Fatty acid composition of lipids in various plant cell cultures

1973 ◽  
Vol 51 (3) ◽  
pp. 513-516 ◽  
Author(s):  
N. H. Tattrie ◽  
I. A. Veliky

The total fatty acids of cultured cells from 11 cell lines (nine species of plants) were determined. Linoleic acid was the most abundant fatty acid in most of the cultures (16.3%–60.9%, average = 39.4%). Palmitic acid varied from 19.1% to 54.8%, average = 28.4%. Stearic and oleic acids were usually less than 10%, with averages of 7.4% and 4.7% respectively. Linolenic acid varied from 3.5% to 19.8% in nine of the cell lines but morning glory (Ipomoea sp.) and soybean (Glycine max) contained 35.7% and 51.2% respectively. Arachidic acid was either absent or present in amounts of less than 5%.The total fatty acid patterns of various parts of Ipomoea sp. and Glycine max plants were compared with those of the cultured plant cells. The fatty acid composition of the leaves and of the cultured cells were quite similar in both plants. The lipids found in tissue culture cells are not necessarily comparable to those of the part of the intact plant from which the cell culture was established.

1973 ◽  
Vol 30 (2) ◽  
pp. 181-185 ◽  
Author(s):  
John W. Farrington ◽  
James G. Quinn ◽  
Wayne R. Davis

Samples of the infaunal invertebrates Nephtys incisa and Yoldia limatula from Narragansett Bay, Rhode Island, have been analyzed for their fatty acid distribution. Based on total fatty acids, Yoldia contains 9–16% of an acid tentatively identified as 22:2. The ratios of 18:1/18:0 and 18:1/20:1 fatty acids of Nephtys from a polluted station in the bay are lower than the corresponding ratios for animals from relatively clean areas.


2001 ◽  
Vol 47 (5) ◽  
pp. 382-391 ◽  
Author(s):  
Hongjun He ◽  
Roger Gordon ◽  
John A Gow

In the first part of this study, generation times relative to temperature, together with cardinal and conceptual temperatures, were determined for four strains of Xenorhabdus bacteria that represented three geographically distinct species. The data showed that the NF strain of Xenorhabdus bovienii, like the Umeå strain of the same species, is psychrotrophic, while Xenorhabdus sp. TX strain resembles Xenorhabdus nematophila All strain in being mesophilic. In the second part, the capacity of these bacteria to adapt to changes in temperature, shown by changes in fatty acid composition, was investigated. As temperature declined, the proportions of the two major unsaturated fatty acids, palmitoleic (16:1ω7) acid and oleic (18:1ω9) acid, increased significantly in all of the strains. The proportion of the prevalent saturated fatty acid, which was palmitic acid (16:0), decreased. In the All, NF, and Umeå strains, myristic acid (14:0), margaric acid (17:0), cyclopropane (17:0c), and arachidic acid (20:0) decreased with decreasing temperature. In the third part of the study, the synthesis of isozymes in response to changing temperature was investigated. For the seven enzymes studied, the numbers for which isozyme synthesis was temperature related were as follows: five for Umeå, four for All, three for NF, and two for TX. Where the study dealt with fatty acid composition and isozyme synthesis, the results show a broad capacity for physiological temperature adaptation among strains of different climatic origin.Key words: Xenorhabdus, temperature, psychrotroph, mesophile, fatty acid, isozyme.


Reproduction ◽  
2001 ◽  
pp. 315-322 ◽  
Author(s):  
JA Rooke ◽  
CC Shao ◽  
BK Speake

The aim of the present study was to characterize the effects of feeding tuna oil on the lipid and fatty acid composition of boar spermatozoa and to relate changes in composition to boar semen characteristics. Ten boars were paired by age and allocated to one of two diets (five boars per diet). The diets, which were offered for 6 weeks, consisted of a basal diet that was either unsupplemented or supplemented with 30 g tuna oil kg(-1) diet. Adding tuna oil to the diet increased the ether extract concentration of the diets fed from 65 to 92 g kg(-1) dry matter and supplied 10.5 g long chain polyunsaturated (n-3) fatty acids per 100 g total fatty acids. There were no changes in semen fatty acid composition after 3 weeks of feeding tuna oil. However, after 5 and 6 weeks, the proportions (g per 100 g total fatty acids) of 22:6(n-3) in sperm phospholipid fatty acids were increased from 34.5 to 42.9 g by feeding tuna oil and 22:5(n-6) decreased from 29.8 to 17.9 g. No changes were observed in other sperm lipids or seminal plasma phospholipids as a result of the diets fed. Feeding tuna oil increased the proportion of spermatozoa with progressive motility and with a normal acrosome score and reduced the proportion of spermatozoa with abnormal morphologies.


2000 ◽  
Vol 55 (7-8) ◽  
pp. 569-575 ◽  
Author(s):  
Debra L. Bemis ◽  
Vassilios Roussis ◽  
Constantinios Vagias ◽  
Robert S. Jacobs

Abstract Chloroplasts isolated from three populations of the tropical marine Chlorophyte Anadyomene stellata collected off the coast of Greece were analyzed for their fatty acid composition. Following the preparation of fatty acid methyl esters, GC-MS (El) was utilized to identify the fatty acids present in each population. Including isomers, the fatty acid profile of all three algal populations was comprised of 19 fatty acids (4 saturated, 6 monounsaturated, 9 polyunsaturated) with palmitic acid present in the highest amounts (25-27% of total fatty acids). Analysis of variance revealed significant differences amongst the three populations in the percent of total fatty acids for twelve of the fatty acids. High levels of C20 PUFAs, an atypical observation in Chlorophytes, were observed in all three populations comprising approximately 17% of total fatty acids. Furthermore a 14:2 PUFA , apparently rare in marine macrophytic Chlorophytes, was identified in significant quantities. Surprisingly, we did not find any of the conjugated tetraene containing fatty acids that we previously identified in the A. stellata populations studied from the Florida Keys.


2010 ◽  
Vol 1 (6) ◽  
pp. 584-594 ◽  
Author(s):  
Xiangyang Liu ◽  
Xinyi Tao ◽  
Aihua Zou ◽  
Shizhong Yang ◽  
Lixin Zhang ◽  
...  

1986 ◽  
Vol 32 (2) ◽  
pp. 179-181 ◽  
Author(s):  
Joseph L. Evans ◽  
Michael A. Moclock ◽  
Michael A. Gealt

The total fatty acids were characterized from conidia, exponential phase, and stationary phase Aspergillus nidulans. Several quantitative and qualitative variations were observed. Most notable was the approximately 15-fold increase in linolenate observed during the 1st day of incubation and its subsequent total disappearance by day 4.


1972 ◽  
Vol 29 (1) ◽  
pp. 113-115 ◽  
Author(s):  
R. E. Worthington ◽  
T. S. Boggess Jr. ◽  
E. K. Heaton

Representative samples of channel catfish (Ictalurus punctatus Rafinesque) were obtained from five processing plants and analyzed by gas–liquid chromatography for fatty acid composition of muscle tissues. Twenty-three fatty acids were measured. The saturated fatty acids comprised 26.5%, monoenes 48.1%, dienes 13.0%, trienes 3.1%, tetraenes 3.6%, pentaenes 1.3%, and hexaenes 1.9% of total fatty acids. Fatty acid composition varied significantly (P <.01) among fish obtained from the same plant, and in addition, significant variation associated with processing plant was observed for some fatty acids.


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