Studies on echinoderm phosphagens III. Changes in the content of creatine phosphate after stimulation of sperm motility

Yanagisawa, Tomio

doi:10.1016/0014-4827(67)90072-9

Cited by 13 publications

(3 citation statements)

References 17 publications

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“…We already reported (Mita and Yasumasu, 1983) that phospholipid and carbohydrate metabolism in Hemicentrotus sperm are activated at 20C and only glycolysis is carried out at 0C. Yanagisawa (1967) reported that Hemicentrotus sperm maintain a certain ATP level but decrease their phospholipid level after dilution at 14C. Upon fertilization, a dramatic change in metabolism occurs in both sperm (Fujiwara et al, 1983) and eggs (Yasumasu et al, 1973).…”

Section: Introductionmentioning

confidence: 91%

Effect of Temperature on Interaction Between Eggs and Spermatozoa of Sea Urchin

Mita¹,

Hino²,

Yasumasu³

1984

The Biological Bulletin

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Fertilization in the sea urchin, Anthocidaris crassispina, showed marked temperature dependence; high temperatures (15-30C) were required for fertilization. In contrast, fertilization in Hemicentrotus pulcherrimus occurred over a wide range of temperatures (0-30C). The mechanism of this temperature effect in Anthocidaris was investigated. The number of sperm bound to the egg surface and the rate of the acrosome reaction were markedly reduced by lower temperatures (0-10C). Furthermore, an abnormal elongation of the sperm head tip occurred with higher frequency at lower temperatures. In contrast, the egg activation with calcium ionophore A23187 was not prevented at 10C. The swimming activity measured by distance traveled was also relatively high at 0C, although the activity increased as the temperature rose. These results strongly suggest that temperature exerts a direct influence on fertilization in Anthocidaris by acting on the acrosome reaction. The increased fertilization rate at higher temperatures in Anthocidaris corresponds to the higher temperature observed during the breeding season of this species.

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Section: Introductionmentioning

confidence: 91%

Effect of Temperature on Interaction Between Eggs and Spermatozoa of Sea Urchin

Mita¹,

Hino²,

Yasumasu³

1984

The Biological Bulletin

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“…128) In fact, a temporary decrease in the content of ATP as well as that of phosphagen has been observed immediately after dilution. 129) The initial high respiration rate would be needed for recovering high-energy phosphate compounds by oxidative phosphorylation. The phosphocreatine shuttle is considered to supply ATP produced in mitochondria situated at the proximal end of the flagellum to its distal end.…”

Section: Initiation and Activation Of Movementmentioning

confidence: 99%

“…For example, sperm move to the chemoattractants released from an egg of the female genital tract. 129) From a series of studies using the ascidian Ciona intestinalis , it is known that sperm changes motility in response to the gradient of chemoattractants called SAAF. 126) The sperm movement directed toward the egg is achieved by transient changes of intracellular Ca 2+ concentration, followed by changes in the waveform asymmetry of sperm flagella.…”

Section: Modulation Of Movement As Responces To Stimulimentioning

confidence: 99%

Tubulin-dynein system in flagellar and ciliary movement

Mohri

Inaba

Ishijima

et al. 2012

Proc. Jpn. Acad., Ser. B

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Eukaryotic flagella and cilia have attracted the attention of many researchers over the last century, since they are highly arranged organelles and show sophisticated bending movements. Two important cytoskeletal and motor proteins, tubulin and dynein, were first found and described in flagella and cilia. Half a century has passed since the discovery of these two proteins, and much information has been accumulated on their molecular structures and their roles in the mechanism of microtubule sliding, as well as on the architecture, the mechanism of bending movement and the regulation and signal transduction in flagella and cilia. Historical background and the recent advance in this field are described.

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Energy transport and cell polarity: Relationship of phosphagen kinase activity to sperm function

Tombes

Shapiro

1989

J. Exp. Zool.

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The energy required for motility of sea urchin sperm is transported from the mitochondrion to the flagellum by a phosphocreatine shuttle involving diffusion of phosphocreatine (PCr) between isozymes of creatine kinase (CrK) localized at the two sites (Tombes and Shapiro, Cell, 41:325, '85; Tombes et al., Biophys. J., 52:75, '87). The present studies demonstrate that high sperm CrK (various echinoderms; sea squirt, bristle worm, salmon) or arginine kinase (molusc, barnacle, moth) activity is seen in several species with sperm of a primitive morphology (mitochondrion at the base of the head, relatively long flagellum). In contrast, CrK activity is 10-100-fold less abundant in sperm of other species (frog, mouse, rooster, rabbit, bull, and human) that either possess a modified morphology (mitochondria that extend along the flagellum) and/or utilize glycolytic metabolism. We interpret these findings as support for the use of phosphagen kinase-dependent energy transport in cells in which the production of adenosine triphosphate (ATP) by the mitochondrion is distant from its utilization, leading to a form of metabolic polarization. Two other cell types, frog photoreceptors and rabbit oviduct cells, whose morphology and function also suggest that they exhibit metabolic polarization, contain relatively high CrK activity. The presence of high phosphagen kinase activity in metabolically polarized gametes and somatic cells further substantiates the role of such enzymes in facilitating energy transport.

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Studies on echinoderm phosphagens III. Changes in the content of creatine phosphate after stimulation of sperm motility

Cited by 13 publications

References 17 publications

Effect of Temperature on Interaction Between Eggs and Spermatozoa of Sea Urchin

Effect of Temperature on Interaction Between Eggs and Spermatozoa of Sea Urchin

Tubulin-dynein system in flagellar and ciliary movement

Energy transport and cell polarity: Relationship of phosphagen kinase activity to sperm function

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