Publication: N‐Acetyltransferase, hydroxyindole‐O‐methyltransferase and melatonin in the optic lobes of the giant tiger shrimp Penaeus monodon
| dc.contributor.author | Boonsirm Withyachumnarnkul | en_US |
| dc.contributor.author | Pattira Pongtippatee | en_US |
| dc.contributor.author | Supaporn Ajpru | en_US |
| dc.contributor.other | Mahidol University | en_US |
| dc.date.accessioned | 2018-07-04T06:52:20Z | |
| dc.date.available | 2018-07-04T06:52:20Z | |
| dc.date.issued | 1995-01-01 | en_US |
| dc.description.abstract | Abstract: The activities of the enzymes N‐acetyltransferase (NAT) and hydroxyin‐dole‐O‐methyltransferase (HIOMT) and the hormone melatonin were studied in the optic lobe of the subadult giant tiger shrimp Penaeus monodon. Compared with the level in other species, a relatively high level of NAT activity that was temperature‐ and pH‐dependent were observed. The NAT enzyme had a relatively high maximum velocity (Vmax, 100 pmol/hr/μg protein) and low Michaelis constant (Km, 22 μM), when tryptamine is used as substrate. In contrast to the high level of NAT activity, HIOMT activity and melatonin levels were low in the optic lobe of the giant tiger shrimp. Sex differences in the levels of NAT activity and melatonin, which are observed in a freshwater species Macrobrachium rosenber‐gii, were not noticeable in the saltwater species P. monodon, at least not when they were in their subadult stage. Copyright © 1995, Wiley Blackwell. All rights reserved | en_US |
| dc.identifier.citation | Journal of Pineal Research. Vol.18, No.4 (1995), 217-221 | en_US |
| dc.identifier.doi | 10.1111/j.1600-079X.1995.tb00162.x | en_US |
| dc.identifier.issn | 1600079X | en_US |
| dc.identifier.issn | 07423098 | en_US |
| dc.identifier.other | 2-s2.0-0029295356 | en_US |
| dc.identifier.uri | https://repository.li.mahidol.ac.th/handle/20.500.14594/17246 | |
| dc.rights | Mahidol University | en_US |
| dc.rights.holder | SCOPUS | en_US |
| dc.source.uri | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0029295356&origin=inward | en_US |
| dc.subject | Biochemistry, Genetics and Molecular Biology | en_US |
| dc.title | N‐Acetyltransferase, hydroxyindole‐O‐methyltransferase and melatonin in the optic lobes of the giant tiger shrimp Penaeus monodon | en_US |
| dc.type | Article | en_US |
| dspace.entity.type | Publication | |
| mu.datasource.scopus | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0029295356&origin=inward | en_US |