English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Background  The emerging roles of rhizobacteria in improving plant nutrition and stress protection have great potential for sustainable use in saline soils. We evaluated the function of the salt-tolerant strain  Azotobacter chroococcum  76A as stress protectant in an important horticultural crop, tomato. Specifically we hypothesized that treatment of tomato plants with  A. chroococcum  76A could improve plant performance under salinity stress and sub-optimal nutrient regimen.    Results  Inoculation of Micro Tom tomato plants with  A. chroococcum  76A increased numerous growth parameters and also conferred protective effects under both moderate (50 mM NaCl) and severe (100 mM NaCl) salt stresses. These benefits were mostly observed under reduced nutrient regimen and were less appreciable in optimal nitrogen conditions. Therefore, the efficiency of  A. chroococcum  76A was found to be dependent on the nutrient status of the rhizosphere. The expression profiles of  LEA  genes indicated that  A. chroococcum  76A treated plants were more responsive to stress stimuli when compared to untreated controls. However, transcript levels of key nitrogen assimilation genes revealed that the optimal nitrogen regimen, in combination with the strain  A. chroococcum  76A, may have saturated plant’s ability to assimilate nitrogen.    Conclusions  Roots inoculation with  A. chroococcum  76A tomato promoted tomato plant growth, stress tolerance and nutrient assimilation efficiency under moderate and severe salinity. Inoculation with beneficial bacteria such as  A. chroococcum  76A may be an ideal solution for low-input systems, where environmental constraints and limited chemical fertilization may affect the potential yield.    Electronic supplementary material  The online version of this article (10.1186/s12870-018-1411-5) contains supplementary material, which is available to authorized users.

Root inoculation with Azotobacter chroococcum 76A enhances tomato plants adaptation to salt stress under low N conditions