In this research basic data for all further studies on plant and soil microbial response to specific environment at natural CO2 springs in Stavešinci (NE Slovenia) has been established. It has been shown that environmental factors in such systems are very specific and spatially variable (extremely high soil CO2 concentration and consequently low O2 availability) and thus demand special care in experimental planning and interpretation of results, as well as recording of all relevant factors and their co-variance.
COBISS.SI-ID: 5828217
In the study, we assessed root respiratory response in roots of maize exposed to mild short-term hypoxia (O2 deficit). Plants responded to the treatment with an increased portion of newly formed nodal roots. Increased root porosity (aerenchyma formation) was observed in all root types, the increase was higher in nodal roots. Aerenchyma formation could enable survival of plants and arbuscular mycorrhizal fungi (aerobes) in natural CO2 spring areas, where due to high CO2, O2 levels can reach hypoxia. In addition, vertical shifts in O2 are possible and thus influence on soil microflora.
COBISS.SI-ID: 5612153
The paper reports on the results on the physiological responses of the above ground (photosynthesis, respiration, stomatal response) and belowground (root respiration, aerenchyma formation) plant response to long-term elevated CO2 concentrations in the area of natural CO2 springs Stavešinci (NE Slovenia).
COBISS.SI-ID: 24311513
In this study we showed that photosynthesis and growth of plants exposed to a elevated CO2 regime in mofette areas can be drastically influenced by high CO2.. Good background data on plant physiology in this ecosystem can serve as good link that connects aboveground and belowground responses of biota, present in this environment. It is well known that arbuscular mycorrhizal fungi fully depend on plant assimilated carbon and can use a significant amount of it (up to 30%).
COBISS.SI-ID: 5166201