rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
4
|
pubmed:dateCreated |
2007-9-17
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pubmed:databankReference |
|
pubmed:abstractText |
Mortierella alpina is an oleaginous filamentous fungus whose vegetative mycelium is known to accumulate triglyceride oil containing large amounts of arachidonic acid (ARA 20:4, n - 6). We report that the spores of Mortierella alpina also contain a large proportion of ARA, comprising 50% of total fatty acid. Fatty acid desaturase genes were not expressed in dormant spores but were induced during germination, following a significant drop in the level of ARA (down from 50% of total fatty acid to 12%) prior to germ-tube emergence. We propose that ARA serves as a reserve supply of carbon and energy that is utilised during the early stages of spore germination in Mortierella alpina.
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pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
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pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Oct
|
pubmed:issn |
0302-8933
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
188
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
299-305
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:17492269-Arachidonic Acid,
pubmed-meshheading:17492269-Base Sequence,
pubmed-meshheading:17492269-DNA, Fungal,
pubmed-meshheading:17492269-Fatty Acid Desaturases,
pubmed-meshheading:17492269-Gene Expression Regulation, Fungal,
pubmed-meshheading:17492269-Molecular Sequence Data,
pubmed-meshheading:17492269-Mortierella,
pubmed-meshheading:17492269-RNA, Fungal,
pubmed-meshheading:17492269-RNA, Messenger,
pubmed-meshheading:17492269-Reverse Transcriptase Polymerase Chain Reaction,
pubmed-meshheading:17492269-Sequence Analysis, DNA,
pubmed-meshheading:17492269-Spores, Fungal
|
pubmed:year |
2007
|
pubmed:articleTitle |
Spore germination in Mortierella alpina is associated with a transient depletion of arachidonic acid and induction of fatty acid desaturase gene expression.
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pubmed:affiliation |
School of Biology, University of Nottingham, University Park, Nottingham, UK.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|