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Sperm Mitochondria are structures unique and slightly different from somatic mitochondria . They undergo a series of morphological , biochemical and molecular changes associated with the expression of specific structural and enzymatic proteins , which are markers of maturation during spermatogenesis. These include , among others, gonadalny cytochrome cT , LDH - C4, sulfhydryl oxidase , protease LON and hsp60 . Activin A secreted by Sertoli cells when spermiogenezy mitochondria induces morphological changes spermatids , leading to the formation of condensed structures of these organelles. In contrast spergen - 1 protein appears to be responsible for the aggregation and adhesion of mitochondria around the switches forming the elongating spermatids . Mature mitochondria are elongated and curved shape ( crescent ) , exhibits a structure condensed with plenty of tightly packed characteristic combs and spaces within them. Each mitochondrion is surrounded by a unique protein capsule containing structural proteins and selenium sulfide ( SMCP ) and enzymatic ( PHGPx ) of an antioxidant . Surface of sperm mitochondria exhibits structural diversity ? specific structural specializations ( domain ) ? involved in connecting to adjacent mitochondria. They allow a stable and helical these organelles connect their ends and side surfaces. Joined together form a sheath mitochondria mitochondrial inner side which is sealed to the peripheral fibers with thick mesh insert belonging to sperm cytoskeleton . The specific molecular structure of mitochondrial proteins and mitochondrial interconnection makes the mitochondrial sheath resistant to the influence of physico -chemical and makes it functions as a single organelle , providing ATP to the movement of sperm.
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The Editorial Board
Andrzej Łukaszyk - przewodniczący, Zofia Bielańska-Osuchowska, Szczepan Biliński, Mieczysław Chorąży, Aleksander Koj, Włodzimierz Korochoda, Leszek Kuźnicki, Aleksandra Stojałowska, Lech Wojtczak

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