The salinity tolerance mechanisms of Aeluropus species include cellular, organizational, and whole plant adaptations, such as ion compartmentation, presence of salt glands on the leaves, ion exclusion
at the root, and ion partitioning in divergent organs.
Ion exclusion uses several different separation modes (gel filtration, ion exchange, and reversed phase) to separate compounds of interest.
The current ion exclusion HPLC method is a multimodal separation, so there are significant limitations on increasing throughput of the method.
In their research, the scientists used a Bio-Rad ion exclusion
column, Aminex HPX 87H (300 X 7.
Termed ion-moderated partitioning, this unique process enables these resins to separate compounds via multiple modes of interaction, involving a combination of ion exclusion, ion exchange, ligand exchange, size exclusion, reversed phase and normal phase partitioning.
The HPX-87H columns separate organic acids using primarily the ion exclusion and reversed phase mechanisms.
These include enhanced carbon inputs, root ion exchange and ion exclusion
mechanisms, root exudates, and radial oxygen diffusion from roots (Armstrong 1975); hydraulic redistribution of soil water (Caldwell and Richards 1989; Dawson 1993; Burgess et al.
7 or above (Table 2), indicating the importance of shoot saline ion exclusion
as a salinity tolerance mechanism in Chloridoid grasses.
Prevail Carbohydrate ES HPLC Columns offer performance superior to silica-based amino columns and ion exclusion
1985), ion exclusion
at the root cortex (Leonard, 1983), ion reabsorption by xylem parenchyma cells (Yeo et al.