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Tewary, Pankaj; Sharma, Ardhana; Raghunath, M. K.; Sarkar, A.

doi:10.1023/a:1006297830318

Cited by 30 publications

(4 citation statements)

References 7 publications

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“…Similar trend in reduction of shoot number and shoot length has been recorded in mulberry (Morus sp.) by Tewary et al (2000) and Vijayan et al (2003) and in wild and cultivated species of tomato (Lycopersicon esculentum) by Cano et al (1998). Mercado et al (2000) observed shoot necrosis in tomato at NaCl concentrations higher than 86 mM, which also supported the present findings.…”

Section: Discussionsupporting

confidence: 91%

Evaluation of orange-fleshed sweet potato (Ipomoea batatas L.) genotypes for salt tolerance through shoot apex culture under in vitro NaCl mediated salinity stress conditions

Dasgupta

Sahoo

Kole

et al. 2008

Plant Cell Tiss Organ Cult

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Fifteen genotypes of sweet potato were evaluated for salinity stress tolerance under in vitro NaCl mediated salinity stress conditions (MS, MS + 0.5% and MS + 1.0% NaCl). The growth parameters such as number of leaves, number of shoots, number of roots, length of plantlets and length of roots decreased significantly among the genotypes with increase in level of salinity. Of the 15 genotypes tested, six genotypes (108X1, 90/606, 90/696, CIP 8, S-30X15 and SP-61) were unable to sprout even at 0.5% NaCl and were characterized as susceptible to salt stress, three genotypes (CIP 6, 90/774 and CIP 3) which could tolerate 0.5% NaCl as moderately tolerant and six genotypes (CIP 12, CIP 13, JO 14, JP 13, and Gouri) as tolerant to salinity at 1.0% NaCl. Amongst the six genotypes showing tolerance to 1.0% NaCl, the exotic genotypes--JP 13, CIP 12 and indigenous one SB-198/115 continued to exhibit significant higher values for growth parameters over the susceptible one. Based on the performance under NaCl mediated salinity stress (1.0%), the pattern of salinity tolerance in the genotypes through shoot apex culture was JP 13 . The effect of salt stress on the activity of antioxidative enzymes was studied in leaves of 8-week-old plantlets of those six genotypes, which responded at higher NaCl stress along with a susceptible genotype 90/606. In leaves of salt stressed plants, superoxide dismutase (SOD), guaiacol peroxidase (GPX) and catalase (CAT) activities increased when compared with the stress free control. The increase was more pronounced in the tolerant genotypes than that in the susceptible one. These results indicate that oxidative stress may play an important role in salt stressed sweet potato plants and that the greater protection of tolerant plants from salt induced oxidative damage results, at least in part, through the increase in the activity of antioxidant enzymes.

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Section: Discussionsupporting

confidence: 91%

Evaluation of orange-fleshed sweet potato (Ipomoea batatas L.) genotypes for salt tolerance through shoot apex culture under in vitro NaCl mediated salinity stress conditions

Dasgupta

Sahoo

Kole

et al. 2008

Plant Cell Tiss Organ Cult

View full text Add to dashboard Cite

show abstract

“…In preliminary studies (data not shown) we found that it is very difficult to establish any differences between the reactions to osmotic stress of the raspberry genotypes on PEG concentrations lower than 20%. Similar observations have been reported for mulberry (14). High PEG doses (30 and 40%) were very damaging.…”

Section: Resultssupporting

confidence: 88%

Screening of Bulgarian Raspberry Cultivars and Elites for Osmotic Tolerance in Vitro

Georgieva¹,

Djilianov

Konstantinova

et al. 2004

Biotechnology & Biotechnological Equipment

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“…Genotypes C1 and C15 would have higher potentials to control the effect of water stress unlike other genotypes. Plant cells can acquire their stress-resistance capacity at different stages of development during in vitro cultures (Tewary et al, 2000). This response of the somatic embryos can be attributed to genetic variability at the level of cocoa genotypes.…”

Section: Development Of Somatic Embryosmentioning

confidence: 99%

Effect of water stress induced by polyethylene glycol 6000 on the somatic embryos conversion into whole plantlets in cocoa (Theobroma cacao L.)

Manlé¹,

Kouassi²,

Soumahoro³

et al. 2021

Int. J. Bio. Chem. Sci

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Rainfall scarcity due to climate change is a major constraint that limits cocoa productivity in Côte d'Ivoire. This work aims to regenerate cocoa plants tolerant to water stress using in vitro methods. Staminode and petal explants of the genotypes C1, C9, C14, C15, C16, C18 and C20 were used to produce somatic embryos through two methods. Firstly, somatic embryos were induced under stressfull conditions on media containing different concentrations of polyethylene glycol (PEG) 6000 (0; 25; 50; 75; 100 and 125 g/l) and secondly; under non-stressed conditions. Somatic embryos were placed on a conversion medium in the same stress condition. The number of regenerants decreased with the increase in the concentration of PEG with all genotypes. Only genotypes C1 and C15 regenerated plantlets under water stress conditions. The sensitive genotypes C9, C14, C16, C18 and C20 have not developed plantlets on media containing PEG. The plantlets produced under water deficit conditions exhibited a reduction in stem length and leaves number and an increase in length or offset of the high number of roots. The survival rate of regenerants during acclimatization was higher on the sandsubstrate. The selected genotypes could be used in an improvement program of cocoa production.Keywords: Climate change; plant regeneration; genotype; tolerance; drought; in vitro

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Cited by 30 publications

References 7 publications

Evaluation of orange-fleshed sweet potato (Ipomoea batatas L.) genotypes for salt tolerance through shoot apex culture under in vitro NaCl mediated salinity stress conditions

Evaluation of orange-fleshed sweet potato (Ipomoea batatas L.) genotypes for salt tolerance through shoot apex culture under in vitro NaCl mediated salinity stress conditions

Screening of Bulgarian Raspberry Cultivars and Elites for Osmotic Tolerance in Vitro

Effect of water stress induced by polyethylene glycol 6000 on the somatic embryos conversion into whole plantlets in cocoa (Theobroma cacao L.)

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