Estimates of biomechanical forces in Magnaporthe grisea.
The mechanical actions of the fungus Magnaporthe grisea raise many intriguing questions concerning the forces involved. These include: (1) the material properties of the appressorial wall; (2) the strength of the adhesive that keeps the appressorium anchored to the rice leaf surface; and (3) the for...
| প্রধান লেখক: | , |
|---|---|
| বিন্যাস: | Journal article |
| ভাষা: | English |
| প্রকাশিত: |
2006
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| _version_ | 1826291573689679872 |
|---|---|
| author | Goriely, A Tabor, M |
| author_facet | Goriely, A Tabor, M |
| author_sort | Goriely, A |
| collection | OXFORD |
| description | The mechanical actions of the fungus Magnaporthe grisea raise many intriguing questions concerning the forces involved. These include: (1) the material properties of the appressorial wall; (2) the strength of the adhesive that keeps the appressorium anchored to the rice leaf surface; and (3) the forces involved in the penetration process whereby a peg is driven through the host cell wall. In this paper we give order of magnitude estimates for all three of these quantities. A simple Young-Laplace law type argument is used to show that the appressorial wall elastic modulus is of order 10-100 MPa; and an adaptation of standard adhesion theory indicates a lower bound on the strength of the appressorial adhesive to be of the order 500 J/m(2). Drawing on ideas from plasticity theory and ballistics, estimates of the penetration force raise interesting questions about experiments performed on the penetration of inert substrates by the fungus. |
| first_indexed | 2024-03-07T03:01:26Z |
| format | Journal article |
| id | oxford-uuid:b116a434-11a7-4aa4-b977-13d4cc2e9030 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:01:26Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:b116a434-11a7-4aa4-b977-13d4cc2e90302022-03-27T04:01:20ZEstimates of biomechanical forces in Magnaporthe grisea.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b116a434-11a7-4aa4-b977-13d4cc2e9030EnglishSymplectic Elements at Oxford2006Goriely, ATabor, MThe mechanical actions of the fungus Magnaporthe grisea raise many intriguing questions concerning the forces involved. These include: (1) the material properties of the appressorial wall; (2) the strength of the adhesive that keeps the appressorium anchored to the rice leaf surface; and (3) the forces involved in the penetration process whereby a peg is driven through the host cell wall. In this paper we give order of magnitude estimates for all three of these quantities. A simple Young-Laplace law type argument is used to show that the appressorial wall elastic modulus is of order 10-100 MPa; and an adaptation of standard adhesion theory indicates a lower bound on the strength of the appressorial adhesive to be of the order 500 J/m(2). Drawing on ideas from plasticity theory and ballistics, estimates of the penetration force raise interesting questions about experiments performed on the penetration of inert substrates by the fungus. |
| spellingShingle | Goriely, A Tabor, M Estimates of biomechanical forces in Magnaporthe grisea. |
| title | Estimates of biomechanical forces in Magnaporthe grisea. |
| title_full | Estimates of biomechanical forces in Magnaporthe grisea. |
| title_fullStr | Estimates of biomechanical forces in Magnaporthe grisea. |
| title_full_unstemmed | Estimates of biomechanical forces in Magnaporthe grisea. |
| title_short | Estimates of biomechanical forces in Magnaporthe grisea. |
| title_sort | estimates of biomechanical forces in magnaporthe grisea |
| work_keys_str_mv | AT gorielya estimatesofbiomechanicalforcesinmagnaporthegrisea AT taborm estimatesofbiomechanicalforcesinmagnaporthegrisea |