Changes and postharvest regulation of activity and gene expression of enzymes related to cell wall degradation in ripening apple fruit

Jian-mei, Wei; Ma, Fengwang; Shi, Shouguo; Qi, Xin; Zhu, Xiaohong; Yuan, Junwei

doi:10.1016/j.postharvbio.2009.12.003

Cited by 245 publications

(186 citation statements)

References 40 publications

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“…In this experiment, flesh firmness of apples stored in DCA did not differ from those stored in CA; however, some flesh softening occurred in all treatments (6 to 13 N, which is the difference between the initial flesh firmness and that after the storage period) after eight months of storage (Table 3). Flesh softening in apples occurs through the activation of cell wall degrading enzymes, such as polygalacturonase, pectatelyase, pectin methylesterase, endoglucanase, β-xylosidase, and especially β-galactosidase, which are activated by ethylene (Wei et al, 2010;Ortiz, 2011). In addition to higher ethylene biosynthesis for apples stored at CA during the first four days at 20 °C, the entire ethylene production was low.…”

Section: Resultsmentioning

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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Section: Resultsmentioning

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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“…Fruits from these treatments presented high levels of flesh firmness, internal space, gas diffusion rate, titratable acidity, soluble solids and healthy fruits. Perhaps, the low IEC, ethylene production and respiration rate in fruits treated with AVG result in lower cell wall degrading enzyme activity, once these enzymes are started by ethylene (Nishiyama et al, 2007;Payasi et al, 2009;Wei et al, 2010), leading in fruits with high flesh firmness and low physiological disorders. The high quality of these fruits is due to the lower ethylene production, respiration rate, IEC and ICO 2 , since great part of these variables have an inverse correlation with quality, especially physiological disorders and gas diffusion rate (Brackmann et al, 2014).…”

mentioning

confidence: 99%

Effect of growth regulators application on the quality maintenance of 'Brookfield' apples

et al. 2015

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The main goal of the present study was to elucidate the effect of growth regulators at harvest and postharvest quality of 'Brookfield' apples stored under controlled atmosphere through a multivariate approach. Thus, an experiment with two steps (field and storage) was carried out. The treatments in field were applied with an output of 1,000 L ha -1 of water. The following treatments were tested: Control: only water application; AVG (aminoethoxyvinylglycine): 0.83 kg ha -1 of Retain  applied 30 days before harvest (BH); NAA (naphthalene acetic acid): 40g ha -1 of naphthalene acetic acid applied 7 days BH; Ethephon: 2.0 L ha -1 of Ethrel  applied 10 days BH; 1-MCP: 0.625µL L -1 of 1-MCP (1-methylcyclopropene): applied during postharvest (storage); LE (low ethylene): with the allocation of potassium permanganate sachets during postharvest. Fruits treated with AVG in the field showed an opposite response to the fruits with NAA. AVG application followed by another growth regulator (AVG + Ethephon and AVG + NAA) showed an advance in maturation, nearing these fruits to the control treatment, this effect is likely related to the higher ethylene production by these fruits compared to fruits with AVG alone. AVG, 1-MCP and LE kept a similar response on quality maintenance. Ethephon application prevented the negative effect of NAA at harvest, but after storage, the combined NAA + ethephon application increased the physiological disorders, reducing internal quality.

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“…A perda da fi rmeza de polpa ao longo do armazenamento pode ser consequência do amadurecimento normal devido à ação do etileno. No entanto, como observado na tabela 1, o 1-MCP é capaz de reduzir a produção de etileno, o que é confi rmado por um grande número de trabalhos (CORRENT et al, 2005;BRACKMANN et al, 2004BRACKMANN et al, , 2008LARRIGAUDIÈRE et al, 2008;WEI et al, 2010). Desse modo, a perda de fi rmeza dos frutos com o decorrer do tempo pode ser devido à maturação ou pela considerável perda de massa, conforme apresentado na tabela 2.…”

Section: Resultsunclassified

“…Desse modo, a perda de fi rmeza dos frutos com o decorrer do tempo pode ser devido à maturação ou pela considerável perda de massa, conforme apresentado na tabela 2. Ainda, segundo WEI et al (2010), diferentes cultivares apresentam características diferentes para o mecanismo de amaciamento e para a variável fi rmeza, podendo ser encontradas respostas distintas. No entanto, o uso de baixas temperaturas e do 1-MCP desempenham papel importante com relação a esse parâmetro.…”

Section: Resultsunclassified

1-MCP nos aspectos fisiológicos e na qualidade pós-colheita de maçãs Eva durante o armazenamento refrigerado

et al. 2013

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Changes and postharvest regulation of activity and gene expression of enzymes related to cell wall degradation in ripening apple fruit

Cited by 245 publications

References 40 publications

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

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

Effect of growth regulators application on the quality maintenance of 'Brookfield' apples

1-MCP nos aspectos fisiológicos e na qualidade pós-colheita de maçãs Eva durante o armazenamento refrigerado

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