Transcriptome and metabolome analyses reveal the effects of brassinolide treatment on the ripening and flavor development of postharvest kiwifruit

IF 6.4 1区农林科学 Q1 AGRONOMY

Postharvest Biology and Technology Pub Date : 2024-12-27 DOI:10.1016/j.postharvbio.2024.113380

Yaming Yang, Ming Chen, Zhaoting Li, Qinggang Zhu, Xiaolin Ren, Yanrong Lv, Yuduan Ding

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引用次数: 0

Abstract

Brassinosteroids (BRs), a class of steroid phytohormones, are involved in regulating fruit ripening processes. However, the molecular mechanisms by which this hormone controls fruit ripening in kiwifruit remain unclear. Herein, 2,4-epibrassinolide (EBR) treatment delayed the decline in fruit firmness, thereby delaying the ripening of kiwifruit. Transcriptomic and metabolomic analyses revealed that the EBR treatment influenced the sugar metabolism pathways and the fruit flavor development. We found that the AdERF2 and AdBAM3.5 expressions were downregulated by EBR and that AdERF2 could activate the promoter activity of AdBAM3.5. AdERF2 was localized to the nucleus, and transient overexpression of AdERF2 promoted starch degradation. These results indicate that BRs inhibited the activation of AdBAM3.5 expression by AdERF2, slowing down starch degradation and promoting the accumulation of soluble sugars, which may influence ripe kiwifruit taste and overall flavor perception.

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来源期刊

Postharvest Biology and Technology 农林科学-农艺学

CiteScore

12.00

自引率

11.40%

发文量

309

审稿时长

38 days

期刊介绍： The journal is devoted exclusively to the publication of original papers, review articles and frontiers articles on biological and technological postharvest research. This includes the areas of postharvest storage, treatments and underpinning mechanisms, quality evaluation, packaging, handling and distribution of fresh horticultural crops including fruit, vegetables, flowers and nuts, but excluding grains, seeds and forages. Papers reporting novel insights from fundamental and interdisciplinary research will be particularly encouraged. These disciplines include systems biology, bioinformatics, entomology, plant physiology, plant pathology, (bio)chemistry, engineering, modelling, and technologies for nondestructive testing. Manuscripts on fresh food crops that will be further processed after postharvest storage, or on food processes beyond refrigeration, packaging and minimal processing will not be considered.