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Foreword

GREPPIN, Hubert

GREPPIN, Hubert. Foreword. In: Hubert Greppin, Claude Penel, William J. Broughton and Reto Strasser.

Integrated plant systems

. Genève : Université de Genève, 2000.

Available at:

http://archive-ouverte.unige.ch/unige:97099

Disclaimer: layout of this document may differ from the published version.

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Foreword

This book is the last of of a series of twenty ( or so) edited by the PlantCPtiolot and Biochemistry Laboratory (1965-2000) before the retirement of Hubert Greppin, after 35 years of scientific activity and conducting of this laboratory, 17 years as director of the Botany and Plant Biology Department (8 laboratories), and president during 21 years of the Botany Center (University BPBD associated with the Conservatory and Botanical Garden of Geneva City).

The different papers presented here, reflect partially the various talks set out, in February 2000, during a seminar entitled "Integrated Plant Systems". This seminar was held at the University of Geneva, in the frame of the activities of the post-graduate education committee in biological sciences of Western Switzerland (3"me cycle romand en sciences biologiques). Twenty speakers from 9 different countries came to give lectures for about fifty Ph.D. candidates and researchers.

Biology has progressively evolved from a structural and functional linear hierarchical vision to a systemic and networking physicochemistry and dynamical physicogeneric and genetic modular structure oriented in time (biophysical and biochemical clocks), and able to provide by the way of signals and messages (genetic information; epigenetic signals and messengers: biophysical, electrochemical and thermodynamical path, biochemical and genetic ways), the maintenance and preservation (homeostasy) or the changing (homeorhesis) of the life system ( cell, organism, ecosystem, biosphere). This is a necessity to be adapted in the continuously changing environment (permanent dialectic and dynamical co-action between genetic biospace versus ecospace ).

A new insight to represent the biological organization and functioning is progressively appearing in this new century; it concerns: integrated bioinformation and language and dynamical mathematical model of representation, physicomathematics and general system theory, physico-generic properties and network thermodynamics, new molecular technics (nucleic acids amplification, micro-array, etc .. )

This was the reason to create in 1997 an european magister in biological integrated systems (Prof. Thellier and Ripoll: Rouen) with the cooperation between 4 universities (Rouen, Compiegne, Leicester, Geneva). Independently of the teaching program, more than a hundred of researchers are implicated in that way on different biological levels of organization and species (Plant, animal, man; University, CNRS, INSERM, etc ... ).

It is an integrated approach on pluricellulary organisms with biophysics, molecular genetics, computering and modellisation, local and global biochemistry and physiology. The orientation of the PPB Lab. for this program is plant chronobiology and bioelectricity as fluorescent analysis applicated to bioenergetics (respectively Prof.

Greppin, Penel and Dr. Degli Agosti; Prof. Strasser, lab. of bioenergetics).

The sketching out of this new vista has been introduced for Ph.D. candidates and researchers for a long time: chronobiology (Cartigny, 1981; Freiburg, 1983; Geneva, 1996), physico-mathematical and systemic approach (1982, Geneva; 1992, Cartigny), signaling and communication in plants (Besanyon, 1987; Creteil, 1990), biological change of state and membranes (Cartigny, 1991), plant development and flowering (Geneva, 1997, 1999), global ecology (Geneva, 1997).

The organization of this meeting has been made possible with the help and

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cooperation of my colleagues at the Botany and Plant Biology Department : Prof. W.

Broughton, laboratory of Higher Plant Molecular Biology; R. Strasser, laboratory of Bioenergetics and Experimental Station of Lullier, C. Penel, laboratory of Plant Molecular Physiology; Dr. R. Degli Agosti, laboratory of Physiomatics, as the advices of old friends: Prof. A. Egorov (Moscow), Th. Gaspar (Liege) and E. Wagner (Freiburg). At last, this meeting and the publication of this last volume would not have been possible without the active assistance of PPBL collaborators. We are also gratefully indebted to Mrs. L. Von Tobe! and MM. D. Voluntaru and A. Mesrobian (passed away in January 2001) for their excellent assistance, to Mrs. M-C Wuest and C. Bomand for secretariat work and to Mrs. M-C. Wuest especially for efficient and dedicated editing work of this book.

E la nave va ...

Geneva, July 2000

H. Greppin

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