Role of Burkholderia cepacia CS8 in Cd-stress alleviation and phytoremediation by Catharanthus roseus

The current study was performed to assess the effect of Burkholderia cepacia CS8 on the phytoremediation of cadmium (Cd) by Catharanthus roseus grown in Cd-contaminated soil. The plants cultivated in Cd amended soil showed reduced growth, dry mass, gas-exchange capacity, and chlorophyll contents. Fu...

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Published in:International journal of phytoremediation 2018-05, Vol.20 (6), p.581-592
Main Authors: Khan, Waheed Ullah, Yasin, Nasim Ahmad, Ahmad, Sajid Rashid, Ali, Aamir, Ahmad, Aqeel, Akram, Waheed, Faisal, Muhammad
Format: Article
Language:English
Subjects:
1-Aminocyclopropane-1-carboxylate deaminase
Antioxidants
Ascorbic acid
Bioaccumulation
Biodegradation, Environmental
Biological magnification
Burkholderia cepacia
Cadmium
Catalase
Catharanthus
Catharanthus roseus
Chlorophyll
Flavonoids
Hydrogen Peroxide
Inoculation
L-Ascorbate peroxidase
Malondialdehyde
Moisture content
Oxidative stress
Peroxidase
Phenols
Phytoremediation
Plants (botany)
Proline
Protein biosynthesis
Sediment pollution
Soil amendment
Soil contamination
Soil pollution
Soil water
Solubilization
Stress
Stresses
Superoxide dismutase
Translocation
Water content
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Akram, Waheed
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description The current study was performed to assess the effect of Burkholderia cepacia CS8 on the phytoremediation of cadmium (Cd) by Catharanthus roseus grown in Cd-contaminated soil. The plants cultivated in Cd amended soil showed reduced growth, dry mass, gas-exchange capacity, and chlorophyll contents. Furthermore, the plants exhibited elevated levels of malondialdehyde (MDA) and hydrogen peroxide (H O ) under Cd stress. The bacterized plants showed higher shoot length, root length; fresh and dry weight. The improved stress tolerance in inoculated plants was attributed to the reduced quantity of MDA and H O , enhanced synthesis of protein, proline, phenols, flavonoids, and improved activity of antioxidant enzymes including peroxidase, superoxide dismutase, ascorbate peroxidase, and catalase. Similarly, the 1-aminocyclopropane-1-carboxylate deaminase activity, phosphate solubilization, auxin, and siderophore production capability of B. cepacia CS8 improved growth and stress alleviation in treated plants. The bacterial inoculation enhanced the amount of water extractable Cd from soil. Furthermore, the inoculated plants showed higher bioconcentration factor and translocation factor. The current study exhibits that B. cepacia CS8 improves stress alleviation and phytoextraction potential of C. roseus plants growing under Cd stress.
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subjects 1-Aminocyclopropane-1-carboxylate deaminase
Antioxidants
Ascorbic acid
Bioaccumulation
Biodegradation, Environmental
Biological magnification
Burkholderia cepacia
Cadmium
Catalase
Catharanthus
Catharanthus roseus
Chlorophyll
Flavonoids
Hydrogen Peroxide
Inoculation
L-Ascorbate peroxidase
Malondialdehyde
Moisture content
Oxidative stress
Peroxidase
Phenols
Phytoremediation
Plants (botany)
Proline
Protein biosynthesis
Sediment pollution
Soil amendment
Soil contamination
Soil pollution
Soil water
Solubilization
Stress
Stresses
Superoxide dismutase
Translocation
Water content
title Role of Burkholderia cepacia CS8 in Cd-stress alleviation and phytoremediation by Catharanthus roseus
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