Salinity Tolerance in Four Wild Tomato Species using Vegetative Yield-Salinity Response Curves

Bolarín, Maria C.; Fernández, F.; Cruz, V.; Cuartero, J.

doi:10.21273/jashs.116.2.286

Cited by 82 publications

(41 citation statements)

References 15 publications

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“…The cultivated tomato Lycopersicon esculentum is considered to be saltsensitive while its wild relative species L. pennellii has been observed to be more salt tolerant (Bolarin et al 1991, Cuartero et al 1992. The salt tolerance of these two species was based mainly on growth and survival under salt stress (Rush and Epstein 1981).…”

Section: ⎯⎯⎯⎯mentioning

confidence: 99%

Effect of salt stress on lipid peroxidation and superoxide dismutase and peroxidase activities of Lycopersicon esculentum and L. pennellii

2006

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In this study, a relationship between lipid peroxidation, the antioxidant defense system and salt stress in salt-sensitive cultivated tomato (Lycopersicon esculentum) and its salt-tolerant wild relative (L. pennellii) was established. Superoxide dismutase (SOD) activities were significantly higher in the leaves of L. pennellii than those of L. esculentum after 12 and 84 d. POX activity showed a gradual increase in both cultivars under 70 mM NaCl. POX activity in L. pennellii significantly increased after 6 and 84 d whereas showed no remarkable change in leaves of L. esculentum under 140 mM NaCl. A higher salinity tolerance of L. pennellii was also correlated with a lower lipid peroxidation, which might be due to a higher content of antioxidant enzymes studied.Additional key words: antioxidant enzymes, ascorbate peroxidase, glutathione reductase, malondialdehyde, NaCl, tomato. ⎯⎯⎯⎯Salinity in soil and irrigation water is one of the major factors that limit crop productivity. The cultivated tomato Lycopersicon esculentum is considered to be saltsensitive while its wild relative species L. pennellii has been observed to be more salt tolerant (Bolarin et al. 1991, Cuartero et al. 1992. The salt tolerance of these two species was based mainly on growth and survival under salt stress (Rush and Epstein 1981). Attempts have also been made to evaluate physiological and biochemical changes such as ion exchange, the role of solute contribution to the osmotic adjustment and polyamine levels with respect to differential salinity tolerance in L. esculentum and L. pennellii. However, involvement of antioxidant enzymes such as superoxide dismutase (SOD; EC 1.15.1.1) and peroxidase (POX; EC 1.11.1.7) in salinity tolerance of tomato plants is poorly discussed. Recently, Shalata andTal (1998) andMittova et al. (2002) studied the response of the antioxidant system in the leaves of the cultivated tomato and its wild salttolerant relative L. pennellii. However, in their works they employed relatively short duration of exposure (only 22 d). Therefore, how antioxidant system in the leaves of two species is included in the response to osmotic effect (within days after commence of NaCl) and salt-specific effect (within weeks after commence of NaCl) of salt stress comparatively needs to be addressed. Hence, in the present work, the changes in lipid peroxidation and antioxidant enzyme activities such as SOD and POX in salt-sensitive L. esculentum and salt-tolerant L. pennellii were studied.Two species of tomato, salt-sensitive (Lycopersicon esculentum Mill. cv. Riogrande) and salt-tolerant (L. pennellii (Correll) D'Arcy, PE 47) were used. Seeds were germinated in Perlite and grown in a growth chamber under controlled environmental conditions under the 16-h photoperiod, temperature of 30/18 °C, relative humidity of 60 -70 %. The photosynthetic photon flux density (PPFD) was 350 μmol -1 m -2 s -1 at plant height.Seedlings were watered with full strength Hoagland solution regularly in two days intervals until 40 th day of plant age. On the 41 ...

