Evidence for thiol-induced enhanced in situ translocation of 14C-sucrose from source to sink in Brassica juncea |
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| Affiliation: | 1. Nuclear Agriculture and Biotechnology Division (Fiply), Bhabha Atomic Research Centre, Mumbai 400085, India;2. Directorate of Research, Rajasthan Agriculture University, Bikaner, Rajasthan, India;1. Laboratory of Electrochemistry-Corrosion, Metallurgy and Inorganic Chemistry, Faculty of Chemistry, (USTHB), BP 32, 16111 Algiers, Algeria;2. Laboratory of Storage and Valorization of Renewable Energies, Faculty of Chemistry, (USTHB), BP 32, 16111 Algiers, Algeria;1. Plant Imaging Consortium, United States;2. Division of Biological Sciences, Interdisciplinary Plant Group, and Missouri Maize Center, University of Missouri, Columbia, MO 65211, United States;3. Department of Chemistry, University of Missouri, Columbia, MO 65211, United States;4. University of Missouri Research Reactor, University of Missouri, Columbia, MO 65211, United States;1. Department of Husbandry and Development of Animal Wealth, Faculty of Veterinary Medicine, Mansoura University, P.O. Box 35516, Gomhoria St., Mansoura, Egypt;2. Department of Hygiene and Preventive Medicine, Faculty of Veterinary Medicine, Kafr El-Sheikh University, Kafr El-Sheikh, Egypt;3. Department of Husbandry and Development of Animal Wealth, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt;1. Department of Food Science, Aarhus University, Kirstinebjergvej 10, 5792, Aarslev, Denmark;2. Department of Plant and Environmental Sciences, University of Copenhagen, Hoejbakkegaard Alle 9, DK-2630, Taastrup, Denmark;1. State Key Lab for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, China;2. College of Horticulture Science, Nanjing Agricultural University, China;3. Department of Food Science, Aarhus University, Denmark;4. Department of Plant and Environmental Sciences, University of Copenhagen, Denmark |
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| Abstract: | The translocation of 14C-sucrose to the different parts of the mustard (Brassica juncea) crop has been evaluated in the context of understanding the source to sink relationship in the thiol-induced enhanced crop yield. The foliar application of thiols like TU, TGA and DTT to the plant gave maximum sucrose phosphate synthase activity, which was found to have direct correlation with the movement of sucrose. The distribution pattern of 14C-sucrose follows the path from internode and node to pod via leaf. The translocation of 14C-sucrose was found to be a light dependent process. Among the nucleotides ATP and GTP, only ATP was able to promote the translocation and GTP was ineffective. In this unique in situ tracer experiment using 14C-sucrose, we could establish that thiols are able to enhance the translocation of sucrose from source to sink. |
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