Abstract
Textile industry is a continuous source of colored wastewater. This wastewater frequently used for irrigation purpose in many underdeveloped countries including Pakistan. In this study, we isolated the bacterial strains capable of decolorizing dyes and promote the plant growth. Hence to decolorize the reactive red 120 (RR120), the strain WS-D/183 was optimized following response surface methodology (RSM) based modeling approach. Moreover, strain WS-D/183 was also assessed for plant growth promoting characteristics. Results revealed that the strain WS-D/183 showed a good potential for decolorization of structurally diverse types of azo dyes on reaction with a mixture of heavy metal ions (Cr6+, Cd2+, Zn2+, Pb2+). This strain concurrently removed reactive dyes (100 mg L-1 ) and reduced Cr(VI). Results showed that each dye was decolorized up to 90% except reactive yellow-2 which was decolorized up to 57.4%. Furthermore, the bacterium reduced Cr(VI) by 41 to 95% along with concurrent decolorization of RR120. This bacterium was also found to carry plant growth promoting traits including inorganic phosphate solubilization (497.6 ± 14.8 µg mL-1 ) and indole-3-acetic acid production (21.07 ± 0.9 µg mL-1 ). A phytotoxicity evaluation study indicated that irrigation of mung bean [Vigna radiata (L.) Wilczek] with RR120, Cr(VI) and RR120+Cr(VI) contaminated waters treated with the strain WS-D/183 enhanced germination along with plumule and radical length of seedlings. Results suggested that Pseudomonas sp. WS-D/183 is a valuable addition to the bioresources, which can be used to devise textile wastewater treatment strategies as well as for integrated bioremediation and plant growth promotion in agricultural soils contaminated with textile wastewaters. © 2020 Friends Science Publishers
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Claims 8
Claim · model-written summary
Strain WS-D/183 decolorized each dye by up to 90%.
- Taxon
- Vigna radiata
.jpg?width=60)
Vigna radiatae0 - Outcome
- decolorizede1
- Value
- 90%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“mung bean [Vigna radiata (L.) Wilczek]”
e1“Results showed that each dye was decolorized up to 90%”
Claim · model-written summary
Strain WS-D/183 decolorized reactive yellow-2 by up to 57.4%.
- Taxon
- Vigna radiataVigna radiatae0
- Compound
- reactive yellow-2e2
- Outcome
- decolorizede2
- Value
- 57.4%e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mung bean [Vigna radiata (L.) Wilczek]”
e2“reactive yellow-2 which was decolorized up to 57.4%”
Claim · model-written summary
Strain WS-D/183 reduced Cr(VI) by 41 to 95%.
- Taxon
- Vigna radiataVigna radiatae0
- Outcome
- Cr(VI)e3
- Direction
- reducede3
- Value
- 41 to 95%e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mung bean [Vigna radiata (L.) Wilczek]”
e3“the bacterium reduced Cr(VI) by 41 to 95%”
Claim · model-written summary
Strain WS-D/183 solubilized inorganic phosphate at 497.6 ± 14.8 µg mL-1.
- Taxon
- Vigna radiataVigna radiatae0
- Outcome
- inorganic phosphate solubilizatione4
- Value
- 497.6 ± 14.8 µg mL-1e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mung bean [Vigna radiata (L.) Wilczek]”
e4“inorganic phosphate solubilization (497.6 ± 14.8 µg mL-1)”
Claim · model-written summary
Strain WS-D/183 produced indole-3-acetic acid at 21.07 ± 0.9 µg mL-1.
- Taxon
- Vigna radiataVigna radiatae0
- Outcome
- indole-3-acetic acid productione5
- Value
- 21.07 ± 0.9 µg mL-1e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mung bean [Vigna radiata (L.) Wilczek]”
e5“indole-3-acetic acid production (21.07 ± 0.9 µg mL-1)”
Claim · model-written summary
Mung bean seedlings irrigated with RR120, Cr(VI) and RR120+Cr(VI) contaminated waters treated with strain WS-D/183 had enhanced germination, plumule and radical length.
- Taxon
- Vigna radiataVigna radiatae6
- Treatment
- RR120, Cr(VI) and RR120+Cr(VI) contaminated waters treated with the strain WS-D/183e6
- Interactor
- strain WS-D/183e6symbiont
- Outcome
- germination along with plumule and radical length of seedlingse6
- Direction
- enhancede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“irrigation of mung bean [Vigna radiata (L.) Wilczek] with RR120, Cr(VI) and RR120+Cr(VI) contaminated waters treated with the strain WS-D/183 enhanced germination along with plumule and radical length of seedlings”
Claim · model-written summary
Strain WS-D/183 decolorized structurally diverse azo dyes in a mixture with heavy metal ions.
- Taxon
- Vigna radiataVigna radiatae0
- Material
- the strain WS-D/183e7
- Outcome
- decolorization of structurally diverse types of azo dyese7
- Qualifier
- on reaction with a mixture of heavy metal ions (Cr6+, Cd2+, Zn2+, Pb2+)e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mung bean [Vigna radiata (L.) Wilczek]”
e7“the strain WS-D/183 showed a good potential for decolorization of structurally diverse types of azo dyes on reaction with a mixture of heavy metal ions (Cr6+, Cd2+, Zn2+, Pb2+)”
Claim · model-written summary
Pseudomonas sp. WS-D/183 is a valuable bioresource for devising textile wastewater treatment strategies.
- Taxon
- Vigna radiataVigna radiatae0
- Material
- Pseudomonas sp. WS-D/183e7
- Outcome
- textile wastewater treatment strategiese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mung bean [Vigna radiata (L.) Wilczek]”
e7“Pseudomonas sp. WS-D/183 is a valuable addition to the bioresources, which can be used to devise textile wastewater treatment strategies”
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