Species Selection for Phytoremediation of 36Cl/35Cl Using Angiosperm Phylogeny and Inter-Taxa Differences in Uptake
Species Selection for Phytoremediation of 36Cl/35Cl Using Angiosperm Phylogeny and Inter-Taxa Differences in Uptake
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利用被子植物系统发育和类群间吸收差异进行 36Cl/35Cl 植物修复的物种选择
DOI：
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发表时间：
2005
影响因子：
3.7
通讯作者：
K. Fawcett
中科院分区：
文献类型：
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作者：
N. Willey;K. Fawcett
高浓度的35 Cl和放射性同位素36 Cl（自然产生的宇宙辐射和放射性铀裂变和使用中子源）可能是有问题的土壤，但可能适合植物修复，如果适当的植物可以找到。在这里，结果报告，可能有助于选择植物异常高或低吸收的36 Cl。残差最大似然分析被用来估计，从13个实验中，相对36 Cl吸收106种被子植物的被子植物。巢式方差分析，编码使用最近的被子植物发生，表明有显着的种间差异，36 Cl吸收和物种的行为是不是独立的，但通过它们的发生。真双子叶植物对36 Cl的吸收明显高于单子叶植物和相关类群，特别是丁香目、伞形目和葫芦目的吸收较高，而禾本科、百合目、十字花科和豆科的吸收较低。总体而言，35%的分类群间的变化，在36 Cl是由于该命令及以上的分类等级，一个显着的系统发育的影响相比，其他元素，类似的分析已发表。讨论了这些发现对选择植物修复35/36 Cl污染土壤的影响。
High concentrations of 35Cl and the radioisotope 36Cl (produced naturally by cosmic radiation and anthropogenically by U fission and the use of neutron sources) can be problematic in soil, but are potentially amenable to phytoremediation if appropriate plants can be found. Here, results are reported that might aid the selection of plants with unusually high or low uptake of 36Cl. A residual maximum likelihood analysis was used to estimate, from 13 experiments, relative 36Cl uptake by 106 species across the angiosperm phylogeny. Nested analysis of variance, coded using a recent angiosperm phylogeny, showed that there were significant inter-species differences in 36Cl uptake and that species behavior was not independent, but linked through their phylogeny. Eudicots had significantly higher 36Cl uptake than Monocots and related clades and, in particular the Orders Caryophyllales, Apiales, and Cucurbitales had high uptake while the Poales, Liliales, Brassicales, and Fabales had low uptake. Overall, 35% of the inter-taxa variation in 36Cl was attributed to the taxonomic ranks of Order and above, a significant phylogenetic effect compared with other elements for which similar analyses have been published. The implications of these findings for selecting plants for phytoremediation of soil contaminated with 35/36Cl are discussed.