The study by the Commonwealth Scientific and Industrial Research Organisation in Western Australia showed levels of the precious metal were highest in trees growing directly over gold seams, one of which was 115 feet down.
这项研究成果是由澳大利亚西部的联邦科学与工业研究组织成员做出的,该研究组织发现,直接生长在金矿层上的桉树叶中的黄金含量是最高的,其中一个金矿在地下115英尺(约35米)深。
The researchers believe the gold was taken up by the trees’ extensive roots from while scouring for water during times of drought.
研究者们相信,树叶中含有的金子是树根在干旱时期、四处蔓生以寻找水源时被吸取到树中的。
It was then transported through the tree to the leaves, where concentrations are higher than in the twigs, trunk or surface soil.
被树根吸取的金子被输送到枝干和叶子中,金子在叶子中的密集度比在树枝、树干和表层土壤中都要高。
The researchers said: ‘Gold is probably toxic to plants and is moved to extremities, such as leaves in order to reduce deleterious biochemical reactions.’
研究者说,“对于植物来说,黄金是有毒的,因此黄金被传送至树叶等植物的末端,这样可以减少破坏性的生化反应。”
Writing in the journal Nature Communications, they said it was the first time that gold had been found naturally incorporated into a living thing.
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