PMID- 15649777
OWN - NLM
STAT- MEDLINE
DCOM- 20050804
LR  - 20050114
IS  - 1096-4959 (Print)
IS  - 1096-4959 (Linking)
VI  - 140
IP  - 2
DP  - 2005 Feb
TI  - Fatty acid compositions of Collembola: unusually high proportions of C20 
      polyunsaturated fatty acids in a terrestrial invertebrate.
PG  - 299-307
AB  - To examine the C(20) polyunsaturated fatty acid (PUFA) compositions of 
      Collembola, we raised five species of Collembola on yeast diets, and then 
      quantified body mass, neutral lipid fatty acid (NLFA) and phospholipid fatty acid 
      (PLFA) compositions. PLFA content was always less than 5% of dry weight, but NLFA 
      content varied from 5.9% to 29.6% of dry weight, depending upon species. Combined 
      C(20) PUFA proportions of up to 9.2% and 48% were observed in the NLFA and PLFA 
      fractions, respectively, resulting in total C(20) PUFA proportions of up to 19.4% 
      of the total fatty acid compositions of Collembola. C(20) PUFAs were also 
      detected in Collembola specimens from a deciduous woodland at proportions up to 
      29.7% of the total fatty acid composition. Terrestrial invertebrates generally 
      contain <4% and <22% C(20) PUFAs in PLFAs and NLFAs, respectively; therefore, 
      these results demonstrate that Collembola often possess the highest proportions 
      of C(20) PUFAs yet observed in terrestrial invertebrates. The biochemical reasons 
      for such high C(20) PUFA proportions, which were biosynthesised by the Collembola 
      since these components were absent from the yeast diets, remain unclear. The 
      distinctive fatty acid compositions of Collembola may be useful in soil food web 
      studies utilising fatty acids as biomarkers of trophic behaviour.
FAU - Chamberlain, Paul M
AU  - Chamberlain PM
AD  - Centre for Ecology and Hydrology, Lancaster Environment Centre, Library Avenue, 
      Bailrigg, Lancaster, LA1 4AP, UK. pmch@ceh.ac.uk
FAU - Black, Helaina I J
AU  - Black HI
LA  - eng
PT  - Journal Article
PL  - England
TA  - Comp Biochem Physiol B Biochem Mol Biol
JT  - Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology
JID - 9516061
RN  - 0 (Fatty Acids, Unsaturated)
SB  - IM
MH  - Animals
MH  - Diet
MH  - *Environment
MH  - Fatty Acids, Unsaturated/*analysis/*chemistry
MH  - Invertebrates/*chemistry/metabolism
EDAT- 2005/01/15 09:00
MHDA- 2005/08/05 09:00
CRDT- 2005/01/15 09:00
PHST- 2004/07/20 00:00 [received]
PHST- 2004/10/22 00:00 [revised]
PHST- 2004/10/26 00:00 [accepted]
PHST- 2005/01/15 09:00 [pubmed]
PHST- 2005/08/05 09:00 [medline]
PHST- 2005/01/15 09:00 [entrez]
AID - S1096-4959(04)00357-4 [pii]
AID - 10.1016/j.cbpc.2004.10.016 [doi]
PST - ppublish
SO  - Comp Biochem Physiol B Biochem Mol Biol. 2005 Feb;140(2):299-307. doi: 
      10.1016/j.cbpc.2004.10.016.