Tall fescue endophyte effects on tolerance to water-deficit stress.

ABSTRACT:

Background

The endophytic fungus, Neotyphodium coenophialum, can enhance drought tolerance of its host grass, tall fescue. To investigate endophyte effects on plant responses to acute water deficit stress, we did comprehensive profiling of plant metabolite levels in both shoot and root tissues of genetically identical clone pairs of tall fescue with endophyte (E+) and without endophyte (E-) in response to direct water deficit stress. The E- clones were generated by treating E+ plants with fungicide and selectively propagating single tillers. In time course studies on the E+ and E- clones, water was withheld from 0 to 5 days, during which levels of free sugars, sugar alcohols, and amino acids were determined, as were levels of some major fungal metabolites.

Results

After 2-3

SUBMITTER: Nagabhyru P 

PROVIDER: S-EPMC3848598 | biostudies-literature | 2013 Sep

REPOSITORIES: biostudies-literature