The cell wall in plant cell response to trace metals: polysaccharide remodeling and its role in defense strategy
By M. Krzesłowska. Acta Physiologiae Plantarum, 2010
643 citations recorded by the source corpus.
This review paper is focused predominantly on the role of the cell wall in the defense response of plants to trace metals. It is generally known that this compartment accumulates toxic divalent and trivalent metal cations both during their uptake by the cell from the environment and at the final stage of their sequestration from the protoplast. However, from results obtained in recent years, our understanding of the role played by the cell wall in plant defense response to toxic metals has markedly altered. It has been shown that this compartment may function not only as a sink for toxic trace metal accumulation, but that it is also actively modified under trace metal stress. These modifications lead to an increase in the capacity of the cell wall to accumulate trace metals and a decrease of its permeability for trace metal migration into the protoplast. One of the most striking alterations is the enhancement of the level of low-methylesterified pectins: the polysaccharides able to bind divalent and trivalent metal ions. This review paper will present the most recent results, especially those that are concerned with polysaccharide level, composition and distribution under trace metal stress, and describe in detail the polysaccharides responsible for metal binding and immobilization in different groups of plants (algae and higher plants). The review also contains information related to the entry pathways of trace metals into the cell wall and their detection methods.
Subfields: Plant Science
View Paper: https://www.semanticscholar.org/paper/8b4899ad29b5abc318994dce8d69eafc2e22ac7d
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Plant Science
Citations in the corpus
- Heavy metal stress and responses in plants (2019, background): “All responses can be broadly classified as being avoidance or tolerant types (Krzesłowska 2011).”
- The molecular mechanism of zinc and cadmium stress response in plants (2012, background): “Low-methylesterified pectin comprises polysaccharides for the binding of divalent and trivalent metal ions [43].”
- Molecular Mechanisms Involved in Lead Uptake, Toxicity and Detoxification in Higher Plants (2013, positive): “Pb adsorption on cell constituents appears to play a keyrole in the restriction of Pb toxicity (Krzeslowska 2011).”
- Mechanism of Zinc absorption in plants: uptake, transport, translocation and accumulation (2016, background): “is an important mechanism to protect cellular metabolic processes from Zn toxicity (Krzeslowska 2011; Rascio and Navari-Izzo 2011).”
- Copper tolerance strategies involving the root cell wall pectins in Silene paradoxa L. (2012, background): “The increase in the amount of pectins, especially in those having a low degree of methyl-esterification, has been regarded as a symptom of the defense strategy and plant adaptation to elevated levels of heavy metals in the soil (Krzesłowska, 2011).”
- Arbuscular mycorrhizal fungi and its major role in plant growth, zinc nutrition, phosphorous regulation and phytoremediation (2021, background): “Moreover, compartmentalization of the intraradical fungal structures caused the alleviation of heavy metal toxicity (Krzesłowska 2011).”
- Bryophytes and heavy metals: a review (2018, background): “Some of them are essential for the normal metabolic functioning of organisms, but if deficient, or present in excess, they can lead to physiological stress and have detrimental consequences (Nagajyoti et al. 2010, Krzesłowska 2011).”