Influence of Md-ACS1 allelotype and harvest season within an apple germplasm collection on fruit softening during cold air storage |
| |
| Institution: | 1. The Horticulture and Food Research Institute of New Zealand Limited, Cnr Crosses and St George''s Roads, P.B. 1401, Havelock North, New Zealand;2. The Horticulture and Food Research Institute of New Zealand Limited, Tennent Drive, P.B. 11030, Palmerston North, New Zealand;1. Academic Group of Microbial Food Safety, DIPA, Chemistry Department, Autonomous University of Querétaro, Cerro de las Campanas s/n Col. las Campanas, 76010 Querétaro, Qro, Mexico;2. Food Technology Department, Lleida University, XaRTA-Postharvest, Agrotecnio Center, Av. Rovira Roure, 191, 25198 Lleida, Catalonia, Spain;3. IRTA, XaRTA-Postharvest, Rovira Roure 191, 25198 Lleida, Catalonia, Spain;1. Department of Pharmaceutical Biology, Medical University of Wroclaw, Borowska 211, 50-556 Wroclaw, Poland;2. Institute of General Food Chemistry, Technical University of Lodz, Stefanowskiego 4/10, 90-924 Lodz, Poland;3. Deartment of Chemistry, The Faculty of Food Science, Wroclaw University of Environmental and Life Sciences, C.K. Norwida 25/27, 50-375 Wroclaw, Poland;4. Department of Physical Chemistry, Medical University of Wroclaw, Borowska 211A, 50-556 Wroclaw, Poland;1. ILVO (Flanders Research Institute for Agricultural Fisheries and Food), Plant Sciences Unit, Caritasstraat 39, 9090 Melle, Belgium;2. ILVO, Plant Sciences Unit, Burg. Van Gansberghelaan 109, 9820 Merelbeke, Belgium;3. Aarhus University, Faculty of Science and Technology, Dept. of Agroecology, Research Centre Flakkebjerg, 4200 Slagelse, Denmark;1. Department of Entomology, The Pennsylvania State University, University Park, PA, United States;2. Department of Plant Pathology and Environmental Microbiology, The Pennsylvania State University, University Park, PA, United States;3. National Research Council of Italy, Turin, Italy;4. ZedX, Inc., Bellefonte, PA, United States |
| |
| Abstract: | Previous studies have demonstrated a relationship between Md-ACS1 allelotype and apple fruit softening at ambient temperatures. The present study was undertaken to further examine the influence of this allelotype (-1/1, -1/2 or -2/2) and its interaction with harvest season (early or late) on changes in internal ethylene concentrations (IEC) and fruit softening during cold air storage. This was carried out by describing natural differences found among old apple cultivars/species and modern commercial cultivars. For late maturing cultivars, Md-ACS1-1/1 was firmer at harvest than Md-ACS1-2/2 with the heterozygote intermediate. However harvest firmness showed no differences among for the early season Md-ACS1 allelotypes. The Md-ACS1-2/2 allelotype had a slower rate of postharvest IEC increase and flesh softening compared with Md-ACS1-1/1 and -1/2 allelotypes, and late maturing cultivars had a slower rate of fruit softening than early maturing cultivars, which was independent of postharvest IEC. All three late season allelotypes and early season Md-ACS1-2/2 were firmer after storage than early season Md-ACS1-1/1 and -1/2 allelotypes, reflecting differences in both harvest firmness and softening rates. While cultivar variation in final firmness could be explained partially through Md-ACS1-mediated postharvest ethylene increases and subsequent softening, much more variation was accounted for by their differences in harvest firmness. These results are discussed in relation to strategies for breeding cultivars with superior flesh textures that are maintained during storage. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
