Long-term culture modifies the salt responses of callus lines of salt-tolerant and salt-sensitive tomato species

Rus, Ana; Ríos, Segundo; Olmos, Enrique; Santa-Cruz, Ana; Bolarín, Maria C.

doi:10.1016/s0176-1617(00)80026-7

Cited by 31 publications

(19 citation statements)

References 25 publications

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“…Salinity is considered a major factor in limiting plant growth and crop productivity, and salinisation of irrigated and surrounding areas in the arid tropics and sub-tropics has not been diminished. On the contrary, it continues to increase in arid and semi-arid regions (Rus et al, 2000). It is estimated that about a third of the world's cultivated land is affected by salinity (Perez-Alfocea et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

Improving the Salinity Tolerance in Wheat Plants Using Salicylic and Ascorbic Acids

Desoky¹,

Merwad²

2015

JAS

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A pot experiment was conducted during 2013/2014 and 2014/2015 successive growing winter seasons under greenhouse conditions at the Experimental Station, Fac. of Agric., Zagazig Univ., Sharkia Governorate, Egypt to evaluate the response of wheat plants (Triticum aestivum L.) cv. Sakha 93 to different levels of foliar spray of some antioxidant tested substances as ascorbic and salicylic acids at a rate of 0.1 and 0.2%, with respect to vegetative criteria, some physiological properties i.e. phenol components, proline concentration, yield components, NPK-uptake as well as anatomical structure of flag leaf blade grown under salt stress conditions, 3.21 dSm -1 , 6.32 dSm -1 and 10.65 dSm -1 of soil salt. Data indicated that, all studied vegetative criteria of wheat plants, decreased under salt stress condition. Spraying antioxidant substances seemed to partially overcome the harmful effects of salt stress on vegetative criteria. Significant increase in the concentrations of phenols component and proline concentration in response to salt stress treatments. Also, application of tested antioxidant significantly reduced phenols component and increase proline concentration in leaves under water stress condition. Dry matter of straw and grain and yield quality, straw and grains N, P and K-uptake were decreased with increasing the soil salinity level. This trend was found true under all foliar sprays with salicylic and ascorbic acids at different rates. The highest values of straw and grain yield, biological yield, weight of 1000 grain, protein content and yield efficiency, straw and grains N, P and K-uptake of wheat plants occurred with ascorbic acid 0.2% "AA2" treatment followed by ascorbic acid 0.1% "AA1", salicylic acid 0.2% "SA2", salicylic acid 0.1% "SA1" and untreated plants that descending order in the two seasons.

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Section: Introductionmentioning

confidence: 99%

Improving the Salinity Tolerance in Wheat Plants Using Salicylic and Ascorbic Acids

Desoky¹,

Merwad²

2015

JAS

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“…Soil and water salinity in the arid regions are continuously increasing (Rus et al, 2002). Globally, more than 770,000 km 2 of the lands are affected by secondary salinization, 20 % of the irrigated areas and about 2 % of the agricultural lands (FAO, 2000).…”

Section: Introductionmentioning

confidence: 99%

Effects of Saline Water on Tomato Under Subsurface Drip Irrigation: Nutritional and Foliar Aspects

Kahlaoui

Hachicha

Rejeb

et al. 2011

J. Soil Sci. Plant Nutr.

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A field experiment on the effects of drip irrigation (DI) and subsurface drip irrigation (SDI) with saline water (6.57 dS m -1 ) on three tomato cultivars (Lycopersicon esculentum Mill., cvs. Río Tinto, Río Grande and Nemador) was carried out with the purpose to quantify physiological responses. The aim was to improve irrigation water management under saline conditions of Tunisia. The trial was established in a siltclayey soil with three regimes of irrigation: 100 %, 85 % and 70 % of crop water requirement. Results evidenced a significant difference between the two irrigation systems for the three cultivars. Growth parameters such as leaf area, chlorophyll content and mineral composition of leaves, petioles, stems and roots were affected significantly by the different treatments, particularly for Río Tinto and Nemador, being Río Grande the more adapted. The fruit was the organ less affected. Strong accumulation of Na + and Cl -accompanied a reduction in Ca 2+ , K + , Mg 2+ and P content in the case of DI. The distribution of these last necessary elements for plants nutrition under a strong accumulation of Na + and Cl -depends on the cultivar and changes from one organ to another. SDI can be included as an effective option for tomato production in Tunisia.

