A combination of five mechanisms confers a high tolerance for aluminum to a wild species of Poaceae, Andropogon virginicus L.

Ezaki, Bunichi; Jayaram, K. M.; Higashi, Aiko; Takahashi, Kenkou

doi:10.1016/j.envexpbot.2013.05.002

Cited by 36 publications

(23 citation statements)

References 46 publications

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“…Accumulation activity for Al in the AvABCG1 transporter probably depends on the Al concentration supplied. We previously reported that A. virginicus L. has a high Al transport activity from root to shoot and the transported Al was mainly observed in trichomes after a long period Al treatment by a microscopic observation of leaf surface (Ezaki et al, 2008(Ezaki et al, , 2013. In this study, we found that vascular bundle sheath is another compartment area of Al ions in leaf (Fig.…”

Section: Discussionmentioning

confidence: 49%

“…Fluorescent signals were also seen in the trichomes along both edges of the leaf section ( Fig. 7A; +Al, white asterisks in 2-day-treatment), in which the transferred Al from roots was stored and/or secreted (Ezaki et al, 2013). Additional signals were strongly detected in all vascular bundle sheaths by 10 days of treatment.…”

Section: Moreover Roots and Leaves Of Al-treated A Virginicus L (3mentioning

confidence: 84%

“…Recently, we reported that a wild poaceae plant, Andropogon virginicus L, shows a high Al tolerance with up to five independent tolerance mechanisms (Ezaki et al, 2008(Ezaki et al, , 2013. Since most of these mechanisms were inducible by Al stress, so the isolation and characterization of Al-induced genes seemed to be very instructive approach to clarify the Al tolerance mechanisms.…”

Section: Introductionmentioning

confidence: 98%

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A half-type AvABCG1 transporter derived from Andropogon virginicus L. confers aluminum tolerance

Ezaki

Takahashi

Utsumi

et al. 2015

Environmental and Experimental Botany

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Section: Discussionmentioning

confidence: 49%

Section: Moreover Roots and Leaves Of Al-treated A Virginicus L (3mentioning

confidence: 84%

Section: Introductionmentioning

confidence: 98%

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A half-type AvABCG1 transporter derived from Andropogon virginicus L. confers aluminum tolerance

Ezaki

Takahashi

Utsumi

et al. 2015

Environmental and Experimental Botany

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“…Previous studies have elucidated some of the mechanisms that lead to Al tolerance, such as the production of organic acids (Marschner 1991, Nguyen et al 2003, Tahara et al 2008, Ezaki et al 2013, the deposition of lignin on the cell wall (Ezaki et al 2005, Moura et al 2010, and the efflux of Al by proteins (Ezaki et al 2005). However, studies regarding the temporal dynamics of the Al stress response for a large number of important crop species, including Eucalyptus, are not available.…”

Section: Introductionmentioning

confidence: 99%

Temporal dynamics of the response to Al stress in Eucalyptus grandis × Eucalyptus camaldulensis

Alcântara¹,

Pizzaia²,

Piotto³

et al. 2015

An. Acad. Bras. Ciênc.

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Lipid peroxidation and root elongation of Eucalyptus grandis × Eucalyptus camaldulensis were studied under stress conditions in response to aluminum (Al), a metal known to limit agricultural productivity in acidic soils primarily due to reduced root elongation. In Brazil, the Grancam 1277 hybrid (E. grandis × E. camaldulensis) has been planted in the "Cerrado", a region of the country with a wide occurrence of acidic soils. The present study demonstrated that the hybrid exhibited root growth reduction and increased levels of lipid peroxidation after 24h of treatment with 100 µM of Al, which was followed by a reduction in lipid peroxidation levels and the recovery of root elongation after 48h of Al exposure, suggesting a rapid response to the early stressful conditions induced by Al. The understanding of the temporal dynamics of Al tolerance may be useful for selecting more tolerant genotypes and for identifying genes of interest for applications in bioengineering.

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“…The increased activity of antioxidant enzymes is also reported as being a mechanism for tolerance to Al in some varieties of corn and wheat (Boscolo et al, 2003;Ma et al, 2007). Changes in the activity of antioxidant enzymes are an important metabolic process that can influence on tolerance to aluminum by higher plants (Ezaki et al, 2013). Such changes depend on the plant species, the intensity and duration of stress.…”

Section: Introductionmentioning

confidence: 99%

Gene expression and antioxidant enzymatic activity in passion fruit exposed to aluminum

Pretti¹,

Luz²,

Perdigão³

et al. 2018

Afr. J. Agric. Res.

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The objective of this study was to investigate changes in enzymatic activity and gene expression related to antioxidant defense in two passion fruit cultivars (FB100 and FB200) exposed to aluminum. The specific activity of superoxide dismutase (SOD), catalase and ascorbate peroxidase were analyzed, in addition to their relative expression pattern. The characterization of gene expression was achieved by semi-quantitative reverse transcription-polymerase chain reaction (RT-PCR) technique followed by densitometric analysis. Plants were irrigated every two days with a nutrient solution: pH 6; pH 4; 0.2 and 2.0 mM Al (pH 4). The leaves were collected at the times 0 h, 2 days, 5 days and 10 days. The analysis of the potential oxidative stress induced by aluminum demonstrated increased expression of catalase and superoxide dismutase gene, and only on the cultivar FB100 this increase was accompanied by an increase of SOD enzymatic activity, which indicates its higher efficiency on the removal of reactive oxygen species (ROS) compared to cultivar FB200.

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A combination of five mechanisms confers a high tolerance for aluminum to a wild species of Poaceae, Andropogon virginicus L.

Cited by 36 publications

References 46 publications

A half-type AvABCG1 transporter derived from Andropogon virginicus L. confers aluminum tolerance

A half-type AvABCG1 transporter derived from Andropogon virginicus L. confers aluminum tolerance

Temporal dynamics of the response to Al stress in Eucalyptus grandis × Eucalyptus camaldulensis

Gene expression and antioxidant enzymatic activity in passion fruit exposed to aluminum

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