Variation in wood density and anatomy in a widespread mangrove species

Santini, Nadia S., Schmitz, Nele and Lovelock, Catherine E. (2012) Variation in wood density and anatomy in a widespread mangrove species. Trees, 26 5: 1555-1563. doi:10.1007/s00468-012-0729-0

Author Santini, Nadia S.
Schmitz, Nele
Lovelock, Catherine E.
Title Variation in wood density and anatomy in a widespread mangrove species
Journal name Trees   Check publisher's open access policy
ISSN 0931-1890
Publication date 2012-10
Sub-type Article (original research)
DOI 10.1007/s00468-012-0729-0
Volume 26
Issue 5
Start page 1555
End page 1563
Total pages 9
Place of publication Heidelberg, Germany
Publisher Springer
Collection year 2013
Language eng
Formatted abstract
Wood density is an important plant trait that influences a range of ecological processes, including resistance to damage and growth rates. Wood density is highly dependent on anatomical characteristics associated with the conductive tissue of trees (xylem and phloem) and the fibre matrix in which they occur. Here, we investigated variation in the wood density of the widespread mangrove species Avicennia marina in the Exmouth Gulf in Western Australia and in the Firth of Thames in New Zealand. We assessed how variation in xylem vessel size, fibre wall thickness and proportion of phloem within the wood contributed to variation in wood density and how these characteristics were linked to growth rates. We found the wood density of A. marina to be higher in Western Australia than in New Zealand and to be higher in taller seaward fringing trees than in scrub trees growing high in the intertidal. At the cellular level, high wood density was associated with large xylem vessels and thick fibre walls. Additionally, wood density increased with decreasing proportions of phloem per growth layer of wood. Tree growth rates were positively correlated with xylem vessel size and wood density. We conclude that A. marina can have large xylem vessel sizes and high growth rates while still maintaining high wood density because of the abundance and thickness of fibres in which vessels are found.
Keyword Firth of Thames
Exmouth Gulf
Successive cambia
Xylem vessels
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Biological Sciences Publications
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Created: Wed, 14 Nov 2012, 12:53:26 EST by Gail Walter on behalf of School of Biological Sciences