Details
| Original language | English |
|---|---|
| Pages (from-to) | 306-314 |
| Number of pages | 9 |
| Journal | Plant physiology and biochemistry |
| Volume | 141 |
| Early online date | 31 May 2019 |
| Publication status | Published - Aug 2019 |
Abstract
Prosopis strombulifera (Lam.) Benth. is a halophytic shrub found in highly saline soils in Argentina, with high tolerance against NaCl but strong growth inhibition by Na2SO4. In the present study, the differences in the physiological responses caused by these salts and an iso-osmotic combination thereof on photosynthesis, mineral composition and metabolism were analyzed. Na2SO4 treated plants were the most affected by salinity, showing a significant decrease in several photosynthetic parameters. Proline and cysteine accumulated significantly in the plants in response to salt stress. These results show by the first time that the SO4 2− anion is triggering damage in the photosynthetic apparatus and consequently affecting the photosynthetic process, which may explain the strong growth inhibition in these plants at high salinity. Moreover, the SO4 2− anion provoke challenges in the incorporation of nutrients, decreasing the levels of K, Ca, P and Mg, and inducing a strong antioxidant activity in P. strombulifera.
Keywords
- Antioxidant capacity, Chlorophyll fluorescence, Halophytes, Mineral composition, NaSO, NaCl
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Physiology
- Biochemistry, Genetics and Molecular Biology(all)
- Genetics
- Agricultural and Biological Sciences(all)
- Plant Science
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In: Plant physiology and biochemistry, Vol. 141, 08.2019, p. 306-314.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Differential effects of NaCl and Na2SO4 on the halophyte Prosopis strombulifera are explained by different responses of photosynthesis and metabolism
AU - Reginato, Mariana A.
AU - Turcios Pantaleón, Ariel Eliseo
AU - Luna, Virginia
AU - Papenbrock, Jutta
N1 - Funding information: This research was supported by the DAAD (German Academic Exchange Service) by funding a research stay for university academics and scientists to Mariana Reginato.
PY - 2019/8
Y1 - 2019/8
N2 - Prosopis strombulifera (Lam.) Benth. is a halophytic shrub found in highly saline soils in Argentina, with high tolerance against NaCl but strong growth inhibition by Na2SO4. In the present study, the differences in the physiological responses caused by these salts and an iso-osmotic combination thereof on photosynthesis, mineral composition and metabolism were analyzed. Na2SO4 treated plants were the most affected by salinity, showing a significant decrease in several photosynthetic parameters. Proline and cysteine accumulated significantly in the plants in response to salt stress. These results show by the first time that the SO4 2− anion is triggering damage in the photosynthetic apparatus and consequently affecting the photosynthetic process, which may explain the strong growth inhibition in these plants at high salinity. Moreover, the SO4 2− anion provoke challenges in the incorporation of nutrients, decreasing the levels of K, Ca, P and Mg, and inducing a strong antioxidant activity in P. strombulifera.
AB - Prosopis strombulifera (Lam.) Benth. is a halophytic shrub found in highly saline soils in Argentina, with high tolerance against NaCl but strong growth inhibition by Na2SO4. In the present study, the differences in the physiological responses caused by these salts and an iso-osmotic combination thereof on photosynthesis, mineral composition and metabolism were analyzed. Na2SO4 treated plants were the most affected by salinity, showing a significant decrease in several photosynthetic parameters. Proline and cysteine accumulated significantly in the plants in response to salt stress. These results show by the first time that the SO4 2− anion is triggering damage in the photosynthetic apparatus and consequently affecting the photosynthetic process, which may explain the strong growth inhibition in these plants at high salinity. Moreover, the SO4 2− anion provoke challenges in the incorporation of nutrients, decreasing the levels of K, Ca, P and Mg, and inducing a strong antioxidant activity in P. strombulifera.
KW - Antioxidant capacity
KW - Chlorophyll fluorescence
KW - Halophytes
KW - Mineral composition
KW - NaSO
KW - NaCl
UR - http://www.scopus.com/inward/record.url?scp=85067173794&partnerID=8YFLogxK
U2 - 10.1016/j.plaphy.2019.05.027
DO - 10.1016/j.plaphy.2019.05.027
M3 - Article
C2 - 31207491
AN - SCOPUS:85067173794
VL - 141
SP - 306
EP - 314
JO - Plant physiology and biochemistry
JF - Plant physiology and biochemistry
SN - 0981-9428
ER -