Tungsten affects the cortical microtubules of Pisum sativum root cells: experiments on tungsten-molybdenum antagonism

Plant Biology
I-D S AdamakisE P Eleftheriou

Abstract

Tungsten (W) is increasingly shown to be toxic to various organisms, including plants. Apart from inactivation of molybdo-enzymes, other potential targets of W toxicity in plants, especially at the cellular level, have not yet been revealed. In the present study, the effect of W on the cortical microtubule array of interphase root tip cells was investigated, in combination with the possible antagonism of W for the pathway of molybdenum (Mo). Pisum sativum seedlings were treated with W, Mo or a combination of the two, and cortical microtubules were examined using tubulin immunofluorescnce and TEM. Treatments with anti-microtubule (oryzalin, colchicine and taxol) or anti-actomyosin (cytochalasin D, BDM or ML-7) drugs and W were also performed. W-affected cortical microtubules were low in number, short, not uniformly arranged and were resistant to anti-microtubule drugs. Cells pre-treated with oryzalin or colchicine and then treated with W displayed W-affected microtubules, while cortical microtubules pre-stabilized with taxol were resistant to W. Treatment with Mo and anti-actomyosin drugs prevented W from affecting cortical microtubules. Cortical microtubule recovery after W treatment was faster in Mo solution than in water. The...Continue Reading

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Citations

Sep 15, 2011·Journal of Experimental Botany·Jie XiongLongxing Tao
Oct 5, 2013·Protoplasma·Ioannis-Dimosthenis S AdamakisEleftherios P Eleftheriou
Jun 29, 2014·Journal of Plant Physiology·Ioannis-Dimosthenis S AdamakisEleftherios P Eleftheriou
Aug 28, 2015·Plant Signaling & Behavior·Ioannis Dimosthenis S AdamakisEleftherios P Eleftheriou
Jan 27, 2015·Environmental Science and Pollution Research International·Eleftherios P EleftheriouIoannis-Dimosthenis S Adamakis
Feb 4, 2012·Plant Signaling & Behavior·Emmanuel Panteris, Ioannis-Dimosthenis S Adamakis
Jun 10, 2016·Environmental Science and Pollution Research International·Gürcan GüleryüzŞeref Güçer
Feb 9, 2017·Plant Science : an International Journal of Experimental Plant Biology·Shiyu QinShoujun Xu
Jan 1, 2012·Plants·Ioannis-Dimosthenis S AdamakisEleftherios P Eleftheriou
May 23, 2012·Physiologia Plantarum·Eleftherios P EleftheriouEmmanuel Panteris
Mar 14, 2019·Plants·Ioannis-Dimosthenis S Adamakis, Eleftherios P Eleftheriou

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