A Podospora anserina longevity mutant with a temperature-sensitive phenotype for senescence.

A Podospora anserina longevity mutant was identified with a temperature-sensitive phenotype for senescence. This mutant, termed TS1, grew for over 3 m at 27 degrees C, but when shifted to 34 degrees C, it underwent senescence between 10 and 18 cm. A previously described senescence-associated plasmid...

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Prif Awduron: Turker, M S, Nelson, J G, Cummings, D J
Fformat: Erthygl
Iaith:en
Cyhoeddwyd: 1987
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Research Article
Mynediad Ar-lein:https://ncbi.nlm.nih.gov/pmc/articles/PMC367955/
https://ncbi.nlm.nih.gov/pubmed/3670311
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spelling pubmed-3679552004-03-19 A Podospora anserina longevity mutant with a temperature-sensitive phenotype for senescence. Turker, M S Nelson, J G Cummings, D J Mol Cell Biol Research Article A Podospora anserina longevity mutant was identified with a temperature-sensitive phenotype for senescence. This mutant, termed TS1, grew for over 3 m at 27 degrees C, but when shifted to 34 degrees C, it underwent senescence between 10 and 18 cm. A previously described senescence-associated plasmid, alpha senDNA, derived from the mitochondrial genome, was not detected in TS1 at 27 degrees C but was present in senescent cultures at 34 degrees C. A similar result was observed in progeny strains obtained by crossing the TS1 mutant with a wild-type strain. Other mitochondrial excision-amplification DNAs in addition to alpha senDNA were also observed in the senescent cultures. Most were derived from a specific region of the mitochondrial genome. These results provide evidence that alpha senDNA is involved in TS1 senescence and suggest that this plasmid may play a role in the formation of other mitochondrial excision-amplification plasmids. 1987-09 /pmc/articles/PMC367955/ /pubmed/3670311 Text en
institution US National Library of Medicine
collection PubMed Central
language en
format Article
topic Research Article
spellingShingle Research Article
Turker, M S
Nelson, J G
Cummings, D J
A Podospora anserina longevity mutant with a temperature-sensitive phenotype for senescence.
description A Podospora anserina longevity mutant was identified with a temperature-sensitive phenotype for senescence. This mutant, termed TS1, grew for over 3 m at 27 degrees C, but when shifted to 34 degrees C, it underwent senescence between 10 and 18 cm. A previously described senescence-associated plasmid, alpha senDNA, derived from the mitochondrial genome, was not detected in TS1 at 27 degrees C but was present in senescent cultures at 34 degrees C. A similar result was observed in progeny strains obtained by crossing the TS1 mutant with a wild-type strain. Other mitochondrial excision-amplification DNAs in addition to alpha senDNA were also observed in the senescent cultures. Most were derived from a specific region of the mitochondrial genome. These results provide evidence that alpha senDNA is involved in TS1 senescence and suggest that this plasmid may play a role in the formation of other mitochondrial excision-amplification plasmids.
author Turker, M S
Nelson, J G
Cummings, D J
author_facet Turker, M S
Nelson, J G
Cummings, D J
author_sort Turker, M S
title A Podospora anserina longevity mutant with a temperature-sensitive phenotype for senescence.
title_short A Podospora anserina longevity mutant with a temperature-sensitive phenotype for senescence.
title_full A Podospora anserina longevity mutant with a temperature-sensitive phenotype for senescence.
title_fullStr A Podospora anserina longevity mutant with a temperature-sensitive phenotype for senescence.
title_full_unstemmed A Podospora anserina longevity mutant with a temperature-sensitive phenotype for senescence.
title_sort podospora anserina longevity mutant with a temperature-sensitive phenotype for senescence.
publishDate 1987
url https://ncbi.nlm.nih.gov/pmc/articles/PMC367955/
https://ncbi.nlm.nih.gov/pubmed/3670311
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