ArticleBMC plant biology2022
Comparative physiological and transcriptomic analysis reveal MdWRKY75 associated with sucrose accumulation in postharvest 'Honeycrisp' apples with bitter pit.
Article in BMC plant biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 20 citations in OpenAlex.
- WRKY transcription factors in horticultural crops: regulating quality traits and fruit stress responses.Planta · 2026Review
- The multidimensional regulation roles and mechanisms of calcium in fruit quality.Journal of integrative plant biology · 2026Review
- Research progress on sucrose accumulation characteristics and their molecular regulatory networks in the fruits of fruit trees.Frontiers in plant science · 2026Review
- Nitrogen reduces calcium availability by promoting oxalate biosynthesis in apple leaves.Horticulture research · 2024Article
- Transcriptome and Metabolome Analyses Reveal Sugar and Acid Accumulation during Apricot Fruit Development.International journal of molecular sciences · 2023Article
- Abscisic acid and regulation of the sugar transporter gene MdSWEET9b promote apple sugar accumulation.Plant physiology · 2023Article
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Authors and funding
10 authors at 3 institutions in 1 country.
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Abstract
backgroundCalcium (Ca) deficiency can cause apple bitter pit, reduce the quality and shelf life. WRKY transcription factors play essential role in plant response to multiple disorders. However, the underlying mechanisms causing bitter pit in apple fruit due to Ca deficiency during storage is extremely limited.
resultsIn the present study, the nutritional metabolites and reactive oxygen species (ROS) were compared in Ca-deficient and healthy apple fruit (CK) during storage. Results showed that Ca-deficient apples sustained significantly higher production of ROS, PPO activity, flavonoids, total phenol, total soluble solids (TSS), and sucrose contents, but the contents of Ca, H
conclusionsCalcium deficiency could decrease antioxidant capacity, accelerate nutritional metabolism and up-regulate the expression of WRKYs in apple with bitter pit. Overexpression of MdWRKY75 significantly increased sucrose accumulation and the expression of MdSWEET1. These findings further strengthened knowledge of the basic molecular mechanisms in calcium deficiency apple flesh and contributed to improving the nutritional quality of apple fruit.
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