Regulation of assimilate import into sink organs: update on molecular drivers of sink strength
نویسندگان
چکیده
منابع مشابه
Regulation of assimilate import into sink organs: update on molecular drivers of sink strength
Recent developments have altered our view of molecular mechanisms that determine sink strength, defined here as the capacity of non-photosynthetic structures to compete for import of photoassimilates. We review new findings from diverse systems, including stems, seeds, flowers, and fruits. An important advance has been the identification of new transporters and facilitators with major roles in ...
متن کاملMolecular determinants of sink strength.
The manipulation of sink to source relations has been subject to extensive plant breeding programs aiming to improve harvest index and thereby crop yield. The introduction of molecular and biochemical tools has enabled scientists to investigate the underlying principles. This has opened up the fascinating possibility of identifying molecular determinants of sink strength and to further increase...
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The concept that photosynthetic flux is influenced by the accumulation of photo-assimilate persisted for 100 years before receiving any strong experimental support. Precise analysis of the mechanisms of photosynthetic responses to sink activity required the development of a battery of appropriate molecular techniques and has benefited from contemporary interest in the effects of elevated CO2 on...
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متن کاملAn update on source-to-sink carbon partitioning in tomato
Plant growth and carbon metabolism are closely associated since carbohydrate in the form of sucrose generated by photosynthesis, provides the primary source of building blocks and energy for the production and maintenance of biomass. Regulation of carbon partitioning between source and sink tissues is important because it has a vast influence on both plant growth and development. The regulation...
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ژورنال
عنوان ژورنال: Frontiers in Plant Science
سال: 2013
ISSN: 1664-462X
DOI: 10.3389/fpls.2013.00177