Interaction of bioaccumulation of heavy metal chromium with water relation, mineral nutrition and photosynthesis in developed leaves of Lolium perenne L.

Vernay, Philippe; Gauthier-Moussard, Cécile; Hitmi, Adnane

doi:10.1016/j.chemosphere.2007.02.052

Cited by 194 publications

(83 citation statements)

References 55 publications

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“…2). Vernay et al (2007) showed that the chlorophyll a/b ratio decreased significantly as a result of 100 µM Cr treatment. This is because the Cr treatment affected chlorophyll a more than chlorophyll b. Cr (VI) (0.10, 0.15, and 0.25 mM) treatments of T. aestivum seedlings led to a lower amount of chlorophyll a and b (Subrahmanyam 2008).…”

Section: Resultsmentioning

confidence: 99%

Effects of copper and chromium and high temperature on growth, proline and protein content in wheat seedlings

Muslu

Ergün

2013

Bangladesh J. Bot.

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Effects of interactions between high temperature and chromium (Cr(VI)) and copper (Cu) on wheat (Triticum aestivum L. cv. Dagdas 94) seedlings were investigated. High concentrations of Cr and Cu at 40°C decreased the root and shoot length and dry weight. The total chlorophyll content was decreased at 30 µM Cr + 40°C. At the high Cr and Cu concentrations, carotenoid content was increased compared to that of control groups. Heavy metal treatment increased proline content but decreased that of soluble protein. In addition, chromium showed greater toxic effects on growth and biochemical parameters than that of Cu.

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Section: Resultsmentioning

confidence: 99%

Effects of copper and chromium and high temperature on growth, proline and protein content in wheat seedlings

Muslu

Ergün

2013

Bangladesh J. Bot.

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“…Photosynthesis is affected by damage of photosynthetic apparatus, inhibition of electron transport, carbon fixation capacity and photophosphorylation potential (Küpper et al 1996). It was found that especially photosystem II (PS II) is affected by an excessive level of Zn (Vernay et al 2007;Paiva et al 2009;Janik et al 2010;Dhir et al 2011), while on the other hand an increase of PS I activity supported the build-up of a transthylakoid proton gradient, which subsequently helped maintain the photophosphorylation potential (Dhir et al 2011). Previous investigations revealed a decrease of photosynthesis rate, due to a large reduction of stomatal conductance and the transpiration rate (Mukhopadhyay et al 2013), which might be connected with the effect of Zn excess on the photosynthetic apparatus (Prasad and Strzalka 1999).…”

Section: Introductionmentioning

confidence: 99%

Photosynthetic activity in relation to chlorophylls, carbohydrates, phenolics and growth of a hybrid Salix purpurea × triandra × viminalis 2 at various Zn concentrations

et al. 2015

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Key message Zn caused an increase of photosynthesis activity, carbohydrates and chlorophyll at the level 1-2.5 mM, while phenols revealed a continuous increase together with Zn increase in the medium. Abstract The aim of the present study was to determine the effect of various Zn application levels on some physiological, morphological and biochemical parameters of a hybrid Salix purpurea 9 triandra 9 viminalis 2. Plants were cultivated under control conditions with application of Zn in the range 0-5 mM. The effects on net photosynthesis rate (P N ), stomatal conductance (g s ), transpiration rate (E), intercellular CO 2 (C i ), chlorophyll a and b, carotenoids, growth, sugars and phenols were analysed. Our investigations confirmed a dual role of Zn, with benefits at the level 1-2.5 mM, and a decrease of measured photosynthesis activity, carbohydrates and chlorophyll below and above this range. Moreover, the decrease of these parameters at the highest Zn application did not reach the level of control plants. This means that this species may have further potential as an accumulator in polluted areas. However, phenols revealed a continuous increase together with Zn increase in the medium.

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“…A decrease in the water content of leaves and roots is associated with ion toxicity, stomatal malfunctioning, and decreased CO 2 assimilation and photosynthesis which ultimately results in serious metabolic perturbations reducing plant growth and development. 1,16,17 To adjust physiological water shortage, plants accumulate an array of organic compounds, known as osmolytes. Pro, besides acting as an osmolyte, participates in metal chelation, ROS detoxification, and signal transduction.…”

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confidence: 99%

Interactive effects of nitric oxide and glutathione in mitigating copper toxicity of rice (Oryza sativaL.) seedlings

Mostofa

Seraj

Fujita

2015

Plant Signaling & Behavior

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Nitric oxide (NO) and glutathione (GSH) are 2 vital components of the antioxidant system that play diverse roles in plant responses to abiotic stresses. Recently, we have reported that exogenous supply of both these molecules reduced copper (Cu) toxicity in rice seedlings. Individual as well as co-treatment of sodium nitroprusside (SNP: a NO donor) and GSH with Cu significantly mitigated the adverse effects of Cu, evident in the reduced level of oxidative markers such as H 2 O 2 , superoxide (O 2 ¢¡ ), malondialdehyde (MDA), and proline (Pro). GSH content and most of the antioxidative and glyoxalase enzymes were up-regulated upon Cu stress, indicating their responses were co-related with the level of stress. Our results indicated that direct ROS scavenging, reduced Cu uptake, and the balanced antioxidative and glyoxalase systems, at least in part, successfully executed NO-and GSH-mediated alleviation of Cu toxicity in rice seedlings. In addition, the combined effect of adding SNP and GSH together was more efficient than the effect of adding them individually. Here, we are speculating that 1) GSH and Pro could be used as potential markers for copper stress, and 2) adding SNP and GSH might produce S-nitrosoglutathione (GSNO) which could be a source of bioactive NO and may affect many regulatory processes involved in Cu-stress tolerance. We further note that the combined effect of adding SNP and GSH was pronounced in inhibiting the uptake and translocation of Cu in rice seedlings.

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Interaction of bioaccumulation of heavy metal chromium with water relation, mineral nutrition and photosynthesis in developed leaves of Lolium perenne L.

Cited by 194 publications

References 55 publications

Effects of copper and chromium and high temperature on growth, proline and protein content in wheat seedlings

Effects of copper and chromium and high temperature on growth, proline and protein content in wheat seedlings

Photosynthetic activity in relation to chlorophylls, carbohydrates, phenolics and growth of a hybrid Salix purpurea × triandra × viminalis 2 at various Zn concentrations

Interactive effects of nitric oxide and glutathione in mitigating copper toxicity of rice (Oryza sativaL.) seedlings

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