Review Article

The Many Faces of Mitochondrial Autophagy: Making Sense of Contrasting Observations in Recent Research

Table 2

Contrasting observations in yeast mitophagy research.

ObservationSupporting studiesContradicting studies

Depolarisation triggers mitophagy[51, 52][55]
Fission precedes mitophagy[52][55]
Mitophagy by microautophagy (micromitophagy)[42]
Stress and regulation of mitophagy
 -TOR[41, 55]
 -MAPK[54]
 -Redox[53]
 -RTG[44][45, 48]*
 -General stress[55]
 -pH[63]
Proteins required for mitophagy
 -Uth1p[41, 42][45, 48]*
 -Aup1p[43][45, 48]*
 -Atg32p[45, 48]
 -Atg33p[48]
Requirement of nonrespiratory medium to induce mitophagy under N-starvation[38, 48][42, 52, 97]

*These studies reported no evidence of involvement, but did not directly contradict the observation.
In this study, limited mitophagy is demonstrated during lactate-supplemented N-starvation.