Sustainability America, La Isla Road, Sarteneja, Corozal District, Belize.
Department of Zoology, Centre for Applied Genetics, Jnana Bharathi Campus, Bangalore University, Bengaluru, Karnataka 560056, India.
Reprod Fertil Dev. 2024 Feb;36. doi: 10.1071/RD24014.
The term 'mitochondrial vesicle' was first used in 2003 in a description of anuran sperm and persists to this day throughout the literature on assisted reproductive technologies (ART) for amphibians. In the present paper, we argue that the term is inappropriate because the widely accepted definition of a 'vesicle' refers to an integral structure with an enclosing lipid bilayer/membrane. Moreover, there are no electron micrographs that show a vesicular structure encapsulating mitochondria on amphibian sperm heads in the literature. In fact, in 1993, the mitochondria in the anuran sperm head had been described as positioned in 'mitochondrial collars' or 'mitochondrial sheaths' surrounded by the plasma membrane of the sperm head. On the other hand, mitochondrial-derived vesicles are defined as vesicles shed from mitochondria surfaces, potentially creating confusion. Therefore, our view is that the term 'mitochondrial vesicle' should be avoided in describing the positioning of mitochondria on sperm.
“线粒体小泡”一词最早于 2003 年在描述蛙类精子时使用，至今在有关两栖动物辅助生殖技术（ART）的文献中仍在使用。在本文中，我们认为这个术语不恰当，因为被广泛接受的“囊泡”定义是指具有封闭脂质双层/膜的完整结构。此外，在文献中没有电子显微镜照片显示两栖动物精子头部有囊泡结构包裹线粒体。事实上，早在 1993 年，就有人描述过蛙类精子头部的线粒体位于“线粒体领圈”或“线粒体鞘”中，周围是精子头部的质膜。另一方面，线粒体衍生的囊泡被定义为从线粒体表面脱落的囊泡，这可能会造成混淆。因此，我们认为在描述精子中线粒体的定位时，应避免使用“线粒体小泡”一词。
