{"product_id":"phyllotaxis-models-a-tool-for-evolutionary-biologists-hardback-9781786309136","title":"Phyllotaxis Models; A Tool for Evolutionary Biologists (Hardback) 9781786309136","description":"\u003cfont face=\"Georgia\"\u003e\r\n\u003cp\u003e\u003cfont size=\"6\"\u003ePhyllotaxis Models\u003c\/font\u003e\u003cbr\u003e\r\n\u003cfont size=\"5\"\u003eA Tool for Evolutionary Biologists\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\r\n\r\n\r\n\u003cp\u003e\u003cfont size=\"4\"\u003eJean-Paul Walch (Author), Solange Blaise (Author)\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003e9781786309136, Wiley\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003eHardback, published 29 June 2023\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003e224 pages\u003cbr\u003e23.5 x 15.6 x 1.6 cm, 0.594 kg\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\r\n\r\n\r\n\r\n\u003cp align=\"justify\"\u003e\u003cstrong\u003e\u003cfont size=\"3\"\u003e\u003cp\u003eThe 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.\u003c\/p\u003e \u003cp\u003eWith 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.\u003c\/p\u003e \u003cp\u003eFor 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.\u003c\/p\u003e \u003cp\u003eWe 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.\u003c\/p\u003e\u003c\/font\u003e\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003e\u003cp\u003eForeword ix\u003c\/p\u003e \u003cp\u003ePreface xiii\u003c\/p\u003e \u003cp\u003eAcknowledgements xvii\u003c\/p\u003e \u003cp\u003eIntroduction xix\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 1 An Introduction to Phyllotaxis 1\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e1.1 A game of spirals 1\u003c\/p\u003e \u003cp\u003e1.2 Fibonacci phyllotaxis 6\u003c\/p\u003e \u003cp\u003e1.3 Lucas phyllotaxis 8\u003c\/p\u003e \u003cp\u003e1.4 Whorled phyllotaxis 9\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 2 A History of Theoretical Phyllotaxis 13\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 3 The Static Model 25\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e3.1 Modeling the sunflower capitulum 25\u003c\/p\u003e \u003cp\u003e3.2 Packing density 28\u003c\/p\u003e \u003cp\u003e3.3 Optimization of light capture 31\u003c\/p\u003e \u003cp\u003e3.4 Discussion 33\u003c\/p\u003e \u003cp\u003e3.5 Appendix: the golden angle 34\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 4 The Dynamical Model 39\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e4.1 Description of the model 39\u003c\/p\u003e \u003cp\u003e4.2 Phyllotaxis modes (analytical model) 45\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 5 Molecular or Contact Pressure Origin? 51\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e5.1 The dynamics of phyllotaxis 51\u003c\/p\u003e \u003cp\u003e5.2 The molecular origin of phyllotaxis 52\u003c\/p\u003e \u003cp\u003e5.3 The history of the contact pressure model of phyllotaxis 61\u003c\/p\u003e \u003cp\u003e5.4 Modeling the floral meristem of Illicium 63\u003c\/p\u003e \u003cp\u003e5.5 Mechanical forces in floral development 68\u003c\/p\u003e \u003cp\u003e5.6 Physical models 69\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 6 Magnoliales and Laurales 73\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e6.1 Stability of the Fibonacci spiral 73\u003c\/p\u003e \u003cp\u003e6.2 Transient regime 77\u003c\/p\u003e \u003cp\u003e6.3 Continuity of the Fibonacci spiral 78\u003c\/p\u003e \u003cp\u003e6.4 Magnoliales 81\u003c\/p\u003e \u003cp\u003e6.4.1 Magnoliaceae 82\u003c\/p\u003e \u003cp\u003e6.4.2 Annonaceae 92\u003c\/p\u003e \u003cp\u003e6.5 Laurales 97\u003c\/p\u003e \u003cp\u003e6.5.1 Atherospermataceae 98\u003c\/p\u003e \u003cp\u003e6.5.2 Monimiaceae 105\u003c\/p\u003e \u003cp\u003e6.6 Discussion 107\u003c\/p\u003e \u003cp\u003e6.6.1 Regular spirals 109\u003c\/p\u003e \u003cp\u003e6.6.2 Permuted spirals 109\u003c\/p\u003e \u003cp\u003e6.6.3 Quasi-symmetric spirals 110\u003c\/p\u003e \u003cp\u003e6.6.4 Whorls 111\u003c\/p\u003e \u003cp\u003e6.6.5 Dédoublement 112\u003c\/p\u003e \u003cp\u003e6.6.6 Pseudo-whorls 112\u003c\/p\u003e \u003cp\u003e6.6.7 Hemicycles 113\u003c\/p\u003e \u003cp\u003e6.6.8 Synorganization 113\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 7 Inflorescences 119\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e7.1 Bracteole theory 119\u003c\/p\u003e \u003cp\u003e7.2 Inflorescences 123\u003c\/p\u003e \u003cp\u003e7.2.1 Racemes 126\u003c\/p\u003e \u003cp\u003e7.2.2 Cymes 131\u003c\/p\u003e \u003cp\u003e7.2.3 Involucra and spathes 154\u003c\/p\u003e \u003cp\u003eConclusion 161\u003c\/p\u003e \u003cp\u003eReferences 183\u003c\/p\u003e \u003cp\u003eIndex 193\u003c\/p\u003e\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003eSubject Areas: Biology, life sciences [\u003ca title=\"See our other books on Biology, life sciences\" href=\"https:\/\/freshlyprintedbooks.co.uk\/search?q=%22Biology,%20life%20sciences%20%5BPS%5D%22\"\u003ePS\u003c\/a\u003e]\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\r\n\u003c\/font\u003e","brand":"Wiley-ISTE","offers":[{"title":"Brand New","offer_id":52446793040152,"sku":"9781786309136","price":111.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/2037\/5320\/files\/9781786309136.jpg?v=1785113837","url":"https:\/\/freshlyprintedbooks.co.uk\/products\/phyllotaxis-models-a-tool-for-evolutionary-biologists-hardback-9781786309136","provider":"Freshly Printed Books","version":"1.0","type":"link"}