ethylene and fruit ripening

... production and action can be manipulated to control ripening • Ethylene treatment: – promotes faster and more uniform ripening by coordinating the onset of ripening – reduced time between harvest and ... respiratory rise and autocatalytic production of ethylene Processes associated with fruit ripening • Change in respiration rate – increased O2 consumption and CO2 production in climacteric fruits • ... 0.5 1.7 ± 1.0 20 ppm ethylene 0.8 ± 0.2 1.0 ± 0.3 0.8 ± 0.5 Undesirable Ethylene Effects • Undesired ripening and softening of fruits in storage • Accelerated senescence and loss of green color...

Ngày tải lên: 06/12/2016, 16:56

... processes and the fact that the parthenocarpic ovary was not developing exactly as would a normal one Ethylene plays a key role throughout fruit development and ripening in climacteric fruits and has ... development and fruit set During carpel development and normal fruit set we detected 20 modulated gibberellin genes (Additional file 6) When we compared normal and parthenocarpic fruit set we ... stimulus and one was a GH3-like protein involved in auxin and ethylene response (expression patterns in Table 5) We also investigated the function of ethylene in ovary development and fruit set...

Ngày tải lên: 12/08/2014, 03:20

... wells measured and recorded Procedure repeated for 3-day old, 5-day old, and 7-day old fruits ASSUMPTIONS: Ethylene source purely from fruit; not from surroundings Temperature and ventilation ... QUESTION: How does protease activity change as fruits ripen? BACKGROUND RESEARCH: Fruit Ripening Process Enzymes Proteases Fruit Ripening Process… Irreversible biochemical process between ... in ripening tissues HYPOTHESIS: Riper fruits have increased protease activity compared to less ripe/unripe fruits INITIAL MODEL: *Theoretical = black text in white boxes produces H2C=CH2 (ethylene) ...

Ngày tải lên: 06/12/2016, 18:06

... modification (PG, LeEXP1, TBG4 and LeMAN4) and system-2 ethylene biosynthesis (LeACS2 and LeACS4) in vivo and in vitro This suggests that RIN controls fruit softening and ethylene production by the ... onset of ripening by acting upstream of both ethyleneand non -ethylene- mediated ripening control The rin locus has been isolated and found to encode two MADS-box transcription factors, RIN and MC ... within pre -ripening fruits [7-9] Recently, Yokotani et al [9] demonstrated that ethylene production during ripening (system 2) consists of both autocatalytic and ethylene- independent systems and that...

Ngày tải lên: 11/08/2014, 11:21

... in leaves (3,44%) and in dried fruit rind (1.42%); The content of feavy 25 metals in leaves and in fruit rind are acceptable, in accordance with International and Vietnamese standards for foodstuffs ... metal content in leaves and fruit rinds of G oblongifolia shows that the quantity of heavy metal was suitable for international and national food and foodstuff hygiene standard 3.1.4 Research on ... spectra of standard HCCa salt and created HCCa salt are displayed in figures 3.22a, 3.22b The signal of 1H-NMR spectrum of methylene proton (Ha-5, 5’ and Hb-5, 5’) appears at 2.95 and 3.02 Pic...

Ngày tải lên: 07/05/2015, 21:00

Ngày tải lên: 28/08/2016, 07:57

... Papaya: đu đủ Milkfruit: vú sữa Durian: sầu riêng Vegetable: rau, củ Tomato: cà chua Spring onion: hành Lettuce: rau...

Ngày tải lên: 20/10/2016, 14:53

... A PINEAPPLE AN ORANGE A GRAPEFRUIT BANANAS A PEAR A RASPBERRY CHERRIES A PLUM A STRAWBERRY AN APPLE A peach A WATER MELON GRAPES A PINEAPPLE AN ORANGE A GRAPEFRUIT A RASPBERRY A PLUM A peach ... APPLE A PINEAPPLE AN ORANGE A GRAPEFRUIT A RASPBERRY A PLUM A peach A WATER MELON GRAPES BANANAS A PEAR A STRAWBERRY CHERRIES AN APPLE A PINEAPPLE AN ORANGE A GRAPEFRUIT A RASPBERRY A PLUM A peach ... APPLE A PINEAPPLE AN ORANGE A GRAPEFRUIT A RASPBERRY A PLUM A peach A WATER MELON GRAPES BANANAS A PEAR A STRAWBERRY CHERRIES AN APPLE A PINEAPPLE AN ORANGE A GRAPEFRUIT A RASPBERRY A PLUM A peach...

Ngày tải lên: 04/12/2016, 11:39

... fleshy fruit: drupe • _ type – outer part of fruit wall is soft and fleshy, inner part is hard and stony • For example: Simple fleshy fruit: pepo • – also a fleshy fruit with ... Simple dry fruit: capsule • Simple dry fruits are dry (not fleshy) at maturity Simple dry fruits that open at maturity include: capsules and legumes • Capsule – fruit is dry at maturity and splits ... the descent to land: maple, ash fruit C _ Dispersal • Fruits and/ or seeds use flotation devices to travel by water (in rivers, oceans, etc.) • Fruit may have air spaces and corky floats:...

