conditions
title_short	Serratia plymuthica MBSA-MJ1 Increases Shoot Growth and Tissue Nutrient Concentration in Containerized Ornamentals Grown Under Low-Nutrient Conditions
title_full	Serratia plymuthica MBSA-MJ1 Increases Shoot Growth and Tissue Nutrient Concentration in Containerized Ornamentals Grown Under Low-Nutrient Conditions
title_fullStr	Serratia plymuthica MBSA-MJ1 Increases Shoot Growth and Tissue Nutrient Concentration in Containerized Ornamentals Grown Under Low-Nutrient Conditions
title_full_unstemmed	Serratia plymuthica MBSA-MJ1 Increases Shoot Growth and Tissue Nutrient Concentration in Containerized Ornamentals Grown Under Low-Nutrient Conditions
title_sort	serratia plymuthica mbsa-mj1 increases shoot growth and tissue nutrient concentration in containerized ornamentals grown under low-nutrient conditions
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/ccebe6d0ba4743eb9cd723d1bbb2eed3
work_keys_str_mv	AT nathanpnordstedt serratiaplymuthicambsamj1increasesshootgrowthandtissuenutrientconcentrationincontainerizedornamentalsgrownunderlownutrientconditions AT michelleljones serratiaplymuthicambsamj1increasesshootgrowthandtissuenutrientconcentrationincontainerizedornamentalsgrownunderlownutrientconditions
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Serratia plymuthica MBSA-MJ1 Increases Shoot Growth and Tissue Nutrient Concentration in Containerized Ornamentals Grown Under Low-Nutrient Conditions

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