{"type": "FeatureCollection", "features": [{"id": "10.1023/a:1004233920896", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:19Z", "type": "Journal Article", "description": "The effect of elevated CO2 on the carbon and nitrogen distribution within perennial ryegrass (L. perenne L.) and its influence on belowground processes were investigated. Plants were homogeneously 14C-labelled in two ESPAS growth chambers in a continuous 14C-CO2 atmosphere of 350 and 700 \u03bcL L-1 CO2 and at two soil nitrogen regimes, in order to follow the carbon flow through all plant and soil compartments. After 79 days, elevated CO2 increased the total carbon uptake by 41 and 21% at low (LN) and high nitrogen (HN) fertilisation, respectively. Shoot growth remained unaffected, whereas CO2 enrichment stimulated root growth by 46% and the root/soil respiration by 111%, irrespective of the nitrogen concentration. The total 14C-soil content increased by 101 and 28% at LN and HN, respectively. The decomposition of the native soil organic matter was not affected either by CO2 or by the nitrogen treatment. Elevated CO2 did not change the total nitrogen uptake of the plant either at LN or at HN. Both at LN and HN elevated CO2 significantly increased the total amount of nitrogen taken up by the roots and decreased the absolute and relative amounts translocated to the shoots. The amount of soil nitrogen immobilised by micro-organisms and the size of the soil microbial biomass were not affected by elevated CO2, whereas both were significantly increased at the higher soil N content. Most striking was the 88% increase in net carbon input into the soil expressed as: 14C-roots plus total 14C-soil content minus the 12C-carbon released by decomposition of native soil organic matter. The net carbon input into the soil at ambient CO2 corresponded with 841 and 1662 kg ha-1 at LN and HN, respectively. Elevated CO2 increased these amounts with an extra carbon input of 950 and 1056 kg ha-1. Combined with a reduced decomposition rate of plant material grown at elevated CO2 this will probably lead to carbon storage in grassland soils resulting in a negative feed back on the increasing CO2 concentration of the atmosphere.", "keywords": ["Nitrogen partitioning", "Lolium perenne", "Mineralisation", "Soil carbon dynamics", "Microbial biomass", "Elevated CO2", "Carbon partitioning"], "contacts": [{"organization": "van Ginkel, J.H., Gorissen, A., van Veen, J.A.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1023/a:1004233920896"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1023/a:1004233920896", "name": "item", "description": "10.1023/a:1004233920896", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1023/a:1004233920896"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1997-01-01T00:00:00Z"}}, {"id": "10.1111/nph.18873", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:24Z", "type": "Journal Article", "created": "2023-03-13", "title": "Effective root responses to salinity stress include maintained cell expansion and carbon allocation", "description": "Summary

Acclimation of root growth is vital for plants to survive salt stress. Halophytes are great examples of plants that thrive even under severe salinity, but their salt tolerance mechanisms, especially those mediated by root responses, are still largely unknown.

We compared root growth responses of the halophyteSchrenkiella parvulawith its glycophytic relative speciesArabidopsis thalianaunder salt stress and performed transcriptomic analysis ofS.\uffc2\uffa0parvularoots to identify possible gene regulatory networks underlying their physiological responses.

Schrenkiella parvularoots do not avoid salt and experience less growth inhibition under salt stress. Salt\uffe2\uff80\uff90induced abscisic acid levels were higher inS.\uffc2\uffa0parvularoots compared with Arabidopsis. Root transcriptomic analysis ofS.\uffc2\uffa0parvularevealed the induction of sugar transporters and genes regulating cell expansion and suberization under salt stress.14C\uffe2\uff80\uff90labeled carbon partitioning analyses showed thatS.\uffc2\uffa0parvulacontinued allocating carbon to roots from shoots under salt stress while carbon barely allocated to Arabidopsis roots. Further physiological investigation revealed thatS.\uffc2\uffa0parvularoots maintained root cell expansion and enhanced suberization under severe salt stress.

In summary, roots ofS.\uffc2\uffa0parvuladeploy multiple physiological and developmental adjustments under salt stress to maintain growth, providing new avenues to improve salt tolerance of plants using root\uffe2\uff80\uff90specific strategies.

Acclimation of root growth is vital for plants to survive salt stress. Halophytes are great examples of plants that thrive even under severe salinity, but their salt tolerance mechanisms, especially those mediated by root responses, are still largely unknown.

We compared root growth responses of the halophyte Schrenkiella parvula with its glycophytic relative species Arabidopsis thaliana under salt stress and performed transcriptomic analysis of S.\uffc2\uffa0parvula roots to identify possible gene regulatory networks underlying their physiological responses.

Schrenkiella parvula roots do not avoid salt and experience less growth inhibition under salt stress. Salt\uffe2\uff80\uff90induced abscisic acid levels were higher in S.\uffc2\uffa0parvula roots compared with Arabidopsis. Root transcriptomic analysis of S.\uffc2\uffa0parvula revealed the induction of sugar transporters and genes regulating cell expansion and suberization under salt stress. 14 C\uffe2\uff80\uff90labeled carbon partitioning analyses showed that S.\uffc2\uffa0parvula continued allocating carbon to roots from shoots under salt stress while carbon barely allocated to Arabidopsis roots. Further physiological investigation revealed that S.\uffc2\uffa0parvula roots maintained root cell expansion and enhanced suberization under severe salt stress.

In summary, roots of S.\uffc2\uffa0parvula deploy multiple physiological and developmental adjustments under salt stress to maintain growth, providing new avenues to improve salt tolerance of plants using root\uffe2\uff80\uff90specific strategies.