Evolutionary origins of abnormally large shoot sodium accumulation in nonsaline environments within the Caryophyllales.

ABSTRACT: The prevalence of sodium (Na)-'hyperaccumulator' species, which exhibit abnormally large shoot sodium concentrations ([Na]_shoot ) when grown in nonsaline environments, was investigated among angiosperms in general and within the Caryophyllales order in particular. Shoot Na concentrations were determined in 334 angiosperm species, representing 35 orders, grown hydroponically in a nonsaline solution. Many Caryophyllales species exhibited abnormally large [Na]_shoot when grown hydroponically in a nonsaline solution. The bimodal distribution of the log-normal [Na]_shoot of species within the Caryophyllales suggested at least two distinct [Na]_shoot phenotypes within this order. Mapping the trait of Na-hyperaccumulation onto the phylogenetic relationship

SUBMITTER: White PJ 

PROVIDER: S-EPMC5396351 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature