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Document Details
Document Type
:
Article In Journal
Document Title
:
Temporal and Depth Variation of Photo protective Mycosporine-Like Amino Acids in Soft Coral Species from the Eastern Red Sea Coast
الزمنية وعمق التغيير من الأحماض الأمينية الصور وقائية في أنواع المرجان الطري من ساحل شرق البحر الأحمر
Subject
:
Temporal and Depth Variation of Photo protective Mycosporine-Like Amino Acids in Soft Coral Species from the Eastern Red Sea Coast
Document Language
:
English
Abstract
:
Mycosporine-like amino acids (MAAs) were investigated in two soft cora] species collected during summer and winter of 2003 and 2004 at 5, ID, 15, and 20 m depth. Four different MM..s were detected. Palythine was the dominant compound in Sinularja polydac¬tyla and Sarcophyton trocheliophorum. The palythine concentration in S. trocheliophorum varied from 44 to 141 J.lg mg-I protein in summer compared to 33 to 129 J.lg mg-l protein in winter. The corresponding variation in S. polydactyla was 34 to 187 J.lg mg-I in summer and 24 to 127 J.lg mg-l protein in winter. Both the maxima and minima were higher in summer compared to winter and at all depths. Next to paly¬thine; porphyra-334 was detected in S. trocheliophorum. It was one eigth compared to palythine. The concentration of asterina-330 in S. Irocheliophorum was almost negligible. Mycosporine-glycine was not detected at any depth or season indicating that the organism has passed through the initial evolutionary process. PhotosyDthetically Active Radiation (PAR) was 67% more in summer compared to winter and hence explains the fact that the production of MAAs is more in summer compared to winter indicating that the photosynthetic zone favours the production ofMAAs.
ISSN
:
1012-8840
Journal Name
:
Marine Scienes Journal
Volume
:
17
Issue Number
:
1
Publishing Year
:
1427 AH
2006 AD
Article Type
:
Article
Added Date
:
Saturday, August 7, 2010
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
سلطان اللهيبي
AI-Lihaibi, Sultan
Researcher
Doctorate
Files
File Name
Type
Description
27599.pdf
pdf
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