Remodelling of mitochondria during spermiogenesis of Chinese soft-shelled turtle (Pelodiscus sinensis)

Reproduction, Fertility, and Development
Abdul HaseebQiu-Sheng Chen

Abstract

Mitochondria are vital cellular organelles that have the ability to change their shape under different conditions, such as in response to stress, disease, changes in metabolic rate, energy requirements and apoptosis. In the present study, we observed remodelling of mitochondria during spermiogenesis and its relationship with mitochondria-associated granules (MAG). At the beginning of spermiogenesis, mitochondria are characterised by their round shape. As spermiogenesis progresses, the round-shaped mitochondria change into elongated and then swollen mitochondria, subsequently forming a crescent-like shape and finally developing into onion-like shaped mitochondria. We also noted changes in mitochondrial size, location and patterns of cristae at different stages of spermiogenesis. Significant differences (P<0.0001) were found in the size of the different-shaped mitochondria. In early spermatids transitioning to the granular nucleus stage, the size of the mitochondria decreased, but increased subsequently during spermiogenesis. Changes in size and morphological variations were achieved through marked mitochondrial fusion. We also observed a non-membranous structure (MAG) closely associated with mitochondria that may stimulate or co...Continue Reading

References

Jan 30, 1979·Cell and Tissue Research·C De MartinoB Silvestrini
Jan 1, 1978·The Anatomical Record·L Russell, B Frank
Apr 1, 1991·The Anatomical Record·R A HessD H Gist
May 13, 1999·The Journal of Biological Chemistry·G HajnóczkyA P Thomas
May 21, 1999·Human Reproduction Update·A MeinhardtJ Seitz
Jun 1, 2000·Development, Growth & Differentiation·A ReunovR Wu
Apr 3, 2002·The EMBO Journal·Tony J CollinsMartin D Bootman
Jan 14, 2005·Molecular Biology of the Cell·George B JohnJiping Zha
May 20, 2006·Cell Death and Differentiation·J E ChipukD R Green
Oct 10, 2006·Nature Cell Biology·Seok-Yong ChoiMichael A Frohman
Dec 28, 2006·Hypertension·Eiki Takimoto, David A Kass
Aug 29, 2007·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Li ZhangQiu-Sheng Chen
Jul 16, 2008·Biochimica Et Biophysica Acta·Michael ZickAndreas S Reichert
Jul 3, 2010·Mitochondrion·Singh RajenderAbbas Ali Mahdi
Mar 15, 2011·Developmental Cell·Alexei A Aravin, David C Chan
May 17, 2011·The Journal of Biological Chemistry·Daniela De los Rios CastilloOscar Flores-Herrera
Jul 14, 2012·Systems Biology in Reproductive Medicine·Sophie ChocuCharles Pineau
Aug 4, 2012·Micron : the International Research and Review Journal for Microscopy·Xunguang BianQiusheng Chen
Sep 18, 2012·Chemical Reviews·Marco Colombini
Oct 23, 2012·Spermatogenesis·Lacramioara Fabian, Julie A Brill
Oct 25, 2012·The Journal of Biological Chemistry·Wen-Xing DingXiao-Ming Yin
Jun 19, 2013·Molecular and Cellular Endocrinology·João Ramalho-Santos, Sandra Amaral
Jul 28, 2013·Journal of Vascular Research·John G McCarronSusan Chalmers
Aug 1, 2013·Reproduction : the Official Journal of the Society for the Study of Fertility·Alexandra AmaralJoão Ramalho-Santos
Aug 11, 2016·Scientific Reports·Amy E VincentMartin Picard

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