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741.
Hoi-Fei Mok Ramaprasad Majumder W. Scott Laidlaw David Gregory Alan J.M. Baker Stefan K. Arndt 《International journal of phytoremediation》2013,15(7):615-632
Selecting native plant species with characteristics suitable for extraction of heavy metals may have multiple advantages over non-native plants. Six Australian perennial woody plant species and one willow were grown in a pot trial in heavy metal-contaminated biosolids and a potting mix. The plants were harvested after fourteen months and above-ground parts were analysed for heavy metal concentrations and total metal contents. All native species were capable of growing in biosolids and extracted heavy metals to varying degrees. No single species was able to accumulate heavy metals at particularly high levels and metal extraction depended upon the bioavailability of the metal in the substrate. Metal extraction efficiency was driven by biomass accumulation, with the species extracting the most metals also having the greatest biomass yield. The study demonstrated that Grevillea robusta, Acacia mearnsii, Eucalyptus polybractea, and E. cladocalyx have the greatest potential as phytoextractor species in the remediation of heavy metal-contaminated biosolids. Species survival and growth were the main determinants of metal extraction efficiency and these traits will be important for future screening of native species. 相似文献
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Stefan Arndt 《Plant Systematics and Evolution》2008,271(3-4):129-142
Due to their ploidy levels, their morphological and anatomical characters and their distribution the central alpine Festuca stricta subsp. bauzanina (2n = 8x = 56) and Festuca ovina var. guinochetii (2n = 10x = 70), both belonging to the Festuca valesiaca group, are raised to the specific level. As a new subspecies Festuca bauzanina subsp. rhaetica is described here. The taxa of the polyploid Festuca valesiaca group are morphologically, anatomically and chorologically characterised and an identification key for these taxa in the
central Alps is presented. 相似文献
746.
Henry C. Arndt William G. Biddlecom George P. Peruzzotti Warren D. Woessner 《Prostaglandins & other lipid mediators》1976,11(3):569-572
The synthesis of prostaglandin analogs incorporating the (2-hydroxycyclooctylidene)methyl moiety in place of the natural C13–C20 sidechain has been accomplished via copper-assisted conjugate addition of the (cyclooctylidene)methyllithium
to the cyclopentenone intermediates
and
. 相似文献
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