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http://hdl.handle.net/20.500.12038/257| Επίπεδο εγγραφής: | Έργο ολοκληρωμένο |
| Εξωτερική διεύθυνση διάθεσης πλήρους ψηφιακού τεκμηρίου με ανοικτή πρόσβαση (link): | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8871717/ |
| Χρονολογία: | 2022 |
| Θέμα: | Δασική Γενετική Επιγενετική Forest genetics Epigenetics |
| Δημιουργός: | Tsaballa, Aphrodite Sperdouli, Ilektra Avramidou, Evangelia Ganopoulos, Ioannis Koukounaras, Athanasios Ntinas, Georgios Αβραμίδου, Ευαγγελία |
| Τίτλος: | Epigenetic and Physiological Responses to Varying Root-Zone Temperatures in Greenhouse Rocket |
| Γλώσσα: | Αγγλικά |
| Λέξεις-Κλειδιά: | MSAP analysis; Hydroponic floating systems; Photochemical efficiency; Root-zone temperature sustainable production; Eruca sativa |
| Περίληψη: | Greenhouse production of baby leaf vegetables grown in hydroponic floating trays has become extremely popular in recent years. Rocket (Eruca sativa Mill.) can grow in temperatures varying between 10 and 20 °C; nevertheless, a root-zone temperature (RZT) range of 18–23 °C is considered optimal for high productivity, photosynthesis, and production of metabolites. Maintaining such temperatures in winter raises production costs and prevents sustainability. In this study, we tested the impact of lower RZT on plants’ status and recorded their responses while providing energy for heating using photovoltaic solar panels. We used three hydroponic tanks for cultivation; a non-heated (control) tank (12 °C) and two heated tanks; a solar panel-powered one (16 °C) and a public grid-powered one (22 °C). Methylation-sensitive amplified polymorphisms (MSAP) analysis of global methylation profiles and chlorophyll fluorescence analysis were employed to assess methylation and physiology levels of rocket leaves. We found that there is demethylation at 16 °C RZT in comparison to 22 °C RZT. Reduction of temperature at 12 °C did not reduce methylation levels further but rather increased them. Furthermore, at 16 °C, the effective quantum yield of photosystem II (PSII) photochemistry (ΦPSII) was significantly higher, with a higher PSII electron transport rate (ETR) and a significantly decreased non-regulated energy loss (ΦΝO), suggesting a better light energy use by rocket plants with higher photosynthetic performance. ΦPSII was significantly negatively correlated with DNA methylation levels. Our results show that at 16 °C RZT, where plants grow efficiently without being affected by the cold, DNA methylation and photosynthesis apparatus systems are altered. These findings corroborate previous results where hydroponic production of rocket at RZT of 16 °C is accompanied by sufficient yield showing that rocket can effectively grow in suboptimal yet sustainable root-zone temperatures. |
| Εξειδίκευση τύπου : | Άρθρο |
| Τίτλος περιέχουσας πηγής: | Genes |
| Άδεια χρήσης: | Αναφορά Παρόμοια Διανομή  |
| Διάθεση ψηφιακού τεκμηρίου: | Πλήρης |
| Αρίθμηση περιέχουσας πηγής: | 13 (2) |
| Σελίδες περιέχουσας πηγής: | 364 |
| Εμφανίζεται στις Ομάδες Τεκμηρίων: | 6.1.1. Πληθυσμιακή Γενετική 6.1.2. Βιοτεχνολογία |
Ψηφιακά Αρχεία
| Αρχείο | Μέγεθος | Μορφότυπος | |
|---|---|---|---|
| genes-13-00364.pdf | 10.18 MB | Adobe PDF | Δείτε/Ανοίξτε |