In Planta Response of Arabidopsis to Photothermal Impact Mediated by Gold Nanoparticles
In Planta Response of Arabidopsis to Photothermal Impact Mediated by Gold Nanoparticles
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DOI：
10.1002/smll.201502461
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发表时间：
2016-02-03
期刊：
影响因子：
13.3
通讯作者：
Braam, Janet
中科院分区：
文献类型：
--
作者：
Koo, Yeonjong;Lukianova-Hleb, Ekaterina Y.;Braam, Janet
金纳米粒子（GNP）的光热效应的生物反应已被证明，并在不同的系统中的各种应用，除了一个重要的类-植物。在这里，GNP通过拟南芥根和易位到叶的吸收报告。成功的等离子体纳米气泡的产生和声学信号检测在植物中被证明。此外，拟南芥叶窝藏GNP和暴露于连续激光或非相干光显示整个叶表面的温度升高和诱导的热休克调节基因的表达。总的来说，这些结果表明，拟南芥可以很容易地采取GNP通过根和易位颗粒到叶组织。一旦在叶子内，GNP可以充当光热剂，用于按需远程激活植物中的局部生物过程。
Biological responses to photothermal effects of gold nanoparticles (GNPs) have been demonstrated and employed for various applications in diverse systems except for one important class - plants. Here, the uptake of GNPs through Arabidopsis thaliana roots and translocation to leaves are reported. Successful plasmonic nanobubble generation and acoustic signal detection in planta is demonstrated. Furthermore, Arabidopsis leaves harboring GNPs and exposed to continuous laser or noncoherent light show elevated temperatures across the leaf surface and induced expression of heat-shock regulated genes. Overall, these results demonstrate that Arabidopsis can readily take up GNPs through the roots and translocate the particles to leaf tissues. Once within leaves, GNPs can act as photothermal agents for on-demand remote activation of localized biological processes in plants.