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000890215 1001_ $$0P:(DE-Juel1)176475$$aMau, Lisa$$b0$$eFirst author$$ufzj
000890215 245__ $$aWheat Can Access Phosphorus From Algal Biomass as Quickly and Continuously as From Mineral Fertilizer
000890215 260__ $$aLausanne$$bFrontiers Media$$c2021
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000890215 520__ $$aAlgae can efficiently take up excess nutrients from waterways, making them a valuableresource potentially capable of replacing synthesized and mined fertilizers for agriculture.The capacity of algae to fertilize crops has been quantified, but it is not known how thealgae-derived nutrients become available to plants. We aimed to address this question:what are the temporal dynamics of plant growth responses to algal biomass? to betterpropose mechanisms by which plants acquire nutrients from algal biomass and therebystudy and promote those processes in future agricultural applications. Data from varioussources were transformed and used to reconstruct the nutrient release from the algaeChlorella vulgaris and subsequent uptake by wheat (Triticum aestivum L.) (as reportedin Schreiber et al., 2018). Plants had received 0.1x or 1x dried algae or wet algae, orzero, 0.1x or 1x mineral fertilizer calculated from agricultural practices for P applicationand grown to 55 days in three soils. Contents of P and other nutrients acquired fromalgae were as high as from mineral fertilizer, but varied based on moisture content andamount of algae applied to soils (by 55 days after sowing plants with 1x mineral fertilizerand 1x dried algae had 5.6 mg P g DWshoot; 2.2-fold more than those with 0 or 0.1xmineral fertilizer, 0.1x dried algae and wet algae, and 1x wet algae). Absolute and relativeleaf area growth and estimated P uptake rates showed similar dynamics, indicating thatwheat acquires P from algae quickly. A model proposes that algal fertilizer promoteswheat growth after rapid transformation in soil to inorganic nutrients. We concludetheoretically that phosphorus from algal biomass is available to wheat seedlings upon itsapplication and is released gradually over time with minor differences related to moisturecontent on application. The growth and P uptake kinetics hint at nutrient forms, includingN, and biomass stimulation worthy of research to further exploit algae in sustainableagriculture practices. Temporal resolved phenotype analyses in combination with amass-balance approach is helpful for understanding resource uptake from recycled andbiofertilizer sources by plants.
000890215 536__ $$0G:(DE-HGF)POF4-2172$$a2172 - Utilization of renewable carbon and energy sources and engineering of ecosystem functions (POF4-217)$$cPOF4-217$$fPOF IV$$x0
000890215 7001_ $$0P:(DE-Juel1)169451$$aKant, Josefine$$b1$$eCorresponding author$$ufzj
000890215 7001_ $$0P:(DE-HGF)0$$aWalker, Robert$$b2
000890215 7001_ $$0P:(DE-Juel1)159104$$aKuchendorf, Christina$$b3$$ufzj
000890215 7001_ $$0P:(DE-Juel1)166424$$aSchrey, Silvia$$b4$$ufzj
000890215 7001_ $$0P:(DE-HGF)0$$aRoessner, Ute$$b5
000890215 7001_ $$0P:(DE-Juel1)166460$$aWatt, Michelle$$b6$$eLast author
000890215 773__ $$0PERI:(DE-600)2613694-6$$a10.3389/fpls.2021.631314$$p631314$$tFrontiers in plant science$$v12$$x1664-462X$$y2021
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000890215 9101_ $$0I:(DE-HGF)0$$6P:(DE-Juel1)176475$$a Faculty of Agriculture, University Bonn$$b0
000890215 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)169451$$aForschungszentrum Jülich$$b1$$kFZJ
000890215 9101_ $$0I:(DE-HGF)0$$6P:(DE-HGF)0$$a School of BioSciences, University of Melbourne$$b2
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