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Accumulation of pinitol and other soluble sugars in water-stressed phyllodes of tropical Acacia auriculiformis in northern Australia

Liu, Lixia, Xu, Shou-Mtn, Wang, De-Li and Woo, K. C. (2008). Accumulation of pinitol and other soluble sugars in water-stressed phyllodes of tropical Acacia auriculiformis in northern Australia. New Zealand Journal of Botany,46(2):119-126.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 4 times in Scopus Article | Citations

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Title Accumulation of pinitol and other soluble sugars in water-stressed phyllodes of tropical Acacia auriculiformis in northern Australia
Author Liu, Lixia
Xu, Shou-Mtn
Wang, De-Li
Woo, K. C.
Journal Name New Zealand Journal of Botany
Publication Date 2008
Volume Number 46
Issue Number 2
ISSN 0028-825X   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-49149100895
Start Page 119
End Page 126
Total Pages 8
Place of Publication Australia
Publisher Taylor & Francis Australasia
Field of Research 270400 Botany
Abstract The effect of water stress on leaf sugars and photosynthesis was examined in clones of Acacia auriculiformis in Darwin, northern Australia. Compared with the wet season or irrigated or watered-site plants, phyllodes of plants grown in the dry season on unirrigated or water-stressed sites had significantly higher contents of pinitol and total sugars. The pinitol content constituted 50% of the phyllode total sugars content compared with 17% for fructose, 20% for glucose, and <10% for sucrose. Field-grown A. auriculiformis accumulated more pinitol but less sucrose than seedlings grown in the shade-house. Under water-stress conditions, phyllode total sugars decreased 15% in seedlings but increased 30% in trees in the field. These differences probably reflect the different developmental stages and different light levels between seedlings and trees. Thus, the contents of different sugars may be involved in osmotic adjustment during water stress in A. auriculiformis.
Keywords Acacia auriculiformis
Osmoregulation
Pinitol
Sugar alcohols
Water stress
DOI http://dx.doi.org/10.1080/00288250809509759   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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Created: Fri, 29 Aug 2014, 18:07:36 CST by Anthony Hornby