Differential Responses of Two Broccoli (Brassica oleracea L. var Italica) Cultivars to Salinity and Nutritional Quality Improvement
The comparative responses of two broccoli cultivars (Brassica oleracea var. Italica, cv. Parthenon and cv. Naxos) to a 15 d exposure to different NaCl levels were investigated. Salinity led to increased concentrations of Na+ and Cl− ions in both cultivars, a disruption of the endogenous minerals lev...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/2012/291435 |
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| author | Chokri Zaghdoud Carlos Alcaraz-López César Mota-Cadenas María del Carmen Martínez-Ballesta Diego A. Moreno Ali Ferchichi Micaela Carvajal |
| author_facet | Chokri Zaghdoud Carlos Alcaraz-López César Mota-Cadenas María del Carmen Martínez-Ballesta Diego A. Moreno Ali Ferchichi Micaela Carvajal |
| author_sort | Chokri Zaghdoud |
| collection | DOAJ |
| description | The comparative responses of two broccoli cultivars (Brassica oleracea var. Italica, cv. Parthenon and cv. Naxos) to a 15 d exposure to different NaCl levels were investigated. Salinity led to increased concentrations of Na+ and Cl− ions in both cultivars, a disruption of the endogenous minerals levels in the shoots and roots—that varied with the cultivar and salt concentration—and decreases in the osmotic potential (Ψπ), root hydraulic conductance (L0), and stomatal conductance (Gs). The reduced biomass of Naxos at moderate NaCl indicates greater sensitivity to salinity, compared with Parthenon. Parthenon accumulated more soluble sugars, for osmotic adjustment, whereas Naxos accumulated proline, which gave the two cultivars differing nutritional characteristics. The total glucosinolates (GSLs) content was not affected by salinity in Parthenon while it decreased significantly in Naxos as a consequence of the decrease in the indole GSL. However, Naxos accumulated more aliphatic GSLs under salt stress than Parthenon, which confers on this cultivar a greater nutritional value when cultivated under salinity.These results suggest that, at distinct salinity levels, each broccoli cultivar adopts a specific strategy, indicating the crucial role of the genetic background on the organoleptic and nutritional properties that each cultivar acquires. |
| format | Article |
| id | doaj-art-1d2fbd7bf99c4aea932eb402a6b56ee8 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-1d2fbd7bf99c4aea932eb402a6b56ee82025-02-03T01:11:25ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/291435291435Differential Responses of Two Broccoli (Brassica oleracea L. var Italica) Cultivars to Salinity and Nutritional Quality ImprovementChokri Zaghdoud0Carlos Alcaraz-López1César Mota-Cadenas2María del Carmen Martínez-Ballesta3Diego A. Moreno4Ali Ferchichi5Micaela Carvajal6Laboratoire d'Aridoculture et Cultures Oasiennes, Institut des Régions Arides, Route de Djerba Km 22.5, Médenine 4119, TunisiaDepartment of Plant Nutrition, Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Campus Universitario de Espinardo, Ap. de Correos 164, 30100 Murcia, SpainDepartment of Plant Nutrition, Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Campus Universitario de Espinardo, Ap. de Correos 164, 30100 Murcia, SpainDepartment of Plant Nutrition, Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Campus Universitario de Espinardo, Ap. de Correos 164, 30100 Murcia, SpainDepartment of Food Science and Technology, Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Campus Universitario de Espinardo, Ap. de Correos 164, 30100 Murcia, SpainLaboratoire d'Aridoculture et Cultures Oasiennes, Institut des Régions Arides, Route de Djerba Km 22.5, Médenine 4119, TunisiaDepartment of Plant Nutrition, Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Campus Universitario de Espinardo, Ap. de Correos 164, 30100 Murcia, SpainThe comparative responses of two broccoli cultivars (Brassica oleracea var. Italica, cv. Parthenon and cv. Naxos) to a 15 d exposure to different NaCl levels were investigated. Salinity led to increased concentrations of Na+ and Cl− ions in both cultivars, a disruption of the endogenous minerals levels in the shoots and roots—that varied with the cultivar and salt concentration—and decreases in the osmotic potential (Ψπ), root hydraulic conductance (L0), and stomatal conductance (Gs). The reduced biomass of Naxos at moderate NaCl indicates greater sensitivity to salinity, compared with Parthenon. Parthenon accumulated more soluble sugars, for osmotic adjustment, whereas Naxos accumulated proline, which gave the two cultivars differing nutritional characteristics. The total glucosinolates (GSLs) content was not affected by salinity in Parthenon while it decreased significantly in Naxos as a consequence of the decrease in the indole GSL. However, Naxos accumulated more aliphatic GSLs under salt stress than Parthenon, which confers on this cultivar a greater nutritional value when cultivated under salinity.These results suggest that, at distinct salinity levels, each broccoli cultivar adopts a specific strategy, indicating the crucial role of the genetic background on the organoleptic and nutritional properties that each cultivar acquires.http://dx.doi.org/10.1100/2012/291435 |
| spellingShingle | Chokri Zaghdoud Carlos Alcaraz-López César Mota-Cadenas María del Carmen Martínez-Ballesta Diego A. Moreno Ali Ferchichi Micaela Carvajal Differential Responses of Two Broccoli (Brassica oleracea L. var Italica) Cultivars to Salinity and Nutritional Quality Improvement The Scientific World Journal |
| title | Differential Responses of Two Broccoli (Brassica oleracea L. var Italica) Cultivars to Salinity and Nutritional Quality Improvement |
| title_full | Differential Responses of Two Broccoli (Brassica oleracea L. var Italica) Cultivars to Salinity and Nutritional Quality Improvement |
| title_fullStr | Differential Responses of Two Broccoli (Brassica oleracea L. var Italica) Cultivars to Salinity and Nutritional Quality Improvement |
| title_full_unstemmed | Differential Responses of Two Broccoli (Brassica oleracea L. var Italica) Cultivars to Salinity and Nutritional Quality Improvement |
| title_short | Differential Responses of Two Broccoli (Brassica oleracea L. var Italica) Cultivars to Salinity and Nutritional Quality Improvement |
| title_sort | differential responses of two broccoli brassica oleracea l var italica cultivars to salinity and nutritional quality improvement |
| url | http://dx.doi.org/10.1100/2012/291435 |
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