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Article|22 Apr 2022|OPEN
The metabolic and proteomic repertoires of periderm tissue in skin of the reticulated Sikkim cucumber fruit
Gulab Chand Arya1 ,† , Yonghui Dong2 ,† , Uwe Heinig2,3 ,† , Nir Shahaf2 , Yana Kazachkova2 , Elinor Aviv-Sharon2 , Gal Nomberg1,4 , Ofir Marinov1,4 , Ekaterina Manasherova1 , Asaph Aharoni2 , Hagai Cohen,1 ,
1Department of Vegetable and Field Crops, Institute of Plant Sciences, Agricultural Research Organization (ARO), Volcani Center, Rishon Lezion 7505101, Israel
2Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot 7610001, Israel
3Department of Life Sciences Core Facilities, Weizmann Institute of Science, Rehovot 7610001, Israel
4Department of Plant Pathology and Microbiology, Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel
*Corresponding author. E-mail: hagaic@volcani.agri.gov.il
Gulab Chand Arya,Yonghui Dong and Uwe Heinig contributed equally to the study.

Horticulture Research 9,
Article number: uhac092 (2022)
doi: https://doi.org/10.1093/hr/uhac092
Views: 203

Received: 18 Feb 2022
Accepted: 05 Apr 2022
Published online: 22 Apr 2022

Abstract

Suberized and/or lignified (i.e. lignosuberized) periderm tissue appears often on surface of fleshy fruit skin by mechanical damage caused following environmental cues or developmental programs. The mechanisms underlying lignosuberization remain largely unknown to date. Here, we combined an assortment of microscopical techniques with an integrative multi-omics approach comprising proteomics, metabolomics and lipidomics to identify novel molecular components involved in fruit skin lignosuberization. We chose to investigate the corky Sikkim cucumber (Cucumis sativus var. sikkimensis) fruit. During development, the skin of this unique species undergoes massive cracking and is coated with a thick corky layer, making it an excellent model system for revealing fundamental cellular machineries involved in fruit skin lignosuberization. The large-scale data generated provides a significant source for the field of skin periderm tissue formation in fleshy fruit and suberin metabolism.