The cytomictic channels in pollen mother cells of tobacco can be formed by two distinct ways: on the basis of plasmodesmata and de novo without any relation to ones. Cytomictic channels formation it was shown to be possible on the basis of single plasmodesma. It is not unlikely that special electron-dense bodies involve de novo formation of the channels. Also the role of cytomictic channels in the pollen development regulation is discussed.
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Saudi J Biol Sci
September 2022
Department of Biology, College of Science, King Khalid University, Abha 61413, Saudi Arabia.
Cytomixis is a common phenomenon observed in meiotic cells such as anther which is influenced by various factors. Use of pesticides is a common practice in agriculture. However, it is not known whether pesticides can induce cytomixis in plant cells and induce genetic variation.
View Article and Find Full Text PDFProtoplasma
May 2018
Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, pr. Lavrentieva 10, Novosibirsk, Russian Federation, 630090.
The migration of nuclei between plant cells (cytomixis) is a mysterious cellular phenomenon frequently observable in the male meiosis of higher plants. Cytomixis attracts attention because of unknown cellular mechanisms underlying migration of nuclei and its potential evolutionary significance, since the genetic material is transferred between the cells that form pollen. Although cytomixis was discovered over a century ago, the advance in our understanding of this process has been rather insignificant because of methodological difficulties.
View Article and Find Full Text PDFCell Biol Int
March 2017
Institute of Cytology and Genetics, Siberian Branch, Russian Academy of Sciences, Prospekt Lavrentyeva 10, Novosibirsk, 630090, Russia.
Behavior of nucleolus during the nuclear migration between plant cells (cytomixis) is studied for the first time in the tobacco male meiosis. As is shown, the nucleolus is located in a nonrandom manner in the migrating nuclei. In the majority of cases, the nucleolus resides on the nuclear pole strictly opposite to the cytomictic channel.
View Article and Find Full Text PDFThe efficiencies of the induction of cytomixis in microsporogenesis by thermal stress are compared in tobacco (N. tabacum L.) and barley (H.
View Article and Find Full Text PDFThe intercellular translocation of chromatin material along with other cytoplasmic contents among the proximate meiocytes lying in close contact with each other commonly referred as cytomixis was reported during microsporogenesis in Phaseolus vulgaris L., a member of the family Fabaceae. The phenomenon of cytomixis was observed at three administered doses of gamma rays viz.
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