Waterlogging can harm cucumbers, but understanding how they cope at the molecular level could help improve their tolerance. This is revealed from a study done by Yangzhou University's research team.
Their study, published in Horticulture Research, meticulously details how the CsPrx73 gene orchestrates a robust defense mechanism, including the promotion of adventitious roots and the scavenging of reactive oxygen species (ROS).
The study explores how cucumbers can better tolerate waterlogging by examining two varieties: YZ026A, which is waterlogging-tolerant, and YZ106A, which is waterlogging-sensitive. YZ026A outperforms YZ106A in waterlogged conditions due to its enhanced antioxidant system. Researchers identified 2616 key genes, focusing particularly on one called CsPrx73 that aids in forming new roots and cleaning harmful molecules. Another gene, CsERF7-3, was found to activate CsPrx73. Overexpressing CsERF7-3 improves CsPrx73 activity and root formation under waterlogging, while silencing it reduces these abilities.
This CsERF7-3-CsPrx73 relationship is crucial for cucumber adaptation to waterlogging stress.