Chromium (VI) accumulation reduces chlorophyll biosynthesis, nitrate reductase activity and protein content in Nymphaea alba L.

Vajpayee, Poornima; Tripathi, Rudra Deo; Rai, Umesh; Ali, Mohammad; Singh, Sunil Kumar

doi:10.1016/s0045-6535(99)00426-9

Cited by 238 publications

(91 citation statements)

References 27 publications

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“…Hence, a reduction in NR in Cd-stressed T. vernicifluum could result from an inhibition of chlorophyll biosynthesis leading to lower photosynthetic rates, concomitantly supplying lower levels of photosynthates. This result is in accordance to that found in Nymphaea alba under Cr(VI) exposure (Vajpayee et al 2000). Thus, the decrease of NR is one reason that resulted in decreased biomass under Cd stress.…”

Section: Effects Of CD and N Deposition On Growth Photosynthesis Andsupporting

confidence: 92%

Soil cadmium toxicity and nitrogen deposition differently affect growth and physiology in Toxicodendron vernicifluum seedlings

Zhang

Yang

et al. 2012

Acta Physiol Plant

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Section: Effects Of CD and N Deposition On Growth Photosynthesis Andsupporting

confidence: 92%

Soil cadmium toxicity and nitrogen deposition differently affect growth and physiology in Toxicodendron vernicifluum seedlings

Zhang

Yang

et al. 2012

Acta Physiol Plant

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“…The reduction in all parameters was higher in wild type strain than in the tolerant one. Beside copper, chromium accumulation also reduces chlorophyll biosynthesis, nitrate reductase activity and protein content in Nymphaea alba L. (Vajpayee et al, 1999).…”

Section: Resultsmentioning

confidence: 99%

Effect of Heavy Metals on Biochemical Profile of Azolla filiculoides

Anand¹,

Kumar²,

Sheel³

2017

Int.J.Curr.Microbiol.App.Sci

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“…Campos et al (2012) also showed decreased total chlorophyll content in J. curcas grown under salinity conditions, but no such effect was observed in the carotenoid content. Overall, there is strong evidence that salt stress can reduce chlorophyll concentration, fact that has been attributed either to the decreased recovery ability of the photosynthetic apparatus or to lower chlorophyll synthesis caused by the decreased number of specific enzymes involved in pigment synthesis (Sharma and Hall, 1991;Vajpayee et al, 2000;Meeta et al, 2013).…”

Section: Morphologicalmentioning

confidence: 99%

Morpho-physiological adaptation of Jatropha curcas L. to salinity stress

Cavalcante¹,

Santos²,

Filho³

et al. 2018

Aust J Crop Sci

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The aim of the current study is to assess the growth response, biochemical changes, photosynthetic pigments content and gas exchanges of physic nut (Jatropha curcas) grown under natural saline conditions. The experiment was arranged in a completely randomized design based on the following soil electrical conductivities: 0.29 dS.m -1 (control), 1.76 dS.m -1 (moderate salt concentration), 2.61 dS.m -1 (high salt concentration), 3.79 dS.m -1 (very high salt concentration). Physic nut plants were kept under saline conditions for 19 days in greenhouse. Plant growth analyses were performed on a weekly basis. Plant biomass allocation was quantified at the end of the experiment. Leaf gas exchange, stomatal conductance, Fv/Fm and quantum yield were quantified 102 days after planting. Photosynthetic pigments, amino acids, proline and carbohydrates in fresh leaf tissue were also quantified. The leaf antioxidant enzymes catalase (CAT) and ascorbate peroxidase (APX) were quantified. Although there was no alteration in biomass allocation, the initial growth of J. curcas was gradually reduced by increasing salt concentration, which was observed through reduced plant height, stem diameter, and total number of leaves. Soil electrical conductivity 3.79 dS.m -1 was lethal to seedlings. Seedlings exposed to salt stress had their photosynthesis, stomatal conductance, transpiration and effective photochemical efficiency reduced, and their catalase and ascorbate peroxidase enzyme activity increased. Amino acids, proline and carbohydrate concentrations increased due to salt stress, whereas there was decrease in the chlorophyll content. J. curcas is sensitive to soil salinity at electrical conductivity levels higher than 1.76 dS.m -1 . To some extent, salinity effects can be relieved by osmolyte accumulation and by greater antioxidant activity; however, these factors were not sufficient to keep plant growth within normal rates.

show abstract

Chromium (VI) accumulation reduces chlorophyll biosynthesis, nitrate reductase activity and protein content in Nymphaea alba L.

Cited by 238 publications

References 27 publications

Soil cadmium toxicity and nitrogen deposition differently affect growth and physiology in Toxicodendron vernicifluum seedlings

Soil cadmium toxicity and nitrogen deposition differently affect growth and physiology in Toxicodendron vernicifluum seedlings

Effect of Heavy Metals on Biochemical Profile of Azolla filiculoides

Morpho-physiological adaptation of Jatropha curcas L. to salinity stress

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