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1.
Data Brief ; 21: 1521-1525, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30480063

RESUMO

The data presented in this article are related to the research article entitled "Expression of two indole-3-acetic acid (IAA)-amido synthetase (GH3) genes during fruit development of raspberry (Rubus idaeus Heritage)" (Bernales et al., In press). This data article describes the relation of all size variables between them and with the weight showing an increasing trend between length and weight and an inverse relation of fruit firmness and ethylene production during development. In addition, IAA treatment during auxin in-vitro assay showed no significant changes in firmness, a significant increase of ethylene and respiratory production.

2.
J Sci Food Agric ; 98(13): 4854-4865, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29573436

RESUMO

BACKGROUND: Pomegranate (Punica granatum) is a non-climacteric fruit susceptible to chilling injury (CI) at temperatures below 5 °C. To understand the influences of ethylene and modified atmosphere on CI physiological disorders of pomegranate, exogenous ethrel (0.5, 1 and 1.5 µg L-1 ) treatments, 1-methylcyclopropene (1-MCP) (1 µL L-1 ) exposure, packaging in a modified atmosphere (MAP) (XTend™ bags; StePac, São Paulo, Brazil), a MAP/1-MCP combination, and packaging in macro-perforated bags (MPB) were applied. The treated fruits were cold stored (2 ± 1 °C; 85% relative humidity) and sampled during 120 + 3 days at 20 °C. RESULTS: During cold storage, CI symptoms started at 20 days in MPB and at 60 days for all exogenous ethylene treatments, and were delayed to 120 days in MAP, 1-MCP and MAP/1-MCP treatments. MPB and ethylene treatments induced significant electrolyte leakage, oxidative damage, lipid peroxidation, ethylene and CO2 production, and 1-aminocyclopropane-1-carboxylic acid oxidase activity, without any change in total soluble solids, titratable acidity or skin and aril colours. Conversely, MAP by itself, or in combination with 1-MCP application, effectively delayed CI symptoms. CONCLUSION: During long-term cold storage of this non-climacteric fruit, ethrel application induced endogenous ethylene biosynthesis, accelerating the appearance of CI symptoms in contrast to the observations made for MAP and 1-MCP treatments. © 2018 Society of Chemical Industry.


Assuntos
Ciclopropanos/farmacologia , Conservação de Alimentos/métodos , Frutas/química , Lythraceae/efeitos dos fármacos , Compostos Organofosforados/farmacologia , Atmosfera/análise , Temperatura Baixa , Embalagem de Alimentos , Armazenamento de Alimentos , Frutas/efeitos dos fármacos , Lythraceae/química
3.
J Plant Physiol ; 179: 100-5, 2015 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-25847526

RESUMO

Red Raspberry (Rubus idaeus) is traditionally classified as non-climacteric, and the role of ethylene in fruit ripening is not clear. The available information indicates that the receptacle, a modified stem that supports the drupelets, is involved in ethylene production of ripe fruits. In this study, we report receptacle-related ethylene biosynthesis during the ripening of fruits of cv. Heritage. In addition, the expression pattern of ethylene biosynthesis transcripts was evaluated during the ripening process. The major transcript levels of 1-aminocyclopropane-1-carboxylic acid synthase (RiACS1) and 1-aminocyclopropane-1-carboxylic acid oxidase (RiACO1) were concomitant with ethylene production, increased total soluble solids (TSS) and decreased titratable acidity (TA) and fruit firmness. Moreover, ethylene biosynthesis and transcript levels of RiACS1 and RiACO1 were higher in the receptacle, sustaining the receptacle's role as a source of ethylene in regulating the ripening of raspberry.


Assuntos
Vias Biossintéticas/genética , Etilenos/biossíntese , Regulação da Expressão Gênica de Plantas , Genes de Plantas , Rubus/anatomia & histologia , Rubus/genética , Sequência de Aminoácidos , Respiração Celular/genética , Flores/genética , Frutas/genética , Dados de Sequência Molecular , Proteínas de Plantas/química , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Rubus/enzimologia , Rubus/crescimento & desenvolvimento , Alinhamento de Sequência
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