Phenotypic plasticity and water flux rates of Citrus root orders under salinity
| Autor: | Tanya Gendler, Eran Raveh, Boris Rewald, Shimon Rachmilevitch, Jhonathan E. Ephrath |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Citrus
Morphology (linguistics) Physiology Flux Plant Science Root system root architecture Sodium Chloride Biology phenotypic plasticity Plant Roots NaCl accumulation Botany salt stress Citrus volkameriana Phenotypic plasticity biomass miniature depletion chambers root order Phenology Water Xylem Research Papers Salinity Kinetics Horticulture Phenotype water flux density Anatomy Rootstock |
| Zdroj: | Journal of Experimental Botany |
| ISSN: | 1460-2431 0022-0957 |
| Popis: | Knowledge about the root system structure and the uptake efficiency of root orders is critical to understand the adaptive plasticity of plants towards salt stress. Thus, this study describes the phenological and physiological plasticity of Citrus volkameriana rootstocks under severe NaCl stress on the level of root orders. Phenotypic root traits known to influence uptake processes, for example frequency of root orders, specific root area, cortical thickness, and xylem traits, did not change homogeneously throughout the root system, but changes after 6 months under 90 mM NaCl stress were root order specific. Chloride accumulation significantly increased with decreasing root order, and the Cl(-) concentration in lower root orders exceeded those in leaves. Water flux densities of first-order roots decreased to |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|