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“…In the absence of stress, RGR decreased significantly among the 1 st , the 2 nd and the 3 rd month of salt stress exposure. This growth reduction could be attributed partially to the high osmotic pressure of the MS basal medium, which might produce an osmotic stress (Rus et al, 2000;Lutts et al, 1996). Under salt stress conditions, the calli obtained from both sugarcane cvs exhibited the same general tendency in response to NaCl concentration and to the duration of salt stress exposure.…”

Section: Discussionmentioning

confidence: 96%

Callus growth and ion composition in response to long-term NaCl-induced stress in two sugarcane (Saccharum sp.) cultivars

Errabii¹,

Gandonou²,

Bouhdid³

et al. 2017

Int. J. Biotechnol. Mol. Biol. Res.

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In this work, the effect of different concentrations of NaCl on calli induced from two sugarcane cultivars NCo310 and CP59-73 was studied. Growth and ion concentrations (Na + , Cl -, K + and Ca 2+ ) of calli were determined after 1, 2 and 3 months of stress with the objective to understand the cellular mechanisms operating in salt stress tolerance and to determine the implication of inorganic fraction in salt tolerance in sugarcane cultivars. A negative effect of the NaCl concentration and the duration of stress exposure on the callus rate growth was observed in both cultivars and with more extent in CP59-73 cv. Results showed an increase in Na + and Cl -and a decrease in K + and Ca 2+ concentrations after 1, 2 and 3 months of salt stress exposure. It also showed that resistant cv. NCo310 stressed calli accumulated less Na + and retained more K + and Ca 2+ than CP59-73 calli. Cl -appeared to be involved in osmotic adjustment since the resistant cv. NCo310 stressed calli accumulated more Cl -than CP59-73 ones. These results suggested that the resistance to salinity in sugarcane is associated with a high K + , Ca 2+ and Cl -concentrations and a low Na + concentration within cells.Key words: sugarcane (Saccharum sp.), salt stress, ion uptake, callus growth, long-term stress exposure. INTRODUCTIONSalinity is a significant factor that affects crop production and agricultural sustainability worldwide, since about 10% of the land surface and 50% of all irrigated land in the world are prone to salinity (Flowers et al., 2010). Salt stress affects several aspects of plant physiology by its osmotic and ionic components (Munns and Tester, 2008 However, the operating mechanisms remains till now poorly understood and it not easy to differentiate between the effects due to the osmotic component and those due to the ionic one (Gandonou et al., 2011). Adaptation to salt stress involves several mechanisms that help plants to adjust osmotically, to maintain a low cytoplasmic concentration of toxic ions and a high concentration of essential minerals (Munns, 2005). It is well known that cell culture techniques, including callus culture constitutes an important tool to investigate the response to salts, such as NaCl, of several plants at cellular level (Perez-Alfocea et al., 1994;Lutts et al., 1996;Ehsanpour and Fatahian, 2003;Gandonou et al., 2011) and therefore, to understand the cellular mechanisms involved in the salt tolerance and/or sensitivity (Tal, 1983;Gandonou et al., 2011). As for sugarcane, there were a few studies on the implication of inorganic solutes to osmotic adjustment and salt tolerance at the cell level. In a previous study, it was shown that ions toxicity was implied in salt effect at cellular level and that K + ion plays a crucial role in sugarcane salt-tolerance (Gandonou et al., 2005a). In the present investigation, the effects of different NaCl concentrations (0, 50, 100 and 150 mM) and the duration of stress exposure on callus growth and ion concentration in two sugarcane genotypes, CP59-73 and NCo310, at t...

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Long-term culture modifies the salt responses of callus lines of salt-tolerant and salt-sensitive tomato species

Cited by 31 publications

References 25 publications

Improving the Salinity Tolerance in Wheat Plants Using Salicylic and Ascorbic Acids

Improving the Salinity Tolerance in Wheat Plants Using Salicylic and Ascorbic Acids

Effects of Saline Water on Tomato Under Subsurface Drip Irrigation: Nutritional and Foliar Aspects

Callus growth and ion composition in response to long-term NaCl-induced stress in two sugarcane (Saccharum sp.) cultivars

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