Impact of cadmium stress on two maize hybrids

Vatehová, Zuzana; Malovı́ková, Anna; Kollárová, Karin; Kučerová, Danica; Lišková, Desana

doi:10.1016/j.plaphy.2016.06.035

Cited by 32 publications

(22 citation statements)

References 37 publications

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“…These findings suggest that pectin modifications for sure play an important role in determining the cell wall stiffness, which eventually has major consequences for cellular growth and plant development, also under stress conditions such as Cd exposure. In two Zea mays hybrid plants with a different Cd tolerance, Cd exposure resulted in a drop in the cellulose content in both hybrids ( Vatehova et al, 2016 ). This observation is in agreement with results obtained in O. sativa plants ( Xiong et al, 2009 ).…”

Section: Cadmium Induces Cell Wall Remodelingmentioning

confidence: 99%

“…However, as the authors pointed out, these findings considering a cellulose decrease were not consistent with those obtained from dicot L. usitatissimum plants ( Douchiche et al, 2007 ). Therefore, it was hypothesized that different defense responses are activated in monocot and dicot plants in response to Cd exposure ( Parrotta et al, 2015 ; Vatehova et al, 2016 ).…”

Section: Cadmium Induces Cell Wall Remodelingmentioning

confidence: 99%

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Reciprocal Interactions between Cadmium-Induced Cell Wall Responses and Oxidative Stress in Plants

et al. 2017

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Cadmium (Cd) pollution renders many soils across the world unsuited or unsafe for food- or feed-orientated agriculture. The main mechanism of Cd phytotoxicity is the induction of oxidative stress, amongst others through the depletion of glutathione. Oxidative stress can damage lipids, proteins, and nucleic acids, leading to growth inhibition or even cell death. The plant cell has a variety of tools to defend itself against Cd stress. First and foremost, cell walls might prevent Cd from entering and damaging the protoplast. Both the primary and secondary cell wall have an array of defensive mechanisms that can be adapted to cope with Cd. Pectin, which contains most of the negative charges within the primary cell wall, can sequester Cd very effectively. In the secondary cell wall, lignification can serve to immobilize Cd and create a tougher barrier for entry. Changes in cell wall composition are, however, dependent on nutrients and conversely might affect their uptake. Additionally, the role of ascorbate (AsA) as most important apoplastic antioxidant is of considerable interest, due to the fact that oxidative stress is a major mechanism underlying Cd toxicity, and that AsA biosynthesis shares several links with cell wall construction. In this review, modifications of the plant cell wall in response to Cd exposure are discussed. Focus lies on pectin in the primary cell wall, lignification in the secondary cell wall and the importance of AsA in the apoplast. Regarding lignification, we attempt to answer the question whether increased lignification is merely a consequence of Cd toxicity, or rather an elicited defense response. We propose a model for lignification as defense response, with a central role for hydrogen peroxide as substrate and signaling molecule.

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Section: Cadmium Induces Cell Wall Remodelingmentioning

confidence: 99%

Section: Cadmium Induces Cell Wall Remodelingmentioning

confidence: 99%

Reciprocal Interactions between Cadmium-Induced Cell Wall Responses and Oxidative Stress in Plants

et al. 2017

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“…The cell wall cellulose content was shown to decrease in O. sativa and Zea mays under Cd exposure, but an increase was observed in Linum usitatissimum . Therefore, it is proposed that different defense strategies are present between monocots and dicots [175,177,187]. Recently, it was shown that Cd accumulates preferably within cellulose in the Cd-sensitive G. max BX10 variety, but contrarily, the Cd-tolerant G. max HX3 accumulated more Cd in cell wall-related pectin [188].…”

Section: Vegetative Plant Growthmentioning

confidence: 99%

Cadmium and Plant Development: An Agony from Seed to Seed

Huybrechts

Cuypers

Deckers

et al. 2019

IJMS

138

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Anthropogenic pollution of agricultural soils with cadmium (Cd) should receive adequate attention as Cd accumulation in crops endangers human health. When Cd is present in the soil, plants are exposed to it throughout their entire life cycle. As it is a non-essential element, no specific Cd uptake mechanisms are present. Therefore, Cd enters the plant through transporters for essential elements and consequently disturbs plant growth and development. In this review, we will focus on the effects of Cd on the most important events of a plant’s life cycle covering seed germination, the vegetative phase and the reproduction phase. Within the vegetative phase, the disturbance of the cell cycle by Cd is highlighted with special emphasis on endoreduplication, DNA damage and its relation to cell death. Furthermore, we will discuss the cell wall as an important structure in retaining Cd and the ability of plants to actively modify the cell wall to increase Cd tolerance. As Cd is known to affect concentrations of reactive oxygen species (ROS) and phytohormones, special emphasis is put on the involvement of these compounds in plant developmental processes. Lastly, possible future research areas are put forward and a general conclusion is drawn, revealing that Cd is agonizing for all stages of plant development.

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“…Maize (Zea mays L.) is one of the most important crops used for human and animal diet in the world (Godfray et al 2010), and in some cases, maize-producing lands are at high risk of cadmium contamination (Chumbley y Unwin 1982; Dharma-Wardana 2018). It has been reported that Cd reduces growth, induces chlorosis, alters chloroplast ultrastructure, produces oxidative damage, modi es cell wall composition, and affects polyamine metabolism in maize plants (Anjum et al 2015;Vatehová et al 2016; Sei kalhor et al 2020). Also, previous data indicate that maize plants tend to retain and accumulate cadmium at the root level (Anjum et al 2015;Vatehová et al 2016), where ROS production is induced soon after metal exposure (Liu et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Metabolic And Biochemical Changes Associated With Root Growth Restriction Under Cd Stress During Maize Pre-Emergence

Matayoshi

Pena

Arbona

et al. 2021

Preprint

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Cadmium (Cd) pollution of agricultural soils is a growing global problem. Plant growth restriction is the main visible symptom of Cd toxicity, and this metal may be particularly harmful to the preformed, seminal root during the pre-emergence stage. In the present study, we focused on Cd phytotoxicity on seminal root growth, nutrient composition, redox status, and hormone homeostasis during the pre-emergence stage, distinguishing between the root apex and the remaining root tissue. After 72 h of metal exposure (50 and 100 µM CdCl2), root length and biomass was diminished, as well as Ca, Fe, Mg, and Mn contents. A redox imbalance was evidenced by changes in peroxidase activities and decreased ascorbate-dehydroascorbate ratio in both root parts. There was less accumulation of carbonylated proteins in both root fractions upon exposition to 50 µM Cd, compared to 100 µM Cd, and this was related to increased 20S proteasome activities. Cd incremented ABA, IAA, and SA contents, but drastically reduced the biologically active gibberellin GA4 and the conjugate jasmonoyl isoleucine (JA-Ile). We demonstrated that the whole root tissue is involved in maize response to Cd stress, which entails redox and hormonal rearrangements, probably directed to widen plant defense lines at the expense of root growth.

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Impact of cadmium stress on two maize hybrids

Cited by 32 publications

References 37 publications

Reciprocal Interactions between Cadmium-Induced Cell Wall Responses and Oxidative Stress in Plants

Reciprocal Interactions between Cadmium-Induced Cell Wall Responses and Oxidative Stress in Plants

Cadmium and Plant Development: An Agony from Seed to Seed

Metabolic And Biochemical Changes Associated With Root Growth Restriction Under Cd Stress During Maize Pre-Emergence

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