In order to learn the internal conditions for the production of the various phenoloxidases produced by the Aseomycete Podospora anserina the wild strain has been grown under controlled conditions in a fermenter for a period of 34 days. Samples were withdrawn at regular intervals and assayed for myce
Genes inhibiting senescence in the ascomycete Podospora anserina
β Scribed by Esser, Karl ;Keller, Wilhelm
- Publisher
- Springer
- Year
- 1976
- Tongue
- English
- Weight
- 289 KB
- Volume
- 144
- Category
- Article
- ISSN
- 0026-8925
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β¦ Synopsis
Senescence occurs in all wild strains of Podospora anserina after continued growth. This syndrome can be inhibited by a synergistic interaction of two linked genes, incoloris and vivax. Whereas the wild strain starts to become senescent after 26 d and the mutants incoloris and vivax after 42 and 66 d respectively, the double mutant shows no signs of aging after culture for more than one year.
π SIMILAR VOLUMES
With the aim of establishing whether a relationship existed between longevity and senescent determinants, three kinds of experiments have been carried out. First, the study of heteroplasmons obtained by mixing together ground mycelia of different longevities, led to observe that the resulting heter
The existence of plasmid like DNA was demonstrated in senescent mycelia of Podospora anserina (strain s) by biophysical and electronmicroscopic methods. According to their contour length of about 1.4 and 2.7 micron respectively the molecular weight for the monomer is in the range of 3.10(6).