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Distribution of plastids and mitochondria during male gametophyte formation in Tinantia erecta (Jacq.) Fenzl

During meiosis in microsporogenesis, autonomous cellular organelles, i.e., plastids and mitochondria, move and separate into daughter cells according to a specific pattern. This process called chondriokinesis is characteristic for a given plant species. The key criterion for classification of the ch...

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Autores principales: Marciniec, Rafał, Zięba, Emil, Winiarczyk, Krystyna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Vienna 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6579867/
https://www.ncbi.nlm.nih.gov/pubmed/30852672
http://dx.doi.org/10.1007/s00709-019-01363-5
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author Marciniec, Rafał
Zięba, Emil
Winiarczyk, Krystyna
author_facet Marciniec, Rafał
Zięba, Emil
Winiarczyk, Krystyna
author_sort Marciniec, Rafał
collection PubMed
description During meiosis in microsporogenesis, autonomous cellular organelles, i.e., plastids and mitochondria, move and separate into daughter cells according to a specific pattern. This process called chondriokinesis is characteristic for a given plant species. The key criterion for classification of the chondriokinesis types was the arrangement of cell organelles during two meiosis phases: metaphase I and telophase I. The autonomous organelles participate in cytoplasmic inheritance; therefore, their precise distribution to daughter cells determines formation of identical viable microspores. In this study, the course of chondriokinesis during the development of the male gametophyte in Tinantia erecta was analyzed. The study was conducted using optical and transmission electron microscopes. During microsporogenesis in T. erecta, autonomous cell organelles moved in a manner defined as a neutral-equatorial type of chondriokinesis. Therefore, metaphase I plastids and mitochondria were evenly dispersed around the metaphase plate and formed an equatorial plate between the daughter nuclei in early telophase I. Changes in the ultrastructure of plastids and mitochondria during pollen microsporogenesis were also observed.
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spelling pubmed-65798672019-07-03 Distribution of plastids and mitochondria during male gametophyte formation in Tinantia erecta (Jacq.) Fenzl Marciniec, Rafał Zięba, Emil Winiarczyk, Krystyna Protoplasma Original Article During meiosis in microsporogenesis, autonomous cellular organelles, i.e., plastids and mitochondria, move and separate into daughter cells according to a specific pattern. This process called chondriokinesis is characteristic for a given plant species. The key criterion for classification of the chondriokinesis types was the arrangement of cell organelles during two meiosis phases: metaphase I and telophase I. The autonomous organelles participate in cytoplasmic inheritance; therefore, their precise distribution to daughter cells determines formation of identical viable microspores. In this study, the course of chondriokinesis during the development of the male gametophyte in Tinantia erecta was analyzed. The study was conducted using optical and transmission electron microscopes. During microsporogenesis in T. erecta, autonomous cell organelles moved in a manner defined as a neutral-equatorial type of chondriokinesis. Therefore, metaphase I plastids and mitochondria were evenly dispersed around the metaphase plate and formed an equatorial plate between the daughter nuclei in early telophase I. Changes in the ultrastructure of plastids and mitochondria during pollen microsporogenesis were also observed. Springer Vienna 2019-03-09 2019 /pmc/articles/PMC6579867/ /pubmed/30852672 http://dx.doi.org/10.1007/s00709-019-01363-5 Text en © The Author(s) 2019 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Original Article
Marciniec, Rafał
Zięba, Emil
Winiarczyk, Krystyna
Distribution of plastids and mitochondria during male gametophyte formation in Tinantia erecta (Jacq.) Fenzl
title Distribution of plastids and mitochondria during male gametophyte formation in Tinantia erecta (Jacq.) Fenzl
title_full Distribution of plastids and mitochondria during male gametophyte formation in Tinantia erecta (Jacq.) Fenzl
title_fullStr Distribution of plastids and mitochondria during male gametophyte formation in Tinantia erecta (Jacq.) Fenzl
title_full_unstemmed Distribution of plastids and mitochondria during male gametophyte formation in Tinantia erecta (Jacq.) Fenzl
title_short Distribution of plastids and mitochondria during male gametophyte formation in Tinantia erecta (Jacq.) Fenzl
title_sort distribution of plastids and mitochondria during male gametophyte formation in tinantia erecta (jacq.) fenzl
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6579867/
https://www.ncbi.nlm.nih.gov/pubmed/30852672
http://dx.doi.org/10.1007/s00709-019-01363-5
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