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Section: ⎯⎯⎯⎯mentioning

confidence: 99%

Effect of salt stress on lipid peroxidation and superoxide dismutase and peroxidase activities of Lycopersicon esculentum and L. pennellii

2006

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“…Since salt tolerance, like tolerance to any abiotic stress, means adaptation, breeding for salt tolerance should take advantage of the evolution of Solanum species that occurred through adaptation to marginal environments. In this sense, S. pimpinellifolium L. has been frequently considered as possible donor of salt tolerance (Bolarin et al 1991;Cuartero et al 1992;Asins et al 1993;Foolad and Lin 1997).…”

Section: Introductionmentioning

confidence: 99%

Genetic dissection of tomato rootstock effects on scion traits under moderate salinity

et al. 2015

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Rootstock HKT1 genotype affected fruit [Na(+)] and non-commercial fruit yield; QTL analysis of rootstock-mediated scion nutrition is a powerful forward genetic approach to identify wild genes for rootstock breeding. The present study approaches the QTL dissection of rootstock effects on a commercial hybrid variety grafted on a population of RILs derived from Solanum pimpinellifolium, genotyped for 4370 segregating SNPs from the SolCAP tomato panel and grown under moderate salinity. Results are compared to those previously obtained under high salinity. The most likely functional candidate genes controlling the scion [Na(+)] were rootstock HKT1;1 and HKT1;2 as it was previously reported for non-grafted genotypes. The higher fruit [Na(+)] found when rootstock genotype was homozygote for SpHKT1 supports the thesis that scion HKT1 is loading Na(+) into the phloem sap in leaves and unloading it in sink organs. A significant increment of small, mostly seedless, fruits was found associated with SlHKT1 homozygous rootstocks. Just grafting increased the incidence of blossom end rot and delayed fruit maturation but there were rootstock RILs that increased commercial fruit yield under moderate salinity. The heritability and number of QTLs involved were lower and different than those found under high salinity. Four large contributing (>17%) rootstock QTLs, controlling the leaf concentrations of B, K, Mg and Mo were detected whose 2 Mbp physical intervals contained B, K, Mg and Mo transporter-coding genes, respectively. Since a minimum of 3 QTLs (two of them coincident with leaf K and Ca QTLs) were also found governing rootstock-mediated soluble-solids content of the fruit under moderate salinity, grafting desirable crop varieties on stress-tolerant rootstocks tenders an opportunity to increase both salt tolerance and quality.

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“…Although tomato plants usually require a high water potential for optimal growth (Waister andHudson 1970, Alian et al 2000), the information on response of tomato plants to drought stress is rather scarce (Perez-Alfoncea et al 1993, Torreciallas et al 1995. Most of the previous investigations on tomato were devoted to the study of the differential responses to salinity and drought stresses of wild versus domesticated species with the objective of selection of donors for tomato breeding programmes (Bolarin et al 1991, Cuartero et al 1992, Guerrier 1996. However, very few reports on the genotypic variations in cultivated tomato are available (Alarcon et al 1994, Caro et al 1994, Alian et al 2000.…”

Section: Introductionmentioning

confidence: 99%

Comparison of drought-induced polypeptides and ion leakage in three tomato cultivars

Roy¹,

Agrawal²,

Gupta³

2009

Biologia plant.

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An attempt has been made to determine if drought-induced proteins could be used as a selection marker to differentiate between tolerant and sensitive cultivars. Three Indian tomato (Lycopersicon esculentum Mill.) cultivars (Pusa Ruby, Arka Vikas and Pusa Early Dwarf) were subjected to drought stress in vivo as well as in vitro and the pattern of polypeptide expression was determined using one-dimensional SDS-PAGE. In all the three cultivars, a new 29 kDa polypeptide accumulated in leaves, in response to gradual drought stress and its accumulation was fastest in Pusa Ruby. Drought stress also resulted in an increase in ion leakage from leaf discs of all the three cultivars but the rate was lower in Pusa Ruby than in other two. Therefore, it was concluded that Pusa Ruby is most tolerant to drought stress among the three tomato cultivars investigated.

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Salinity Tolerance in Four Wild Tomato Species using Vegetative Yield-Salinity Response Curves

Cited by 82 publications

References 15 publications

Effect of salt stress on lipid peroxidation and superoxide dismutase and peroxidase activities of Lycopersicon esculentum and L. pennellii

Effect of salt stress on lipid peroxidation and superoxide dismutase and peroxidase activities of Lycopersicon esculentum and L. pennellii

Genetic dissection of tomato rootstock effects on scion traits under moderate salinity

Comparison of drought-induced polypeptides and ion leakage in three tomato cultivars

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