Corrigendum to “Effects of dichromate on growth and root system architecture of Arabidopsis thaliana seedlings” [Plant Sci. 172 (2007) 684–691]

Ortíz-Castro, Randy; Trujillo, Miguel Martínez; Bucio, José López; Cervantes, Carlos

doi:10.1016/j.plantsci.2006.11.021

Cited by 4 publications

(3 citation statements)

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“…This hypothesis is supported by reports that root hair length was induced by Cu (Pasternak et al, 2005) and Cr (Castro et al, 2007), which are associated with changes in ROS metabolism and auxin homeostasis.…”

Section: Discussionsupporting

confidence: 70%

The Density and Length of Root Hairs Are Enhanced in Response to Cadmium and Arsenic by Modulating Gene Expressions Involved in Fate Determination and Morphogenesis of Root Hairs in Arabidopsis

Bahmani

Kim

et al. 2016

Front. Plant Sci.

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Root hairs are tubular outgrowths that originate from epidermal cells. Exposure of Arabidopsis to cadmium (Cd) and arsenic [arsenite, As(III)] increases root hair density and length. To examine the underlying mechanism, we measured the expression of genes involved in fate determination and morphogenesis of root hairs. Cd and As(III) downregulated TTG1 and GL2 (negative regulators of fate determination) and upregulated GEM (positive regulator), suggesting that root hair fate determination is stimulated by Cd and As(III). Cd and As(III) increased the transcript levels of genes involved in root hair initiation (RHD6 and AXR2) and root hair elongation (AUX1, AXR1, ETR1, and EIN2) except CTR1. DR5::GUS transgenic Arabidopsis showed a higher DR5 expression in the root tip, suggesting that Cd and As(III) increased the auxin content in the root tip. Knockdown of TTG1 in Arabidopsis resulted in increased root hair density and decreased root hair length compared with the control (Col-0) on 1/2 MS media. This phenotype may be attributed to the downregulation of GL2 and CTR1 and upregulation of RHD6. By contrast, gem mutant plants displayed a decrease in root hair density and length with reduced expression of RHD6, AXR2, AUX1, AXR1, ETR1, CTR1, and EIN2. Taken together, our results indicate that fate determination, initiation, and elongation of root hairs are stimulated in response to Cd and As(III) through the modulation of the expression of genes involved in these processes in Arabidopsis.

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Section: Discussionsupporting

confidence: 70%

The Density and Length of Root Hairs Are Enhanced in Response to Cadmium and Arsenic by Modulating Gene Expressions Involved in Fate Determination and Morphogenesis of Root Hairs in Arabidopsis

Bahmani

Kim

et al. 2016

Front. Plant Sci.

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“…Numerous, species were investigated and reported to exhibit reduced biomass production under high Cr(VI) levels, and the toxicity varies based on the different plant species, and concentration and type of Cr(VI) used as shown in (Table 5). Several factors such as reduction/imbalance in the uptake/translocation of water and nutrients, cell division and division rate inhibition, selective inorganic nutrient uptake inefficiency, increased ROS accumulation, essential nutrient substitution from ligand and plant key molecules, and Cr-induced ROS mediated alteration and damages to plastids, pigment contents, mitochondria, lipids, RNA, and DNA are involved in the Cr-decreased growth, development, and yield in plants at molecular, cellular, tissue, and organ levels are involved in the alteration in the plant biomass production [3,[15][16][17]19,47,49,50]. The degree of severity of these factors depends on the type of Cr and plant species [3].…”

Section: Chromium-mediated Changes In Total Biomass Production In Plantsmentioning

confidence: 99%

“…The toxic level of Cr inhibits plant growth and development, induces ultrastructural changes in subcellular compartments (cell wall, cell membrane, plastids, chloroplast, mitochondria, Golgi bodies, endoplasmic reticulum, vacuole, nuclei, and microtubules), persuades leaves chlorosis, root cell damage, reduces total pigment contents, disturbs water and mineral nutrition balance, alters enzymatic activities, and modulates cell division and cell cycle [3,[16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Chromium Morpho-Phytotoxicity

Wakeel

2020

Plants

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Chromium (Cr) is considered as one of the chronic pollutants that cause damage to all living forms, including plants. Various industries release an excessive amount of Cr into the environment. The increasing accumulation of Cr in agricultural land causes a significant decrease in the yield and quality of economically important crops. The Cr-induced biochemical, molecule, cytotoxic, genotoxic, and hormonal impairments cause the inhibition of plant growth and development. In the current study, we reviewed Cr morpho-phytotoxicity related scientific reports published between 2009 to 2019. We mainly focused on the Cr-induced inhibition of seed germination and total biomass production. Furthermore, Cr-mediated reduction in the root, branches, and leave growth and development were separately discussed. The Cr uptake mechanism and interference with the macro and micro-nutrient uptake were also discussed and visualized via a functional model. Moreover, a comprehensive functional model has been presented for the Cr release from the industries, its accumulation in the agricultural land, and ultimate morpho-phytotoxicity. It is concluded that Cr-reduces plant growth and development via its excess accumulation in the plant different parts and/or disruption of nutrient uptake.

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Ethylene mediates dichromate-induced oxidative stress and regulation of the enzymatic antioxidant system-related transcriptome in Arabidopsis thaliana

Wakeel

Ali

et al. 2019

Environmental and Experimental Botany

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Corrigendum to “Effects of dichromate on growth and root system architecture of Arabidopsis thaliana seedlings” [Plant Sci. 172 (2007) 684–691]

Cited by 4 publications

References 0 publications

The Density and Length of Root Hairs Are Enhanced in Response to Cadmium and Arsenic by Modulating Gene Expressions Involved in Fate Determination and Morphogenesis of Root Hairs in Arabidopsis

The Density and Length of Root Hairs Are Enhanced in Response to Cadmium and Arsenic by Modulating Gene Expressions Involved in Fate Determination and Morphogenesis of Root Hairs in Arabidopsis

Chromium Morpho-Phytotoxicity

Ethylene mediates dichromate-induced oxidative stress and regulation of the enzymatic antioxidant system-related transcriptome in Arabidopsis thaliana

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