Oxidative Stress: Importance for Postharvest Quality

Hodges, D. Mark; Lester, Gene E.; Munro, Kathleen D.; Toivonen, Peter M.A.

doi:10.21273/hortsci.39.5.924

Cited by 256 publications

(190 citation statements)

References 82 publications

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“…However, pre-harvest exposure of fruit (and vegetables) to direct sunlight and the associated high tissue temperatures can also result in differences in sugar contents, tissue firmness and mineral content (Ferguson et al 1999;Woolf and Ferguson 2000) and can lead to changes in the contents of anti-oxidants (Davey et al 2000;Treutter 2001;Cisneros-Zevallos 2003;Hodges et al 2004). Therefore, the appearance of highly significant, major QTLs for the rate of flesh browning in 2005 is likely to be related to the seasonal growth conditions in that year.…”

Section: Colour (Fruit Side)-specific Qtlsmentioning

confidence: 99%

Identification and stability of QTLs for fruit quality traits in apple

Kenis

Keulemans

Davey

2008

Tree Genetics & Genomes

172

169

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Breeding for fruit quality traits is complex due to the polygenic (quantitative) nature of the genetic control of these traits. Therefore, to improve the speed and efficiency of genotype selection, attention in recent years has focused on the identification of quantitative trait loci (QTLs) and molecular markers associated with these QTLs. However, despite the huge potential of molecular markers in breeding programmes, their implementation in practice has been limited by the lack of information on the stability of QTLs across different environments and within different genetic backgrounds. Here, we present the results from a comprehensive analysis of the inheritance of fruit quality traits within a population derived from a cross between the apple cultivars 'Telamon' and 'Braeburn' over two successive seasons. A total of 74 different QTLs were identified for all the major fruit physiological traits including fruit height, diameter, weight and stiffness, flesh firmness, rate of flesh browning, acidity, the ºBrix content and harvest date. Seventeen of these QTLs were 'major' QTLs, accounting for over 20% of the observed population variance of the trait. However, only one third (26) of the identified QTLs were stable over both harvest years, and of these year-stable QTLs only one was a major QTL. A direct comparison with published QTL results obtained using other populations (King et al., Theor Appl Genet 102:1227-1235, 2001 Liebhard et al., Plant Mol Biol 52:511-526, 2003) is difficult because the linkage maps do not share a sufficient number of common markers and due to differences in the trait evaluation protocols. Nonetheless, our results suggest that for the six fruit quality traits which were measured in all populations, nine out of a total of 45 QTLs were common or stable across all population × environments combinations. These results are discussed in the framework of the development and application of molecular markers for fruit quality trait improvement.

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Section: Colour (Fruit Side)-specific Qtlsmentioning

confidence: 99%

Identification and stability of QTLs for fruit quality traits in apple

Kenis

Keulemans

Davey

2008

Tree Genetics & Genomes

172

169

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“…Plants have evolved an efficient antioxidant system to encounter the increased reactive oxygen species (ROS) levels in response to a variety of environmental stresses such as extreme temperatures, salinity, drought, ozone exposure, and ultra-violet irradiation (Hodges, Lester, Munro, & Toivonen, 2004). In response to stress conditions, ROS are produced and rapidly removed or detoxified by various cellular enzymatic and non-enzymatic systems.…”

Section: Introductionmentioning

confidence: 99%

“…The slow and weak response of the antioxidant protection system can cause accumulation of ROS to damaging levels leading to enhanced lipid peroxidation, loss of membrane integrity and oxidative injury to the tissue (Shewfelt & del Rosario, 2000;Wismer, 2003). Like other stresses, chilling conditions can alter the equilibrium between ROS production and removal, and can result in oxidatively induced CI in horticultural commodities (Hodges et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Dynamics of enzymatic and non-enzymatic antioxidants in Japanese plums during storage at safe and lethal temperatures

Singh

2013

LWT - Food Science and Technology

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“…Dysfunction of one or more cell membranes at chilling temperature is thought to be the primary event that ultimately leads to chilling injury (Nishida & Murata, 1996). Oxidative stress from excess reactive oxygen species (ROS) has been associated with the appearance of chilling damage in fruits (Hodges, Lester, Munro, & Toivonen, 2004). The toxicity of ROS is due to their reactions with numerous cell components causing a cascade of oxidative reactions and the consequent inactivation of enzymes, lipid peroxidation, protein degradation, and DNA damage (Scandalios, 1993).…”

Section: Introductionmentioning

confidence: 99%