Phyllotaxis Models

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linkedin"> <img alt="logo" src="design/rs/linkedin.png"/></a><br> </div> </div> </div> <div class="container subjects"> <div class="row search"> <div class="col-sm-4 col-sm-offset-4"> <form action="search.php" method="get"> <input type="text" name="s" maxlength="120" placeholder="Search" /><input type="submit" value=" " /> </form> </div> </div> </div> </header> <div class="container content"> <div class="row separateur"> <div class="col-sm-12 separateur"> <h1>Phyllotaxis Models</h1> <br> <h3 class="align-center">A Tool for Evolutionary Biologists</h3> </div> <div class="col-lg-2 col-md-3 col-sm-4"> <div class="row separateur-xs"> <div class="col-lg-12 col-md-12 col-sm-12 col-xs-4 col-lg-offset-0 col-md-offset-0 col-sm-offset-0 col-xs-offset-4"> <img src="data/covers/doc_cover_12-6-23-11-55-16_medium.jpg" class="img-100" alt="Phyllotaxis Models"/> </div> </div> </div> <div class="col-lg-10 col-md-9 col-sm-8"> <p><strong>Jean-Paul Walch</strong>,<em> Scientist</em>, France <br><strong>Solange Blaise</strong>,<em> University of Paris-Sud</em>, France <br></p> <p></p> <p></p> <hr> <div class="row data-books"> <div class="col-lg-6 col-md-5 col-sm-7"> <p>ISBN : 9781786309136</p> <p>Publication Date : <strong>August 2023</strong></p> <p>Hardcover <strong>220 pp</strong></p> <p><strong>165.00 USD</strong></p> </div> <div class="col-lg-6 col-md-7 col-sm-5 align-center"> <p>Co-publisher</p> <a target="_blank" href="http://www.wiley.com/" class="copublisher-logo" title="Wiley"><img alt="Wiley" src="data/co-publisher/wiley.png"/></a><a target="_blank" href="http://onlinelibrary.wiley.com/" class="copublisher-logo" title="Wiley Online Library"><img alt="Wiley Online Library" src="data/co-publisher/wiley-online-library.png"/></a> </div> </div> </div> </div> <div class="row separateur"> <div class="col-sm-12"> <h3>Description</h3> <br> <p class="text-justify"> The equations of phyllotaxis were discovered by Douady and Couder: these describe the inhibition “force” generated by an incipient primordium, preventing the initiation of other primordia in its vicinity: the method that was lacking was to take into account the distance of primordia to the meristem apex over the course of its development.<br /> <br /> With these parameters, our model integrates both biochemical “forces” (inhibition due to auxin) and mechanical forces (contact pressure). This powerful tool allows us to revisit many important notions of plant biology.<br /> <br /> For example, we model auxin concentrations at the plant apex, as well as the development of vegetative and reproductive meristems. We also explain why the whorls of monocots are trimerous and those of plants with quincuncial perianths are pentamerous. We design a geometric method for reconstructing inflorescences from their building blocks, i.e. floral meristems.<br /> <br /> We also show that phyllotaxic spirals are only the application of a general property of symmetry, the advantages of which have been exploited by natural selection.<br /> </p> </div> </div> <div class="row separateur"> <div class="col-sm-12"> <h3>Contents</h3> <br> <p> 1. An Introduction to Phyllotaxis.<br /> 2. A History of Theoretical Phyllotaxis.<br /> 3. The Static Model.<br /> 4. The Dynamical Model.<br /> 5. Molecular or Contact Pressure Origin?<br /> 6. Magnoliales and Laurales.<br /> 7. Inflorescences.<br /> <br /> </p> </div> </div> <div class="row separateur"> <div class="col-sm-12"> <h3>About the authors/editors</h3> <br> <p class="text-justify"> Jean-Paul Walch is a former computer scientist for large French companies in the oil and electricity distribution sectors.<br /> <br /> Solange Blaise is a former Associate Professor at Université Paris-Sud, Laboratoire Écologie, Systématique et Évolution, France.<br /> </p> </div> </div> <div class="row separateur"> <div class="col-sm-6"> <h3>Downloads</h3> <br> <a href="data/doc1-8-6-23-18-04-53.pdf" class="link-download"> <img src="design/file-PDF.png" title="Download PDF file" alt="PDF file"/> <p> <span>Table of Contents</span><br> <span>PDF File 174 Kb</span> </p> </a> </div> </div> <div class="row separateur"> <div class="col-sm-12"> <h3>Related subject</h3> <br> <ul class="ul-no-deco"> <li><a href="subject.php?id=8OTI">Biology</a></li> </ul> </div> </div> </div> <footer> <div class="container"> <div class="row"> <div class="col-sm-3 align-center"> <a title="Follow @isteltd" target="_blank" href="https://twitter.com/iste_editions?lang=fr" class="social twitter"> <img alt="logo" src="design/rs/twitter.png"/></a> <a title="Facebook" target="_blank" href="https://fr-fr.facebook.com/ISTEpublishing/" class="social facebook"> <img alt="logo" src="design/rs/facebook.png"/></a> <a title="Linked In" target="_blank" href="https://fr.linkedin.com/company/iste-group" class="social linkedin"> <img alt="logo" src="design/rs/linkedin.png"/></a> </div> <div class="col-sm-6 col-text-footer"> <p>ISTE Ltd – 27-37 St George’s Road – London SW19 4EU – United Kingdom<br /><br /> Tel : <strong>0044 208 879 4580</strong></p><br /> </div> <div class="col-sm-3"> <ul class="nav-footer"> <li><a title="Privacy and Terms" href="index.php">Privacy and Terms</a></li> </ul> </div> </div> </div> </footer> <script type="text/javascript" src="js/ghi-nav.js"></script>  </body> </html>

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Phyllotaxis Models - ISTE