Abstract
We revealed differences in lipid and carbohydrate composition between cells of mucorous fungi during endogenous and exogenous dormancy. Endogenous dormancy (zygospores) is characterized by high contents of phosphatidylcholine (about 70% of the total phospholipids) and triacylglycerol (over 90% of the total neutral lipids). By contrast, exogenous dormancy (sporangiospores) is accompanied by elevated amounts of sterols, sterol esters, and free fatty acids, which account for over 70% of the total neutral lipids. We established for the first time significant differences in the phospholipid composition between sporangiospores obtained from stylosporangia and sporangioles. Based on the data obtained, we regard the retardation of life-sustaining activities as a biochemical adaptation based on the dormancy state. We also discuss the taxonomical position of Blakeslea trispora.
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Tereshina, V.M., Memorskaya, A.S., Kochkina, G.A. et al. Dormant Cells in the Developmental Cycle of Blakeslea trispora: Distinct Patterns of the Lipid and Carbohydrate Composition. Microbiology 71, 684–689 (2002). https://doi.org/10.1023/A:1021432007070
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DOI: https://doi.org/10.1023/A:1021432007070