Removal of the local geomagnetic field affects reproductive growth in Arabidopsis
Removal of the local geomagnetic field affects reproductive growth in Arabidopsis
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DOI：
10.1002/bem.21788
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发表时间：
2013-09
影响因子：
1.9
通讯作者：
Chunxiao Xu;Shufeng Wei;Yan Lu;Yuxia Zhang;Chuanfang Chen;T. Song
中科院分区：
文献类型：
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作者：
Chunxiao Xu;Shufeng Wei;Yan Lu;Yuxia Zhang;Chuanfang Chen;T. Song
通过在实验室条件下在近零磁场和局部地磁场（45 μT）中培养植物整个生长期来研究去除地磁场的环境对拟南芥生长的影响。与在局部地磁场中生长的植物相比，在近零磁场中植物的生物量积累在植物从营养生长向生殖生长转换时被显著抑制，这是由于在近零磁场中植物开花延迟造成的。在生长的早期和后期，在近零磁场和当地地磁场中的植物之间的生物量积累没有显着差异。在近零磁场中，每株植物的平均角果数和种子产量分别比对照植物显著降低约22%和19%。与对照组相比，这些导致近零磁场中植物的收获指数显著降低约20%。这些结果表明，当地地磁场的去除会对拟南芥的生殖生长产生负面影响，从而影响产量和收获指数。生物电磁学34：437-442。© 2013 Wiley Periodicals，Inc.
The influence of the geomagnetic field‐removed environment on Arabidopsis growth was investigated by cultivation of the plants in a near‐null magnetic field and local geomagnetic field (45 µT) for the whole growth period under laboratory conditions. The biomass accumulation of plants in the near‐null magnetic field was significantly suppressed at the time when plants were switching from vegetative growth to reproductive growth compared with that of plants grown in the local geomagnetic field, which was caused by a delay in the flowering of plants in the near‐null magnetic field. At the early or later growth stage, no significant difference was shown in the biomass accumulation between the plants in the near‐null magnetic field and local geomagnetic field. The average number of siliques and the production of seeds per plant in the near‐null magnetic field was significantly lower by about 22% and 19%, respectively, than those of control plants. These resulted in a significant reduction of about 20% in the harvest index of plants in the near‐null magnetic field compared with that of the controls. These results suggest that the removal of the local geomagnetic field negatively affects the reproductive growth of Arabidopsis, which thus affects the yield and harvest index. Bioelectromagnetics. 34:437–442. © 2013 Wiley Periodicals, Inc.