Topic
Stackhousia
About: Stackhousia is a research topic. Over the lifetime, 2 publications have been published within this topic receiving 14 citations.
Papers
TL;DR: Nickel-hyperaccumulation ability appears to have been acquired once during diversification of Stackhousia ,b y S. tryonii.
Abstract: To elucidate the evolutionary origin of nickel (Ni) hyperaccumulation by the Australian serpentinite-endemic plant Stackhousia tryonii Bailey, phylogenetic analyses of chloroplast and nuclear DNA for Stackhousia and its close relatives were combined with assays of plant-tissue Ni concentrations. Thirty-five plants from 20 taxa were analysed by sequencing nuclear rDNA (ITS) and the plastid trnL-F region. Phylogenetic analysis of sequence data was conducted undermaximumparsimonyandBayesiansearchcriteria.Inall,100plantsfrom39taxa,includingall33Stackhousiaspecies, were analysed for Ni concentration by radial inductively coupled plasma atomic-emission spectrometry (ICP-AES). Inphylogeneticanalyses,S.tryoniiwasmonophyletic,nestedwithinamonophyleticStackhousia.OnlyS.tryoniicontained concentrationsofNi abovethehyperaccumulationthreshold(0.1%;1000ppm),containingbetween0.25%(2500ppm)and 4.1% (41000ppm) Ni by dry weight. Nickel-hyperaccumulation ability appears to have been acquired once during diversification of Stackhousia ,b yS. tryonii.
17 citations
1 Jan 2011
TL;DR: Stackhousia stratfordii W.R.Barker & Cockerton sp.
Abstract: Barker W.R. & Cockerton G.T.B. Stackhousia stratfordii (Celastraceae: Stackhousioideae), a remarkable new species from a remote location near Norseman, south-west Western Australia. Nuytsia 21(2): 69–74 (2011). Stackhousia stratfordii W.R.Barker & Cockerton sp. nov. possesses attributes unique to its genus and subfamily of opposite sub-radical leaves and flowers borne in scapes and containing three stamens. Morphological evidence is summarised arguing its placement within Stackhousia.
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2011 | 1 |
| 2010 | 1 |