Detail of Figure3A_PC3_Two-celled_embryo



Project
Title
Fluorescence images of mitochondrial distribution dynamics during the two-celled embryo (interphase) of the rice zogotes staining by PC3.
Description
Fluorescence images of mitochondrial distribution dynamics during the two-celled embryo (interphase) of the rice zogotes staining by PC3.
Release, Updated
2023-05-29
License
CC BY
Kind
Image data
File Formats
.tif
Data size
3.0 MB

Organism
Oryza sativa temperate japonica subgroup ( NCBI:txid1736657 )
Strain(s)
-
Cell Line
-
Reporter
PC3

Datatype
-
Molecular Function (MF)
Biological Process (BP)
mitochondrion distribution ( GO:0048311 )
Cellular Component (CC)
Biological Imaging Method
fluorescence microscopy ( Fbbi:00000246 )
X scale
0.2075665 micrometer/pixel
Y scale
0.2075665 micrometer/pixel
Z scale
-
T scale
-

Image Acquisition
Experiment type
-
Microscope type
-
Acquisition mode
-
Contrast method
-
Microscope model
-
Detector model
-
Objective model
-
Filter set
-

Summary of Methods
See details in Aini H, et. al. (2022) Plant Reprod. Mar;35(1):47-60.
Related paper(s)

Hanifah Aini, Yoshikatsu Sato, Kakishi Uno, Tetsuya Higashiyama, Takashi Okamoto (2022) Dynamics of mitochondrial distribution during development and asymmetric division of rice zygotes., Plant reproduction, Volume 35, Number 1, pp. 47-60

Published in 2022 Mar (Electronic publication in Oct. 11, 2021, midnight )

(Abstract) KEY MESSAGE: Mitochondria change their distribution from nuclear peripheral to uniformly distributed in cytoplasm during zygotic development of rice, and the mitochondria re-distribute around nucleus for even segregation into daughter cells. Mitochondria are highly dynamic organelles that actively move and change their localization along with actin filaments during the cell cycle. Studies of mitochondrial dynamics and distribution in plant cells have mainly been conducted on somatic cells, and our understanding about these aspects during the formation and development of zygotes remains limited. In this study, mitochondrial nucleoids of rice egg cells and zygotes were successfully stained by using N-aryl pyrido cyanine 3 (PC3), and their intracellular localization and distribution were demonstrated. Mitochondria in rice egg cells were small and coccoid in shape and were primarily distributed around the nucleus. Upon gamete fusion, the resulting zygotes showed mitochondrial dispersion and accumulation equivalent to those in rice egg cells until 8 h after fusion (HAF). Around 12 HAF, the mitochondria started to disperse throughout the cytoplasm of the zygotes, and this dispersive distribution pattern continued until the zygotes entered the mitotic phase. At early prophase, the mitochondria redistributed from dispersive to densely accumulated around the nucleus, and during the metaphase and anaphase, the mitochondria were depleted from possible mitotic spindle region. Thereafter, during cell plate formation between daughter nuclei, the mitochondria distributed along the phragmoplast, where the new cell wall was formed. Finally, relatively equivalent amounts of mitochondria were detected in the apical and basal cells which were produced through asymmetric division of the zygotes. Further observation by treating the egg cell with latrunculin B revealed that the accumulation of mitochondria around the nuclear periphery in egg cells and early zygotes depended on the actin meshwork converging toward the egg or zygote nucleus.
(MeSH Terms)

Contact
Takashi Okamoto , Tokyo Metropolitan University , Department of Biological Sciences
Contributors

OMERO Dataset
OMERO Project
Source