Ecology of nickel hyperaccumulator plants from ultramafic soils in Sabah (Malaysia)

van der Ent, Antony, Erskine, Peter and Sumail, Sukaibin (2015) Ecology of nickel hyperaccumulator plants from ultramafic soils in Sabah (Malaysia). Chemoecology, 25 5: 243-259. doi:10.1007/s00049-015-0192-7


Author van der Ent, Antony
Erskine, Peter
Sumail, Sukaibin
Title Ecology of nickel hyperaccumulator plants from ultramafic soils in Sabah (Malaysia)
Journal name Chemoecology   Check publisher's open access policy
ISSN 0937-7409
1423-0445
Publication date 2015-03-14
Year available 2015
Sub-type Article (original research)
DOI 10.1007/s00049-015-0192-7
Open Access Status Not Open Access
Volume 25
Issue 5
Start page 243
End page 259
Total pages 17
Place of publication Basel, Switzerland
Publisher Springer Basel AG
Collection year 2016
Language eng
Formatted abstract
Sabah (Malaysia) has one of the largest surface expressions of ultramafic rocks on Earth and in parallel hosts one of the most species-rich floras. Despite the extensive knowledge of the botanical diversity and the chemistry of these substrates, until recently the records for nickel (Ni) hyperaccumulator plants in the area have been scant. Recent intensive screening has resulted in 19 new records, adding to the 5 previously known from Sabah. The results of this study indicate that most Ni hyperaccumulator plants in Sabah are restricted to successional habitats (ridges, river banks, secondary vegetation) at elevations <1200 m a.s.l. Moreover, Ni hyperaccumulators are locally common both in terms of number of individuals and relative number of species. Nickel hyperaccumulation occurs most frequently in the Order Malpighiales (families Dichapetalaceae, Phyllanthaceae, Salicaceae, Violaceae), and is particularly common in the Phyllanthaceae (genera Phyllanthus, Glochidion). Comparison of soil chemistry with elements accumulated in hyperaccumulator foliage showed significant correlation between soil exchangeable Ca, K, P and the foliar concentrations of these elements. No direct relationship was found between soil Ni and foliar Ni, although foliar Ni was negatively correlated with soil pH. Nickel hyperaccumulation has been hypothesised to fulfil herbivory protection functions, but extensive herbivory-induced leaf damage on Ni hyperaccumulators in Sabah was common, and specialist (Ni-tolerant) insect herbivores were found on several species in this study. The identification of Ni hyperaccumulators is necessary to facilitate their conservation and potential future utilisation in Ni phytomining.
Keyword Allelopathy
Dimethylglyoxime
Elemental herbivory defense
Kinabalu Park
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Centre for Mined Land Rehabilitation Publications
Official 2016 Collection
Sustainable Minerals Institute Publications
 
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