Document Detail


Comparison of sugar, acids, and volatile composition in raspberry bushy dwarf virus-resistant transgenic raspberries and the wild type 'meeker' (rubus idaeus L.).
MedLine Citation:
PMID:  18598047     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Raspberry bushy dwarf virus (RBDV) causes a significant reduction in yield and quality in raspberry and raspberry-blackberry hybrid. Genetic modifications were made to 'Meeker' red raspberries to impart RBDV resistance. The RBDV-resistant transgenic and wild type 'Meeker' plants were grown in Oregon and Washington, and the fruits were harvested in the 2004 and 2005 growing seasons. Year-to-year and site-to-site variations were observed for the degrees Brix and titratable acidity, with Oregon raspberries having slightly higher degrees Brix and lower titratable acidity than Washington raspberries. Twenty-nine volatile compounds were quantified using stir bar sorptive extraction (SBSE) paired with gas chromatography-mass spectrometry (GC-MS). There were very few differences in volatile concentrations between the transgenic varieties and the wild type 'Meeker'. Much larger variations were observed between sites and harvest seasons. Raspberries grown in Oregon appeared to have higher concentrations of delta-octalactone, delta-decalactone, geraniol, and linalool. Chiral analysis of alpha-ionone, alpha-pinene, linalool, terpinen-4-ol, delta-octalactone, and delta-decalactone demonstrated a much higher percentage of one isomer over the other, particularly alpha-ionone, alpha-pinene, delta-octalactone, and delta-decalactone, with more than 90% of one isomer, while a racemic mixture was observed for linalool. The isomeric analysis revealed very little variation between varieties, locations, or years. The flavor compounds tested in this study did not show any difference between the transgenic lines and the wild type 'Meeker' raspberry.
Authors:
Sarah M M Malowicki; Robert Martin; Michael C Qian
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Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2008-07-04
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  56     ISSN:  1520-5118     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-08-08     Completed Date:  2008-09-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  6648-55     Citation Subset:  IM    
Affiliation:
Department of Food Science and Technology, Oregon State University, and USDA-ARS, Horticultural Crops Research Laboratory, 3420 N.W. Orchard Avenue, Corvallis, Oregon 97331, USA.
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MeSH Terms
Descriptor/Qualifier:
Carbohydrates / analysis
Fruit / chemistry*
Gas Chromatography-Mass Spectrometry
Hydrogen-Ion Concentration
Odors / analysis*
Plant Diseases / genetics,  virology*
Plants, Genetically Modified / chemistry*,  virology
RNA Viruses*
Rosaceae / chemistry*,  virology
Volatilization
Chemical
Reg. No./Substance:
0/Carbohydrates

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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