Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Department of Molecular Biology and Biochemistry, University of Malaga - Consejo Superior de Investigaciones Científicas, Málaga, Spain ; Max-Planck-Institut für Molekulare Pflanzenphysiologie Potsdam-Golm, Germany.
Australia-China Research Centre for Crop Improvement, The University of Newcastle Callaghan, NSW, Australia ; School of Environmental and Life Sciences, The University of Newcastle Callaghan, NSW, Australia.
Front Plant Sci. 2014 Oct 6;5:516. doi: 10.3389/fpls.2014.00516. eCollection 2014.
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 of carbon partitioning at the whole plant level is directly linked to the cellular pathways of assimilate transport and the metabolism and allocation of sugars, mainly sucrose and hexoses in source leaves, and sink organs such as roots and fruit. By using tomato plant as a model, this review documents and discusses our current understanding of source-sink interactions from molecular to physiological perspectives focusing on those that regulate the growth and development of both vegetative and reproductive organs. It furthermore discusses the impact that environmental conditions play in maintenance of this balance in an attempt to address the link between physiological and ecological aspects of growth.
植物生长和碳代谢密切相关，因为光合作用产生的蔗糖形式的碳水化合物为生物质的生产和维持提供了构建块和能量的主要来源。源和汇组织之间碳分配的调节很重要，因为它对植物的生长和发育都有巨大的影响。在整个植物水平上的碳分配调节直接与同化物运输的细胞途径以及糖的代谢和分配有关，主要是源叶中的蔗糖和己糖，以及根和果实等汇器官。本文以番茄植物为模型，从分子到生理的角度，记录和讨论了我们目前对源库相互作用的理解，重点是那些调节营养和生殖器官生长和发育的相互作用。此外，本文还讨论了环境条件在维持这种平衡中的作用，试图解决生长的生理和生态方面之间的联系。
