English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In mitochondrial DNA (mtDNA) heteroplasmy induced artificially in Drosophila melanogaster (Matsuura et al., 1989), foreign mtDNA derived from D. mauritiana was selectively transmitted at 25 degrees C but was lost at 19 degrees C (Niki et al., 1989; Matsuura et al., 1990, 1991). To investigate temperature-dependent factors in the selective transmission of mtDNA, the temperature-dependency of electron-transport activity of mitochondria from D. melanogaster in which endogenous mtDNA was completely replaced by the foreign mtDNA was compared with that of D. melanogaster and D. mauritiana. For NADH-oxidase activity, the optimum temperature of D. mauritiana mitochondria was 35 degrees C while for two types of mitochondria from D. melanogaster each possessing either endogenous or exogenous mtDNA, maximum activity was noted at 32 degrees C. This observation suggests that the temperature-dependency of mitochondrial electron-transport activity is mainly determined by a nuclear genome. NADH-cytochrome c reductase and cytochrome c oxidase activities were not significantly different among the three types of mitochondria. The temperature-dependency of mitochondrial function apparently is not involved in the temperature-dependent selective transmission of mtDNA in the heteroplasmic state.

Temperature-dependency of electron-transport activity in mitochondria with exogenous mitochondrial DNA in Drosophila.