Journal
HORTICULTURE RESEARCH
Volume 8, Issue 1, Pages -Publisher
OXFORD UNIV PRESS INC
DOI: 10.1038/s41438-021-00702-z
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Funding
- National Key Research and Development Program of China [2018YFD1000200]
- National Natural Science Foundation of China [32122080, 31972375, 31902049]
- Shandong Province [ZR2020YQ25]
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This review summarizes recent advances in the vacuolar transport mechanism of organic acids in plants, introducing the complex regulatory networks involved in fruit acid formation.
In fleshy fruits, organic acids are the main source of fruit acidity and play an important role in regulating osmotic pressure, pH homeostasis, stress resistance, and fruit quality. The transport of organic acids from the cytosol to the vacuole and their storage are complex processes. A large number of transporters carry organic acids from the cytosol to the vacuole with the assistance of various proton pumps and enzymes. However, much remains to be explored regarding the vacuolar transport mechanism of organic acids as well as the substances involved and their association. In this review, recent advances in the vacuolar transport mechanism of organic acids in plants are summarized from the perspectives of transporters, channels, proton pumps, and upstream regulators to better understand the complex regulatory networks involved in fruit acid formation.
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