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| Jansen, S.; Sano, Y.; Choat, B.; Rabaey, D.; Lens, F.; Dute, R.R.. |
| The micromorphology of pits in tracheary elements was examined in 35 species representing 29 genera of Rosaceae and related families to evaluate the assumption that angiosperm pits are largely invariant. In most Rosaceae, pit membranes between fibers and tracheids frequently appear to have amorphous thickenings with an irregular distribution. Although these structures are toruslike under the light microscope, observations by electron microscopy illustrate that they represent ‘‘pseudotori’’ or plasmodesmata-associated thickenings. These thickenings frequently extend from the periphery of the pit membrane and form a cap-like, hollow structure. Pseudotori are occasionally found in few Elaeagnaceae and Rhamnaceae and appear to be related to species with... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Fiber; Pit; Pit membrane; Pseudotorus; Rosaceae; Rosales; Torus; Tracheid; 42.58. |
| Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/423505 |
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| saberi moghadam, Mojtaba; Hassan-Beygi, Seyed reza; Aboonajmi, Mohammad. |
| Knowing the physical and mechanical properties is very important for automating the activities associated with the date pit. The objective of this study was to determine physical and mechanical properties of date pit of Mazafati cultivar as a function of moisture content. The physical properties of the pits were determined in the moisture content range of 7% to 40% (wb). The date pits was compressed along the width at 0.08, 0.46, 0.55 and 0.64 (db) moisture contents to determine required force, deformation, and energy per volume (toughness) at rupture point. The results showed that the greatest length, width, thickness were 24.43, 9.21, 7.15 mm, respectively at moisture content of 40 % (wb). With increase moisture from 7% to 40% (wb) the true density of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Date; Pit; Moisture content; Mazafati cultivar; Physical properties; Mechanical properties. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3201 |
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