2016
DOI: 10.1007/s00709-016-0989-4
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Abstract: There is a very effective cross-talk between signals triggered by reactive oxygen species and hormonal responses in plants, activating proteins/enzymes likely to be involved in stress tolerance. Abscisic acid (ABA) is known as a stress hormone that takes part in the integration of signals. This work aimed to characterize the biochemical response and ultrastructural changes induced by cadmium (Cd) in the Micro-Tom (MT) sitiens ABA-deficient mutant (sit) and its wild-type (MT) counterpart. MT and sit plants were… Show more

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Cited by 63 publications
(43 citation statements)
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“…For example, sit plants submitted to 100 µM CdCl 2 at pH 6 for 96 h accumulated more Cd in the roots when compared to MT plants. However, an increase in vacuole number in MT roots was observed in the presence of Cd (Pompeu et al 2017). Thus, the important role of ABA appears to be related to a reduction in Cd accumulation in tomato (Pompeu et al 2017).…”
Section: Resultsmentioning
confidence: 88%
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“…For example, sit plants submitted to 100 µM CdCl 2 at pH 6 for 96 h accumulated more Cd in the roots when compared to MT plants. However, an increase in vacuole number in MT roots was observed in the presence of Cd (Pompeu et al 2017). Thus, the important role of ABA appears to be related to a reduction in Cd accumulation in tomato (Pompeu et al 2017).…”
Section: Resultsmentioning
confidence: 88%
“…In a recent study, the sit tomato mutant exhibited altered biochemical and morpho-anatomical responses to Cd exposure (Pompeu et al 2017). For example, sit plants submitted to 100 µM CdCl 2 at pH 6 for 96 h accumulated more Cd in the roots when compared to MT plants.…”
Section: Resultsmentioning
confidence: 98%
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“…In soil, most of the Cd (55%-90%) is presented as a free metal ion that is readily available to plants, being absorbed through roots and translocated to shoots after a short period of exposure (Gratão et al, 2015;Kabata-Pendias, 2011;Pompeu et al, 2017). Physicochemical characteristics of the soil, such as pH, texture, and organic matter content, affect Cd availability for plant absorption, which is particularly enhanced under acidic conditions (Castaldi & Melis, 2004;Kabata-Pendias, 2011;Kibria, Osman, & Ahmed, 2006;Manciulea & Ramsey, 2006;Melo, Alleoni, Carvalho, & Azevedo, 2011;Nogueirol, Monteiro, Gratão, Silva, & Azevedo, 2016).…”
Section: Introductionmentioning
confidence: 99%