Formation and function of phragmoplast during successive cytokinesis stages in higher plant meiosis

Shamina, N. V.; Gordeeva, E. I.; Kovaleva, N.M.; Seriukova, E.G.; Дорогова, Н. В.

doi:10.1016/j.cellbi.2006.12.001

Cited by 20 publications

(17 citation statements)

References 39 publications

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“…Meiotic plant cells lack a pre-prophase band (Chan and Cande, 1998), and analysis of fixed specimens suggests that phragmoplasts are formed from the central fibers of the spindle that remain after chromosomes segregation (Otegui and Staehelin, 2000;Shamina et al, 2007;Staehelin and Hepler, 1996). Although, in most cell types, the position of the metaphase plate marks the location of the spindle mid-zone, owing to anaphase asymmetry, these positions often differed in our assay.…”

Section: Discussionmentioning

confidence: 98%

Anaphase asymmetry and dynamic repositioning of the division plane during maize meiosis

Nannas

Higgins

Dawe

2016

Journal of Cell Science

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The success of an organism is contingent upon its ability to transmit genetic material through meiotic cell division. In plant meiosis I, the process begins in a large spherical cell without physical cues to guide the process. Yet, two microtubule-based structures, the spindle and phragmoplast, divide the chromosomes and the cell with extraordinary accuracy. Using a live-cell system and fluorescently labeled spindles and chromosomes, we found that the process selfcorrects as meiosis proceeds. Metaphase spindles frequently initiate division off-center, and in these cases anaphase progression is asymmetric with the two masses of chromosomes traveling unequal distances on the spindle. The asymmetry is compensatory, such that the chromosomes on the side of the spindle that is farthest from the cell cortex travel a longer distance at a faster rate. The phragmoplast forms at an equidistant point between the telophase nuclei rather than at the original spindle mid-zone. This asymmetry in chromosome movement implies a structural difference between the two halves of a bipolar spindle and could allow meiotic cells to dynamically adapt to errors in metaphase and accurately divide the cell volume.

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Section: Discussionmentioning

confidence: 98%

Anaphase asymmetry and dynamic repositioning of the division plane during maize meiosis

Nannas

Higgins

Dawe

2016

Journal of Cell Science

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“…Meiotic chromosome behavior is related to changes in microtubules (BROWN and LEMMON, 1989;SHAMINA et al, 2007). Separation of chromosomes is caused by the shortening of kinetochore microtubules, whereas formation of lagging chromosomes results from a lack of kinetochore microtubules.…”

Section: Discussionmentioning

confidence: 99%

“…In the successive cytokinesis of microsporocytes, phragmoplasts develop in the interzonal region between daughter nuclei. The formation of cell plates is associated with centrifugal expansion of the phragmoplasts and cytokinesis is completed by cytoplasmic infurrowing (SHELDON and DICKINSON, 1986;SHAMINA et al, 2007). In the simultaneous type of microsporogenesis, the phragmoplasts play different roles.…”

Section: Discussionmentioning

confidence: 99%

“…Microtubular cytoskeletons play an important role in nuclear division, cytokinesis, and apportionment of organelles during meiosis (SHELDON and DICKINSON, 1986;LEMMON, 1988c, 1991a, b;TANAKA, 1991;SHAMINA et al, 2007). The arrangement of four daughter nuclei in telophase II is determined by the orientation of metaphase II spindles (BROWN and LEMMON, 1992).…”

Section: Introductionmentioning

confidence: 99%

“…In meiosis of higher plant, phragmoplast microtubules play a role in successive cytokinesis and in some instances of simultaneous cytokinesis (SHELDON and DICKINSON, 1986;BROWN and LEMMON, 1991a, b;SCHOPFER and HEPLER, 1991;SHAMINA et al, 2007). However, in another form of simultaneous cytokinesis, the formation of cell plates does not depend on phragmoplasts and cytokinesis is accomplished by the centrifugal expansion of cell plates LEMMON, 1988c, 1996).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Distribution of Microtubular Cytoskeletons and Organelle Nucleoids During Microsporogenesis in a 2n Pollen Producer of Hybrid Populus

Wang

Kang

2009

Silvae Genetica

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The distribution of microtubular cytoskeletons and organelle nucleoids during microsporogenesis in Populus simonii Carr. x P. nigra L. 'Tongliao' was studied by indirect immunofluorescence and 4',6-diamidino-2-phenylindole (DAPI) staining. Our purpose was to reveal the relationship between changes in microtubule and chromosome behavior and cytokinesis and to explain the mechanism of 2n pollen production. We observed stable frequencies of 2n pollen production, ranging from 1.56 % to 2.29 %, between 2006 and 2008. Moreover, conjoined pollen grains were also observed. Meiotic abnormalities, including univalents, lagging chromosomes and micronuclei, were observed during microsporogenesis. Triads and dyads were also detected in meiotic products. Parallel spindles in metaphase II were unable to fuse, owing to the existence of an organelle band. Regularly, in telophase II, primary phragmoplasts were organized between sister nuclei, and secondary phragmoplasts formed between non-sister nuclei. Cell plates were initiated by centrifugal expansion of phragmoplasts and cytoplasmic infurrowing started at the junctions between the microsporocyte wall and the expanded phragmoplasts. However, a secondary phragmoplast was absent in some microsporocytes. These observations suggest that the occurrence of 2n pollen may result from the partial failure of cytokinesis caused by the absence of secondary phragmoplasts in this hybrid.

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Cell polarity, asynchronous nuclear divisions, and bidirectional cytokinesis in male meiosis in Magnolia denudata

Bai

Yang

et al. 2021

Protoplasma

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Formation and function of phragmoplast during successive cytokinesis stages in higher plant meiosis

Cited by 20 publications

References 39 publications

Anaphase asymmetry and dynamic repositioning of the division plane during maize meiosis

Anaphase asymmetry and dynamic repositioning of the division plane during maize meiosis

Distribution of Microtubular Cytoskeletons and Organelle Nucleoids During Microsporogenesis in a 2n Pollen Producer of Hybrid Populus

Cell polarity, asynchronous nuclear divisions, and bidirectional cytokinesis in male meiosis in Magnolia denudata

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