EcoMeristem, a model of morphogenesis and competition among sinks in rice. 1. Concept, validation and sensitivity analysis

Functional Plant Biology : FPB
Delphine LuquetAnne Clément-Vidal

Abstract

Because of rapid advances in functional genomics there is an increasing demand for models simulating complex traits, such as the physiological and environmental controls of plant morphology. This paper describes, validates and explores the behaviour of the structural-functional model EcoMeristem, developed for cereals in the context of the Generation Challenge Program (GCP; CGIAR). EcoMeristem constructs the plant on the basis of an organogenetic body plan, driven by intrinsic (genetic) behavioural norms of meristems. These norms consist of phenological-topological rules for organ initiation and pre-dimensioning (sink creation) and rules enabling feedbacks of the plant's resource status on the organogenetic processes. Plant resource status is expressed by a state variable called Internal Competition Index (Ic) calculated daily as the ratio of assimilate source (supply) over the sum of active sinks (demand). Ic constitutes an internal signal analogous to sugar signalling. Ic affects potential phytomer size, tiller initiation, leaf senescence, and carbohydrate storage and mobilisation. The model was calibrated and tested on IR64 rice grown in controlled environments, and validated with field observations for the same cultivar (Ph...Continue Reading

References

Jan 1, 2003·Journal of Experimental Botany·Sarah M ShersonSteven M Smith
Jan 9, 2004·Proceedings of the National Academy of Sciences of the United States of America·Kazumaru MiyoshiNori Kurata
Apr 2, 2004·Annals of Botany·Hong-Ping YanMichael Dingkuhn
Jul 1, 2004·The Plant Journal : for Cell and Molecular Biology·Arnd G HeyerLothar Willmitzer
Jan 22, 2005·Plant & Cell Physiology·Jun-Ichi ItohYasuo Nagato
Mar 3, 2005·Tree Physiology·Mathieu LéchaudelMagalie Jannoyer
Mar 16, 2005·Annals of Botany·Achim Walter, Ulrich Schurr
Jun 29, 2005·Journal of Molecular Evolution·Xuemei JiJohn Bennett

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Citations

Dec 1, 2008·Functional Plant Biology : FPB·Youhong SongJim Hanan
Jun 5, 2020·Journal of Experimental Botany·Marion GauthierBruno Andrieu
Feb 1, 2009·Functional Plant Biology : FPB·Benoît PallasJérémie Lecoeur
Dec 1, 2008·Functional Plant Biology : FPB·Angélique ChristopheJérémie Lecœur
Mar 29, 2014·The New Phytologist·Mohammad Mobashwer AlamDavid R Jordan
Dec 17, 2014·Plant, Cell & Environment·Tesfamichael H Kebrom, John E Mullet
Apr 28, 2010·Annals of Botany·Hae Koo KimGraeme Hammer
May 1, 2010·Annals of Botany·Hae Koo KimGraeme Hammer
May 6, 2009·The New Phytologist·Victor O Sadras, R Ford Denison
Nov 5, 2019·Frontiers in Plant Science·Anne SchneiderJessica Bertheloot
Dec 1, 2008·Functional Plant Biology : FPB·Katrin KahlenHartmut Stützel
Jan 30, 2015·Frontiers in Plant Science·Catherine RameauSoulaiman Sakr
Feb 1, 2007·Functional Plant Biology : FPB·Delphine LuquetMichael Dingkuhn
Apr 20, 2010·Journal of Experimental Botany·Graeme L HammerRussell C Muchow
Sep 25, 2020·Annals of Botany·Philippe de ReffyeMarc Jaeger
Feb 16, 2021·Journal of Experimental Botany·Jyotirmaya MathanAashish Ranjan

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Methods Mentioned

BETA
PLAS

Software Mentioned

EcoMeristem
SARRA
APSIM
Delphi
RUEpot
Matlab

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