Aluminum and nutrient concentrations in species native to central Brazil
Aluminum and nutrient concentrations in species native to central Brazil
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巴西中部本土物种的铝和营养物浓度
DOI：
10.1080/00103629609369752
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发表时间：
1996
影响因子：
1.8
通讯作者：
J. Sprent
中科院分区：
文献类型：
--
作者：
I. Geoghegan;J. Sprent
摘要对产于巴西塞拉多及其邻近地区巴伊亚和米纳斯吉拉斯的8个被子植物科40种植物进行了铝含量测定。结果表明，豆科、菊科、茜草科和菊科4个科20种植物叶片铝含量超过1000 mg/kg干重。这构成了第一个记录，积累铝，最值得注意的是某些物种的caesalpinioid属Chamaecrista。积累铝的植物叶片中的铝含量从匍匐决明的16,390 mg/kg干重到粘决明的1012 mg/kg干重不等。这些原生植物在处女地上没有受到高浓度铝的视觉不良影响，事实上，它们似乎有一种有效的机制，可以从土壤中吸收所有养分，并在其他作物物种非常缺乏的水平上生长和繁荣。其它阳离子含量在铝积累与非铝积累之间差异不显著。
Abstract Forty species from eight angiosperm families occurring in the Cerrado and neighboring regions of Bahia and Minas Gerais in Brazil were examined for aluminum (Al) content. Twenty species from four families (Leguminosae, Compositae, Rubiaceae, and Melastomataceae) were found to have leaf Al contents above 1000 mg/kg dry wt. This constitutes the first record of nodulating legumes accumulating Al, most notably certain species of the caesalpinioid genus Chamaecrista. The amount of Al in the leaves of the accumulating species ranged from 16,390 mg/kg dry wt in Chamaecrista repens to 1012 mg/kg dry wt in Chamaecrista viscosa. These native plants on virgin soil had no visual adverse effects from the high concentration of Al, in fact, they seemed to have an efficient mechanism for absorbing all nutrients from the soil and growing and flourishing at levels considered very deficient for other crop species. The percentage of other foliar cations was not significantly different between Al accumulating or non‐...