Shenyang Agricultural University Revealed That Puwrky31 Responds to Sucrose Signals and Promotes Ethylene Biosynthesis in Pear Fruits
Published:12 Sep.2022    Source:Hortres

Recently, a research paper (Advance Access) entitled PuWRKY31 Affects Ethylene Production in Response to Sucrose Signal in Pear Fruit was published in Horticulture Research. Xinyue Li and Wei Guo from Shenyang Agricultural University contributed equally to this work.

In this study, two Ussurian pear (Pyrus ussuriensis) varieties, Nanguo (NG) pear and its bud sport variety (BNG) were used as materials to study the molecular mechanism of the transcription factor PuWRKY31 promoting ethylene production in response to sugar signals, and to reveal the molecular mechanism of sucrose promoting ethylene synthesis. The results showed that the sucrose accumulation of BNG fruit was higher than that of NG fruit during development and maturation, and the ethylene release peak value was earlier than that of NG fruit during maturation; It was also found that sucrose could promote ethylene biosynthesis in pear fruit treated with exogenous sucrose.
This study revealed that PuWRKY31 promoted the biosynthesis of ethylene in pear fruit in response to sucrose signals, which is conducive to further study the role of ethylene and sucrose signals in fruit ripening.