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| Home > Publications database > The effects of algae fertilizer on wheat root morphology |
| Poster (Other) | FZJ-2020-00641 |
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2019
Please use a persistent id in citations: http://hdl.handle.net/2128/24106
Abstract: Global food supply is largely dependent on staple crops; amongst them bread wheat (<i>Triticum aestivum</i>, L.). To secure quantity and quality of food worldwide, new sustainable agricultural strategies are needed. An option is the replacement of finite rock phosphate with renewable phosphorus sources, for example algal biomass. Wheat roots can acquire similar amounts of phosphorus from algae as compared to rock phosphate sources, but show alterations in morphology<sup>1</sup>. Therefore we hypothesize that (1) algal phosphorus is available to wheat and is taken up by the root systems directly, and (2) differences in root morphology between rock phosphate and algal biomass reflect a change in uptake mode. Our approach will combine chemical characterization of algal fertilizer and its degradation with mass balance analyses and plant phenotyping experiments to quantify the phosphorus forms and their uptake mode by wheat and its root system. EcoFABs (Ecosystem FABbrications) will be utilized for sterile cultivation of single plants of wheat and its model Brachypodium, treated with algae. EcoFABs were developed for live-analysis of the root and the rhizosphere by microscopy in controlled micro-environments<sup>2</sup>. Temporally resolved analysis of the medium will support the exploration of dynamics in phosphorus pools and the identification of inorganic and organic forms used by plants. We expect that algal nutrients can and will be utilized by the plant and that we will observe changes in morphology, metabolism and exudate composition in and around the root. The overall aim is to identify traits that will allow efficient application of algae fertilizer for agricultural systems.1. C. Schreiber et al., J. Appl. Phycol. 30, 2827–2836 (2018).2. J. Gao et al., J. Vis. Exp., 1–16 (2018).
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