Biomechanical Model of the Xylem Vessels in Vascular Plants
• Background and Aims The xylem, or water transport system, in vascular plants adopts different morphologies that appear sequentially during growth phases. This paper proposes an explanation of these morphologies based on engineering design principles. • Methods Using microscopic observations of the...
محفوظ في:
| المؤلف الرئيسي: | |
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| التنسيق: | article |
| منشور في: |
2005
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| الوصول للمادة أونلاين: | http://hdl.handle.net/10725/3042 http://dx.doi.org/ 10.1093/aob/mci130 http://aob.oxfordjournals.org/content/95/7/1179.short |
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| _version_ | 1864513459845070848 |
|---|---|
| author | Karam, Gebran |
| author_facet | Karam, Gebran |
| author_role | author |
| dc.creator.none.fl_str_mv | Karam, Gebran |
| dc.date.none.fl_str_mv | 2005 2016-02-11T08:05:20Z 2016-02-11T08:05:20Z 2016-02-11 |
| dc.identifier.none.fl_str_mv | 0305-7364 http://hdl.handle.net/10725/3042 http://dx.doi.org/ 10.1093/aob/mci130 Karam, G. N. (2005). Biomechanical model of the xylem vessels in vascular plants. Annals of botany, 95(7), 1179-1186. http://aob.oxfordjournals.org/content/95/7/1179.short |
| dc.language.none.fl_str_mv | en |
| dc.relation.none.fl_str_mv | Annals of Botany |
| dc.rights.*.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.title.none.fl_str_mv | Biomechanical Model of the Xylem Vessels in Vascular Plants |
| dc.type.none.fl_str_mv | Article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | • Background and Aims The xylem, or water transport system, in vascular plants adopts different morphologies that appear sequentially during growth phases. This paper proposes an explanation of these morphologies based on engineering design principles. • Methods Using microscopic observations of the different growth stages, an engineering analysis of the xylem vessels as a closed cylinder under internal pressure is carried out adopting pressure vessel design concepts. • Key Results The analysis suggests that the xylem vessel structural morphology follows the ‘constant strength’ design principle, i.e. all of the material within the wall of the xylem is loaded equally to its maximum allowable stress capacity, and the amount of material used is therefore systematically minimized. The analysis shows that the different structural designs of the xylem vessel walls (annular, helical, reticulate and pitted) all quantitatively follow the constant strength design principle. • Conclusions The results are discussed with respect to growth and differentiation. It is concluded that the morphology of the xylem vessel through the different phases of growth seems to follow optimal engineering design principles |
| eu_rights_str_mv | openAccess |
| format | article |
| id | LAURepo_187c2051c96f287a4b0d18b081c2f8fb |
| identifier_str_mv | 0305-7364 Karam, G. N. (2005). Biomechanical model of the xylem vessels in vascular plants. Annals of botany, 95(7), 1179-1186. |
| language_invalid_str_mv | en |
| network_acronym_str | LAURepo |
| network_name_str | Lebanese American University repository |
| oai_identifier_str | oai:laur.lau.edu.lb:10725/3042 |
| publishDate | 2005 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Biomechanical Model of the Xylem Vessels in Vascular PlantsKaram, Gebran• Background and Aims The xylem, or water transport system, in vascular plants adopts different morphologies that appear sequentially during growth phases. This paper proposes an explanation of these morphologies based on engineering design principles. • Methods Using microscopic observations of the different growth stages, an engineering analysis of the xylem vessels as a closed cylinder under internal pressure is carried out adopting pressure vessel design concepts. • Key Results The analysis suggests that the xylem vessel structural morphology follows the ‘constant strength’ design principle, i.e. all of the material within the wall of the xylem is loaded equally to its maximum allowable stress capacity, and the amount of material used is therefore systematically minimized. The analysis shows that the different structural designs of the xylem vessel walls (annular, helical, reticulate and pitted) all quantitatively follow the constant strength design principle. • Conclusions The results are discussed with respect to growth and differentiation. It is concluded that the morphology of the xylem vessel through the different phases of growth seems to follow optimal engineering design principlesPublishedN/A2016-02-11T08:05:20Z2016-02-11T08:05:20Z20052016-02-11Articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article0305-7364http://hdl.handle.net/10725/3042http://dx.doi.org/ 10.1093/aob/mci130Karam, G. N. (2005). Biomechanical model of the xylem vessels in vascular plants. Annals of botany, 95(7), 1179-1186.http://aob.oxfordjournals.org/content/95/7/1179.shortenAnnals of Botanyinfo:eu-repo/semantics/openAccessoai:laur.lau.edu.lb:10725/30422019-01-14T11:14:42Z |
| spellingShingle | Biomechanical Model of the Xylem Vessels in Vascular Plants Karam, Gebran |
| status_str | publishedVersion |
| title | Biomechanical Model of the Xylem Vessels in Vascular Plants |
| title_full | Biomechanical Model of the Xylem Vessels in Vascular Plants |
| title_fullStr | Biomechanical Model of the Xylem Vessels in Vascular Plants |
| title_full_unstemmed | Biomechanical Model of the Xylem Vessels in Vascular Plants |
| title_short | Biomechanical Model of the Xylem Vessels in Vascular Plants |
| title_sort | Biomechanical Model of the Xylem Vessels in Vascular Plants |
| url | http://hdl.handle.net/10725/3042 http://dx.doi.org/ 10.1093/aob/mci130 http://aob.oxfordjournals.org/content/95/7/1179.short |