Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2019.117638 |
New insights into wood anatomy and function relationships: How Eucalyptus challenges what we already know | |
Fernandez, M. E.1,2,8; Barotto, A. J.1,3; Martinez Meier, A.4,8; Gyenge, J. E.1,2,8; Teson, N.5; Quinones Martorello, A. S.1,2; Merlo, E.6; Salda, G. Dalla4,8; Rozenberg, P.7,8; Monteoliva, S.1,3 | |
2019-12-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2019 |
卷号 | 454 |
文章类型 | Article |
语种 | 英语 |
国家 | Argentina; Spain; France |
英文摘要 | Multispecies surveys have shown that there is a weak but significant trade-off between xylem efficiency and safety in woody species, with no species maximizing both attributes at the same time. Relationships between xylem structure and function are studied mostly at the interspecific level, with few studies considering the relationships at the intraspecific level, particularly in angiosperms. Studies have shown that relationships between xylem anatomy or wood density and vulnerability to cavitation (which determines xylem safety) observed in multi-species surveys may be different to those observed within a species. This raises the question about the value of multispecies studies to shed light over what is adaptive within a given species, the organization level at which natural and human selection operates. To contribute to this debate, we studied xylem structure and function in four Eucalyptus species, and made focus within one of them, E. globulus, to determine if patterns observed at the interspecific level are also held within a species. Eucalyptus species have a xylem composed by solitary vessels surrounded and connected to imperforate tracheary cells and parenchyma, a particular anatomy poorly known in terms of its function. Correlation analyses revealed that the trends observed between vessel size (mean and distribution) and vulnerability to cavitation are similar at the interspecific and intraspecific levels. Moreover, no trade-off has been observed between xylem efficiency (maximum hydraulic conductivity) and safety (water potential at 12% and 50% of hydraulic conductivity loss), but the opposite trend: individuals with mean larger vessels presented lower vulnerability to cavitation. Cells around vessels (parenchyma, vasicentric tracheids, fibertracheids) could be involved in this phenomenon since they correlate both with maximum hydraulic conductivity (positively) and vulnerability to cavitation (negatively) at the interspecific level. In addition, large xylem vessels presented smaller pits than small xylem vessels. This suggests that pit size is involved in the lack of trade-off between xylem safety and efficiency. Finally, vulnerability to cavitation was correlated with branch and stem wood density of the same tree, but correlations had opposite sign depending on the plant organ. These results provide new insights into the relationships between wood structure and function of angiosperm species. |
英文关键词 | Vulnerability to cavitation Drought resistance Solitary vessels Xylem efficiency Xylem safety Pits size Wood density |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000500372100018 |
WOS关键词 | IMPERFORATE TRACHEARY ELEMENTS ; INTERVASCULAR PIT MEMBRANES ; FIR PSEUDOTSUGA-MENZIESII ; CAVITATION RESISTANCE ; HYDRAULIC ARCHITECTURE ; XYLEM CAVITATION ; PHENOTYPIC PLASTICITY ; TREE MORTALITY ; VULNERABILITY ; DENSITY |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/224807 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Consejo Nacl Invest Cient & Tecn, Buenos Aires, DF, Argentina; 2.INTA, AER Tandil, EEA Balcarce, Grp Ecol Forestal, Tandil, Argentina; 3.Univ Nacl La Plata, Fac Ciencias Agr & Forestales, La Plata, Buenos Aires, Argentina; 4.INTA, Grp Ecol Forestal LEEMA, EEA Bariloche, San Carlos De Bariloche, Rio Negro, Argentina; 5.INTA, EEA Concordia, Concordia, Argentina; 6.MaderaPlus Calidad Forestal SL, Parque Tecnol Galicia,Ed CEI, Orense, Spain; 7.INRA, UMR0588 Biol Integree Valorisat Divers Arbres & F, Orleans, France; 8.INRA France INTA, Int Associated Lab FORESTIA, Cordoba, Argentina |
推荐引用方式 GB/T 7714 | Fernandez, M. E.,Barotto, A. J.,Martinez Meier, A.,et al. New insights into wood anatomy and function relationships: How Eucalyptus challenges what we already know[J]. FOREST ECOLOGY AND MANAGEMENT,2019,454. |
APA | Fernandez, M. E..,Barotto, A. J..,Martinez Meier, A..,Gyenge, J. E..,Teson, N..,...&Monteoliva, S..(2019).New insights into wood anatomy and function relationships: How Eucalyptus challenges what we already know.FOREST ECOLOGY AND MANAGEMENT,454. |
MLA | Fernandez, M. E.,et al."New insights into wood anatomy and function relationships: How Eucalyptus challenges what we already know".FOREST ECOLOGY AND MANAGEMENT 454(2019). |
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