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. 2020 May 6;71(16):4778–4796. doi: 10.1093/jxb/eraa206

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© The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Experimental Biology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 10. — Proposed model for the distinct ethylene-dependent and low temperature-modulated peel degreening in lemon fruit. Uniquely ethylene-regulated transcription factors (TFs) are represented by ClERF114 while low temperature-specific TFs are represented by ClERF3. An additional set of TFs (represented by ClbHLH25) are shared between the ethylene and low-temperature regulatory pathways. Exposure to ethylene or low temperature induces changes in the levels of these unique and shared TFs, triggering the expression of various genes associated with chlorophyll degradation (green), carotenoid metabolism (orange), photosystem proteins (blues), and phytohormones (red).