Effect of Lead Ions on the Phospholipid Composition in Leaves of Zea mays and Phaseolus vulgaris

Stefanov, Kamen; Seizova, Katya; Popova, Ivanka; Petkov, V.; Kimenov, G.; Попов, Симеон

doi:10.1016/s0176-1617(11)81511-7

Cited by 48 publications

(22 citation statements)

References 11 publications

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“…A decrease in total Chl in plants subjected to Pb might be due to Chl degradation (Fig. 1 A) by enhanced activity of chlorophyllase, the disruption of chloroplast stroma volume induced by ROS (Stefanov et al, 1995;Hadi, 2015), or due to an imbalance in the supply of nutrients, such as Mg and iron (Burzynski, 1987). When ASC was added to the growth medium, the biosynthesis of total Chl was improved and Chl degradation decreased (Fig.…”

Section: Discussionmentioning

confidence: 99%

Ascorbic acid improves the tolerance of wheat plants to lead toxicity

Alamri

Siddiqui

Al-Khaishany

et al. 2018

Journal of Plant Interactions

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Among the heavy metals (HMs), lead (Pb) is considered as a toxic HM which adversely affects growth and development of crop plants. The present experiment was aimed to investigate the potential role of ascorbic acid (ASC) in the reversal of Pb-inhibited nitrogen and sulfur assimilation enzymes activity and activity of photosynthesis enzyme ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) and growth response in wheat plants. Wheat seedlings were subjected to 0 mM (control) and 0.2 mM and 0.6 mM of ASC with and without 2 mM of Pb. Plants treated with Pb exhibited the following reduced growth characteristics (root length, shoot length, root fresh weight (FW), shoot FW, root dry weight (DW) and shoot DW). A decrease was also observed in the activity of Rubisco and ATP sulfurylase (ATP-S), relative water content (RWC), accumulation of total chlorophyll (Total Chl) and content of nutrients [nitrogen (N), phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg)] in Pb-treated plants. However, an increase in Chl degradation and in the activity of O-acetylserine(thiol)lyase (OAS-TL) and accumulation of cysteine (Cys), malondialdehyde (MDA) and hydrogen peroxide (H 2 O 2 ) was observed in plants under Pb stress. On the contrary, exogenous application of ASC mitigated the Pb-toxicity-induced oxidative damage by enhancing the activities of antioxidant enzymes, such as superoxide dismutase, catalase and glutathione reductase. Improved activity of antioxidant enzymes suppressed the formation of MDA and H 2 O 2 , which was reflected in the form of improved growth characteristics. Moreover, ASC induced improvement in plants defense systems by reduced Chl degradation and improved the content of essential nutrients (N, P, K, Ca and Mg) and Cys, RWC and the activity of Rubisco, ATP-S, NR and OAS-TL. ARTICLE HISTORY

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Section: Discussionmentioning

confidence: 99%

Ascorbic acid improves the tolerance of wheat plants to lead toxicity

Alamri

Siddiqui

Al-Khaishany

et al. 2018

Journal of Plant Interactions

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“…Lead toxicity inhibited photosynthesis adversely by distortion of chloroplast structure, reduction in rate of chlorophyll, plastoquinone and carotenoid synthesis, disruption of electron transport chain, cause CO 2 deficiency by stomatal closure, and reduction in the enzymatic activity of Calvin cycle (Xiong et al 2006;Singh et al 2010). It also causes changes in lipid composition of thylakoid membranes in the chloroplasts (Stefanov et al 1995). Pb diminished chlorophyll production by reduced uptake of Mg and Fe (essential components of chlorophyll) (Burzynski 1987).…”

Section: Photosynthetic Activity and Related Attributesmentioning

confidence: 99%

Lead toxicity in rice: effects, mechanisms, and mitigation strategies—a mini review

Ashraf

Kanu

et al. 2015

Environ Sci Pollut Res

219

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Lead (Pb) is a major environmental pollutant that affects plant morpho-physiological and biochemical attributes. Its higher levels in the environment are not only toxic to human beings but also harmful for plants and soil microbes. We have reviewed the uptake, translocation, and accumulation mechanisms of Pb and its toxic effects on germination, growth, yield, nutrient relation, photosynthesis, respiration, oxidative damage, and antioxidant defense system of rice. Lead toxicity hampers rice germination, root/shoot length, growth, and final yield. It reduces nutrient uptake through roots, disrupts chloroplastic ultrastructure and cell membrane permeability, induces alterations in leaves respiratory activities, produces reactive oxygen species (ROS), and triggers some enzyme and non-enzymatic antioxidants (as defense to oxidative damage). In the end, biochar amendments and phytoremediation technologies have been proposed as soil remediation approaches for Pb tainted soils.

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“…In the studies of heavy metals' action it was found that their application influenced both polar and hydrophobic parts of plant membranes. High concentrations of such metals such as cadmium (Cd) (Hernandez and Cooke 1997;Quartacci et al 2005;Nouairi et al 2006, Filek et al 2009, lead (Pb) (Przymusinski et al 1991;Stefanov et al 1993Stefanov et al , 1995, aluminum (Al) (Lindberg et al 1991;Papernik and Kochian 1997;Zhang et al 1997a;Ishikawa and Wagatsuma 1998) and copper (Cu) (Quartacci et al 2001;Ibrahim et al 2012) induced changes in the proportions of phospholipids and galactolipids as well as in the degree of fatty acid saturation. However, this effect was strongly dependent on the composition of membrane lipids (characteristic for plant genotype) as well as on the dose of applied metals.…”

Section: Tablementioning

confidence: 99%

Physicochemical techniques in description of interactions in model and native plant membranes under stressful conditions and in physiological processes

Rudolphi-Skórska

Sieprawska

2015

Acta Physiol Plant

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The diversity of chemical structure of lipids present in the cell membranes, concerning both a hydrophilic (polarity and charge) and hydrophobic (chain length and unsaturation of fatty acids residues) parts, assists in providing suitable physical and chemical properties for the course of multiple reaction within the membrane. This review presents the results of the changes in the lipid composition of native membranes of plant cells under stress conditions and during developmental processes. It also discussed the use of lipids to create model systems which allow for interpretation of specificity of reactions taking place in the membrane fragments. The spontaneous formation by lipids closed spherical structures (bi-layers) in an aqueous medium, and monolayers at the water/air interface creates a convenient model system for the native membranes. The review focuses on the techniques of electrokinetic potential (zeta potential) measurements and Langmuir monolayers' studies. The first gives the possibility to conclude about the modification of the polar part of the membranes, the second allows to determine their structural properties (fluidity, stiffness). The relatively rapid modification of the lipid composition under stress and during the course of developmental processes to ensure the optimal functions of membranes and organelles includes the changes of hydrophobic/hydrophilic character of lipid, as an important factor influencing the course of multiple reactions in cells. Understanding the physicochemical properties of lipids that accompany these processes may contribute to the correct description of the functionality of the cells under these conditions.

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Effect of Lead Ions on the Phospholipid Composition in Leaves of Zea mays and Phaseolus vulgaris

Cited by 48 publications

References 11 publications

Ascorbic acid improves the tolerance of wheat plants to lead toxicity

Ascorbic acid improves the tolerance of wheat plants to lead toxicity

Lead toxicity in rice: effects, mechanisms, and mitigation strategies—a mini review

Physicochemical techniques in description of interactions in model and native plant membranes under stressful conditions and in physiological processes

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