مورد إلكتروني
Comparison between the impacts of two different modes of salicylic acid application on tomato (Solanum lycopersicum) responses to salinity
| العنوان: | Comparison between the impacts of two different modes of salicylic acid application on tomato (Solanum lycopersicum) responses to salinity |
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| المصدر: | Plant Signalling & Behavior, Vol. 13, no. 5, p. e1469361 |
| بيانات النشر: | Landes Bioscience 2018 |
| تفاصيل مُضافة: | UCL - SST/ELI/ELIA - Agronomy Gharbi, Emna Lutts, Stanley Dailly, Hélène Quinet, Muriel |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | Exogenous application of salicylic acid may improve tolerance to salinity. However, the timing of its application may influence the plant response to salt toxicity. We investigated if exogenous salicylic acid application had similar protective effects when applied as a priming agent or concomitantly with NaCl. Tomato seedlings primed or not with 0.01 mM salicylic acid were further treated with 125 mM NaCl, 0.01 mM salicylic acid or combined treatments. Both priming and concomitant application of salicylic acid increased plant growth of salt-stressed plants but their positive impact was not additive. The endogenous salicylic acid concentration increased in the leaves at the end of the experiment after concomitant application but not in response to priming, suggesting that salicylic acid accumulated during priming was metabolized subsequently. Salicylic application either before or during salt exposure acts on the two main constraints induced by salinity, namely the ionic and the osmotic constraints. Regarding ion accumulation, priming increased Na+ and K+ accumulation in leaves of salt-treated plants while concomitant salicylic application had no impact on shoot Na+ and K+ accumulation. Regarding osmotic adjustment, both priming and concomitant salicylic acid decreased osmotic potential values in salt-treated plants. Carbon isotope discrimination showed that combination of both salicylic acid application methods were required to maintain a good water use efficiency in salt-treated plants. Our work demonstrates that both procedure of SA application have positive impact on salt resistance but that the underlying properties sustaining these adaptations differ between the two modes of salicylic acid application. |
| مصطلحات الفهرس: | cabon isotopic discrimination, exogenous application, NaCl, water status, plant growth, photosynthesis-related parameters, priming, salucylic acid, salt resistance, tomato, info:eu-repo/semantics/article |
| URL: | |
| الإتاحة: | Open access content. Open access content info:eu-repo/semantics/openAccess |
| ملاحظة: | English |
| أرقام أخرى: | UCDLC oai:dial.uclouvain.be:boreal:199841 boreal:199841 urn:ISSN:1559-2316 urn:EISSN:1559-2324 1130452221 |
| المصدر المساهم: | UNIVERSITE CATHOLIQUE DE LOUVAIN From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.on1130452221 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |