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Unveiling Foliar-Applied Calcium Translocation in Tomato: Evidence from Leaf-to-Fruit Movement Using Strontium Tracer.
Journal of Experimental Botany · · Journal Article
Santos, Montanha + more
Abstract ↗AI summary
The abstract is read at the publisher; the summary is JClub's.
Foliar-applied strontium tracer is effectively translocated from tomato leaves to distal tissues, with sucrose and glycerol trends enhancing movement and Sr accumulating in seeds and fruit apices.
- Why it matters: Calcium deficiency can reduce fruit development even when soil Ca is optimal, because Ca delivery depends on transpiration and fruits transpire less during development.
- What they did: Tomato plants received foliar Sr and Ca-mobility regulators; Ca penetration and transport were assessed using X-ray fluorescence spectroscopy (XRF), testing sucrose, mannitol, glycerol, and potassium.
- The result: Sr primarily moved via the apoplast toward the leaf margin, and foliar Sr plus sucrose significantly increased Sr accumulation in seeds and the apical portion of tomato fruits.
The findingWhy it mattersWhat they didThe result
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- 4 cites