Obsrvations on the Fine structure of the Testicular Interstitial Cells in the Camel (Camelus Dromedarious)

Abstract

Testicular interstitial cells of the camel are polygonal in shape with abundant smooth endoplasmic reticulum (SER) occurring as a network of tubules. Elements of a welldeveloped Golgi complex are seen in many parts of the cytoplasm. There is a moderate number of mitochondria with predominantly lamellar cristae and dense intramitochondrial granules. Lipid droplets vary in size and number from cell to cell. Lysosomal bodies are commonly encountered in the cytoplasm. Other cytoplasmic constituents include microfilaments, peroxisomes, a few pathches of rough endoplasmic reticulum and occasional glycogen particles. The functional significance of these observations is discussed in relation to comparative observations on other vertebrates as in relation to histochemical findings on camel testis. There is sufficient evidence to indicate that the interstitial cells in the camel testis resemble interstitial cells of other vertebrates. Letdig cells during the non‐breeding season possess abundant lipid droplets, large lysosomal bodies together with narrow cisternae of SER, i.e. features of inactivity. Maximal activity is seen during the rutting season and it is suggested that this activity correlates with the of seminiferous epithelium and accessory sex glands.

The morphological postnatal development of the testis of the Nubian bucks

“…They showed oval or elongated nuclei with abundant cytoplasmic organelles including mitochondria and dilated profiles of RER. Filaments and pinocytotic vesicles were identified and they were similar to those reported in the camel testis (Tingari et al, 1979).…”

“…It consisted of one continuous layer of myoid cells, the outer surface of which was covered by scattered fibroblasts; many collagenous fibres intermingled with the cellular components. Except for an apparent thickness in the first layer, the structure is generally similar to that of the man, cat and camel (Burgos et al, 1970; Moniem et al, 1980; Ross & Long, 1966; Tingari et al, 1979).…”

Lack of detection of the Middle East respiratory syndrome coronavirus (MERS-CoV) nucleic acids in some Hyalomma dromedarii infesting some Camelus dromedary naturally infected with MERS-CoV

“…Males only approach females during the breeding (rutting season), which starts from late Oct to late April each year. Moreover, male camels displays an aggressive such as fighting between females for mating, and thus should be approached cautiously [22]. Animals usually shared common sources of food and water.…”

“…We selected 9/12 positive animals heavily infested with ticks and representing (15%) of the total herd for the collection of ticks. The selection of these target animals is based on the lowest Ct values (17)(18)(19)(20)(21)(22)(23)(24)(25) among the positive animals. To confirm the identity of the positive MERS-CoV animals, we sequenced some of the amplicons targeting the E gene.…”