dc.creator | Zhang, Z. | |
dc.creator | Tariq, A. | |
dc.creator | Zeng, F. | |
dc.creator | Chai, X. | |
dc.creator | Graciano, Corina | |
dc.date.accessioned | 2022-02-25T19:10:29Z | |
dc.date.accessioned | 2022-10-15T14:41:24Z | |
dc.date.available | 2022-02-25T19:10:29Z | |
dc.date.available | 2022-10-15T14:41:24Z | |
dc.date.created | 2022-02-25T19:10:29Z | |
dc.date.issued | 2020-10 | |
dc.identifier | Zhang, Z.; Tariq, A.; Zeng, F.; Chai, X.; Graciano, Corina; Involvement of soluble proteins in growth and metabolic adjustments of drought-stressed Calligonum mongolicum seedlings under nitrogen addition; Wiley Blackwell Publishing, Inc; Plant Biology; 23; 1; 10-2020; 32-43 | |
dc.identifier | 1435-8603 | |
dc.identifier | http://hdl.handle.net/11336/152773 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/4398059 | |
dc.description.abstract | The planting of seedlings is the most effective measure for vegetation restoration. However, this practice is challenging in desert ecosystems where water and nutrients are scarce. Calligonum mongolicum is a sand-fixing pioneer shrub species, and its adaptive strategy for nitrogen (N) deposition and drought is poorly understood. Thus, in a pot experiment, we studied the impacts of four N levels (0, 3, 6, 9 gN·m−2·year−1) under drought or a well-watered regime on multiple eco-physiological responses of 1-year-old C. mongolicum seedlings. Compared to well-watered conditions, drought considerably influenced seedling growth by impairing photosynthesis, osmolyte accumulation and activity of superoxide dismutase and enzymes related to N metabolism. Nitrogen addition improved the productivity of drought-stressed seedlings, as revealed by increased water use efficiency, enhanced superoxide dismutase and nitrite reductase activity and elevated N and phosphorus (P) levels in seedlings. Nevertheless, the addition of moderate to high levels of N (6–9 gN·m−2·year−1) impaired net photosynthesis, osmolyte accumulation and nitrate reductase activity. N addition and water regimes did not markedly change the N:P ratios of aboveground parts; while more biomass and nutrients were allocated to fine roots to assimilate the insufficient resources. Soluble protein in assimilating shoots might play a vital role in adaptation to the desert environment. The response of C. mongolicum seedlings to N addtion and drought involved an interdependency between soluble protein and morphological, physiological and biochemical processes. These findings provide an important reference for vegetation restoration in arid lands under global change. | |
dc.language | eng | |
dc.publisher | Wiley Blackwell Publishing, Inc | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1111/plb.13190 | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/plb.13190 | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.subject | ELEMENTAL STOICHIOMETRY | |
dc.subject | GLOBAL CHANGE | |
dc.subject | N ADDITION | |
dc.subject | NETWORK ANALYSIS | |
dc.subject | RESOURCE ALLOCATION | |
dc.title | Involvement of soluble proteins in growth and metabolic adjustments of drought-stressed Calligonum mongolicum seedlings under nitrogen addition | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:ar-repo/semantics/artículo | |
dc.type | info:eu-repo/semantics/publishedVersion | |