20.500.12556/RUL-137245 The halophyte species Solanum chilense Dun. maintains its reproduction despite sodium accumulation in its floral organs Salinity is a growing global concern that affects the yield of crop species, including tomato (Solanum lycopersicum). Its wild relative Solanum chilense was reported to have halophyte properties. We compared salt resistance of both species during the reproductive phase, with a special focus on sodium localization in the flowers. Plants were exposed to NaCl from the seedling stage. Salinity decreased the number of inflorescences in both species but the number of flowers per inflorescence and sepal length only in S. lycopersicum. External salt supply decreased the stamen length in S. chilense, and it was associated with a decrease in pollen production and an increase in pollen viability. Although the fruit set was not affected by salinity, fruit weight and size decreased in S. lycopersicum. Concentrations and localization of Na, K, Mg, and Ca differed in reproductive structures of both species. Inflorescences and fruits of S. chilense accumulated more Na than S. lycopersicum. Sodium was mainly located in male floral organs of S. chilense but in non-reproductive floral organs in S. lycopersicum. The expression of Na transporter genes differed in flowers of both species. Overall, our results indicated that S. chilense was more salt-resistant than S. lycopersicum during the reproductive phase and that differences could be partly related to dissimilarities in element distribution and transport in flowers. salinity inflorescences ion localization true false true Angleški jezik Ni določen Članek v reviji 2022-06-08 09:31:42 2022-06-08 09:31:44 2022-09-15 04:14:50 0000-00-00 00:00:00 2022 0 0 24 str. iss. 5, art. 672 Vol. 11 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 581 2223-7747 10.3390/plants11050672 99274499 plants-11-00672-v3.pdf plants-11-00672-v3.pdf 1 D6FC981CD4823D66C4513463605DBA3F efbbdaa9ef9c02af32dc012fc04af3671934499870c45a0f0d6250f294b74f5f 38f4fcf1-e6fd-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=157132 https://www.mdpi.com/2223-7747/11/5/672 0 0f199a01-e6fd-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=157131 Biotehniška fakulteta 0 0 0