Feasibility of enhanced phytoextraction of Zn contaminated soil with Zn mobilizing and plant growth promoting endophytic bacteria

Xin Xian Long; Xue Mei Chen; Jonathan W C WONG; Ze Bin Wei; Qi Tang Wu

doi:10.1016/S1003-6326(13)62746-6

Feasibility of enhanced phytoextraction of Zn contaminated soil with Zn mobilizing and plant growth promoting endophytic bacteria

Xin Xian Long^*, Xue Mei Chen, Jonathan W C WONG, Ze Bin Wei, Qi Tang Wu

^*Corresponding author for this work

Department of Biology

Research output: Contribution to journal › Journal article › peer-review

30 Citations (Scopus)

Abstract

Three bacterial endophytes of Sedum alfredii, VI₈L₂, II₈L₄ and VI₈R₂, were examined for promoting soil Zn bioavailability and Zn accumulation in S. alfredii. Results showed that three strains were re-introduced into S. alfredii rhizosphere soils under Zn stress and resulted in better plant growth, as roots biomass increased from 80% to 525% and shoot biomass from 11% to 47% compared with the uninoculated ones. Strains IV₈L₂, II₈L ₄ and IV₈R₂ significantly increased shoot and root Zn concentrations in the ZnCO₃ contaminated soil. Inoculation with strain IV₈L₂ resulted in 44% and 39% higher shoot and root Zn concentrations, while strain IV₈R₂ significantly decreased shoot Zn concentration in the Zn₃(PO₄) ₂ contaminated soils. In the aged contaminated soil, isolates IV ₈L₂, II₈L₄ and IV₈R ₂ significantly increased root Zn concentration, but decreased shoot Zn concentration of Sedum alfredii. It suggested that endophytes might be used for enhancing phytoextraction efficiency.

Original language	English
Pages (from-to)	2389-2396
Number of pages	8
Journal	Transactions of Nonferrous Metals Society of China
Volume	23
Issue number	8
DOIs	https://doi.org/10.1016/S1003-6326(13)62746-6
Publication status	Published - Aug 2013

Scopus Subject Areas

Condensed Matter Physics
Geotechnical Engineering and Engineering Geology
Metals and Alloys
Materials Chemistry

User-Defined Keywords

bioavailability
endophytic bacteria
phytoremediation
Sedum alfredii
Zn

UN SDGs

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

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10.1016/S1003-6326(13)62746-6

Cite this

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title = "Feasibility of enhanced phytoextraction of Zn contaminated soil with Zn mobilizing and plant growth promoting endophytic bacteria",

abstract = "Three bacterial endophytes of Sedum alfredii, VI8L2, II8L4 and VI8R2, were examined for promoting soil Zn bioavailability and Zn accumulation in S. alfredii. Results showed that three strains were re-introduced into S. alfredii rhizosphere soils under Zn stress and resulted in better plant growth, as roots biomass increased from 80% to 525% and shoot biomass from 11% to 47% compared with the uninoculated ones. Strains IV8L2, II8L 4 and IV8R2 significantly increased shoot and root Zn concentrations in the ZnCO3 contaminated soil. Inoculation with strain IV8L2 resulted in 44% and 39% higher shoot and root Zn concentrations, while strain IV8R2 significantly decreased shoot Zn concentration in the Zn3(PO4) 2 contaminated soils. In the aged contaminated soil, isolates IV 8L2, II8L4 and IV8R 2 significantly increased root Zn concentration, but decreased shoot Zn concentration of Sedum alfredii. It suggested that endophytes might be used for enhancing phytoextraction efficiency.",

keywords = "bioavailability, endophytic bacteria, phytoremediation, Sedum alfredii, Zn",

author = "Long, {Xin Xian} and Chen, {Xue Mei} and WONG, {Jonathan W C} and Wei, {Ze Bin} and Wu, {Qi Tang}",

note = "Funding Information: Foundation item: Project (40973055) supported by the National Natural Science Foundation of China; Project (U0833004) supported by the NSFC-Guangdong Joint Foundation of China Corresponding author: Xin-xian LONG; Tel/Fax: +86-20-85288326; E-mail: [email protected] DOI: 10.1016/S1003-6326(13)62746-6",

year = "2013",

month = aug,

doi = "10.1016/S1003-6326(13)62746-6",

language = "English",

volume = "23",

pages = "2389--2396",

journal = "Transactions of Nonferrous Metals Society of China",

issn = "1003-6326",

publisher = "Nonferrous Metals Society of China",

number = "8",

}

TY - JOUR

T1 - Feasibility of enhanced phytoextraction of Zn contaminated soil with Zn mobilizing and plant growth promoting endophytic bacteria

AU - Long, Xin Xian

AU - Chen, Xue Mei

AU - WONG, Jonathan W C

AU - Wei, Ze Bin

AU - Wu, Qi Tang

N1 - Funding Information: Foundation item: Project (40973055) supported by the National Natural Science Foundation of China; Project (U0833004) supported by the NSFC-Guangdong Joint Foundation of China Corresponding author: Xin-xian LONG; Tel/Fax: +86-20-85288326; E-mail: [email protected] DOI: 10.1016/S1003-6326(13)62746-6

PY - 2013/8

Y1 - 2013/8

N2 - Three bacterial endophytes of Sedum alfredii, VI8L2, II8L4 and VI8R2, were examined for promoting soil Zn bioavailability and Zn accumulation in S. alfredii. Results showed that three strains were re-introduced into S. alfredii rhizosphere soils under Zn stress and resulted in better plant growth, as roots biomass increased from 80% to 525% and shoot biomass from 11% to 47% compared with the uninoculated ones. Strains IV8L2, II8L 4 and IV8R2 significantly increased shoot and root Zn concentrations in the ZnCO3 contaminated soil. Inoculation with strain IV8L2 resulted in 44% and 39% higher shoot and root Zn concentrations, while strain IV8R2 significantly decreased shoot Zn concentration in the Zn3(PO4) 2 contaminated soils. In the aged contaminated soil, isolates IV 8L2, II8L4 and IV8R 2 significantly increased root Zn concentration, but decreased shoot Zn concentration of Sedum alfredii. It suggested that endophytes might be used for enhancing phytoextraction efficiency.

AB - Three bacterial endophytes of Sedum alfredii, VI8L2, II8L4 and VI8R2, were examined for promoting soil Zn bioavailability and Zn accumulation in S. alfredii. Results showed that three strains were re-introduced into S. alfredii rhizosphere soils under Zn stress and resulted in better plant growth, as roots biomass increased from 80% to 525% and shoot biomass from 11% to 47% compared with the uninoculated ones. Strains IV8L2, II8L 4 and IV8R2 significantly increased shoot and root Zn concentrations in the ZnCO3 contaminated soil. Inoculation with strain IV8L2 resulted in 44% and 39% higher shoot and root Zn concentrations, while strain IV8R2 significantly decreased shoot Zn concentration in the Zn3(PO4) 2 contaminated soils. In the aged contaminated soil, isolates IV 8L2, II8L4 and IV8R 2 significantly increased root Zn concentration, but decreased shoot Zn concentration of Sedum alfredii. It suggested that endophytes might be used for enhancing phytoextraction efficiency.

KW - bioavailability

KW - endophytic bacteria

KW - phytoremediation

KW - Sedum alfredii

KW - Zn

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Feasibility of enhanced phytoextraction of Zn contaminated soil with Zn mobilizing and plant growth promoting endophytic bacteria

Abstract

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