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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 results showed a relationship between imposed stresses and performance of the cultivars.Metabolic differences in the stress tolerance of the different genotypes were related to a reduction in the levels of tricarboxylic acid (TCA) cycle intermediates.The relevant differences, between the most NaCl-tolerant genotype (PAN) and the most sensitive one (EST) were related to the decrease in the threonic acid level.

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

Germination percentage of Castelluccio di Norcia (CAST), Eston (EST) Pantelleria (PAN), and Ustica (UST) genotypes treated with 150mM NaCl (A) or 18% polyethylene glycol (PEG) (B). Germination was detected at 24, 36, 48, 60, and 72h. Data are expressed as a percentage of the control. Values are the mean of eight replicates. Bars are the SEMs. (This figure is available in colour at JXB online.)
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Figure 1: Germination percentage of Castelluccio di Norcia (CAST), Eston (EST) Pantelleria (PAN), and Ustica (UST) genotypes treated with 150mM NaCl (A) or 18% polyethylene glycol (PEG) (B). Germination was detected at 24, 36, 48, 60, and 72h. Data are expressed as a percentage of the control. Values are the mean of eight replicates. Bars are the SEMs. (This figure is available in colour at JXB online.)

Mentions: The results showed a relationship between imposed stresses and performance of the lentil cultivars analysed. The ranking of genotype resistance/susceptibility according to their germination frequencies (Fig. 1) was as follows: NaCl resistant > susceptible, PAN > UST > CAST > EST; PEG resistant > susceptible, CAST > UST > EST > PAN. PAN and UST germinated better in NaCl (98% and 86%) than in PEG (56% and 57%), EST germinated less in the presence of both stresses (70% in NaCl and 56% in PEG), and, conversely, CAST germination was high under both stresses (96% in PEG and 82% in NaCl). The sensitivity of lentil to salinity and PEG was also indicated by root morphology. PAN and UST had longer roots in the presence of salinity; conversely, CAST and EST showed thicker radicles under osmotic stress (data not shown).


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)

Germination percentage of Castelluccio di Norcia (CAST), Eston (EST) Pantelleria (PAN), and Ustica (UST) genotypes treated with 150mM NaCl (A) or 18% polyethylene glycol (PEG) (B). Germination was detected at 24, 36, 48, 60, and 72h. Data are expressed as a percentage of the control. Values are the mean of eight replicates. Bars are the SEMs. (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 1: Germination percentage of Castelluccio di Norcia (CAST), Eston (EST) Pantelleria (PAN), and Ustica (UST) genotypes treated with 150mM NaCl (A) or 18% polyethylene glycol (PEG) (B). Germination was detected at 24, 36, 48, 60, and 72h. Data are expressed as a percentage of the control. Values are the mean of eight replicates. Bars are the SEMs. (This figure is available in colour at JXB online.)
Mentions: The results showed a relationship between imposed stresses and performance of the lentil cultivars analysed. The ranking of genotype resistance/susceptibility according to their germination frequencies (Fig. 1) was as follows: NaCl resistant > susceptible, PAN > UST > CAST > EST; PEG resistant > susceptible, CAST > UST > EST > PAN. PAN and UST germinated better in NaCl (98% and 86%) than in PEG (56% and 57%), EST germinated less in the presence of both stresses (70% in NaCl and 56% in PEG), and, conversely, CAST germination was high under both stresses (96% in PEG and 82% in NaCl). The sensitivity of lentil to salinity and PEG was also indicated by root morphology. PAN and UST had longer roots in the presence of salinity; conversely, CAST and EST showed thicker radicles under osmotic stress (data not shown).

Bottom Line: The results showed a relationship between imposed stresses and performance of the cultivars.Metabolic differences in the stress tolerance of the different genotypes were related to a reduction in the levels of tricarboxylic acid (TCA) cycle intermediates.The relevant differences, between the most NaCl-tolerant genotype (PAN) and the most sensitive one (EST) were related to the decrease in the threonic acid level.

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