Regulation Mechanism of Fruit Ripening and Quality in Horticultural Crops

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Physiology and Metabolism".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 5873

Special Issue Editors

South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
Interests: postharvest biology of horticultural crops; fruit ripening; transcriptional regulation; post-translational modification; epigenetics/epigenomics
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Guest Editor
South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
Interests: fruit ripening; transcriptional regulation; post-translational modification; redox signaling; epigenetics/epigenomics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Fleshy fruits represent an important food source for humans. Ripening undergoes drastic changes in color, texture, flavor, and nutrition, which has important impacts on the formation of edible fruit quality. Therefore, unraveling the regulatory mechanisms of fruit ripening is biologically interesting and economically important for developing strategies to improve fruit nutritional and sensory quality. In the past decade, rapid advances have been made in the mechanisms of fruit ripening and quality formation. Ripening is finely governed by a highly coordinated network encompassed by hormones, transcriptional regulators, epigenomic modifications, and other regulatory elements. However, there are still many aspects during this process that need to be urgently solved. Thus, the scope of this Special Issue is to cover the regulatory mechanism of fruit ripening and quality formation, particularly focusing on transcriptional regulation, post-translational modification, redox signaling, and epigenetics, not only to shed new light on the regulatory mechanism of fruit ripening and quality formation but also to contribute to developing strategies to improve fruit nutritional and sensory quality.

Prof. Dr. Xuewu Duan
Dr. Guoxiang Jiang
Guest Editors

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Keywords

  • fruit ripening
  • fruit quality
  • reactive oxygen species
  • transcriptional regulation
  • post-translational modification
  • redox signaling
  • epigenetics
  • postharvest technology

Published Papers (2 papers)

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Research

16 pages, 2766 KiB  
Article
Identification and Characterization of Long Non-Coding RNAs: Implicating Insights into Their Regulatory Role in Kiwifruit Ripening and Softening during Low-Temperature Storage
by Ruilian Lai, Xiaopei Wu, Xin Feng, Minxia Gao, Yu Long, Rujian Wu, Chunzhen Cheng and Yiting Chen
Plants 2023, 12(5), 1070; https://doi.org/10.3390/plants12051070 - 27 Feb 2023
Cited by 1 | Viewed by 1254
Abstract
Long non-coding RNAs (lncRNAs) are crucial players regulating many biological processes in plants. However, limited knowledge is available regarding their roles in kiwifruit ripening and softening. In this study, using lncRNA-seq technology, 591 differentially expressed (DE) lncRNAs (DELs) and 3107 DE genes (DEGs) [...] Read more.
Long non-coding RNAs (lncRNAs) are crucial players regulating many biological processes in plants. However, limited knowledge is available regarding their roles in kiwifruit ripening and softening. In this study, using lncRNA-seq technology, 591 differentially expressed (DE) lncRNAs (DELs) and 3107 DE genes (DEGs) were identified from kiwifruit stored at 4 °C for 1, 2, and 3 weeks in comparison with non-treated control fruits. Of note, 645 DEGs were predicted to be targets of DELs (DEGTLs), including some DE protein-coding genes (such as β-amylase and pectinesterase). DEGTL-based GO enrichment analysis revealed that these genes were significantly enriched in cell wall modification and pectinesterase activity in 1 W vs. CK and 3 W vs. CK, which might be closely related to the fruit softening during low-temperature storage. Moreover, KEGG enrichment analysis revealed that DEGTLs were significantly associated with starch and sucrose metabolism. Our study revealed that lncRNAs play critical regulatory roles in kiwifruit ripening and softening under low-temperature storage, mainly by mediating the expression of starch and sucrose metabolism and cell wall modification related genes. Full article
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16 pages, 1936 KiB  
Article
Role of Melatonin in Apple Fruit during Growth and Ripening: Possible Interaction with Ethylene
by Antía Verde, Jesús M. Míguez and Mercedes Gallardo
Plants 2022, 11(5), 688; https://doi.org/10.3390/plants11050688 - 02 Mar 2022
Cited by 13 | Viewed by 4036
Abstract
The role of melatonin during the growth and ripening of apple fruit was studied using local varieties. The evolution of the growth and ripening parameters, including fruit size and weight, firmness, color change, sugar content, and ethylene production, was different in the five [...] Read more.
The role of melatonin during the growth and ripening of apple fruit was studied using local varieties. The evolution of the growth and ripening parameters, including fruit size and weight, firmness, color change, sugar content, and ethylene production, was different in the five varieties studied, with yellow apples (Reineta and Golden) initiating the ripening process earlier than reddish ones (Teórica, Sanroqueña, and Caguleira). Changes in the melatonin and melatonin isomer 2 contents during growth and ripening were studied in Golden apples, as was the effect of the melatonin treatment (500 µM, day 124 post-anthesis) on the apple tree. Melatonin content varied greatly, with higher value in the skin than in the flesh. In the skin, melatonin increased at day 132 post-anthesis, when ethylene synthesis started. In the flesh, melatonin levels were high at the beginning of the growth phase and at the end of ripening. Melatonin isomer 2 was also higher once the ripening started and when ethylene began to increase. The melatonin treatment significantly advanced the ethylene production and increased the fruit size, weight, sugar content, and firmness. The data suggest that melatonin stimulates fruit ripening through the induction of ethylene synthesis, while melatonin treatments before ripening improve the final fruit quality. Full article
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