Preservação da qualidade pós-colheita de kiwi 'bruno' pelo controle do etileno

Vieira, Marcelo José; Argenta, Luiz Carlos; Amarante, Cassandro Vidal Talamini do; Steffens, Cristiano André; Vieira, Amanda Maria Furtado Drehmer

doi:10.1590/s0100-29452010000200008

Cited by 7 publications

(2 citation statements)

References 9 publications

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“…3 Em razão das condições climáticas, o Estado do Rio Grande do Sul caracteriza-se por ser o principal produtor de kiwi do Brasil, concentrando metade da quantidade de frutos produzidos no País. 4 Os frutos de kiwi têm propriedades terapêuticas, elevado conteúdo de vitamina C e de elementos minerais quando comparados a outras frutas, como a maçã e o limão, podendo ser consumidos in natura, processados ou congelados, sendo que dessa última maneira podem ser conservados por longos períodos. 5 Os métodos convencionais para a propagação da espécie (estaquia e enxertia) foram complementados por técnicas de cultivo in vitro em diversos países.…”

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Concentrações de citocinina influenciam a multiplicação in vitro de kiwizeiro

Arruda

Buss

Nerbass

et al. 2019

evid.

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O cultivo in vitro de kiwizeiro em sistema dupla-fase aparece como alternativa para melhoria da taxa de multiplicação da espécie. Assim, o objetivo deste estudo foi avaliar o efeito de diferentes concentrações de 6-benzilaminopurina (BAP) na multiplicação in vitro de kiwizeiro em sistema dupla-fase. O experimento foi realizado no Laboratório de Micropropagação Vegetal pertencente à Universidade do Estado de Santa Catarina – Centro de Ciências Agroveterinárias (UDESC/CAV), em Lages. Os tratamentos consistiram na adição de três concentrações de BAP (0,0; 1,0 e 2,0 mg L-1) ao meio de cultura MS em sistema dupla-fase. As variáveis analisadas aos 30 dias de cultivo dos explantes in vitro foram: número de brotações, comprimento médio de brotações, número de folhas e comprimento médio de folhas. A análise de variância foi significativa para a regressão linear e foi possível observar um crescimento nas médias de todas as variáveis analisadas, à medida que se aumentaram as concentrações de BAP no meio de cultivo. Dessa forma, conclui-se que para a multiplicação in vitro de kiwizeiro em sistema dupla-fase a concentração de BAP a ser utilizada é 2 mg L-1.

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Concentrações de citocinina influenciam a multiplicação in vitro de kiwizeiro

Arruda

Buss

Nerbass

et al. 2019

evid.

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“…In some reports, new kiwifruit cultivars were treated with 1-MCP at room temperature for 16 h, and then this effect was studied during the cold storage at 2°C and during shelf life at room temperature (4)(5)(6). Hardy kiwifruits (Actinidia arguta) were treated with 20 μL/L 1-MCP for 16 h at 10°C and were subsequently stored at 1 ± 0.5°C (7).…”

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Impact of Cultivation Conditions, Ethylene Treatment, and Postharvest Storage on Selected Quality and Bioactivity Parameters of Kiwifruit “Hayward” Evaluated by Analytical and Chemometric Methods

