Studies

Penman Evaporation over water ( mm/day ). This is a submodel of AFRC Wheat 2 model in Simile notation (the XML version will follow shortly).

Related Publications
Porter J (1993). AFRCWHEAT2: A Model of the Growth and Development of Wheat Incorporating Responses to Water and Nitrogen. . Eur. J. Agron. 2(2): 69-82..

Originally submitted to PLaSMo on 2011-02-04 15:17:42

Number of days between 2 Julian days allowing for change of year and leap years. Assumptions : The gap between the two dates is less than 1 year also JDAY1 is before JDAY2. This is a submodel of AFRC Wheat 2 model in Simile notation (the XML version will follow shortly).  Related PublicationsPorter J (1993). AFRCWHEAT2: A Model of the Growth and Development of Wheat Incorporating Responses to Water and Nitrogen. . Eur. J. Agron. 2(2): 69-82.. Originally submitted to PLaSMo on 2011-02-04 15:24:25 ...

Transform Calendar day to Julian Day. Converts day, month, year into the equivalent Julian Day allowing for leap years. This is a submodel of AFRC Wheat 2 model in Simile notation (the XML version will follow shortly).Related PublicationsPorter J (1993). AFRCWHEAT2: A Model of the Growth and Development of Wheat Incorporating Responses to Water and Nitrogen. . Eur. J. Agron. 2(2): 69-82.. Originally submitted to PLaSMo on 2011-02-04 15:30:45

To calculate leaf and sheath dimensions for main stems and tillers given the emergence length of their leaves and empirical relationships linking leaf number to maximum laminar length. All sizes are in mm. This is a submodel of AFRC Wheat 2 model in Simile notation (the XML version will follow shortly). All variables and parameters that are inputs to the submodel are in the "inputs " submodel box, all variables changed by the submodel are outputted via the "outputs" submodel box.Related ...

To calculate today's daylength and photoperiod. Daylength is calculated following the treatment of Sellers, Physical Climatology,pp 15-16 and Appendix 2. Daylength is calculated with a correction for atmospheric refraction equivalent to 50 minutes of a degree. Photoperiod is calculated assuming that light is perceived until the centre of the sun is 6 degrees below the horizon. This is a submodel of AFRC Wheat 2 model in Simile notation (the XML version will follow shortly). All variables and ...

To return daily thermal time with base TBASE. Thermal time for a day is calculated by splitting the 24 hour period into 8 * 3 hour periods whose relative contribution to thermal time for the day is based on a cosinusoidal variation in temperature between observed maximum and minimum values. See Weir,A.H. et al.,(1984).J.Agric.Sci.,Camb.,102,371-382. This is a submodel of AFRC Wheat 2 model in Simile notation (the XML version will follow shortly).     All variables and parameters that are inputs ...

To return Vapour pressure calculated from Wet and Dry Bulb Temperatures. This is a submodel of AFRC Wheat 2 model in Simile notation (the XML version will follow shortly).

Related Publications
Porter J (1993). AFRCWHEAT2: A Model of the Growth and Development of Wheat Incorporating Responses to Water and Nitrogen.. Eur. J. Agron. 2(2): 69-82..

Originally submitted to PLaSMo on 2011-02-04 15:55:57

To return today's vernalising effect (see Weir,A.H. et al.,(1984).J.Agric.Sci.,Camb.,102,371-382). This is a submodel of AFRC Wheat 2 model in Simile notation (the XML version will follow shortly). All variables and parameters that are inputs to the submodel are in the "inputs " submodel box, all variables changed by the submodel are outputted via the "outputs" submodel box.Related PublicationsPorter J (1993). AFRCWHEAT2: A Model of the Growth and Development of Wheat Incorporating Responses to ...

This is a submodel of AFRC Wheat 2 model in Simile notation (the XML version will follow shortly). Reads and processes todays weather data. Calculates Penman evaporation and converts day/month/year to Julian day (allowing for year change and leap years). We acknowledge Mikhail Semenov for kindly allowing us to supply this Rothamsted weather data set with this model. Euler integration with 1 day time steps.Related PublicationsPorter J (1993). AFRCWHEAT2: A Model of the Growth and Development of ...

To calculate the phenological stage of the crop. Note the following definition: phase = the period between two phenological stages, ie. the phase sowing to emergence. This is a submodel of AFRC Wheat 2 model in Simile notation (the XML version will follow shortly). All variables and parameters that are inputs to the submodel are in the "inputs " submodel box, all variables changed by the submodel are outputted via the "outputs" submodel box. Euler integration with 1 day time steps.Related ...

