Biotrophic fungi divert assimilates for their growth and thus compete with their host for carbon allocation. Bancal et al. modulate competition by shading the flag leaf of the wheat host, Triticum aestivum, and/or by varying the inoculation level of the fungi, Puccinia triticina, and then use a mixed experimental–modelling approach to combine sporulation data with an existing carbon partitioning (source–sink) model for wheat during the grain filling period. They find that fungal sporulation has a competitive priority for assimilates over grain filling, making it quite insensitive to variations in incoming radiation. Plant carbohydrate reserves are also tapped into by the combined fungi–grain sinks more frequently than by the grain sink alone, resulting in a decrease in the duration of grain filling.
You may also like
Turbid medium models and light in intercropping
Light partitioning within intercropping systems is mostly modelled by using the turbid medium analogy. Barillot et al. assess this approach by comparing it with a light-projective model based on 3-D plant mock-ups for...
December 1, 2011
3-D plant–pathogen model for disease epidemics
The relationship between Septoria tritici, a splash-dispersed disease, and its host is complex because of the interactions between the dynamic plant architecture and the vertical progress of the disease. Baccar et al...
November 20, 2011
Simulating nitrogen economy of wheat plants
The model NEMA (Nitrogen Economy Model within plant Architecture) simulates nitrogen fluxes within a wheat plant (Triticum aestivum) after flowering. Bertheloot et al. show that the model is able to predict the time...
November 16, 2011
Privacy & Cookies: This site uses cookies. By continuing to use this website, you agree to their use.
To find out more, including how to control cookies, see here: Cookie Policy
To find out more, including how to control cookies, see here: Cookie Policy
Read this in your language
@BotanyOne on Mastodon
Loading Mastodon feed...