NaCl salinity-induced changes in water status, ion contents and photosynthetic properties of Shepherdia argentea (Pursh) Nutt. seedlings
Two-year old seedlings of Silver buffaloberry (Shepherdia argentea (Pursh) Nutt.) were exposed to NaCl salinity (0, 200, 400 and 600 mmol/l) for 30 days. Leaf water potential (Ψw), chlorophyll contents (Chl a, b, and a + b) and K+ content decreased with an increase in salinity. Relative water conten...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2010-07-01
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| Series: | Plant, Soil and Environment |
| Subjects: | |
| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-201007-0004_nacl-salinity-induced-changes-in-water-status-ion-contents-and-photosynthetic-properties-of-shepherdia-argente.php |
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| author | J. Qin W.Y. Dong K.N. He Y. Yu G.D. Tan L. Han M. Dong Y.Y. Zhang D. Zhang A.Z. Li Z.L. Wang |
| author_facet | J. Qin W.Y. Dong K.N. He Y. Yu G.D. Tan L. Han M. Dong Y.Y. Zhang D. Zhang A.Z. Li Z.L. Wang |
| author_sort | J. Qin |
| collection | DOAJ |
| description | Two-year old seedlings of Silver buffaloberry (Shepherdia argentea (Pursh) Nutt.) were exposed to NaCl salinity (0, 200, 400 and 600 mmol/l) for 30 days. Leaf water potential (Ψw), chlorophyll contents (Chl a, b, and a + b) and K+ content decreased with an increase in salinity. Relative water content (RWC) declined significantly with400 and 600 mmol/l NaCl. However, salinity induced an excessive accumulation of Na+ in the leaves of plants. Light responses of photosynthesis showed that net photosynthetic rate (PN) values were continuously raised with the increase of photosynthetic photon flux density (PPFD) at all salinity levels and plants treated with 600 mmol/l salinity suffered from photoinhibition with the lowest PN values. The reduction of PN and stomatal conductance (gs) associated with a sharp increase of intercellular CO2 concentration (Ci) in the leaves at 600 mmol/l salt-treated plants showed that non-stomatal limitations might have prevailed over stomatal limitations under severe saline conditions, due to severe cellular dehydration, inhibited synthesis of chlorophyll and ionic imbalance and toxicity. It is concluded that S. argentea possesses high salt tolerance capacity and can be widely cultivated in salt-affected areas. |
| first_indexed | 2024-04-10T08:11:47Z |
| format | Article |
| id | doaj.art-3a82efb247694b829ce61aaeed8fdbfa |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:11:47Z |
| publishDate | 2010-07-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-3a82efb247694b829ce61aaeed8fdbfa2023-02-23T03:45:38ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682010-07-0156732533210.17221/209/2009-PSEpse-201007-0004NaCl salinity-induced changes in water status, ion contents and photosynthetic properties of Shepherdia argentea (Pursh) Nutt. seedlingsJ. Qin0W.Y. Dong1K.N. He2Y. Yu3G.D. Tan4L. Han5M. Dong6Y.Y. Zhang7D. Zhang8A.Z. Li9Z.L. Wang10College of Soil and Water Conservation, Beijing Forestry University, Beijing, P.R. ChinaCollege of Forestry, Beijing Forestry University, Beijing, P.R. ChinaCollege of Soil and Water Conservation, Beijing Forestry University, Beijing, P.R. ChinaCollege of Resource and Environment, Central South University of Forest and Technology, Changsha, P.R. ChinaCollege of Soil and Water Conservation, Beijing Forestry University, Beijing, P.R. ChinaCollege of Soil and Water Conservation, Beijing Forestry University, Beijing, P.R. ChinaCollege of Soil and Water Conservation, Beijing Forestry University, Beijing, P.R. ChinaCollege of Soil and Water Conservation, Beijing Forestry University, Beijing, P.R. ChinaCollege of Soil and Water Conservation, Beijing Forestry University, Beijing, P.R. ChinaCollege of Soil and Water Conservation, Beijing Forestry University, Beijing, P.R. ChinaQinghai Academy of Agriculture and Forestry, Xining, P.R. ChinaTwo-year old seedlings of Silver buffaloberry (Shepherdia argentea (Pursh) Nutt.) were exposed to NaCl salinity (0, 200, 400 and 600 mmol/l) for 30 days. Leaf water potential (Ψw), chlorophyll contents (Chl a, b, and a + b) and K+ content decreased with an increase in salinity. Relative water content (RWC) declined significantly with400 and 600 mmol/l NaCl. However, salinity induced an excessive accumulation of Na+ in the leaves of plants. Light responses of photosynthesis showed that net photosynthetic rate (PN) values were continuously raised with the increase of photosynthetic photon flux density (PPFD) at all salinity levels and plants treated with 600 mmol/l salinity suffered from photoinhibition with the lowest PN values. The reduction of PN and stomatal conductance (gs) associated with a sharp increase of intercellular CO2 concentration (Ci) in the leaves at 600 mmol/l salt-treated plants showed that non-stomatal limitations might have prevailed over stomatal limitations under severe saline conditions, due to severe cellular dehydration, inhibited synthesis of chlorophyll and ionic imbalance and toxicity. It is concluded that S. argentea possesses high salt tolerance capacity and can be widely cultivated in salt-affected areas.https://pse.agriculturejournals.cz/artkey/pse-201007-0004_nacl-salinity-induced-changes-in-water-status-ion-contents-and-photosynthetic-properties-of-shepherdia-argente.phpleaf water potentialion accumulationchlorophyll contentsnet photosynthetic ratenon-stomatal limitationssalinity |
| spellingShingle | J. Qin W.Y. Dong K.N. He Y. Yu G.D. Tan L. Han M. Dong Y.Y. Zhang D. Zhang A.Z. Li Z.L. Wang NaCl salinity-induced changes in water status, ion contents and photosynthetic properties of Shepherdia argentea (Pursh) Nutt. seedlings Plant, Soil and Environment leaf water potential ion accumulation chlorophyll contents net photosynthetic rate non-stomatal limitations salinity |
| title | NaCl salinity-induced changes in water status, ion contents and photosynthetic properties of Shepherdia argentea (Pursh) Nutt. seedlings |
| title_full | NaCl salinity-induced changes in water status, ion contents and photosynthetic properties of Shepherdia argentea (Pursh) Nutt. seedlings |
| title_fullStr | NaCl salinity-induced changes in water status, ion contents and photosynthetic properties of Shepherdia argentea (Pursh) Nutt. seedlings |
| title_full_unstemmed | NaCl salinity-induced changes in water status, ion contents and photosynthetic properties of Shepherdia argentea (Pursh) Nutt. seedlings |
| title_short | NaCl salinity-induced changes in water status, ion contents and photosynthetic properties of Shepherdia argentea (Pursh) Nutt. seedlings |
| title_sort | nacl salinity induced changes in water status ion contents and photosynthetic properties of shepherdia argentea pursh nutt seedlings |
| topic | leaf water potential ion accumulation chlorophyll contents net photosynthetic rate non-stomatal limitations salinity |
| url | https://pse.agriculturejournals.cz/artkey/pse-201007-0004_nacl-salinity-induced-changes-in-water-status-ion-contents-and-photosynthetic-properties-of-shepherdia-argente.php |
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