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A B S T R A C T B O O K – A B S T R A C T S O F T A L K S SYNTHETIC BIOLOGY: CELL-CELL COMMUNICATION TOOLS FOR ENGINEERING MORPHOGENESIS IN PLANTS AND MICROBES James Ajioka, Jim Haseloff, James Brown, PJ Steiner, Tim Rudge, Fernan Federici University of Cambridge, Cambridge, United Kingdom E-mail: ja131@hermes.cam.ac.uk 11 X X I V S P P S C O N G R E S S 2 0 1 1 Invited talk 1 Synthetic Biology consciously employs engineering principles such as modularity, abstraction and standardization where biological/genetic parts (e.g. protein coding sequences), devices (e.g. bacterial operons) and systems (e.g. sporulation) are characterized. Using computational modeling and a standardized method of DNA assembly, a myriad of genetic designs can be constructed from a basic set of modular parts. The notion of modularity extends to higher order phenomena in biology such as multicellular development (e.g. plant organs) and multi-organism interactions (e.g. microbial biofilms). Rational engineering of neomorphic structures requires the ability to control self-organized pattern formation systems. Central to this process is defining proliferating cell cohorts via intercellular signaling, so cell-cell communication becomes an essential property for the control and rational design of multicellular assemblages. Bacterial quorum sensing systems are well-characterized cell-cell communication systems that can be de-constructed in a modular fashion. Gram-negative bacteria use homoserine lactones as intercellular signals to initiate cellular changes in response upon achieving a specific cell density. In contrast, Gram-positive bacteria employ small peptides as signaling molecules in quorum sensing. Examples of each type of signaling system have been de-constructed into signal sender and receiver devices.
Plenary session 2 THE BIOLOGY OF ALGAE Jean-David Rochaix A B S T R A C T B O O K – A B S T R A C T S O F T A L K S Departments of Molecular Biology and Plant Biology, University of Geneva, Geneva, Switzerland E-mail: Jean-David.Rochaix@unige.ch The alga Chlamydomonas reinhardtii has emerged as a powerful model system because of its small size, fast growth and short sexual cycle. Its nuclear, chloroplast and mitochondrial genomes have been entirely sequenced. This alga is amenable to both forward and reverse genetic analysis and efficient transformation methods for the nuclear, chloroplast and mitochondrial compartments have been established. It is thus well suited for fundamental biological research. Here I will first focus on the biogenesis of the photosynthetic apparatus, a process which depends on the concerted interplay between the chloroplast and nuclear genetic systems and show how a newly developed repressible chloroplast gene expression system has been used to elucidate the role of essential chloroplast genes. Because the functioning of the photosynthetic apparatus is strongly influenced by environmental conditions, we also study how algae adjust to changes in the quality and quantity of light. One of these adjustments, called state transitions, involves an adaptive reconfiguration of the light-harvesting complex within the thylakoid membrane and a reorganization of the photosynthetic electron transport chain. It leads to the balancing of the absorbed light excitation energy between photosystem I and photosystem II and allows algal cells to respond to their metabolic needs for ATP. 12 X X I V S P P S C O N G R E S S 2 0 1 1
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Page 3 and 4: Foreword eword ord A B S T R A C T
Page 5 and 6: Program of the Congress gram of the
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Page 11: Plenary session 1 A B S T R A C T B
Page 15 and 16: Session 1. Biotechnology and synthe
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Page 19 and 20: Session 2. Systems biology and -omi
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Page 27 and 28: Pleanary session 4 A B S T R A C T
Page 29 and 30: Invited talk 4 A B S T R A C T B O
Page 31 and 32: Session 5.Cell biology A B S T R A
Page 33 and 34: Session 6.Organelle biology A B S T
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Page 37 and 38: Session 7.Development A B S T R A C
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Page 41 and 42: Pleanary session 6 A B S T R A C T
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A B S T R A C T B O O K - A B S T R
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Sapporo Medical University, Sapporo
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SCF = A B S T R A C T B O O K - A B
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A B S T R A C T B O O K - L I S T O
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A B S T R A C T B O O K - L I S T O
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Sponsors onsors ors A B S T R A C T
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1. Front Cover.cdr - CORE

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