PbWRKY26 positively regulates malate accumulation in pear fruit by activating PbMDH3

PbWRKY26 positively regulates malate accumulation in pear fruit by activating PbMDH3

Malate is the main organic acid that affects fruit acidity and flavor in pear (Pyrus spp.). However, the regulatory mechanism of malic acid accumulation in pear remains unclear. We identified PbWRKY26 as a candidate gene using mRNA-seq, and quantification analysis verified the expression level. The...

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Veröffentlicht in:Journal of plant physiology 2023-09, Vol.288, p.154061-154061, Article 154061
Hauptverfasser: Yang, Meiyi, Song, Junxing, Zhang, Xu, Lu, Ruitao, Wang, Azheng, Zhai, Rui, Wang, Zhigang, Yang, Chengquan, Xu, Lingfei
Format: Artikel
Sprache:eng
Schlagworte:
Malic acid accumulation
MDH
Pear
PH3 homolog
WRKY transcription factor
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Zusammenfassung:Malate is the main organic acid that affects fruit acidity and flavor in pear (Pyrus spp.). However, the regulatory mechanism of malic acid accumulation in pear remains unclear. We identified PbWRKY26 as a candidate gene using mRNA-seq, and quantification analysis verified the expression level. The expression of PbWRKY26 was positively correlated with the malic acid content in two P. pyrifolia cultivars (‘Cuiguan’, ‘Hongsucui’) and two P. ussuriensis cultivars (‘Qiuxiang’, ‘Hanhong’), with respective correlation coefficients of 0.748*, 0.871**, 0.889**, and 0.910** (*, P 
ISSN:0176-1617
1618-1328
DOI:10.1016/j.jplph.2023.154061