| The impact of genotype and salinity on physiological function, secondary metabolite accumulation, and antioxidative responses in lettuce. | |
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MedLine Citation:
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PMID: 20302375 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Salinity inhibits plant growth due to osmotic and ionic effects. However, little is known about the impact of genotype and salinity on biochemical and molecular processes in the leafy vegetable lettuce. We report here evaluations of two lettuce types, Verte (NaCl tolerant) and Romaine (NaCl sensitive), under iso-osmotic 100 mM NaCl and 77 mM Na(2)SO(4) treatments. As compared to Romaine, NaCl-treated Verte displayed better growth, contained lower levels of inorganic cations in leaves, and possessed superior antioxidative capacity due to enhanced carotenoid and phenolics biosynthesis and more active antioxidative enzymes resulting in reduced membrane damage. Both genotypes had relatively similar growth patterns under Na(2)SO(4) treatment, but Romaine showed enhanced root lignification, greater malondialdehyde formation, and suppressed Fe-superoxide dismutase expression in roots as compared with Verte. |
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Authors:
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Hela Mahmoudi; Jun Huang; Margaret Y Gruber; Rym Kaddour; Mokhtar Lachaâl; Zeineb Ouerghi; Abdelali Hannoufa |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of agricultural and food chemistry Volume: 58 ISSN: 1520-5118 ISO Abbreviation: J. Agric. Food Chem. Publication Date: 2010 Apr |
Date Detail:
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Created Date: 2010-04-21 Completed Date: 2010-07-26 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0374755 Medline TA: J Agric Food Chem Country: United States |
Other Details:
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Languages: eng Pagination: 5122-30 Citation Subset: IM |
Affiliation:
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Agriculture and Agri-Food Canada, Saskatoon Research Centre, Saskatoon, SK, S7N 0X2, Canada. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Antioxidants
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metabolism* Genotype Lettuce / genetics, metabolism* Photochemistry Sodium Chloride* Species Specificity |
| Chemical | |
Reg. No./Substance:
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0/Antioxidants; 7647-14-5/Sodium Chloride |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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