Arbuscular mycorrhizal symbiosis regulates hormone and osmotic equilibrium of Lycium barbarum L. under salt stress
文献类型： 外文期刊
作者： Liu, H. G. 1 ; Wang, Y. J. 2 ; Hart, M. 3 ; Chen, H. 4 ; Tang, M. 4 ;
作者机构： 1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Ningxia Acad Agr & Forestry Sci, Natl Wolfberry Engn Res Ctr, Ningxia 750002, Peoples R China
3.Univ British Columbia Okanagan, Biol, Kelowna, BC V1V 1V7, Canada
4.Northwest A&F Univ, Coll Forestry, Yangling 712100, Shaanxi, Peoples R China
关键词： ABA;arbuscular mycorrhiza;IAA;photosynthesis;salt tolerance
期刊名称：MYCOSPHERE （ 影响因子：4.211； 五年影响因子：2.866 ）
ISSN： 2077-7000
年卷期： 2016 年 7 卷 6 期
页码：
收录情况： SCI
摘要： Arbuscular mycorrhizal fungi (AMF) enhance salt tolerance of host plants via multiple mechanisms, but their effect on hormone mediated tolerance is unclear. The influence of AMF on hormone regulation and osmotic adjustment of Lycium barbarum L. (Goji) under salt stress was evaluated. AMF enhanced indol-3-acetic acid (IAA) in leaves and roots and abscisic acid (ABA) in leaves of Goji growing in saline soils. These changes resulted in enhanced osmotic adjustment in mycorrhizal plants, leading to higher leaf water potential despite saline conditions. AM symbiosis improved photosynthesis under 100 mM salt level and stimulated the growth of Goji plants, especially for roots under salt stress. These results enhance our understanding on how AMF contribute to salt tolerance of host plants via hormone regulation and highlight its promising role for sustaining crop production as bio-ameliorator.
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