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Effect of Dark Septate Endophytic Fungus Gaeumannomyces cylindrosporus on Plant Growth, Photosynthesis and Pb Tolerance of Maize (Zea mays L.)
Ban Yihui1,2; Xu Zhouying1; Yang Yurong1; Zhang Haihan1; Chen Hui1; Tang Ming1,3; Tang, M (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.; Tang, M (reprint author), Northwest A&F Univ, Coll Forestry, Yangling 712100, Peoples R China.
SubtypeArticle
2017
Source PublicationPEDOSPHERE
ISSN1002-0160
description.correspondentemailtangm@nwsuaf.edu.cn
Volume27Issue:2Pages:283-292
AbstractDark septate endophytic (DSE) fungi are ubiquitous and cosmopolitan, and occur widely in association with plants in heavy metal stress environment. However, little is known about the effect of inoculation with DSE fungi on the host plant under heavy metal stress. In this study, Gaeumannomyces cylindrosporus, which was isolated from Pb-Zn mine tailings in China and had been proven to have high Pb tolerance, was inoculated onto the roots of maize (Zea mays L.) seedlings to study the effect of DSE on plant growth, photosynthesis, and the translocation and accumulation of Pb in plant under stress of different Pb concentrations. The growth indicators (height, basal diameter, root length, and biomass) of maize were detected. Chlorophyll content, photosynthetic characteristics (net photosynthetic rate, transpiration rate, stomatal conductance, and intercellular CO2 concentration), and chlorophyll fluorescence parameters in leaves of the inoculated and non-inoculated maize were also determined. Inoculation with G. cylindrosporus significantly increased height, basal diameter, root length, and biomass of maize seedlings under Pb stress. Colonization of G. cylindrosporus improved the efficiency of photosynthesis and altered the translocation and accumulation of Pb in the plants. Although inoculation with G. cylindrosporus increased Pb accumulation in host plants in comparison to non-inoculated plants, the translocation factor of Pb in plant body was significantly decreased. The results indicated that Pb was accumulated mainly in the root system of maize and the phytotoxicity of Pb to the aerial part of the plant was alleviated. The improvement of efficiency of photosynthesis and the decrease of translocation factor of Pb, caused by DSE fungal colonization, were efficient strategies to improve Pb tolerance of host plants.
KeywordChlorophyll Fluorescence Fungal Colonization Growth Indicator Heavy Metal Stress Pb Accumulation Pb Translocation Photosynthetic Characteristics
Subject AreaAgriculture
DOI10.1016/S1002-0160(17)60316-3
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Indexed BySCI
Publication PlaceBEIJING
Language英语
WOS IDWOS:000399261800009
PublisherSCIENCE PRESS
Funding OrganizationNational Natural Science Foundation of China [41671268, 31270639, 31400435]; Program for Changjiang Scholars and Innovative Research Team in University of China [IRT1035]; Hubei Provincial Natural Science Foundation of China [2015CFB596]; Shaanxi Provincial Science and Technology Innovation Project Plan of China [2016KTCL02-07] ; National Natural Science Foundation of China [41671268, 31270639, 31400435]; Program for Changjiang Scholars and Innovative Research Team in University of China [IRT1035]; Hubei Provincial Natural Science Foundation of China [2015CFB596]; Shaanxi Provincial Science and Technology Innovation Project Plan of China [2016KTCL02-07]
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Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8008
Collection水保所科研产出--SCI_2017--SCI
Corresponding AuthorTang, M (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.; Tang, M (reprint author), Northwest A&F Univ, Coll Forestry, Yangling 712100, Peoples R China.
Affiliation1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China
2.Wuhan Univ Technol, Sch Chem Chem Engn & Life Sci, Wuhan 430070, Peoples R China
3.Northwest A&F Univ, Coll Forestry, Yangling 712100, Peoples R China
Recommended Citation
GB/T 7714
Ban Yihui,Xu Zhouying,Yang Yurong,et al. Effect of Dark Septate Endophytic Fungus Gaeumannomyces cylindrosporus on Plant Growth, Photosynthesis and Pb Tolerance of Maize (Zea mays L.)[J]. PEDOSPHERE,2017,27(2):283-292.
APA Ban Yihui.,Xu Zhouying.,Yang Yurong.,Zhang Haihan.,Chen Hui.,...&Tang, M .(2017).Effect of Dark Septate Endophytic Fungus Gaeumannomyces cylindrosporus on Plant Growth, Photosynthesis and Pb Tolerance of Maize (Zea mays L.).PEDOSPHERE,27(2),283-292.
MLA Ban Yihui,et al."Effect of Dark Septate Endophytic Fungus Gaeumannomyces cylindrosporus on Plant Growth, Photosynthesis and Pb Tolerance of Maize (Zea mays L.)".PEDOSPHERE 27.2(2017):283-292.
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