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Migration of DNA-Containing Organelles between Tobacco Microsporocytes during Cytomixis

Migration of DNA-Containing Organelles between Tobacco Microsporocytes during Cytomixis Ultrastructural analysis of intercellular migration of DNA-containing organelles (nuclei, mitochondria, and plastids) in tobacco microsporogenesis during cytomixis was conducted. It was demonstrated for the first time that the migrating part of the nucleus is covered with ribosomes and can contain the accumulation of nuclear pores. The possibility of mitochondrial migration between the plant cells was proven for the first time. It was demonstrated that mitochondria extremely rarely pass into neighboring cells, and their movement occurs through one cytomictic channel. In turn, plastids can generate the accumulations around cytomictic channels and actively migrate between the cells, even through small size cytomictic channels. It was established that plastids can pass into another cell through one or several cytomictic channels, and several plastids can also simultaneously migrate through one channel. The consequences of migration of DNA-containing organelles in the cells producing the pollen are discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

Migration of DNA-Containing Organelles between Tobacco Microsporocytes during Cytomixis

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Pleiades Publishing, Inc.
Subject
Life Sciences; Developmental Biology; Animal Anatomy / Morphology / Histology
ISSN
1062-3604
eISSN
1608-3326
DOI
10.1134/S1062360418030050
Publisher site
See Article on Publisher Site

Abstract

Ultrastructural analysis of intercellular migration of DNA-containing organelles (nuclei, mitochondria, and plastids) in tobacco microsporogenesis during cytomixis was conducted. It was demonstrated for the first time that the migrating part of the nucleus is covered with ribosomes and can contain the accumulation of nuclear pores. The possibility of mitochondrial migration between the plant cells was proven for the first time. It was demonstrated that mitochondria extremely rarely pass into neighboring cells, and their movement occurs through one cytomictic channel. In turn, plastids can generate the accumulations around cytomictic channels and actively migrate between the cells, even through small size cytomictic channels. It was established that plastids can pass into another cell through one or several cytomictic channels, and several plastids can also simultaneously migrate through one channel. The consequences of migration of DNA-containing organelles in the cells producing the pollen are discussed.

Journal

Russian Journal of Developmental Biology – Springer Journals

Published: Jun 1, 2018

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