- Title
- Phloem transport of resources
- Creator
- Grof, Christopher P. L.; Byrt, Caitlin S.; Patrick, John W.
- Relation
- Sugarcane: Physiology, Biochemistry & Functional Biology p. 267-305
- Relation
- World in Agrculture Series
- Publisher Link
- http://dx.doi.org/10.1002/9781118771280.ch12
- Publisher
- John Wiley & Sons
- Resource Type
- book chapter
- Date
- 2014
- Description
- This chapter reviews the principles and concepts of resource transport in the phloem in general and then moves to describe the physiology of phloem translocation in sugarcane. The movement of resources through the phloem is interpreted through the Münch pressure flow hypothesis. The phloem transport rate is determined by magnitudes of pressure differences between the source and sink ends of the pathway and the phloem sap concentration of each transported nutrient. A description of the leaf structural framework in sugarcane is provided and the phloem pathways in sugarcane are dissected from loading of collection phloem in source leaves, transit through transport phloem, to release phloem where resources are unloaded into growth and storage sinks. Phloem conductivities in sugarcane, mechanisms of loading and unloading of solutes, and the environmental effects on phloem translocation are considered.
- Subject
- pholem translocation; pholem transport; sugarcane; Münch pressure flow hypothesis
- Identifier
- http://hdl.handle.net/1959.13/1066203
- Identifier
- uon:18045
- Identifier
- ISBN:9780813821214
- Language
- eng
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