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Towards sustainable bioproduction systems: harnessing organic nitrogen for plant growth

Title
Towards sustainable bioproduction systems: harnessing organic nitrogen for plant growth
Funding
ARC | Discovery Projects
Contract (GA) number
DP0986495
Start Date
2009/01/01
End Date
2011/12/31
Open Access mandate
no
Organizations
-
More information
http://purl.org/au-research/grants/arc/DP0986495

 

  • Nitrogen fluxes at the root-soil interface show a mismatch of nitrogen fertilizer supply and sugarcane root uptake capacity

    Richard Brackin; Torgny Näsholm; Nicole Robinson; Stéphane Guillou; Kerry Vinall; Prakash Lakshmanan; Susanne Schmidt; Erich Inselsbacher (2015)
    Projects: ARC | Towards sustainable bioproduction systems: harnessing organic nitrogen for plant growth (DP0986495)
    Globally only ≈50% of applied nitrogen (N) fertilizer is captured by crops, and the remainder can cause pollution via runoff and gaseous emissions. Synchronizing soil N supply and crop demand will address this problem, however current soil analysis methods provide little insight into delivery and acquisition of N forms by roots. We used microdialysis, a novel technique for in situ quantification of soil nutrient fluxes, to measure N fluxes in sugarcane cropping soils receiving different ferti...

    Turning the Table: Plants Consume Microbes as a Source of Nutrients

    Paungfoo-Lonhienne, Chanyarat; Rentsch, Doris; Robatzek, Silke; Webb, Richard I.; Sagulenko, Evgeny; Näsholm, Torgny; Schmidt, Susanne; Lonhienne, Thierry G. A. (2010)
    Projects: ARC | Towards sustainable bioproduction systems: harnessing organic nitrogen for plant growth (DP0986495)
    Interactions between plants and microbes in soil, the final frontier of ecology, determine the availability of nutrients to plants and thereby primary production of terrestrial ecosystems. Nutrient cycling in soils is considered a battle between autotrophs and heterotrophs in which the latter usually outcompete the former, although recent studies have questioned the unconditional reign of microbes on nutrient cycles and the plants' dependence on microbes for breakdown of organic matter. Here ...

    Effects of externally supplied protein on root morphology and biomass allocation in Arabidopsis

    Lonhienne, Thierry G. A.; Trusov, Yuri; Young, Anthony; Rentsch, Doris; Näsholm, Torgny; Schmidt, Susanne; Paungfoo-Lonhienne, Chanyarat (2014)
    Projects: ARC | Towards sustainable bioproduction systems: harnessing organic nitrogen for plant growth (DP0986495)
    Growth, morphogenesis and function of roots are influenced by the concentration and form of nutrients present in soils, including low molecular mass inorganic N (IN, ammonium, nitrate) and organic N (ON, e.g. amino acids). Proteins, ON of high molecular mass, are prevalent in soils but their possible effects on roots have received little attention. Here, we investigated how externally supplied protein of a size typical of soluble soil proteins influences root development of axenically grown A...
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