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001050629 005__ 20260115203947.0
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001050629 0247_ $$2datacite_doi$$a10.34734/FZJ-2026-00381
001050629 037__ $$aFZJ-2026-00381
001050629 1001_ $$0P:(DE-Juel1)178056$$aSanow, S.$$b0
001050629 245__ $$aSystems-level Plant Responses Reveal Pseudomonas -Mediated Growth Promotion in Brachypodium Under Nitrogen Limitation
001050629 260__ $$c2025
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001050629 520__ $$aPlant molecular adaptation to plant growth promoting bacteria (PGPB) under nutrient stress remains unclear, yet is essential for advancing PGPB use in agriculture. The model grass Brachypodium dystachion was studied together with Pseudomonas koreeensis (Pk) at two nitrogen (N) conditions. Non-invasive shoot phenotyping showed an immediate response to low-N, while beneficial effects of Pk became quantifiable after day 19. Increased N content in inoculated plants, along with Pk’s ability to grow on N-free media, suggests bacterial N contribution at deficient N. In low-N conditions, Pk-inoculated plants showed 33.2% more N than uninoculated controls and biomass comparable to high-N plants. Pk had no effect under sufficient N. Proteomics and lipidomics revealed that lipid profiles were primarily shaped by N availability, while protein abundance responded to both Pk and N status. Inoculated low-N plants displayed protein profiles resembling those of high-N controls, with some distinct exceptions. The plant-microbe interaction is dynamic and developed over 3 weeks, leading to increased biomass and N content. Root proteins strongly induced by Pk under low-N included lipid degradation enzymes, N transporters, and regulatory proteins, suggesting a coordinated remodelling of energy metabolism supporting whole-plant biomass and increased abundance of N uptake proteins.
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001050629 7001_ $$0P:(DE-Juel1)184834$$aMantz, M.$$b1
001050629 7001_ $$0P:(DE-Juel1)129557$$aWissel, H.$$b2$$ufzj
001050629 7001_ $$aBhatnagar, A.$$b3
001050629 7001_ $$aSturm, E.$$b4
001050629 7001_ $$0P:(DE-Juel1)164816$$aKelm, J. M.$$b5
001050629 7001_ $$aWalker, R.$$b6
001050629 7001_ $$0P:(DE-Juel1)129567$$aLücke, A.$$b7
001050629 7001_ $$00000-0001-9022-4515$$aSchaaf, G.$$b8
001050629 7001_ $$0P:(DE-Juel1)162356$$aHuesgen, P.$$b9
001050629 7001_ $$00000-0002-6482-2615$$aRoessner, U.$$b10
001050629 7001_ $$0P:(DE-Juel1)166460$$aWatt, M.$$b11
001050629 7001_ $$0P:(DE-Juel1)165155$$aArsova, B.$$b12$$eCorresponding author
001050629 773__ $$a10.1101/2025.11.03.686263
001050629 8564_ $$uhttps://www.biorxiv.org/content/10.1101/2025.11.03.686263v1
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