Document Type
Article
Publication Date
1979
Publication Source
Botanical Gazette
Abstract
Within source leaves, partition of assimilated carbon and export are regulated to both leaf and plant ontogeny and to environmental conditions. System goals, adaptive responses, control mechanisms, and information flow are developed from the viewpoint that a well-adapted plant is an integrated system. Regulation of partitioning and export involves both feedforward control and feedback homeostasis. Export is controlled by regulation of metabolism which supplies assimilated material to be translocated, by control of efflux into the free space of material destined for export, and by regulation of phloem loading. Control of export by the latter two processes depends on responsive metabolic processes that can supply sucrose and other transport molecules upon demand. An integrated model incorporating these features posits that control of export by mechanisms located in the source leaves is an important means of regulating translocation.
Inclusive pages
241-248
ISBN/ISSN
0006-8071
Document Version
Published Version
Copyright
This is a copy of an article published in Botanical Gazette © 1979 copyright The University of Chicago.
Publisher
University of Chicago Press
Volume
140
Peer Reviewed
yes
Issue
3
Keywords
Univ Chicago Press, Article
eCommons Citation
Geiger, Donald R., "Control of Partitioning and Export of Carbon in Leaves of Higher-Plants" (1979). Biology Faculty Publications. 31.
https://ecommons.udayton.edu/bio_fac_pub/31
