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022 _a0176-1617
040 _aMSU
_bEnglish
_cMSU
_erda
050 0 0 _aQK711.2 JOU
100 1 _aRosalie, Rémy
_eauthor
245 1 0 _aAntioxidant and enzymatic responses to oxidative stress induced by pre-harvest water supply reduction and ripening on mango (Mangifera indica L. cv. ‘Cogshall’) in relation to carotenoid content
_ccreated by Rémy Rosalie, Jacques Joas, Christelle Deytieux-Belleau, Emmanuelle Vulcain, Bertrand Payet, Laurent Dufossé, Mathieu Léchaudel
264 1 _aAmsterdam:
_bElsevier GmbH,
_c2015.
336 _2rdacontent
_atext
_btxt
337 _2rdamedia
_aunmediated
_bn
338 _2rdacarrier
_avolume
_bnc
440 _aJournal of plant physiology
_vVolume 184
520 3 _aThe effects of a reduction in water supply during fruit development and postharvest fruit ripening on the oxidative status and the antioxidant defense system were studied in the mango fruit (Mangifera indica L.) cv. Cogshall. Changes in non-enzymatic (ascorbate) and enzymatic (SOD, CAT, APX, MDHAR, DHAR and GR) antioxidants, as well as oxidative parameters (H2O2 and MDA) and major carotenoids, were measured in unripe and ripe fruits from well-irrigated and non-irrigated trees. Under non-limiting water supply conditions, ripening induced oxidation as a result of the production of ROS and decreased ascorbate content. Antioxidant enzymatic systems were activated to protect fruit tissues and to regenerate the ascorbate pool. The carotenoid pool, mainly represented by β-carotene and esterified violaxanthine isomers, accumulated naturally during mango ripening. The suppression of irrigation decreased fruit size and induced accumulation of ABA and of its storage form, ABA-GE, in fruit pulp from the earliest harvest. It also increased oxidation, which was observable by the high levels of ascorbate measured at the early stages at harvest, and by the delay in the time it took to reach the pseudo constant carotene-to-xanthophyll ratio in ripe fruits. Nevertheless, differences between the irrigation treatments on the antioxidant system in ripe fruits were not significant, mainly because of the drastic changes in this system during ripening.
650 _aMango
_vRipening
_xIrrigation
700 _aJoas, Jacques
_eco-author
700 _aDeytieux-Belleau, Christelle
_eco-author
700 _aVulcain, Emmanuelle
_eco-author
700 _aPayet, Bertrand
_eco-author
700 _aDufossé, Laurent
_eco-author
700 _aLéchaudel, Mathieu
_eco-author
856 _uhttps://doi.org/10.1016/j.jplph.2015.05.019
942 _2lcc
_cJA
999 _c168873
_d168873