Cellular Mechanisms of Salt Tolerance in Plant Cells

Binzel, Marla L.; Reuveni, Moshe

doi:10.1002/9780470650561.ch2

Cited by 17 publications

(10 citation statements)

References 151 publications

(224 reference statements)

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“…Therefore, the adaptive mechanism of plants treated with 10 -6 M SA for salinity may be explained in part by more selective accumulation of nutrients, especially K + . These results are in agreement with the findings of Binzel and Reuveni (1994), Güneş et al (2005) and Al-Hakimi and Hamada (2001) who reported that salt-tolerant plants exhibit greater K + /Na + ratio than susceptible plants. In our study selectivity in ions accumulation was also connected with higher tolerance to salt stress caused by SA application.…”

Section: Discussionsupporting

confidence: 93%

Alleviation Of Nacl Stress In Summer Squash ‘Eskandrani’ By Foliar Application Of Salicylic Acid

Elwan

El-Shatoury

2014

Journal of Horticultural Research

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The experiment was performed to assess the possibility of overcoming NaCl salinity stress by foliar sprays of summer squash ‘Eskandrani’ with salicylic acid (SA) at the concentration of 10-6 M. NaCl treatment caused reduction of shoot fresh weight, leaf number per plant, fruit yield, concentrations of potassium in aerial parts, and the concentration of chlorophyll in leaves. Plants grown under salt stress conditions had higher shoot sodium concentrations than plants untreated with NaCl. Foliar application of SA ameliorated partly the negative effect of NaCl treatment. The beneficial effect of SA was also observed in non-stressed plants, increasing the shoot potassium accumulation and leaf photosynthetic pigments status, and decreasing sodium accumulation in shoots.

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Section: Discussionsupporting

confidence: 93%

Alleviation Of Nacl Stress In Summer Squash ‘Eskandrani’ By Foliar Application Of Salicylic Acid

Elwan

El-Shatoury

2014

Journal of Horticultural Research

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“…Most of the cultivated plants are sensitive to salt-stress, in which NaCl salinity has harmful effects on growth and development of plants. The reduction in germination process relies on salinity may be related to its negative effect on the physiological processes influencing seed germination [8,13]. Andriolo et al [6] reported that salinity is the main cause of reduction the percentage and homogeneity of germination and dry weight of plants.…”

Section: Discussionmentioning

confidence: 99%

“…Sterol regulates the activity of the Na + /K + -ATPase in plant cells [23]. The osmotic effect resulting from soil salinity may cause disturbances in water balance of plant and inhibiting growth as well provoking stomata closure and reducing photosynthesis [3,13]. Plants respond by means of osmotic adjustment, normally by increasing the concentrations of Na + , although such accumulation of inorganic ions may produce important toxic effects and cell damage and inactivate both photosynthetic and respiratory electron transport [43,44].…”

Section: Discussionmentioning

confidence: 99%

Physico-chemical changes in karkade (Hibiscus sabdariffa L.) seedlings responding to salt stress

Galal

2017

Acta Biologica Hungarica

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Salinity is one of the major abiotic stress factors affecting series of morphological, physiological, metabolic and molecular changes in plant growth. The effect of different concentrations (0, 25, 50, 100 and 150 mM) of NaCl on the vegetative growth and some physiological parameters of karkade (Hibiscus sabdariffa var. sabdariffa) seedling were investigated. NaCl affected the germination rate, delayed emergence and retarded vegetative growth of seedlings. The length of seedling as well as the leaf area was significantly reduced. The fresh weight remained lower in NaCl treated seedlings compared to control. NaCl at 100 and 150 mM concentrations had significant effect on the dry matter contents of the treated seedlings. The chloroplast pigments in the treated seedlings were affected, suggesting that the NaCl had a significant effect on the chlorophyll and carotenoid biosynthesis. The results showed that the salt treatments induced an increase in proline concentration of the seedlings. The osmotic potential (ψs) of NaCl treated seedlings decreased with increasing NaCl concentrations. Salt treatments resulted in dramatic quantitative reduction in the total sterol percent compared with control ones. Salt stress resulted in increase and decrease of Na and K ions, respectively. NaCl salinity increased lipid peroxidation. SDS-PAGE was used to evaluate protein pattern after applying salt stress. High molecular weight proteins were intensified, while low molecular weight proteins were faint. NaCl at 100 and 150 mM concentration distinguished with new protein bands. Salt stress induced a new peroxidase bands and increased the band intensity, indicating the protective role of peroxidase enzyme.

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“…Most of the soils around the world are affected by the presence of salts that can promote salt stress on plants and limit production (Rahdari and Hoseini 2011). Binzel and Reuveni (1994) revealed that the salt-affected area is almost three times larger than the arable agricultural land. Salinity is one of the most severe abiotic stresses faced by plants, because, besides reducing the osmotic potential of the soil, the salinity stress is also closely connected to the osmotic stress and the boosting of the hiperionic condition on plants (Munns 2011).…”

Section: Introductionmentioning

confidence: 99%