Abstract:
:The growth response of endophyte-infected (EI) and endophyte-free (EF) tall fescue to salt stress was investigated under two growing systems (hydroponic and soil in pots). The hydroponic experiment showed that endophyte infection significantly increased tiller and leaf number, which led to an increase in the total biomass of the host grass. Endophyte infection enhanced Na accumulation in the host grass and improved Na transport from the roots to the shoots. With a 15 g l(-1) NaCl treatment, the phytoextraction efficiency of EI tall fescue was 2.34-fold higher than EF plants. When the plants were grown in saline soils, endophyte infection also significantly increased tiller number, shoot height and the total biomass of the host grass. Although EI tall fescue cannot accumulate Na to a level high enough for it to be termed a halophyte, the increased biomass production and stress tolerance suggested that endophyte/plant associations had the potential to be a model for endophyte-assisted phytoextraction in saline soils.
journal_name
Int J Phytoremediationjournal_title
International journal of phytoremediationauthors
Yin L,Ren A,Wei M,Wu L,Zhou Y,Li X,Gao Ydoi
10.1080/15226514.2013.773275subject
Has Abstractpub_date
2014-01-01 00:00:00pages
235-46issue
3eissn
1522-6514issn
1549-7879journal_volume
16pub_type
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