Dynamic controlled atmosphere (DCA): Does fluorescence reflect physiology in storage?

Wright, A. Harrison; DeLong, John M.; Gunawardena, Arunika H. L. A. N.; Prange, Robert K.

doi:10.1016/j.postharvbio.2011.09.015

Cited by 60 publications

(21 citation statements)

References 39 publications

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“…In addition, genes related to photosystem I and II are differentially expressed in woolly fruit. These findings may contribute to explain the changes in chlorophyll a fluorescence during cold storage [ 46 ]. Transcript accumulation of PSBY is modified before chilling injury (after 15 days).…”

Section: Discussionmentioning

confidence: 99%

Transcriptional regulatory networks controlling woolliness in peach in response to preharvest gibberellin application and cold storage

et al. 2015

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BackgroundPostharvest fruit conservation relies on low temperatures and manipulations of hormone metabolism to maintain sensory properties. Peaches are susceptible to chilling injuries, such as ‘woolliness’ that is caused by juice loss leading to a ‘wooly’ fruit texture. Application of gibberellic acid at the initial stages of pit hardening impairs woolliness incidence, however the mechanisms controlling the response remain unknown. We have employed genome wide transcriptional profiling to investigate the effects of gibberellic acid application and cold storage on harvested peaches.ResultsApproximately half of the investigated genes exhibited significant differential expression in response to the treatments. Cellular and developmental process gene ontologies were overrepresented among the differentially regulated genes, whereas sequences in cell death and immune response categories were underrepresented. Gene set enrichment demonstrated a predominant role of cold storage in repressing the transcription of genes associated to cell wall metabolism. In contrast, genes involved in hormone responses exhibited a more complex transcriptional response, indicating an extensive network of crosstalk between hormone signaling and low temperatures. Time course transcriptional analyses demonstrate the large contribution of gene expression regulation on the biochemical changes leading to woolliness in peach.ConclusionOverall, our results provide insights on the mechanisms controlling the complex phenotypes associated to postharvest textural changes in peach and suggest that hormone mediated reprogramming previous to pit hardening affects the onset of chilling injuries.Electronic supplementary materialThe online version of this article (doi:10.1186/s12870-015-0659-2) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

Transcriptional regulatory networks controlling woolliness in peach in response to preharvest gibberellin application and cold storage

et al. 2015

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“…Watkins (2008) showed that DCA was especially effective to reduce superficial scald development in 'Cortland' and 'Delicious' apples, but they did not mention flesh breakdown. LOL is inherently variable, like fruit mass, color, sugar or acid levels, even among apples from a given cultivar and tree or between the sunexposed and shaded regions of a single fruit (Wright et al, 2012). Therefore, the current DCA-CF recommendations suggest that O 2 partial pressure should be set at 0.2-0.3 kPa above LOL (Prange et al, 2007).…”

Section: Dca Conditions Temperaturementioning

confidence: 99%

“…Apples often have higher metabolic activity on the sun-exposed side than on the shaded side (Wright et al, 2012). Therefore, the chlorophyll fluorescence measured on the sun-exposed side of the fruit might result in a higher LOL DCA-CF (Prange et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Respiratory quotient: innovative method for monitoring ‘Royal Gala’ apple storage in a dynamic controlled atmosphere

Weber¹,

Brackmann

Both

et al. 2015

Sci. agric. (Piracicaba, Braz.)

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Apples (Malus domestica, Borkh.) which are not stored at low temperature or in a properly controlled atmosphere (CA) may have a high metabolic rate during the postharvest stage resulting in losses in quality. The aim of this study was to evaluate the quality of 'Royal Gala' apple fruit stored in accordance with a new method of dynamic controlled atmosphere (DCA).The respiratory quotient (RQ) was monitored at two temperatures which were then compared using a commercially available technology based on chlorophyll fluorescence DCA (DCA-CF) and static CA. Ethylene production and respiration rates were lower in apples stored in DCA than in CA, as a result of lower 1-aminocyclopropane-1-carboxylate oxidase activity, especially in apples stored in DCA-RQ2. Flesh firmness of apples stored in DCA did not differ from those stored in CA. Apples stored at 1 °C had less flesh breakdown occurrence and a high percentage of healthy fruit. 'Royal Gala' stored at DCA-RQ2 had less flesh breakdown than apples stored in CA; however, the apples stored in DCA-CF did not differ from those stored in DCA-RQ2 and CA. Apples stored at the highest RQ value (6 and 4), especially at 0.5 °C, had low O 2 injury occurrence after storage. However the increase in temperature to 1.0 °C, reduced the occurrence of this disorder. Therefore, storage in DCA-RQ2 at 1 °C or DCA-CF at 0.5 °C are the recommendations of preference for ensuring maintenance of quality in 'Royal Gala' apples after eight months of storage.

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“…As the static storage approach does not always provide optimal poststorage results, dynamic low-O 2 storage approaches have been developed where the O 2 conditions are adapted to the changing fruit physiology (Veltman et al, 2003; Wright et al, 2012; Bessemans et al, 2016).…”

Section: Postharvest Storage Of Apple Fruitmentioning

confidence: 99%

Regulation of the Central Carbon Metabolism in Apple Fruit Exposed to Postharvest Low-Oxygen Stress

et al. 2019

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After harvest, fruit remain metabolically active and continue to ripen. The main goal of postharvest storage is to slow down the metabolic activity of the detached fruit. In many cases, this is accomplished by storing fruit at low temperature in combination with low oxygen (O2) and high carbon dioxide (CO2) partial pressures. However, altering the normal atmospheric conditions is not without any risk and can induce low-O2 stress. This review focuses on the central carbon metabolism of apple fruit during postharvest storage, both under normal O2 conditions and under low-O2 stress conditions. While the current review is focused on apple fruit, most research on the central carbon metabolism, low-O2 stress, and O2 sensing has been done on a range of different model plants (e.g., Arabidopsis, potato, rice, and maize) using various plant organs (e.g., seedlings, tubers, roots, and leaves). This review pulls together this information from the various sources into a coherent overview to facilitate the research on the central carbon metabolism in apple fruit exposed to postharvest low-O2 stress.

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Dynamic controlled atmosphere (DCA): Does fluorescence reflect physiology in storage?

Cited by 60 publications

References 39 publications

Transcriptional regulatory networks controlling woolliness in peach in response to preharvest gibberellin application and cold storage

Transcriptional regulatory networks controlling woolliness in peach in response to preharvest gibberellin application and cold storage

Respiratory quotient: innovative method for monitoring ‘Royal Gala’ apple storage in a dynamic controlled atmosphere

Regulation of the Central Carbon Metabolism in Apple Fruit Exposed to Postharvest Low-Oxygen Stress

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