Physiological Responses of Pistia stratiotes and Its Fluoride Removal Efficiency

Yun ZHANG; Jinfa CHEN

doi:10.5814/j.issn.1674-764x.2020.05.010

Journals >Journal of Resources and Ecology >Volume 11 >Issue 5 >Page 525 > Article

Journal of Resources and Ecology
Vol. 11, Issue 5, 525 (2020)

Physiological Responses of Pistia stratiotes and Its Fluoride
Removal Efficiency

Yun ZHANG and Jinfa CHEN^*

Author Affiliations

Department of Resource & Environment, Xichang University, Xichang 615000, Sichuan, China

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DOI: 10.5814/j.issn.1674-764x.2020.05.010 Cite this Article

Yun ZHANG, Jinfa CHEN. Physiological Responses of Pistia stratiotes and Its Fluoride
Removal Efficiency[J]. Journal of Resources and Ecology, 2020, 11(5): 525 Copy Citation Text

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Group	C₀(mg L^-1)	V_max(mg L^-1h^-1)	K_m (mg L^-1)	R²
AI	5	0.2533	-3.4237	0.9806
AII	10	0.485	-7.1748	0.9808
AIII	20	1.1145	-16.4028	0.9766
AIV	40	2.96	-43.6132	0.9895
AV	60	5.427	-77.0471	0.9898

Table 1.

Kinetic parameters of fluoride removal from treated water

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Treatment groups		AI	AII	AIII	AIV	AV	BI
Fresh weight (g)	Initial	101.4	101.8	101.9	101.5	103.0	102.8
Fresh weight (g)	Ending	92.0	86.9	76.3	65.6	54.2	143.6
SGR (% d^-1)		-1.22	-1.98	-3.62	-5.46	-8.03	4.18

Table 2.

Effect of different concentrations of fluoride on the growth characteristics of P. stratiotes

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Treatment groups			AI	AII	AIII	AIV	AV
Variable Significance coefficient P			0.0057	0.0097	0.0095	0.0012	0.0167
PCCs	ControlSOD&CAT	F^- in water / Fluoride in leaves	0.999	1.000	0.804	0.989	0.999
	ControlSOD&POD		0.982	0.967	0.995	0.995	1.000
	ControlCAT&POD		1.000	1.000	0.987	0.993	0.997
	ControlSOD&CAT	F^- in water / POD	0.900	0.848	0.999	0.781	0.706
	ControlSOD&POD	F^- in water / CAT	0.653	0.645	0.990	0.486	0.958
	ControlCAT&POD	F^- in water / SOD	0.911	0.804	1.000	0.855	0.672

Table 3.

Significance and PCCs between fluoride and the physiological indexes of the plant

Yun ZHANG, Jinfa CHEN. Physiological Responses of Pistia stratiotes and Its Fluoride
Removal Efficiency[J]. Journal of Resources and Ecology, 2020, 11(5): 525

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