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Phenotypic and metabolic responses to drought and salinity of four contrasting lentil accessions.

Muscolo A, Junker A, Klukas C, Weigelt-Fischer K, Riewe D, Altmann T - J. Exp. Bot. (2015)

Bottom Line: The effects of salinity and drought on germination and early growth of Castelluccio di Norcia (CAST), Pantelleria (PAN), Ustica (UST), and Eston (EST) accessions were evaluated to identify metabolic and phenotypic traits related to drought and/or salinity stress tolerance.The results showed a relationship between imposed stresses and performance of the cultivars.Stress-specific metabolite indicators were also identified: ornithine and asparagine as markers of drought stress and alanine and homoserine as markers of salinity stress.

View Article: PubMed Central - PubMed

Affiliation: Agriculture Department, Mediterranea University, Feo di Vito, 89124 Reggio Calabria, Italy amuscolo@unirc.it.

No MeSH data available.


Related in: MedlinePlus

Tolerance indices for four lentil accessions and their growth responses to (A) osmotic stress (PEG) and (B) salt stress (NaCl). Plots represent the ratio of the mean plant height values as extracted from RGB side images per treatment, genotype, and day [6–15 days after sowing (das)] between stress conditions and the control. Tolerance index: 1=full tolerance, 0=total susceptibility. (This figure is available in colour at JXB online.)
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Figure 6: Tolerance indices for four lentil accessions and their growth responses to (A) osmotic stress (PEG) and (B) salt stress (NaCl). Plots represent the ratio of the mean plant height values as extracted from RGB side images per treatment, genotype, and day [6–15 days after sowing (das)] between stress conditions and the control. Tolerance index: 1=full tolerance, 0=total susceptibility. (This figure is available in colour at JXB online.)

Mentions: Using the plant height data, tolerance indices were calculated for all genotypes and every day from 6 DAS to 15 DAS as the ratios of the values in the stress condition/control values (Fig. 6). Tolerance indices dropped over time for all genotypes in the PEG treatment, whereas they were either constantly high (for CAST and UST) or increased moderately from an initial low level (for PAN and EST) upon NaCl exposure. For the PEG treatment, a stress tolerance ranking of CAST > EST ≈ UST > PAN was observed, while a different response was apparent in the NaCl treatment, with a ranking of CAST ≈ UST > PAN ≈ EST.


Phenotypic and metabolic responses to drought and salinity of four contrasting lentil accessions.

Muscolo A, Junker A, Klukas C, Weigelt-Fischer K, Riewe D, Altmann T - J. Exp. Bot. (2015)

Tolerance indices for four lentil accessions and their growth responses to (A) osmotic stress (PEG) and (B) salt stress (NaCl). Plots represent the ratio of the mean plant height values as extracted from RGB side images per treatment, genotype, and day [6–15 days after sowing (das)] between stress conditions and the control. Tolerance index: 1=full tolerance, 0=total susceptibility. (This figure is available in colour at JXB online.)
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4585415&req=5

Figure 6: Tolerance indices for four lentil accessions and their growth responses to (A) osmotic stress (PEG) and (B) salt stress (NaCl). Plots represent the ratio of the mean plant height values as extracted from RGB side images per treatment, genotype, and day [6–15 days after sowing (das)] between stress conditions and the control. Tolerance index: 1=full tolerance, 0=total susceptibility. (This figure is available in colour at JXB online.)
Mentions: Using the plant height data, tolerance indices were calculated for all genotypes and every day from 6 DAS to 15 DAS as the ratios of the values in the stress condition/control values (Fig. 6). Tolerance indices dropped over time for all genotypes in the PEG treatment, whereas they were either constantly high (for CAST and UST) or increased moderately from an initial low level (for PAN and EST) upon NaCl exposure. For the PEG treatment, a stress tolerance ranking of CAST > EST ≈ UST > PAN was observed, while a different response was apparent in the NaCl treatment, with a ranking of CAST ≈ UST > PAN ≈ EST.

Bottom Line: The effects of salinity and drought on germination and early growth of Castelluccio di Norcia (CAST), Pantelleria (PAN), Ustica (UST), and Eston (EST) accessions were evaluated to identify metabolic and phenotypic traits related to drought and/or salinity stress tolerance.The results showed a relationship between imposed stresses and performance of the cultivars.Stress-specific metabolite indicators were also identified: ornithine and asparagine as markers of drought stress and alanine and homoserine as markers of salinity stress.

View Article: PubMed Central - PubMed

Affiliation: Agriculture Department, Mediterranea University, Feo di Vito, 89124 Reggio Calabria, Italy amuscolo@unirc.it.

No MeSH data available.


Related in: MedlinePlus