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Open AccessArticle

Transcriptional Regulation in Rocket Leaves as Affected by Salinity

Department of Agricultural and Environmental Sciences, Università degli Studi di Milano, via Celoria 2, 20133 Milano, Italy
Institute of Life Sciences, Scuola Superiore Sant’Anna, Pz. Martiri della Libertà 33, 56127 Pisa, Italy
Authors to whom correspondence should be addressed.
Plants 2020, 9(1), 20;
Received: 20 November 2019 / Revised: 17 December 2019 / Accepted: 20 December 2019 / Published: 23 December 2019
Salinity is one of the major abiotic stress causing yield losses and decreasing product quality. The beneficial effects of biostimulant products to enhance plant tolerance to abiotic stresses have been reported in several crops, but their mode of action is poorly understood. This work aims to better understand the effect of salt stress on wild rocket treated with a borage extract. The expression of some of the transcription factors (TFs) typically involved in salt stress response was studied within a 24 h period. Physiological parameters such as chlorophyll, chlorophyll a fluorescence, carotenoids, phenols, and anthocyanin were analyzed. Results obtained showed that salt stress induced a general increase in the expression levels of almost all TFs studied, whereas the treatment with the plant-base extract only induced an increase at specific time points. Moreover, the approach adopted allowed indagating the change in gene expression during time. Different pathways such as sugars metabolism, cuticular wax biosynthesis, and brassinosteroids signaling took part in plant responses. View Full-Text
Keywords: borage extract; Diplotaxis tenuifolia L.; salt stress; transcription factors borage extract; Diplotaxis tenuifolia L.; salt stress; transcription factors
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Franzoni, G.; Cocetta, G.; Trivellini, A.; Ferrante, A. Transcriptional Regulation in Rocket Leaves as Affected by Salinity. Plants 2020, 9, 20.

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