Effect of Sprayable 1-MCP, AVG, and NAA on Ethylene Biosynthesis, Preharvest Fruit Drop, Fruit Maturity, and Quality of ‘Delicious’ Apples
Rongcai Yuan,Jianguo Li +1 more
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TLDR
Effects of naphthaleneacetic acid, aminoethoxyvinylglycine, and sprayable 1-methylcyclopropene alone or in combination on fruit ethylene production, preharvest fruit drop, fruit quality, and fruit maturation were examined in 'Delicious' apples.Abstract:
Effects of naphthaleneacetic acid (NAA), aminoethoxyvinylglycine (AVG), and sprayable 1-methylcyclopropene (1-MCP) alone or in combination on fruit ethylene production, preharvest fruit drop, fruit quality, and fruit maturation were examined in 'Delicious' apples (Malus ·domestica Borkh.). 1-MCP and AVG + NAA, when applied 15 days before anticipated harvest (DBAH) for untreated control trees, more effectively delayed preharvest fruit drop than AVG or NAA used alone. However, there was no significant difference in ethylene production between fruit treated with 1-MCP or AVG + NAA and those treated by AVG. Two applications of NAA increased fruit ethylene pro- duction and fruit softening, whereas AVG inhibited NAA-enhanced fruit ethylene production and fruit softening. There was no significant difference in fruit ethylene pro- duction, fruit firmness, and fruit drop control between one and two applications of 1-MCP. The concentrations of 1-MCP did not affect the efficacy of 1-MCP when applied 15 DBAH, but high concentration of 1-MCP more effectively delayed preharvest fruit drop than low concentration of 1-MCP when applied 7 DBAH. Both AVG and 1-MCP suppressed expression of 1-aminocyclopropane-1-carboxylate (ACC) synthase gene MdACS1, ACC oxidase gene MdACO1, and polygalacturonase gene MdPG1 in fruit. Ex- pression ofACS5A andMdACO1 but notMdACS1 in fruit abscission zones was decreased by AVG and 1-MCP. 1-MCP more effectively suppressed expression of MdPG2 in fruit abscission zones than AVG alone.read more
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Journal ArticleDOI
Preharvest 1-Methylcyclopropene Treatment Reduces Soft Scald in 'Honeycrisp' Apples during Storage
TL;DR: Overall, the most important benefit of preharvest 1-MCP treatments on 'Honeycrisp' apples was the reduction in soft scald development, due to the high potential for substantial fruit losses from this disorder.
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Rosa hybrida RhERF1 and RhERF4 mediate ethylene- and auxin-regulated petal abscission by influencing pectin degradation.
Yuerong Gao,Yang Liu,Yue Liang,Jingyun Lu,Chuyan Jiang,Zhangjun Fei,Zhangjun Fei,Cai-Zhong Jiang,Cai-Zhong Jiang,Chao Ma,Junping Gao +10 more
TL;DR: It is concluded that during petal abscission, RhERF1 and Rh ERF4 integrate and coordinate ethylene and auxin signals to modulate pectin metabolism, in part by regulating the expression of RhBGLA1.
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Differential Suppression of Ethylene Biosynthesis and Receptor Genes in ‘Golden Delicious’ Apple by Preharvest and Postharvest 1-MCP Treatments
TL;DR: In this paper, a sprayable formulation of 1-methylcyclopropene (1-MCP) has been developed for pre-harvest use on horticultural products, whereas SmartFresh™ is a widely used 1-mCP treatment for products after harvest.
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A review of apple preharvest fruit drop and practices for horticultural management
TL;DR: A review of recent progress in understanding preharvest fruit drop of apples is examined, horticultural practices that may alleviate prehar Harvest fruit drop are discussed, and suggestions for future research are provided.
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Optimization of the production conditions of the lipase produced by Bacillus cereus from rice flour through Plackett-Burman Design (PBD) and response surface methodology (RSM).
TL;DR: It can be concluded that the isolated B. cereus from rice flour is a proper source of lipase, and the optimal enzyme production conditions were found to be the optimal conditions of the enzyme production process.
References
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Journal ArticleDOI
1-Methylcyclopropene: a review
TL;DR: In this article, a review of the use of 1-methylcyclopropene (1-MCP) as an inhibitor of ethylene action is presented, which is a tool that can help scientists make major advances in understanding the role of the chemical in plants.
Journal ArticleDOI
A modified hot borate method significantly enhances the yield of high-quality RNA from cotton (Gossypium hirsutum L.).
C.Y. Wan,T.A. Wilkins +1 more
TL;DR: The unsurpassed qualitative and quantitative recovery of total RNA from cotton by hot borate buffer at alkaline pH, supplemented with PVP-40, deoxycholate, and/or NP-40 had also proven satisfactory for other recalcitrant plant species as well as for especially difficult tissue types.
Journal ArticleDOI
Ethylene biosynthesis and action in tomato: a model for climacteric fruit ripening
TL;DR: A number of ethylene-regulated ripening-related genes are discussed, including those involved in ethylene synthesis, fruit texture, and aroma volatile production, as well as experiments designed to elucidate the ethylene signalling pathway from receptor through intermediate components similar to those found in Arabidopsis.
Journal ArticleDOI
Ethylene and abscission
TL;DR: A substantial body of literature supports the involvement of ethylene in abscission of leaves, flowers and flower parts, and fruit, and endogenous ethylene production increases before abscissions, while in others a change in ethylene sensitivity can be demonstrated.
Journal ArticleDOI
Effects of NAA, AVG, and 1-MCP on Ethylene Biosynthesis, Preharvest Fruit Drop, Fruit Maturity, and Quality of ‘Golden Supreme’ and ‘Golden Delicious’ Apples
Rongcai Yuan,David H. Carbaugh +1 more
TL;DR: In 'Golden Supreme' and 'Golden Delicious' apples, the combination of two applications of AVG and one application of NAA synergistically inhibited fruit ethylene production and delayed fruit drop and ripening, whereas NAA increased fruit ripening as determined by fruit firmness and starch.
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