Preharvest application of abscisic acid promotes anthocyanins accumulation in pericarp of litchi fruit without adversely affecting postharvest quality |
| |
| Institution: | 1. National Agri-Food Biotechnology Institute (NABI), Mohali,160071, Punjab, India;2. Punjab Agricultural University (PAU), Krishi Vigyan Kendra, Langroya, SBS Nagar, 144516, Punjab, India;1. Laboratory of Fruit Quality Biology/State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Hangzhou 310058, China;2. Qingdao Key Lab of Modern Agriculture Quality and Safety Engineering, Qingdao Agriculture University, Qingdao 266109, China;3. Fenghua Institute of Honey Peach, Fenghua 315502, China;1. Institut National de la Recherche Agronomique (INRA) Institut Jean-Pierre Bourgin, ERL-CNRS 3559, Saclay Plant Sciences, RD10, 78026 Versailles, France;2. AgroParisTech, Institut Jean-Pierre Bourgin, ERL-CNRS 3559, Saclay Plant Sciences, RD10, 78026 Versailles, France;3. INRA and Centre National de la Recherche Scientifique (CNRS) SupAgro-M, Université Montpellier 2 (UM2), Biochimie et Physiologie Moléculaire des Plantes, 2 place Viala, 34060 Montpellier CEDEX 1, France;1. Department of Food Technology, University Miguel Hernández, Ctra. Beniel km 3.2, 03312, Orihuela, Alicante, Spain;2. Department of Applied Biology, University Miguel Hernández, Ctra. Beniel km 3.2, 03312, Orihuela, Alicante, Spain |
| |
| Abstract: | Pericarp colour of litchi fruit is an important quality attribute that determines its market value and consumer acceptance. Plant growth regulators (PGR) such as abscisic acid (ABA) and ethephon are known to play important roles in peel colour development during maturation and ripening of non-climacteric fruits (e.g. grape and litchi). Our aim was to investigate the effects of preharvest application of ABA, ethephon and their combination on pericarp colour and fruit quality of litchi (cv. Calcuttia) and also to assess the potential effects on postharvest performance of fruit. Exogenous application of ABA (150 or 300 mg L?1) at the colour-break stage significantly increased the concentration of total anthocyanins and cyanidin-3-O-rutinoside, the major anthocyanin contributing ～71–96% of the total anthocyanins, in litchi pericarp compared to ethephon (500 μL L?1). Among different anthocyanins quantified, the relative contribution of cyanidin-3,5-diglucoside to the total anthocyanins was significantly higher in all PGR-treated fruit compared to the control, but the concentration of cyanidin-3-O-glucoside was specifically enhanced by ABA. No significant effect on the concentrations of epicatechin, and quercetin-3-O-rutinoside was observed in response to PGR treatments. Ethephon (500 μL L?1) treatment did not significantly increase the anthocyanin levels in pericarp, but it caused more degradation of chlorophyll pigments than control. Aril quality with regard to firmness, soluble solids and acidity was not significantly affected by PGR treatments, except that ethephon-treated fruit showed significant softening and lower acidity. Postharvest changes in fruit quality attributes including pericarp browning during cold storage at 5 °C for 14 d were mainly related to the storage duration effect, rather than PGR treatment. In conclusion, ABA treatment (150 or 300 mg L?1) at the colour-break stage enhanced anthocyanins accumulation in litchi pericarp without adversely affecting postharvest quality and storage stability for 14 d. |
| |
| Keywords: | Anthocyanins Chlorophyll Cyanidin Epicatechin Ethephon Pericarp browning |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