Ngày tải lên: 06/12/2016, 16:57

... can affect fruit appearance, peel thickness, fruit firmness and physiological fruit damage Bagging fruits with P-WB or PP-WB, as the best treatments, could improve the fruit color and effectively ... on fruit set and fruit characteristics………………………………………………………114 5.4 Effects of bagging on fruit characteristics and physical fruit protection………………………………………………………… 115 5.5 Overall conclusions and ... Columbia and Israel (Nerd and Mizrahi, 1998) It has aoblong fruit, yellow peel with tubercles and spines, white flesh (Weiss et al., 1994; Dag and Mizrahi, 2005) Despite a desired flavor and sweet fruit, ...

Ngày tải lên: 24/11/2017, 09:52

... cascade has been shown to be involved in ethylene signaling and/ or ethylene biosynthetic pathways by targeting at least ACS2 and ACS6 (Liu and 76 Zhang, 2004; Hahn and Harter, 2009; Yoo et al., 2009; ... reduce ethylene- induced stress effects under Ni and Zn treatment (Sisler and Serek, 1997; Khan and Khan, 2014) Using NBD, which was expected to inhibit ethylene action by blocking receptors, Khan and ... RESISTANT1 (AtAUX1) and PINFORMED2 (AtPIN2), yet the ethylene synthesis inhibitors Co and AVG, and the ethylene perception inhibitor silver, abolished this Al-induced expression of AtAUX1 and AtPIN2 In...

Ngày tải lên: 12/12/2017, 06:27

... [14-16], senescence and abscission of floral organs [3,17-19] and ripening of fruits [20] In pea, ethylene regulates both petal and unfertilised whole pistil senescence [6,21] Ethylene production ... positive regulator of ethylene response [26] and acts downstream of CTR1 The EIN3 and EIL1 components are transcription factors that act downstream of EIN2 and can activate ethylene responses This ... testing pistil responsiveness to GA in ethylene- insensitive mutants ein2-5 and ein3-1, and in the ethylene constitutive response mutant ctr1-1 (Figure 2) Ethylene- insensitive mutants showed an...

Ngày tải lên: 11/08/2014, 11:20

... persica) fruit ripening: aminoethoxyvinylglycine (AVG) and exogenous polyamines affect ethylene emission and flesh firmness Physiol Plant 2002;114:472–81 Brummell DA Cell wall disassembly in ripening fruit ... in fruits of RNAi-ACS lines over WT, suggesting that alterations in ethylene levels in RNAi fruits did not affect the expression of this gene (Fig 3C) Ethylene suppression in RNAi-ACS fruits Fruits ... RNAi-ACS60 and RNAi-ACS81, releasing only 4–5% when compared with controls (WT and UR) Fruits of other RNAi-ACS lines showed 10–70% of ethylene evolution to that of control fruits This difference in ethylene...

Ngày tải lên: 17/10/2016, 18:28

Ngày tải lên: 21/09/2012, 17:17

... Dragon fruit  30-35 days after flower opening  Full color development  Size Dragon fruit is nonclimacteric It has no ability to ripen after harvesting Time of harvesting is very critical Fruit ... quality  Deteriorate faster  Lower yield (commodity grows bigger considerably at the end of fruit maturation Fruit harvested beyond optimum maturity  Over ripe  Cracking  Not fit for storage ...

Ngày tải lên: 03/04/2013, 20:55

... University of Queensland, Brisbane 5.1 Introduction 5.2 Biotechnological control of fruit ripening and post-harvest diseases 5.3 Biotechnological control of vegetable ripening and postharvest diseases ... to fruit crops has been described, for example, in Dandekar (1992) and is discussed in more detail in Chapter of this book, and reviews of fruit crop transformation are reported by Singh and ... length and in leaf area (Kaneyoshi and Kobayashi 1999), and in active gibberellin synthesis The association of more rol genes modifies morphology and biotic and abiotic stress resistance Kiwi fruit...

Ngày tải lên: 22/07/2013, 22:56

Ngày tải lên: 25/10/2013, 18:20

... Food and Drug Administration (FDA) has issued a guidance document to minimize microbial food safety hazards in fresh and minimally processed fruits and vegetables and mandated a Hazard Analysis and ... harvesting, postharvest handling, washing, and cooling and storage PREVENTIVE MEASURES IN THE ORCHARD Contamination of fruits with feces of animals such as deer,8 seagulls,9 and cattle and other ruminants10 ... The design and implementation of HACCP and application of alternative processes provide the current strategy for microbial control and ensuring shelf life and safety of fruit juice and beverages...

Ngày tải lên: 25/10/2013, 21:20

... reviews the microbiology of fruit juice and beverages in the contexts of spoilage and safety of fruit juice and beverage production MICROBIAL SPOILAGE OF FRUIT AND FRUIT JUICE AND BEVERAGES BACTERIA ... imported and domestic fruits and vegetables” and “to provide further assurance that fruits and vegetables consumed by Americans meet the highest health and safety standards,” the FDA and the U.S ... have and implement the GMP requirements and Sanitation Standard Operating Procedures (SSOPs) Flow Diagram Including Critical Control Points Fruit Source and Quality Fruit Handling and Storage Fruit...

Ngày tải lên: 25/10/2013, 21:20