Regulation of mycorrhizal symbiosis: development of a structured nutritional dual model

Jolicœur, Mario; Bouchard-Marchand, E; Bécard, G.; Perrier, Michel

doi:10.1016/s0304-3800(03)00024-3

Cited by 10 publications

(7 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Jolicoeur et al () proposed a structured model for a HR and fungus symbiosis system, focusing on nutrient (especially phosphate) concentrations and species interactions. The publication of Omar et al () contained the comparison of different mathematical approaches (Monod, Logistic, and Gompertz) for Centella asiatica (Asiatic pennywort) SU in shake flasks and a stirred tank reactor.…”

Section: Other Models Worth Mentioningmentioning

confidence: 99%

Modeling of plant in vitro cultures: Overview and estimation of biotechnological processes

Maschke

Geipel

Bley

2014

Biotech & Bioengineering

View full text Add to dashboard Cite

Plant cell and tissue cultivations are of growing interest for the production of structurally complex and expensive plant-derived products, especially in pharmaceutical production. Problems with up-scaling, low yields, and high-priced process conditions result in an increased demand for models to provide comprehension, simulation, and optimization of production processes. In the last 25 years, many models have evolved in plant biotechnology; the majority of them are specialized models for a few selected products or nutritional conditions. In this article we review, delineate, and discuss the concepts and characteristics of the most commonly used models. Therefore, the authors focus on models for plant suspension and submerged hairy root cultures. The article includes a short overview of modeling and mathematics and integrated parameters, as well as the application scope for each model. The review is meant to help researchers better understand and utilize the numerous models published for plant cultures, and to select the most suitable model for their purposes.

show abstract

Section: Other Models Worth Mentioningmentioning

confidence: 99%

Modeling of plant in vitro cultures: Overview and estimation of biotechnological processes

Maschke

Geipel

Bley

2014

Biotech & Bioengineering

View full text Add to dashboard Cite

show abstract

“…AMF confer a wide range of beneWts upon plant hosts, including increasing the nutrient absorptive capacity of plant root systems (Marschner and Dell 1994), acquisition of otherwise unavailable nutrient forms (e.g. Jolicoer et al 2002), drought resistance (e.g. Gemma et al 1997), enhancement of plant growth and vigour (e.g.…”

Section: Introductionmentioning

confidence: 99%

Above-ground herbivory causes rapid and sustained changes in mycorrhizal colonization of grasses

Wearn

Gange

2007

Oecologia

View full text Add to dashboard Cite

Arbuscular mycorrhizal fungi (AMF) play a vital role in ecosystem functioning. In most grasslands, herbivory by both vertebrate and invertebrate herbivores is common and thus in order to assess herbivore effects on multitrophic-level interactions both should be considered. This study investigated the effects of grazing by rabbit and insect herbivores on root-colonization of grasses by AMF in two lowland grasslands in southern England, UK. A long-term exclosure site was used to provide a temporal assessment in order to elucidate whether any short-term responses to herbivore removal were sustained. Root samples from three grass species at each site were analysed in terms of total mycorrhizal colonization and proportional colonization by individual mycorrhizal structures. Colonization levels were up to 1.6 times greater under moderate levels of rabbit grazing (with summer maxima of 25% and winter minima of 11%) than in intensely grazed swards or fenced plots at both sites. The change was fast (within 8 weeks), consistent throughout the sampled field plots, and temporally sustainable over a 19-year period. There was no significant effect of insect herbivory on total colonization but proportional colonization by different AM structures was affected on some sample dates where vertebrate herbivores had been removed, indicating a slight effect on fungal structure allocation. The results suggest that the type of herbivore and perhaps more importantly the intensity of grazing are key determinants of below-ground effects upon mycorrhizal-host plant symbiosis. The data suggest that the extent of mycorrhizal colonization within grass host plants is strongly influenced by C assimilation and allocation.

show abstract

“…While the uptake rate is modeled by a Michaelis–Menten kinetics for sugar, it is described by the sum of two Michaelis–Menten kinetics (a low‐ and a high‐affinity term) for nitrogen and phosphate. The growth cessation and uptake slowdown experimentally observed in case of intracellular nutrient deprivation is taken into account via thresholds N c,min , P c,min , and S c,min (Jolicoeur et al, 2003). Below the minimum nitrogen threshold, plant cells enter a quiescent stage where the maximum, low‐affinity uptake rate of nitrogen is decreased, and its high‐affinity uptake canceled.…”

Section: Descriptive Plant Growth Modelmentioning

confidence: 99%

Parametric sensitivity analysis and reduction of a detailed nutritional model of plant cell cultures

Mailier

Delmotte

Cloutier

et al. 2011

Biotech & Bioengineering

View full text Add to dashboard Cite

A kinetic model of plant nutrition described by Cloutier et al. (Cloutier et al., 2008. Biotechnol Bioeng 99:189-200) is progressively simplified so as to obtain a predictive model that describes the evolution of the biomass and the extracellular and intracellular concentrations of three determining nutrients, that is, free intracellular nitrogen, phosphate, and carbohydrate compounds. Three techniques of global sensitivity analysis are successively applied to assess the model parameter influence and potential correlation. The resulting dynamic model is able to predict plant growth for the two most encountered plant bioprocesses, namely suspension cells and hairy roots.

show abstract

Regulation of mycorrhizal symbiosis: development of a structured nutritional dual model

Cited by 10 publications

References 67 publications

Modeling of plant in vitro cultures: Overview and estimation of biotechnological processes

Modeling of plant in vitro cultures: Overview and estimation of biotechnological processes

Above-ground herbivory causes rapid and sustained changes in mycorrhizal colonization of grasses

Parametric sensitivity analysis and reduction of a detailed nutritional model of plant cell cultures

Contact Info

Product

Resources

About