Document Details

Document Type : Article In Journal 
Document Title :
GROWTH CHARACTERISTICS FATTY ACID COMPOSITION OF GROWTH CHARACTERISTICS FATTY ACID COMPOSITION OF APHANIZOMENON SP LABORATORY CULTURES GROWiNG AT 15°C AND 28°C
خصائص المكونات الدهنية في نوع من انواع السيانوبكتيريا الافانيزومينونم في بيئات معملة درجات حرارتها 15و28
 
Subject : GROWTH CHARACTERISTICS FATTY ACID COMPOSITION OF GROWTH CHARACTERISTICS FATTY ACID COMPOSITION OF APHANIZOMENON SP LABORATORY CULTURES GROWiNG AT 15°C AND 28°C 
Document Language : English 
Abstract : In this study the thermal adaptation of cynaobacteria, nature, and changes in membrane lipid fatty acids during the adaptation process were investigated. Aphanizomenon sp. Cultures were grown at thermally different incubation temperatures in the laboratory, i.e.28°C and 15°C, for 25 days, where growth characteristics — as determined by the level of chlorophyll a, caroteniods and dry weight — as well as fatty acid compositions were followed up during the growth period. Results of this study can be surnmarizd as ‘follow: I) The growth characteristics of Aphanizomenon sp. Grown at either temperature were very similar. At both temperatures a lag phase of about 168 h was observed after inoculation before the cultures enter their exponential phase. At both temperatures a doubling in time of 20 h was observed. These characteristics showed that the organism adapts its physiology to the different growth temperatures. 2) At both temperatures the main composition of unsaturated fatty acids was 16:0, 16:1, 16:3, 18:1, 18:2, and 18:3 after when the organism was grown at 15°C, also the organism responded to the low temperature by a 3.7 fold increase in the proportion of polyunsaturated fatty acids may play a role (at least partially) in the adaptation of Aphanizornenon sp. To low temperature. 
ISSN : 1110-6379 
Journal Name : The Egyptian Journal of Biomedical Sciences 
Volume : 19 
Issue Number : 1 
Publishing Year : 1426 AH
2005 AD 
Article Type : Article 
Added Date : Saturday, February 16, 2013 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
خالد عمر ابوالنجاabualnaja, khaled omerResearcherDoctoratekabualnaja@kau.edu.sa

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