Originally submitted to PLaSMo on 2010-12-20 14:54:15

A model of the circadian regulation of starch turnover, as published in Seaton, Ebenhoeh, Millar, Pokhilko, "Regulatory principles and experimental approaches to the circadian control of starch turnover",  J. Roy. Soc. Interface, 2013. This model is referred to as "Model Variant 1".Related PublicationsSeaton, Ebenhoeh, Millar, Pokhilko (2013). Regulatory principles and experimental approaches to the circadian control of starch turnover. Journal of the Royal Society Interface. Originally submitted ...

A model of the circadian regulation of starch turnover, as published in Seaton, Ebenhoeh, Millar, Pokhilko, "Regulatory principles and experimental approaches to the circadian control of starch turnover",  J. Roy. Soc. Interface, 2013. This model is referred to as "Model Variant 2".Related PublicationsSeaton, Ebenhoeh, Millar, Pokhilko (2013). Regulatory principles and experimental approaches to the circadian control of starch turnover. Journal of the Royal Society Interface. Originally submitted ...

A model of the circadian regulation of starch turnover, as published in Seaton, Ebenhoeh, Millar, Pokhilko, "Regulatory principles and experimental approaches to the circadian control of starch turnover",  J. Roy. Soc. Interface, 2013. This model is referred to as "Model Variant 3".Related PublicationsSeaton, Ebenhoeh, Millar, Pokhilko (2013). Regulatory principles and experimental approaches to the circadian control of starch turnover. Journal of the Royal Society Interface. Originally submitted ...

Creator - Dr. Daniel D. Seaton. Graphical overview of Arabidopsis clock model P2011 in SBGN, from SBGN-ED in VANTED v2. N.B. to pass PlaSMo validation before update, the tag was back-edited from the correct string to in this file. The file is still correctly opened in VANTED after this modification. The unmodified version is also attached. Related PublicationsFlis et al. (2015). Open ...

This model is one of five new parameter sets for P2011, published in Flis et al. Royal Society Open Biology 2015. They will be submitted to Biomodels when we have a PubMed ID for the paper. Derived from Original model: P2011.1.2 is public model ID PLM_71 version 1, http://www.plasmo.ed.ac.uk/plasmo/models/download.shtml?accession=PLM_71&version=1 This model P2011.3.1 is public model ID PLM_1041, with parameters optimised by Kevin Stratford using SBSInumerics software on the UK national ...

This model is one of five new parameter sets for P2011, published in Flis et al. Royal Society Open Biology 2015. They will be submitted to Biomodels when we have a PubMed ID for the paper. Derived from Original model: P2011.1.2 is public model ID PLM_71 version 1, http://www.plasmo.ed.ac.uk/plasmo/models/download.shtml?accession=PLM_71&version=1 This model P2011.4.1 is public model ID PLM_1042, with parameters optimised by Kevin Stratford using SBSInumerics software on the UK national ...

This model is one of five new parameter sets for P2011, published in Flis et al. Royal Society Open Biology 2015. They will be submitted to Biomodels when we have a PubMed ID for the paper. Derived from Original model: P2011.1.2 is public model ID PLM_71 version 1, http://www.plasmo.ed.ac.uk/plasmo/models/download.shtml?accession=PLM_71&version=1 This model P2011.5.1 is public model ID PLM_1043, with parameters optimised by Kevin Stratford using SBSInumerics software on the UK national ...

This model is one of five new parameter sets for P2011, published in Flis et al. Royal Society Open Biology 2015. They will be submitted to Biomodels when we have a PubMed ID for the paper. Derived from Original model: P2011.1.2 is public model ID PLM_71 version 1, http://www.plasmo.ed.ac.uk/plasmo/models/download.shtml?accession=PLM_71&version=1 This model P2011.6.1 is public model ID PLM_1044, with parameters optimised by Kevin Stratford using SBSInumerics software on the UK national ...

The models in this record were published in Flis et al. Royal Society Open Biology 2015. Their original IDs in the PlaSMo resource and IDs in Biomodels are given below. Please select files for download from the 'Related Items' list or the object tree/graph, below. 'SUBMITTED' is the original model version; 'SIMPLIFIED' removes SBML elements that were incompatible with SloppyCell software.

Original model: Arabidopsis clock model P2011.1.1 from Pokhilko et al. Mol Syst. Biol. 2012, ...

