Suppression of Arabidopsis flowering by near‐null magnetic field is affected by light
Suppression of Arabidopsis flowering by near‐null magnetic field is affected by light
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DOI：
10.1002/bem.21927
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发表时间：
2015-09
影响因子：
1.9
通讯作者：
Chunxiao Xu;Yue Li;Yang Yu;Yuxia Zhang;Shufeng Wei
中科院分区：
文献类型：
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作者：
Chunxiao Xu;Yue Li;Yang Yu;Yuxia Zhang;Shufeng Wei
我们之前报道过，近零磁场在白光下抑制拟南芥开花，这可能与隐花色素（CRY）的功能修饰有关。为了进一步证明近零磁场对拟南芥开花的影响与CRY有关，将拟南芥野生型和CRY突变体植物在具有不同光周期和光合光子通量密度的蓝光或红光下的近零磁场中生长。我们发现，在较低强度（10 µmol/m2/s）和较短周期（12 小时周期：6 小时光照/6 小时黑暗）的蓝光下，近零磁场显着抑制拟南芥开花。然而，在检测到的光条件下，CRY1/CRY2突变体在近零磁场和局部地磁场中生长的植物的开花时间没有表现出任何差异。在红光下，在检测到的光周期和强度下，近零磁场和局部地磁场中的拟南芥开花没有表现出显着差异。这些结果表明蓝光周期和强度的变化改变了近零磁场对拟南芥开花的影响，这是由 CRY 介导的。生物电磁学。 36:476–479，2015 年。© 2015 Wiley periodicals, Inc.
We previously reported that a near‐null magnetic field suppressed Arabidopsis flowering in white light, which might be related to the function modification of cryptochrome (CRY). To further demonstrate that the effect of near‐null magnetic field on Arabidopsis flowering is associated with CRY, Arabidopsis wild type and CRY mutant plants were grown in the near‐null magnetic field under blue or red light with different light cycle and photosynthetic photon flux density. We found that Arabidopsis flowering was significantly suppressed by near‐null magnetic field in blue light with lower intensity (10 µmol/m2/s) and shorter cycle (12 h period: 6 h light/6 h dark). However, flowering time of CRY1/CRY2 mutants did not show any difference between plants grown in near‐null magnetic field and in local geomagnetic field under detected light conditions. In red light, no significant difference was shown in Arabidopsis flowering between plants in near‐null magnetic field and local geomagnetic field under detected light cycles and intensities. These results suggest that changes of blue light cycle and intensity alter the effect of near‐null magnetic field on Arabidopsis flowering, which is mediated by CRY. Bioelectromagnetics. 36:476–479, 2015. © 2015 Wiley Periodicals, Inc.