FRUCTOSE AND CITRIC ACID IN THE MALE ACCESSORY GLANDS OF THE INDIAN PALM SQUIRREL, FUNAMBULUS PENNANTI (WROUGHTON)

SUMMARY The sites of formation of fructose and citric acid in the male accessory glands of reproduction in the Indian palm squirrel, Funambulus pennanti, are described. The seminal vesicle secretes only fructose in concentrations much higher than any recorded so far in a rodent. The compact prostate produces both fructose and citric acid. The findings are discussed in relation to the sites of formation of these constituents in other rodents.

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SITES OF FORMATION OF FRUCTOSE, CITRIC ACID AND SIALIC ACID IN THE ACCESSORY GLANDS OF THE GIANT FRUIT BAT, PTEROPUS GIGANTEUS GIGANTEUS (BRÜNNICH)

Journal of Endocrinology ◽

10.1677/joe.0.0460413 ◽

1970 ◽

Vol 46 (4) ◽

pp. 413-NP ◽

Cited By ~ 8

Author(s):

M. RAJALAKSHMI ◽

M. R. N. PRASAD

Keyword(s):

Sialic Acid ◽

Citric Acid ◽

Seminal Vesicle ◽

Genital Tract ◽

Male Genital Tract ◽

Male Accessory Glands ◽

Accessory Glands ◽

Fruit Bat ◽

Male Genital

SUMMARY The morphology of the male genital tract and the sites of formation of fructose, citric acid and sialic acid in the male accessory glands of the giant fruit bat, Pteropus giganteus giganteus are described. The seminal vesicle secretes only fructose while the prostate and ampullary glands secrete both fructose and citric acid. Cowper's glands secrete large amounts of sialic acid. However, considerable variations in content and concentration of these constituents are found within the group.

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The effect of under-feeding on the genital functions of a bull

The Journal of Agricultural Science ◽

10.1017/s0021859600057531 ◽

1953 ◽

Vol 43 (3) ◽

pp. 343-347 ◽

Cited By ~ 24

Author(s):

T. Mann ◽

A. Walton

Keyword(s):

Citric Acid ◽

Food Intake ◽

Recovery Period ◽

Experimental Period ◽

Secretory Function ◽

Male Accessory Glands ◽

Accessory Glands ◽

Normal Feeding

1. A study was made of the effect of underfeeding on the genital functions in the bull. Regular weekly collections of semen were made during (1) a 5-week pre-experimental period of normal feeding, (2) a 23-week experimental period of under-feeding, and (3) a 25-week post-experimental period of recovery.2. Although the food intake was reduced to such an extent that the bull began to lose weight at a rate of 6·5 kg. (1 stone) per week, the volume and density of semen and the motility and morphology of the spermatozoa were not significantly changed.3. In contrast to the testes, the secretory function of the male accessory glands was markedly affected by under-feeding. The concentration of fructose and citric acid in semen decreased to about 30 and 60% respectively of the original levels. During the recovery period the values for fructose and citric acid gradually returned to normal.

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Metabolic activity in tissue transplants. Hormone-induced formation of fructose and citric acid in transplants from accessory glands of reproduction

Proceedings of the Royal Society of London Series B Biological Sciences ◽

10.1098/rspb.1949.0037 ◽

1949 ◽

Vol 136 (884) ◽

pp. 461-471 ◽

Cited By ~ 9

Keyword(s):

Citric Acid ◽

Seminal Vesicle ◽

Hormone Treatment ◽

Female Rats ◽

Accessory Glands ◽

Tissue Transplants ◽

Male Sex ◽

Coagulating Gland ◽

Metabolic Behaviour

A combined chemical and cytological study of the behaviour of transplants from certain accessory glands of reproduction in the rat was carried out. It was found that subcutaneous transplants of coagulating gland and seminal vesicle were capable of producing considerable amounts of fructose and citric acid in total anatomical separation from the male reproductive system. In transplants containing coagulating gland and seminal vesicle tissue both fructose and citric acid were formed. In those from coagulating gland alone only fructose was produced, but citric acid was absent. In this respect the metabolic behaviour of the grafts was identical with that of the intact organs. Following castration, coagulating gland transplants lost their ability to form fructose. This was fully restored by treatment with testosterone propionate. Upon cessation of the hormone treatment the process of fructose formation in the transplants was again brought to a standstill. Grafts of coagulating gland could be successfully grown in female rats and brought to a state of fructose secretion by subjecting the female hosts to injections of male sex hormone. The post-castrate retrogressive changes as well as the hormone-induced recovery symptoms were studied in the transplants parallel with similar changes in the intact glands in situ . The chemical findings were corroborated by the histological examination.

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