Neotyphodium coenophialum-infected tall fescue and its potential application in the phytoremediation of saline soils.

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 Phytoremediation

authors

Yin L,Ren A,Wei M,Wu L,Zhou Y,Li X,Gao Y

doi

10.1080/15226514.2013.773275

subject

Has Abstract

pub_date

2014-01-01 00:00:00

pages

235-46

issue

3

eissn

1522-6514

issn

1549-7879

journal_volume

16

pub_type

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