CHANGES IN LIPID-COMPOSITION DURING THE LIFE-CYCLE OF DIPODASCOPSIS-TOTHII

Citation
Dj. Vanvuuren et al., CHANGES IN LIPID-COMPOSITION DURING THE LIFE-CYCLE OF DIPODASCOPSIS-TOTHII, Systematic and applied microbiology, 17(3), 1994, pp. 346-351
Citations number
14
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Microbiology,"Biothechnology & Applied Migrobiology
ISSN journal
0723-2020
Volume
17
Issue
3
Year of publication
1994
Pages
346 - 351
Database
ISI
SICI code
0723-2020(1994)17:3<346:CILDTL>2.0.ZU;2-G
Abstract
During the life cycle of Dipodascopsis tothii the ungerminated ascospo res contained substantially more lipid (10.9%, w/w) than the germinate d cells (7.3%, w/w). However, as the life cycle proceeded towards the differentiation phase and ascosporogenesis, the total lipid content de creased further to 6.4% (w/w) and then increased again to 7.4% (w/w). During the germination phase the neutral lipid fraction (mainly triacy lglycerols) decreased while the phospholipid fraction (mainly phosphat idylcholine and phosphatidylethanolamine) increased. The opposite tren d was found during the differentiation phase. The results on changes i n total lipid, neutral lipid and phospholipid during the life cycle of D. tothii agree with the results obtained by other authors for relate d and unrelated fungal taxa. During the differentiation phase substant ial amounts of free fatty acids, of which the biological role is still unclear, were produced.