Cu-tolerance Mechanisms of Elsholtzia harchowensis: Research Status and Prospect

doi:10.11924/j.issn.1000-6850.casb20191100815

Abstract

Abstract:

Elsholtzia harchowensis is regarded as a kind of the indicator plant of Cu, it has strong Cu-tolerance and Cu absorption ability. In recent years, the Cu tolerance mechanism of Elsholtzia harchowensis has been studied at home and abroad, and certain research results have been achieved. In this paper, the research status of Elsholtzia harchowensis was reviewed on oxidative stress, gas exchange,chlorophyll fluorescence parameters, proteomics of Cu tolerance, and Cu contaminated soil remediation. In addition, the paper suggested that further study should be conducted from the following perspectives: strengthening the study of tolerance protein and tolerance gene of Elsholtzia harchowensis, and improving the Cu-absorption ability by adding exogenous substances.

Key words: Elsholtzia harchowensis, Cu-tolerance mechanisms, research status, prospect

CLC Number:

Gong Qin, Wang Ling, Song Yaqi, Niu Duandan, Li Jiaxuan, Li Zhaohua. Cu-tolerance Mechanisms of Elsholtzia harchowensis: Research Status and Prospect[J]. Chinese Agricultural Science Bulletin, 2020, 36(32): 95-99.

Figures/Tables 3

References 35

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土壤Cu浓度/(mg/kg)	分布区域	根部Cu含量/(mg/kg)	地上部Cu含量/(mg/kg)	参考文献
65.3~1804	湖北省大冶市铜绿山铜矿区	140	茎部150、叶部234	[17]
600	湖北省大冶市铜绿山铜矿区	1788.05	茎部8.47、叶部12.86	[6]
600	湖北省阳新铜矿区	1807.47	茎部125.09、叶部238.25	[6]
3454	浙江省诸暨市铜矿区	600	125	[7]
524~7325	浙江省诸暨市江哩铺铜矿区	38.12-~385.59		[1]
600	湖北省红安农场	1987.55	茎部124.19、叶部502.26	[6]

土壤Cu浓度/(mg/kg)	分布区域	根部Cu含量/(mg/kg)	地上部Cu含量/(mg/kg)	参考文献
65.3~1804	湖北省大冶市铜绿山铜矿区	140	茎部150、叶部234	[17]
600	湖北省大冶市铜绿山铜矿区	1788.05	茎部8.47、叶部12.86	[6]
600	湖北省阳新铜矿区	1807.47	茎部125.09、叶部238.25	[6]
3454	浙江省诸暨市铜矿区	600	125	[7]
524~7325	浙江省诸暨市江哩铺铜矿区	38.12-~385.59		[1]
600	湖北省红安农场	1987.55	茎部124.19、叶部502.26	[6]

Cu浓度	栽培方式	处理天数/d	植物中Cu含量	参考文献
0~1200 mg/kg	土壤栽培	70	57~500 μg/每株植物	[7]
1580.2 mg/kg	田间栽培	170	地上部550~720 g/hm²	[7]
100 μmol/L	水培	8	叶部Cu含量约为110 mg/kg	[18]
100~500 μmol/L	水培	20	地上部Cu含量1133 mg/kg,根部Cu含量3417 mg/kg	[19]

Cu浓度	栽培方式	处理天数/d	植物中Cu含量	参考文献
0~1200 mg/kg	土壤栽培	70	57~500 μg/每株植物	[7]
1580.2 mg/kg	田间栽培	170	地上部550~720 g/hm²	[7]
100 μmol/L	水培	8	叶部Cu含量约为110 mg/kg	[18]
100~500 μmol/L	水培	20	地上部Cu含量1133 mg/kg,根部Cu含量3417 mg/kg	[19]

Cu浓度/(μmol/L)	处理天数/d	生理指标的变化	参考文献
0.2	56	非光化学猝灭值(NPQ)、电子积累量减少、类胡萝卜素含量降低、生物量降低、光合参数[F₀、Fv/Fm、Y(Ⅱ)]升高	[5]
50	8	磷酸酶活性、叶绿素含量、净光合速率、蒸腾速率、脯氨酸含量升高、SOD、CAT、GPX、APX活性稍有改变	[4]
100	6	叶部细胞质膜NADPH酶活性,POD、APX活性提高	[18]
0~200	8	叶片和根系中抗氧化酶作用发挥的均较好,可以防御此浓度以下的Cu毒害	[24]
500	8	膜质过氧化反应加剧,SOD、CAT、GPX、APX活性增加	[24]