- Title
- Molecular regulation of sucrose catabolism and sugar transport for development, defence and phloem function
- Creator
- Li, Jun; Wu, Limin; Foster, Ryan; Ruan, Yong-Ling
- Relation
- Funding BodyARCGrant NumberDP110104931 and ARC DP120104148 http://purl.org/au-research/grants/arc/DP120104148
- Relation
- Journal of Integrative Plant Biology Vol. 59, Issue 5, p. 322-335
- Publisher Link
- http://dx.doi.org/10.1111/jipb.12539
- Publisher
- Wiley-Blackwell Publishing
- Resource Type
- journal article
- Date
- 2017
- Description
- Sucrose (Suc) is the major end product of photosynthesis in mesophyll cells of most vascular plants. It is loaded into phloem of mature leaves for long-distance translocation to non-photosynthetic organs where it is unloaded for diverse uses. Clearly, Suc transport and metabolism is central to plant growth and development and the functionality of the entire vascular system. Despite vast information in the literature about the physiological roles of individual sugar metabolic enzymes and transporters, there is a lack of systematic evaluation about their molecular regulation from transcriptional to post-translational levels. Knowledge on this topic is essential for understanding and improving plant development, optimizing resource distribution and increasing crop productivity. We therefore focused our analyses on molecular control of key players in Suc metabolism and transport, including: (i) the identification of promoter elements responsive to sugars and hormones or targeted by transcription factors and microRNAs degrading transcripts of target genes; and (ii) modulation of enzyme and transporter activities through protein-protein interactions and other post-translational modifications. We have highlighted major remaining questions and discussed opportunities to exploit current understanding to gain new insights into molecular control of carbon partitioning for improving plant performance.
- Subject
- sucrose catabolism; sugar; transport; development; defence; phloem function
- Identifier
- http://hdl.handle.net/1959.13/1354581
- Identifier
- uon:31302
- Identifier
- ISSN:1672-9072
- Rights
- This is the peer reviewed version of the following article: Li, Jun; Wu, Limin; Foster, Ryan; Ruan, Yong-Ling; “Molecular regulation of sucrose catabolism and sugar transport for development, defence and phloem function”, Journal of Integrative Plant Biology Vol. 59, Issue 5, p. 322-335 (2017), which has been published in final form at http://dx.doi.org/10.1111/jipb.12539. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
- Language
- eng
- Full Text
- Reviewed
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