Park

Polovka

Ham

et al. 2016

Journal of AOAC INTERNATIONAL

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Organic, semiorganic, and conventional "Hayward" kiwifruits, treated with ethylene for 24 h and stored during 10 days, were assessed by UV spectrometry, fluorometry, and chemometrical analysis for changes in selected characteristics of quality (firmness, dry matter and soluble solid contents, pH, and acidity) and bioactivity (concentration of polyphenols via Folin-Ciocalteu and p-hydroxybenzoic acid assays). All of the monitored qualitative parameters and characteristics related to bioactivity were affected either by cultivation practices or by ethylene treatment and storage. Results obtained, supported by statistical evaluation (Friedman two-way ANOVA) and chemometric analysis, clearly proved that the most significant impact on the majority of the evaluated parameters of quality and bioactivity of "Hayward" kiwifruit had the ethylene treatment followed by the cultivation practices and the postharvest storage. Total concentration of polyphenols expressed via p-hydroxybenzoic acid assay exhibited the most significant sensitivity to all three evaluated parameters, reaching a 16.5% increase for fresh organic compared to a conventional control sample. As a result of postharvest storage coupled with ethylene treatment, the difference increased to 26.3%. Three-dimensional fluorescence showed differences in the position of the main peaks and their fluorescence intensity for conventional, semiorganic, and organic kiwifruits in comparison with ethylene nontreated samples.

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Transcriptome analysis and postharvest behavior of the kiwifruit ‘Actinidia deliciosa’ reveal the role of ethylene-related phytohormones during fruit ripening

Salazar

Zapata

González

et al. 2021

Tree Genetics & Genomes

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Kiwifruit are climacteric fruit, so they must be harvested before they are fully ripe, 26 allowing for the extension of their shelf-life via cold storage. Therefore, an adequate 27 knowledge about how ethylene-induced fruit senescence is required to avoid significant 28 economic losses. The main goal of the present study was to investigate the kiwifruit 29 ripening process at the physiological and molecular levels by RNA-seq after 1-MCP 30 (ethylene inhibitor) and Ethrel® (ethylene stimulator) treatments. The results showed that 31 Ethrel® (ethephon) treatment induced more accelerated fruit ripening, leading to rapid 32 fruit senescence, meanwhile 1-MCP (1-Methylcyclopropene) caused a slowing flesh 33 softening, and thus a longer shelf-life period. The RNA-seq was carried out on the fruit 34 after 4 and 13 days, considering day 4 as the most determinant in terms of differentially 35 Manuscript Click here to access/download;Manuscript;Salazar et al. TGG_corrected version.docx Click here to view linked References expressed genes (DEGs). The sequencing achieved 70.7 % alignment with the 36 'Hongyang' genome, obtaining 18,036 DEGs. The protein-protein interaction (PPI) 37 network shows the interaction between different pathways in two main clusters: (1) 38 pentose and glucoronate interconversions, citrate cycle, glycolysis and gluconeogenesis 39 or starch and sucrose metabolism and (2) porphyrin and chlorophyll metabolism. The first 40 cluster is mainly interconnected by G6PD1 (pentose pathway); E1 ALPHA and ACLB-2 41 (citrate cycle); Achn209711 (pentose and glucoronate); LOS2 (glycolysis); HKL1 and 42 HXK1 (glycolysisstarch and sucrose); and PHS2 (starch and sucrose). In the second 43 cluster GUN5 through PORA is interacting with CRD1 and NYC1 which were 44 overexpressed by 1-MCP in the porphyrin and chlorophyll metabolism. In addition, genes 45 linked to PSBY and PSBP photosynthesis-linked proteins in photosystem 2 were 46 overexpressed by 1-MCP which is undoubtedly related to chlorophyll degradation and 47 fruit senescence. These results suggest that in kiwifruit the main pathways that are 48 regulated by ethylene-induced senescence comprise sugar catabolism and chlorophyll 49 degradation.

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Preservação da qualidade pós-colheita de kiwi 'bruno' pelo controle do etileno

Cited by 7 publications

References 9 publications

Concentrações de citocinina influenciam a multiplicação in vitro de kiwizeiro

Concentrações de citocinina influenciam a multiplicação in vitro de kiwizeiro

Impact of Cultivation Conditions, Ethylene Treatment, and Postharvest Storage on Selected Quality and Bioactivity Parameters of Kiwifruit “Hayward” Evaluated by Analytical and Chemometric Methods

Transcriptome analysis and postharvest behavior of the kiwifruit ‘Actinidia deliciosa’ reveal the role of ethylene-related phytohormones during fruit ripening

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