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| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Rai, Umesh | - |
| dc.contributor.author | Nirmal, B K | - |
| dc.date.accessioned | 2013-11-12T09:34:57Z | - |
| dc.date.available | 2013-11-12T09:34:57Z | - |
| dc.date.issued | 2003-12 | - |
| dc.identifier.issn | 0975-1009 (Online); 0019-5189 (Print) | - |
| dc.identifier.uri | http://hdl.handle.net/123456789/23392 | - |
| dc.description | 1431-1435 | en_US |
| dc.description.abstract | A gradual increase in the concentration of Ca2+ from anterior to the posterior region was observed when mono- and divalent cations were estimated in different segments of the epididymis in wall lizard. Na+ and K+ levels increased from anterior to middle segment but declined significantly in the posterior segment. However, no significant difference in the levels of Mg2+ was observed in various segments. To study the influence of mono- and divalent cations on sperm motility in vitro, the spermatozoa from posterior region of the epididymis were incubated in medium with varying concentrations of Na+ K+, Ca2+ and Mg2+. Spermatozoa were non-motile when suspended in Na+-free medium. Addition of NaCI induced the acquisition of sperm motility in a concentration-dependent manner. Further, amiloride, a Na+-influx blocker, markedly reduced the Na+-induced forward progressive motility. Unlike Na+, the presence of K+ or Ca2+in the incubation medium reduced the motility of spennatozoa even at very low concentrations. The inhibitory effect of Ca2+ decreased when nifedipine, a Ca2+-influx blocker, was added to the medium. Mg2+ at high concentrations only was able to reduce the forward progressive motility. | en_US |
| dc.language.iso | en_US | en_US |
| dc.publisher | NISCAIR-CSIR, India | en_US |
| dc.rights |  CC Attribution-Noncommercial-No Derivative Works 2.5 India | en_US |
| dc.source | IJEB Vol.41(12) [December 2003] | en_US |
| dc.subject | Hemidactylus flaviviridis | en_US |
| dc.subject | Ion concentration | en_US |
| dc.subject | Ionic influence | en_US |
| dc.subject | Lizard | en_US |
| dc.subject | Sperm mobility | en_US |
| dc.title | Significance of regional difference in ion concentrations in lizard, Hemidactylus flaviviridis (Ruppell): Assessment of ionic influence on sperm motility in vitro | en_US |
| dc.type | Article | en_US |
| Appears in Collections: | IJEB Vol.41(12) [December 2003] | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJEB 41(12) 1431-1435.pdf | 1.05 MB | Adobe PDF | View/Open |
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