2015
DOI: 10.1590/0103-8478cr20130966
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Pb and Cd on growth, leaf ultrastructure and essential oil yield mint (Mentha arvensis L.)

Abstract: Contamination of medicinal plants with heavy metals as Pb and Cd can affect the growth and the essential oil production of the plants and represent a risk to those who consume as medicine. This study aimed to evaluate the effects of absorption and localization of Pb and Cd on growth, ultrastructural aspects of leaves and essential oil yield and composition of Mentha arvensis,applied on the soil with increasing concentrations (8, 16, 32, 64 and 128mg kg -1 (8, 16, 32, 64 and 128mg kg -1

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Cited by 15 publications
(15 citation statements)
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“…Lead accumulation impedes the growth and development of crop plant due to lower uptake of essential minerals (Gopal and Rizvi, 2008). The growth inhibition under Pb stress was similar to that previously described by Jezler et al (2015) in Mentha arvensis. Lead concentration decreased the stem girth, root length; fresh and dry weight of 12 weeks old cassava varieties (Ano et al, 2013).…”
Section: Discussionsupporting
confidence: 84%
“…Lead accumulation impedes the growth and development of crop plant due to lower uptake of essential minerals (Gopal and Rizvi, 2008). The growth inhibition under Pb stress was similar to that previously described by Jezler et al (2015) in Mentha arvensis. Lead concentration decreased the stem girth, root length; fresh and dry weight of 12 weeks old cassava varieties (Ano et al, 2013).…”
Section: Discussionsupporting
confidence: 84%
“…Moreover, little is known about the ultrastructure of root cells exposed to Cd. There are only a few studies reporting the effect of Cd on the root plastids [25] or on the ultrastructure of the root meristematic cells [26,27], whereas most studies describe the alterations of the ultrastructure of leaves caused by Cd application [21,26,27,28,29,30,31]. It should also be stressed that most literature on this topic focuses on seedlings, mostly 7 [14,16] or 14 days old [13,21], while our study was to analyze older plants (four weeks old).…”
Section: Introductionmentioning
confidence: 99%
“…Non-essential and toxic elements Pb and Ni were present almost in the same levels in both tested samples of Mentha species. 7,12,17,23,24 In addition, in all samples, the measured content of Pb was significantly below recommended value of 10 mg kg −1 (WHO). 19,21…”
Section: Main Essential Elements (Macro-elements)mentioning
confidence: 72%
“…Relatively low content of Cu in wild samples compared to the content of Zn is due to the fact that higher Cu concentrations mean lower Zn content, because higher concentrations of Cu in the soil relative to Zn can reduce the availability of Zn to a plant, due to competition for the same sites for absorption into the plant root. [23][24][25] In cultivated herb samples (Table 2), no Cd was detected in all three samples, while the highest concentration was detected for Fe and the lowest concentrations for Pb. 24 The detected high concentrations of Fe and Zn in the samples of cultivated species of Mentha confirmed the results of previous published papers that the deficiency of Zn leads to a deficiency of Fe in plants.…”
Section: Resultsmentioning
confidence: 98%
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