The halophyte species Solanum chilense Dun. maintains its reproduction despite sodium accumulation in its floral organs
ID Bigot, Servane (Author), ID Pongrac, Paula (Author), ID Šala, Martin (Author), ID Elteren, Johannes Teun van (Author), ID Martínez, Juan-Pablo (Author), ID Lutts, Stanley (Author), ID Quinet, Muriel (Author)

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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.

Keywords:salinity, inflorescences, ion localization
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Publication status:Published
Publication version:Version of Record
Number of pages:24 str.
Numbering:Vol. 11, iss. 5, art. 672
PID:20.500.12556/RUL-137245 This link opens in a new window
ISSN on article:2223-7747
DOI:10.3390/plants11050672 This link opens in a new window
COBISS.SI-ID:99274499 This link opens in a new window
Publication date in RUL:08.06.2022
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Shortened title:Plants
COBISS.SI-ID:523345433 This link opens in a new window


License:CC BY 4.0, Creative Commons Attribution 4.0 International
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:01.03.2022


Funder:Other - Other funder or multiple funders
Funding programme:Belgium, Fonds National de la Recherche Scientifique (FRS-FNRS)
Project number:CDR J.0136.19

Funder:Other - Other funder or multiple funders
Funding programme:FSR-UCLouvain

Funder:Other - Other funder or multiple funders
Funding programme:WBI/Chili
Project number:17

Funder:ARRS - Slovenian Research Agency
Project number:P1-0034
Name:Analitika in kemijska karakterizacija materialov ter procesov

Funder:ARRS - Slovenian Research Agency
Project number:P1-0212
Name:Biologija rastlin

Funder:ARRS - Slovenian Research Agency
Project number:N1-0090
Name:Slikanje molekularnih porazdelitev na nivoju celice

Funder:ARRS - Slovenian Research Agency
Project number:J7-9418
Name:Raziskave ionoma kulturnih rastlin za pridelavo varne in kakovostne hrane

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