Biochemical changes involved in stress response and ripening behaviour of γ-irradiated mango fruit

Frylinck, L.; Dubery, Ian A.; Schabort, J.C.

doi:10.1016/s0031-9422(00)84765-2

Cited by 39 publications

(23 citation statements)

References 27 publications

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“…Visual observation showed that irradiation fruits presented pulp browning when fruits were in degree 5 of maturity and softer texture, occurring in 1.0 kGy more frequently than in 0.4 kGy. Same effect was observed by Frylinck, Dubery, and Schabort (1987) that observed radiation treatment caused a stress condition in the mangoes which, depending on the dose, may lead to browning of the tissue or necrotic decay.…”

Section: Physico Chemical Analysissupporting

confidence: 68%

Study of physical–chemical and sensorial properties of irradiated Tommy Atkins mangoes (Mangifera indica L.) in an international consignment

Sabato¹,

Silva²,

Cruz³

et al. 2009

Food Control

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Section: Physico Chemical Analysissupporting

confidence: 68%

Study of physical–chemical and sensorial properties of irradiated Tommy Atkins mangoes (Mangifera indica L.) in an international consignment

Sabato¹,

Silva²,

Cruz³

et al. 2009

Food Control

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“…It caused 3.53% decrease and 12.69% increase over the control. These results are in agreement with those reported by, [28] on grains of triticale, [25] on mango plants using gamma irradiation and [27] on Brachypodium distachyon.…”

Section: Catalase (Eugfwt)supporting

confidence: 94%

“…The increases were 120.42% and 27.75% over the control in the two seasons. These results were confirmed by that obtained by [25] on mango plants, [26] on canola plants and [27] on Brachypodium distachyon.…”

Section: Abscisic Acid (Aba) (µG/g/fw)supporting

confidence: 89%

Studies on the Effect of Gamma, Laser Irradiation and Progesterone Treatments on Gerbera Leaves

Metwally¹

2015

EJB

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Abstract:The present study, we aimed to evaluate the effect of progesterone (prog.) concentrations (10, 20 and 30 ppm), gamma rays (γ) doses (100,150 and 250 rad), helium neon laser rays (He-Ne) exposure time (1.0, 5.5 and 11.5 min.) and argon laser rays (Ar) exposure time (1.0, 7.5 and 15.5 min.) and some interaction treatments between progesterone and irradiation treatments on biochemical constituents i.e. growth regulators and some enzymes activity in gerbera leaves. For this reason, at the greenhouse of the National Research Centre, Dokki, Giza, Egypt. Pot experiments were carried out two successive seasons of 2006 and 2007, and growth regulators (IAA, GA 3 , Cytok. and ABA), some enzymes activity in gerbera leaves (POD, CAT, Alk. phosph and Acid. phosph) and protein content were determined. The results showed that, low conc. of progesterone hormone, low exposure time of argon and He-Ne laser has a great effect on increasing POD activities and Cytokine content. Gamma rays at 150 rad increased ABA, POD, CAT and Alkaline and acid phosphatase, while 250 rad increased IAA and GAlike substances. The least value of alkaline phosphatase activity was recorded by progesterone treatments.

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“…Recently, enzymatic systems such as phenylalanine ammonia lyase and enzymes involved in the detoxification of oxidized species were shown to be activated in irradiated mango fruits (8). These activities, however, occur within 2 to 3 d. The rapid stimulation of ACC synthase activity observed in this work can be considered as one of the earlier and basic responses of the cell to radiation injury.…”

Section: Efe Radiosensitivitymentioning

confidence: 60%

Short-Term Effects of γ-Irradiation on 1-Aminocyclopropane-1-Carboxylic Acid Metabolism in Early Climacteric Cherry Tomatoes

Larrigaudière

Latché²,

Pech³

et al. 1990

Plant Physiol.

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ABSTRACT'y-Irradiation of early climacteric (breaker) cherry tomatoes (Lycopersicon pimpinellifollium L.) caused a sharp burst in ethylene production during the first hour. The extent of ethylene production was dose dependent and was maximum at about 3 kilograys. The content of 1-aminocyclopropane-1-carboxylic acid (ACC), followed the same evolution as ethylene production, while malonyl ACC increased steadily with time in irradiated fruits. The burst in ethylene production was accompanied by a sharp stimulation of ACC synthase activity which began 15 minutes after irradiation. The stimulation was completely prevented by cycloheximide, but not by actinomycin D or cordycepin. In contrast with irradiation, mechanical wounding continuously stimulated ethylene production over several hours. '-Irradiation and cordycepin applied to wounded tissues both caused the cessation of this continuous increase, but the initial burst was still persisting. These data suggest that a-irradiation, like wounding, stimulates the translation of preexisting mRNAs. It also reduces, at least temporarily, the subsequent transcription-dependent stimulation of ethylene production. '-Irradiation greatly inhibited the activity of ethylene-forming enzyme at doses higher than 1 kilogray. Such sensitivity is in accordance with a highly integrated membranebound enzyme.

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Biochemical changes involved in stress response and ripening behaviour of γ-irradiated mango fruit

Cited by 39 publications

References 27 publications

Study of physical–chemical and sensorial properties of irradiated Tommy Atkins mangoes (Mangifera indica L.) in an international consignment

Study of physical–chemical and sensorial properties of irradiated Tommy Atkins mangoes (Mangifera indica L.) in an international consignment

Studies on the Effect of Gamma, Laser Irradiation and Progesterone Treatments on Gerbera Leaves

Short-Term Effects of γ-Irradiation on 1-Aminocyclopropane-1-Carboxylic Acid Metabolism in Early Climacteric Cherry Tomatoes

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