Seed Inoculation with Halotolerant Strains Enhance Brassicaceae Seedling Establishment Under Saline Conditions
Soil salinity inhibits germination and seedling establishment, causing patchy crop stands, uneven growth, and poor yields. This study aims to evaluate the early-stage salinity tolerance of Brassicaceae seeds inoculated with plant growth-promoting bacterial (PGPB) strains (E1 and T7) isolated from sa...
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MDPI AG
2024-11-01
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| author | Carlos González-Cobo Glòria Escolà Roser Tolrà Mercè Llugany Charlotte Poschenrieder Eliana Bianucci Silvia Busoms |
| author_facet | Carlos González-Cobo Glòria Escolà Roser Tolrà Mercè Llugany Charlotte Poschenrieder Eliana Bianucci Silvia Busoms |
| author_sort | Carlos González-Cobo |
| collection | DOAJ |
| description | Soil salinity inhibits germination and seedling establishment, causing patchy crop stands, uneven growth, and poor yields. This study aims to evaluate the early-stage salinity tolerance of Brassicaceae seeds inoculated with plant growth-promoting bacterial (PGPB) strains (E1 and T7) isolated from saline soils. Non-inoculated and inoculated seeds of <i>Lobularia maritima</i>, <i>Sinapis alba</i>, and <i>Brassica napus</i> were cultivated under control and salinity conditions, first in agar plates to assess a germination inhibitory concentration of salt for each species and later in soil irrigated with water containing 0 or 75 mM NaCl. Our results indicate that T7 was the only strain able to increase the germination of <i>L. maritima</i> under saline conditions. However, an increase in shoot biomass, root length, and number of branches was observed in <i>L. maritima</i> and <i>S. alba</i> plants inoculated with T7 and in <i>B. napus</i> with E1. Concomitantly, those seedlings exhibited less oxidative damage and greater capacity to balance plant reactive oxygen species production. This study suggests that inoculation of seeds with halotolerant PGPB strains is a suitable strategy for improving the negative effects of salinity in the early stages. Nonetheless, the observed specific plant–host interaction highlights the need for establishing tailored PGPB–crop associations for specific unfavourable environmental conditions. |
| format | Article |
| id | doaj-art-698029ebecb64e51b2e9d257b0c00a59 |
| institution | DOAJ |
| issn | 2077-0472 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
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| series | Agriculture |
| spelling | doaj-art-698029ebecb64e51b2e9d257b0c00a592025-08-20T02:53:41ZengMDPI AGAgriculture2077-04722024-11-011412218410.3390/agriculture14122184Seed Inoculation with Halotolerant Strains Enhance Brassicaceae Seedling Establishment Under Saline ConditionsCarlos González-Cobo0Glòria Escolà1Roser Tolrà2Mercè Llugany3Charlotte Poschenrieder4Eliana Bianucci5Silvia Busoms6Department of Plant Physiology, Universitat Autònoma de Barcelona, 08193 Barcelona, SpainDepartment of Plant Physiology, Universitat Autònoma de Barcelona, 08193 Barcelona, SpainDepartment of Plant Physiology, Universitat Autònoma de Barcelona, 08193 Barcelona, SpainDepartment of Plant Physiology, Universitat Autònoma de Barcelona, 08193 Barcelona, SpainDepartment of Plant Physiology, Universitat Autònoma de Barcelona, 08193 Barcelona, SpainDepartment of Plant Physiology, Universitat Autònoma de Barcelona, 08193 Barcelona, SpainDepartment of Plant Physiology, Universitat Autònoma de Barcelona, 08193 Barcelona, SpainSoil salinity inhibits germination and seedling establishment, causing patchy crop stands, uneven growth, and poor yields. This study aims to evaluate the early-stage salinity tolerance of Brassicaceae seeds inoculated with plant growth-promoting bacterial (PGPB) strains (E1 and T7) isolated from saline soils. Non-inoculated and inoculated seeds of <i>Lobularia maritima</i>, <i>Sinapis alba</i>, and <i>Brassica napus</i> were cultivated under control and salinity conditions, first in agar plates to assess a germination inhibitory concentration of salt for each species and later in soil irrigated with water containing 0 or 75 mM NaCl. Our results indicate that T7 was the only strain able to increase the germination of <i>L. maritima</i> under saline conditions. However, an increase in shoot biomass, root length, and number of branches was observed in <i>L. maritima</i> and <i>S. alba</i> plants inoculated with T7 and in <i>B. napus</i> with E1. Concomitantly, those seedlings exhibited less oxidative damage and greater capacity to balance plant reactive oxygen species production. This study suggests that inoculation of seeds with halotolerant PGPB strains is a suitable strategy for improving the negative effects of salinity in the early stages. Nonetheless, the observed specific plant–host interaction highlights the need for establishing tailored PGPB–crop associations for specific unfavourable environmental conditions.https://www.mdpi.com/2077-0472/14/12/2184salinityPGPBBrassicaceaeseed inoculationseedling establishment |
| spellingShingle | Carlos González-Cobo Glòria Escolà Roser Tolrà Mercè Llugany Charlotte Poschenrieder Eliana Bianucci Silvia Busoms Seed Inoculation with Halotolerant Strains Enhance Brassicaceae Seedling Establishment Under Saline Conditions Agriculture salinity PGPB Brassicaceae seed inoculation seedling establishment |
| title | Seed Inoculation with Halotolerant Strains Enhance Brassicaceae Seedling Establishment Under Saline Conditions |
| title_full | Seed Inoculation with Halotolerant Strains Enhance Brassicaceae Seedling Establishment Under Saline Conditions |
| title_fullStr | Seed Inoculation with Halotolerant Strains Enhance Brassicaceae Seedling Establishment Under Saline Conditions |
| title_full_unstemmed | Seed Inoculation with Halotolerant Strains Enhance Brassicaceae Seedling Establishment Under Saline Conditions |
| title_short | Seed Inoculation with Halotolerant Strains Enhance Brassicaceae Seedling Establishment Under Saline Conditions |
| title_sort | seed inoculation with halotolerant strains enhance brassicaceae seedling establishment under saline conditions |
| topic | salinity PGPB Brassicaceae seed inoculation seedling establishment |
| url | https://www.mdpi.com/2077-0472/14/12/2184 |
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