Effects of cadmium stress on chlorophyll fluorescence parameters of Lemna minor L.

Ling Li; Lin Yuan; Lina Song; Yongjie Gu

Effects of cadmium stress on chlorophyll fluorescence parameters of Lemna minor L.

Ling Li, Lin Yuan, Lina Song, Yongjie Gu

State Key Laboratory of Estuarine and Coastal Research (School of Marine Sciences)

East China Normal University

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The chlorophyll fluorescence parameters and chlorophyll content of Lemna minor L. were measured under different concentrations of cadmium (0, 1, 2, 4, 6, 8 and 10 mg · L^-1). The results showed that the maximum quantum yield (F_v/F_m), effective quantum yield (Φ_PSII), photochemical quenching (qP), photosynthetic electron transport (rETR) and plastoquinone pool (F_v/2) decreased, while the non-photochemical quenching (qN) and water-splitting apparatus inactivation extent (F_o/F_v) increased under cadmium stress. Furthermore, the chlorophyll content decreased significantly and chlorophyll a decreased more than chlorophyll b. All these results suggested that the photosynthetic activities of PS II system for Lemna minor were inhibited under cadmium stress. F_o/F_v, most sensitive to cadmium, could be a useful indicator of heavy metal-stress.

Original language	English
Pages (from-to)	1062-1068
Number of pages	7
Journal	Huanjing Kexue Xuebao / Acta Scientiae Circumstantiae
Volume	30
Issue number	5
State	Published - May 2010

Keywords

Cadmium stress
Chlorophyll content
Chlorophyll fluorescence
Lemna minor L.

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This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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title = "Effects of cadmium stress on chlorophyll fluorescence parameters of Lemna minor L.",

abstract = "The chlorophyll fluorescence parameters and chlorophyll content of Lemna minor L. were measured under different concentrations of cadmium (0, 1, 2, 4, 6, 8 and 10 mg · L-1). The results showed that the maximum quantum yield (Fv/Fm), effective quantum yield (ΦPSII), photochemical quenching (qP), photosynthetic electron transport (rETR) and plastoquinone pool (Fv/2) decreased, while the non-photochemical quenching (qN) and water-splitting apparatus inactivation extent (Fo/Fv) increased under cadmium stress. Furthermore, the chlorophyll content decreased significantly and chlorophyll a decreased more than chlorophyll b. All these results suggested that the photosynthetic activities of PS II system for Lemna minor were inhibited under cadmium stress. Fo/Fv, most sensitive to cadmium, could be a useful indicator of heavy metal-stress.",

keywords = "Cadmium stress, Chlorophyll content, Chlorophyll fluorescence, Lemna minor L.",

author = "Ling Li and Lin Yuan and Lina Song and Yongjie Gu",

year = "2010",

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journal = "Huanjing Kexue Xuebao / Acta Scientiae Circumstantiae",

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TY - JOUR

T1 - Effects of cadmium stress on chlorophyll fluorescence parameters of Lemna minor L.

AU - Li, Ling

AU - Yuan, Lin

AU - Song, Lina

AU - Gu, Yongjie

PY - 2010/5

Y1 - 2010/5

N2 - The chlorophyll fluorescence parameters and chlorophyll content of Lemna minor L. were measured under different concentrations of cadmium (0, 1, 2, 4, 6, 8 and 10 mg · L-1). The results showed that the maximum quantum yield (Fv/Fm), effective quantum yield (ΦPSII), photochemical quenching (qP), photosynthetic electron transport (rETR) and plastoquinone pool (Fv/2) decreased, while the non-photochemical quenching (qN) and water-splitting apparatus inactivation extent (Fo/Fv) increased under cadmium stress. Furthermore, the chlorophyll content decreased significantly and chlorophyll a decreased more than chlorophyll b. All these results suggested that the photosynthetic activities of PS II system for Lemna minor were inhibited under cadmium stress. Fo/Fv, most sensitive to cadmium, could be a useful indicator of heavy metal-stress.

AB - The chlorophyll fluorescence parameters and chlorophyll content of Lemna minor L. were measured under different concentrations of cadmium (0, 1, 2, 4, 6, 8 and 10 mg · L-1). The results showed that the maximum quantum yield (Fv/Fm), effective quantum yield (ΦPSII), photochemical quenching (qP), photosynthetic electron transport (rETR) and plastoquinone pool (Fv/2) decreased, while the non-photochemical quenching (qN) and water-splitting apparatus inactivation extent (Fo/Fv) increased under cadmium stress. Furthermore, the chlorophyll content decreased significantly and chlorophyll a decreased more than chlorophyll b. All these results suggested that the photosynthetic activities of PS II system for Lemna minor were inhibited under cadmium stress. Fo/Fv, most sensitive to cadmium, could be a useful indicator of heavy metal-stress.

KW - Cadmium stress

KW - Chlorophyll content

KW - Chlorophyll fluorescence

KW - Lemna minor L.

UR - https://www.scopus.com/pages/publications/77954277624

M3 - 文章

AN - SCOPUS:77954277624

SN - 0253-2468

VL - 30

SP - 1062

EP - 1068

JO - Huanjing Kexue Xuebao / Acta Scientiae Circumstantiae

JF - Huanjing Kexue Xuebao / Acta Scientiae Circumstantiae

IS - 5

ER -

Effects of cadmium stress on chlorophyll fluorescence parameters of Lemna minor L.

Abstract

Keywords

UN SDGs

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