Ontology highlight
ABSTRACT:
SUBMITTER: Strazzer P
PROVIDER: S-EPMC6391481 | biostudies-literature | 2019 Feb
REPOSITORIES: biostudies-literature
Strazzer Pamela P Spelt Cornelis E CE Li Shuangjiang S Bliek Mattijs M Federici Claire T CT Roose Mikeal L ML Koes Ronald R Quattrocchio Francesca M FM
Nature communications 20190226 1
The sour taste of Citrus fruits is due to the extreme acidification of vacuoles in juice vesicle cells via a mechanism that remained elusive. Genetic analysis in petunia identified two vacuolar P-ATPases, PH1 and PH5, which determine flower color by hyperacidifying petal cell vacuoles. Here we show that Citrus homologs, CitPH1 and CitPH5, are expressed in sour lemon, orange, pummelo and rangpur lime fruits, while their expression is strongly reduced in sweet-tasting "acidless" varieties. Down-re ...[more]