First insights into the functional role of vasicentric tracheids and parenchyma in eucalyptus species with solitary vessels: do they contribute to xylem efficiency or safety?
The relationship between hydraulic specific conductivity (ks) and vulnerability to cavitation (VC) with size and number of vessels has been studied in many angiosperms. However, few of the studies link other cell types (vasicentric tracheids (VT), fibre-tracheids, parenchyma) with these hydraulic fu...
| Autores principales: | , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2016
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/86080 |
| Aporte de: |
| id |
I19-R120-10915-86080 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ingeniería Forestal Eucalyptus camaldulensis Eucalyptus globulus Eucalyptus viminalis imperforate tracheary elements vulnerability to cavitation xylem connectivity xylem hydraulic conductivity |
| spellingShingle |
Ingeniería Forestal Eucalyptus camaldulensis Eucalyptus globulus Eucalyptus viminalis imperforate tracheary elements vulnerability to cavitation xylem connectivity xylem hydraulic conductivity Barotto, Antonio José Fernández Long, María Elena Gyenge, Javier Meyra, Ariel Germán Martinez Meier, Alejandro Monteoliva, Silvia Estela First insights into the functional role of vasicentric tracheids and parenchyma in eucalyptus species with solitary vessels: do they contribute to xylem efficiency or safety? |
| topic_facet |
Ingeniería Forestal Eucalyptus camaldulensis Eucalyptus globulus Eucalyptus viminalis imperforate tracheary elements vulnerability to cavitation xylem connectivity xylem hydraulic conductivity |
| description |
The relationship between hydraulic specific conductivity (ks) and vulnerability to cavitation (VC) with size and number of vessels has been studied in many angiosperms. However, few of the studies link other cell types (vasicentric tracheids (VT), fibre-tracheids, parenchyma) with these hydraulic functions. Eucalyptus is one of the most important genera in forestry worldwide. It exhibits a complex wood anatomy, with solitary vessels surrounded by VT and parenchyma, which could serve as a good model to investigate the functional role of the different cell types in xylem functioning. Wood anatomy (several traits of vessels, VT, fibres and parenchyma) in conjunction with maximum ks and VC was studied in adult trees of commercial species with medium-to-high wood density (Eucalyptus globulus Labill., Eucalyptus viminalis Labill. and Eucalyptus camaldulensis Dehnh.). Traits of cells accompanying vessels presented correlations with functional variables suggesting that they contribute to both increasing connectivity between adjacent vessels-and, therefore, to xylem conduction efficiency-and decreasing the probability of embolism propagation into the tissue, i.e., xylem safety. All three species presented moderate-to-high resistance to cavitation (mean P50 values = -2.4 to -4.2MPa) with no general trade-off between efficiency and safety at the interspecific level. The results in these species do not support some well-established hypotheses of the functional meaning of wood anatomy. |
| format |
Articulo Articulo |
| author |
Barotto, Antonio José Fernández Long, María Elena Gyenge, Javier Meyra, Ariel Germán Martinez Meier, Alejandro Monteoliva, Silvia Estela |
| author_facet |
Barotto, Antonio José Fernández Long, María Elena Gyenge, Javier Meyra, Ariel Germán Martinez Meier, Alejandro Monteoliva, Silvia Estela |
| author_sort |
Barotto, Antonio José |
| title |
First insights into the functional role of vasicentric tracheids and parenchyma in eucalyptus species with solitary vessels: do they contribute to xylem efficiency or safety? |
| title_short |
First insights into the functional role of vasicentric tracheids and parenchyma in eucalyptus species with solitary vessels: do they contribute to xylem efficiency or safety? |
| title_full |
First insights into the functional role of vasicentric tracheids and parenchyma in eucalyptus species with solitary vessels: do they contribute to xylem efficiency or safety? |
| title_fullStr |
First insights into the functional role of vasicentric tracheids and parenchyma in eucalyptus species with solitary vessels: do they contribute to xylem efficiency or safety? |
| title_full_unstemmed |
First insights into the functional role of vasicentric tracheids and parenchyma in eucalyptus species with solitary vessels: do they contribute to xylem efficiency or safety? |
| title_sort |
first insights into the functional role of vasicentric tracheids and parenchyma in eucalyptus species with solitary vessels: do they contribute to xylem efficiency or safety? |
| publishDate |
2016 |
| url |
http://sedici.unlp.edu.ar/handle/10915/86080 |
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Repositorios |
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1764820489272819713 |