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Geometrical relationships specifying...

University of Maryland, College Park., Cell Biology & Molecular Genetics.

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Geometrical relationships specifying the phyllotactic pattern of aquatic plants.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Geometrical relationships specifying the phyllotactic pattern of aquatic plants./
作者:	Kelly, Wanda Jean.
面頁冊數:	52 p.
附註:	Adviser: Todd J. Cooke.
Contained By:	Masters Abstracts International46-06.
標題:	Biology, Botany. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1455777
ISBN:	9780549627623

Geometrical relationships specifying the phyllotactic pattern of aquatic plants.
Kelly, Wanda Jean.

Geometrical relationships specifying the phyllotactic pattern of aquatic plants. - 52 p.

Adviser: Todd J. Cooke.

Thesis (M.S.)--University of Maryland, College Park, 2008.

Aquatic plants provide an opportunity to characterize the geometrical relationships of leaf patterning. A new polar-coordinate model was used to correlate meristem shape and leaf arrangement in aquatic plants. In aquatic plants, the primary geometrical relationship specifying spiral vs. whorled phyllotaxis is primordial position: primordia arising on the apical dome (as defined by displacement angles theta ≤ 90° during maximal phase) are often positioned in spiral patterns, whereas primordia arising on the subtending axis (as defined by displacement angles of theta ≤ 90° during maximal phase) are arranged in whorled patterns. A secondary geometrical relationship shows an inverse correlation between the primordial size: available space ratio and the magnitude of the Fibonacci numbers in spiral phyllotaxis or the number of leaves per whorl in whorled phyllotaxis. This geometrical analysis provides the morphological context for interpreting phyllotaxis mutants and for constructing realistic models phyllotactic patterns.

ISBN: 9780549627623Subjects--Topical Terms:

1017825
Biology, Botany.

Geometrical relationships specifying the phyllotactic pattern of aquatic plants.
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520 $a Aquatic plants provide an opportunity to characterize the geometrical relationships of leaf patterning. A new polar-coordinate model was used to correlate meristem shape and leaf arrangement in aquatic plants. In aquatic plants, the primary geometrical relationship specifying spiral vs. whorled phyllotaxis is primordial position: primordia arising on the apical dome (as defined by displacement angles theta ≤ 90° during maximal phase) are often positioned in spiral patterns, whereas primordia arising on the subtending axis (as defined by displacement angles of theta ≤ 90° during maximal phase) are arranged in whorled patterns. A secondary geometrical relationship shows an inverse correlation between the primordial size: available space ratio and the magnitude of the Fibonacci numbers in spiral phyllotaxis or the number of leaves per whorl in whorled phyllotaxis. This geometrical analysis provides the morphological context for interpreting phyllotaxis mutants and for constructing realistic models phyllotactic patterns.
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