Validation. Validated against original implementation running under GNU FORTRAN 95. To allow the maximum flexiblity during validation the original FORTRAN code was modified slightly (note that no code lines were deleted). The code was run with high precision so that values were directly comparable with those in Simile even after hundreds of thousands of iterations. The values of all the variables in the original code were printed to the screen so that they could be checked against their Simile ...

Alexandra Pokhilko's model of the Arabidopsis clock, private drafts created in preparation for publication (Mol. Syst. Biol.), or as working versions with various modifications after publication. The published model version is also in PlaSMo as PLM_64 here.

Originally submitted to PLaSMo on 2011-07-16 12:31:04

Millar lab working model, extends the Arabidopsis clock model by incorporating multiple sites of inhibition of clock gene expression by TOC1. Model is included into submitted publication "Global Mapping at the Core of the Arabidopsis Circadian Clock Defines a Novel Network Structure of the Oscillator" with Paloma Mas Version 1 has two errors corrected in version 2. This private record is now superseded by the published version, which is public as PLM_70.Originally submitted to PLaSMo on 2011-12-29 ...

Model of the arabidopsis circadian clock obtained from the Bio-PEPA model. The model is based on Alexandra Pokhilko's 2010 deterministic model and includes a scaling factor omega to translate from continuous "concentrations" to discrete amounts. Light function is a smooth function switching between 0 and 1, and is parameterised in order to allow to automate experimentation with different light conditions and photoperiods.Related PublicationsMaria Luisa Guerriero, Alexandra Pokhilko, Aurora Piñas ...

The first version of the model corresponds to the one published in Pokhilko et al Mol Syst Biol 2010, which is also presented on the Mol. Syst. Biol. website and was submitted to the Biomodels database. Note: minor errors in published supplementary information are documented in a file attached to version 1; the published SBML files are correct. The second version has some names slightly modified for compatibility with the SBSI platform. Both first and second versions have values of  "dawn" fixed ...

This model is termed P2011 and derives from the article: The clock gene circuit in Arabidopsis includes a repressilator with additional feedback loops. Alexandra Pokhilko, Aurora Piñas Fernández, Kieron D Edwards, Megan M Southern, Karen J Halliday & Andrew J Millar Mol. Syst. Biol. 2012; 8: 574, submitted 9 Aug 2011 and published 6 March 2012. Link Link to Supplementary Information, including equations. Minor errors in the published Supplementary Information are described in a file attached ...

This model is termed P2012 and derives from the article: Modelling the widespread effects of TOC1 signalling on the plant circadian clock and its outputs. Alexandra Pokhilko, Paloma Mas & Andrew J Millar BMC Syst. Biol. 2013; 7: 23, submitted 10 Oct 2012 and published 19 March 2013. Link The model describes the circuit depicted in Fig. 1 of the paper (GIF will be attached soon). It updates the P2011 model from Pokhilko et al. Mol. Syst. Biol. 2012, Plasmo ID PLM_64, by including: TOC1 as a ...

Andrew's "ongoing work" record for the P2011 clock model. Many different versions, with annotations made during SBSI development in 2011-2013 - see version records.

Originally submitted to PLaSMo on 2012-05-31 22:18:27

P2011 model from PLM_43 version 6, optimised by Andrew Millar with SBSI PGA optimisation. A limited parameter set were free to optimise over < 10-fold range (less for RNA degradation rates), against ROBuST RNA data for clock genes in WT and mutants at 17C in LD, and period data in the same mutants in LL. The full SBSI costing is included, using costs from mid-June 2012 (note that costs returned with original optimisation in May were incorrectly reported).Originally submitted to PLaSMo on ...

A cell-level model of the Arabidopsis root elongation zone. This spatial model is divided up into biological cells which are further divided into simulation boxes. The original model was designed to investigate how canal cells can accumulate auxin over time rather than to investigate the transport of auxin through the canal cells per se. The main outputs of the simulations in the original paper were the steady state ratios of auxin in the canal cell protoplasts to that in the parenchyma cell ...

A cell-level model of the Arabidopsis root elongation zone. This spatial model is divided up into biological cells which are further divided into simulation boxes. The original model was designed to investigate how canal cells can accumulate auxin over time rather than to investigate the transport of auxin through the canal cells per se. The main outputs of the simulations in the original paper were the steady state ratios of auxin in the canal cell protoplasts to that in the parenchyma cell ...