Dynamics of cavitation in a Douglas-fir tree-ring: transition-wood, the lord of the ring?
The objective of this work wa s to investigate the dynamics of embolism formation within a Douglas fir tree ring . Four resistant and four vulnerable 10 year old trees were selected among 50 trees, based on their P 50 . Stem s amples , taken next to those used to obtain the vulnerability to cavitati...
| Autores principales: | , , , , , |
|---|---|
| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
INRA
2020
|
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/7219 https://jplanthydro.org/article/view/31 https://doi.org/10.20870/jph.2014.e005 |
| _version_ | 1855483963969110016 |
|---|---|
| author | Dalla Salda, Guillermina Fernandez, María Elena Sergent, Anne Sophie Rozenberg, Philippe Badel, Eric Martinez Meier, Alejandro |
| author_browse | Badel, Eric Dalla Salda, Guillermina Fernandez, María Elena Martinez Meier, Alejandro Rozenberg, Philippe Sergent, Anne Sophie |
| author_facet | Dalla Salda, Guillermina Fernandez, María Elena Sergent, Anne Sophie Rozenberg, Philippe Badel, Eric Martinez Meier, Alejandro |
| author_sort | Dalla Salda, Guillermina |
| collection | INTA Digital |
| description | The objective of this work wa s to investigate the dynamics of embolism formation within a Douglas fir tree ring . Four resistant and four vulnerable 10 year old trees were selected among 50 trees, based on their P 50 . Stem s amples , taken next to those used to obtain the vulnerability to cavitation curves, were collected and submitted to increasing positive pressures, in order to simulate increasing tension caused by water stress in the xylem . Then the conductive surface of the samples was stained and s canned and the images were analyzed. X ray microdensity profiles were obtained on the same samples. The microdensity profiles of the 2011 ring
were analyzed in three parts, earlywood, transition w ood and latewood. The dynamics of embolism propagation was observed separately in these three parts. O ur results showed that the initiation and the propagation of the cavitation follow a discrete trend, with at least two successive initiation events: first cavitation initiate s and propagate s rapidly in the latewood . Then, a second cavitation event begin s and spread s in the earlywood and eventually propagates to the transition wood, which remains the last conductive part in the ring before full embolism. W e observed that resistant to cavitation trees showed lower transition wood density than vulnerable to cavitation trees. |
| format | Artículo |
| id | INTA7219 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | INRA |
| publisherStr | INRA |
| record_format | dspace |
| spelling | INTA72192020-05-11T15:08:55Z Dynamics of cavitation in a Douglas-fir tree-ring: transition-wood, the lord of the ring? Dalla Salda, Guillermina Fernandez, María Elena Sergent, Anne Sophie Rozenberg, Philippe Badel, Eric Martinez Meier, Alejandro Abies Pseudotsuga Menziesii Vulnerabilidad Madera Xilema Vulnerability Wood Xylem Abeto de Douglas Densidad de la Madera The objective of this work wa s to investigate the dynamics of embolism formation within a Douglas fir tree ring . Four resistant and four vulnerable 10 year old trees were selected among 50 trees, based on their P 50 . Stem s amples , taken next to those used to obtain the vulnerability to cavitation curves, were collected and submitted to increasing positive pressures, in order to simulate increasing tension caused by water stress in the xylem . Then the conductive surface of the samples was stained and s canned and the images were analyzed. X ray microdensity profiles were obtained on the same samples. The microdensity profiles of the 2011 ring were analyzed in three parts, earlywood, transition w ood and latewood. The dynamics of embolism propagation was observed separately in these three parts. O ur results showed that the initiation and the propagation of the cavitation follow a discrete trend, with at least two successive initiation events: first cavitation initiate s and propagate s rapidly in the latewood . Then, a second cavitation event begin s and spread s in the earlywood and eventually propagates to the transition wood, which remains the last conductive part in the ring before full embolism. W e observed that resistant to cavitation trees showed lower transition wood density than vulnerable to cavitation trees. Estación Experimental Agropecuaria Bariloche Fil: Dalla Salda, Guillermina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área de Recursos Forestales. Grupo de Ecología Forestal; Argentina Fil: Fernandez, Maria Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Agencia de Extensión Rural Tandil. Consejo Nacional de Investigaciones Cientificas y Técnicas; Argentina Fil: Sergent, Anne Sophie. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Rozenberg, Philippe. INRA. Biologie intégrée pour la valorisation de la diversité des arbres et de la forêt; Francia Fil: Badel, Eric. INRA. Biologie intégrée pour la valorisation de la diversité des arbres et de la forêt; Francia Fil: Martinez Meier, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área de Recursos Forestales. Grupo de Ecología Forestal; Argentina 2020-05-11T14:57:31Z 2020-05-11T14:57:31Z 2014-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/7219 https://jplanthydro.org/article/view/31 2426-413X https://doi.org/10.20870/jph.2014.e005 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf INRA Journal of Plant Hydraulics 1 (Noviembre 2014) |
| spellingShingle | Abies Pseudotsuga Menziesii Vulnerabilidad Madera Xilema Vulnerability Wood Xylem Abeto de Douglas Densidad de la Madera Dalla Salda, Guillermina Fernandez, María Elena Sergent, Anne Sophie Rozenberg, Philippe Badel, Eric Martinez Meier, Alejandro Dynamics of cavitation in a Douglas-fir tree-ring: transition-wood, the lord of the ring? |
| title | Dynamics of cavitation in a Douglas-fir tree-ring: transition-wood, the lord of the ring? |
| title_full | Dynamics of cavitation in a Douglas-fir tree-ring: transition-wood, the lord of the ring? |
| title_fullStr | Dynamics of cavitation in a Douglas-fir tree-ring: transition-wood, the lord of the ring? |
| title_full_unstemmed | Dynamics of cavitation in a Douglas-fir tree-ring: transition-wood, the lord of the ring? |
| title_short | Dynamics of cavitation in a Douglas-fir tree-ring: transition-wood, the lord of the ring? |
| title_sort | dynamics of cavitation in a douglas fir tree ring transition wood the lord of the ring |
| topic | Abies Pseudotsuga Menziesii Vulnerabilidad Madera Xilema Vulnerability Wood Xylem Abeto de Douglas Densidad de la Madera |
| url | http://hdl.handle.net/20.500.12123/7219 https://jplanthydro.org/article/view/31 https://doi.org/10.20870/jph.2014.e005 |
| work_keys_str_mv | AT dallasaldaguillermina dynamicsofcavitationinadouglasfirtreeringtransitionwoodthelordofthering AT fernandezmariaelena dynamicsofcavitationinadouglasfirtreeringtransitionwoodthelordofthering AT sergentannesophie dynamicsofcavitationinadouglasfirtreeringtransitionwoodthelordofthering AT rozenbergphilippe dynamicsofcavitationinadouglasfirtreeringtransitionwoodthelordofthering AT badeleric dynamicsofcavitationinadouglasfirtreeringtransitionwoodthelordofthering AT martinezmeieralejandro dynamicsofcavitationinadouglasfirtreeringtransitionwoodthelordofthering |