Research Topics
| Efraim LewinsohnSummaryAffiliation: Bet Dagan Country: Israel Publications
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Detail Information
Publications
Dual role of the pigmentation gene B in affecting carotenoid and vitamin E content in squash (Cucurbita pepo) mesocarpYaakov Tadmor
Department of Field and Vegetable Crops, Agricultural Research Organization, Newe Ya ar Reseach Center, Ramat Yishay 30 095, Israel
J Agric Food Chem 53:9759-63. 2005..These results indicate that the B gene, which affects both carotenoids and tocopherols, may play a regulatory role in the flux of the isoprenoid pathway products...
Branched-chain and aromatic amino acid catabolism into aroma volatiles in Cucumis melo L. fruitItay Gonda
Institute of Plant Sciences, Newe Ya ar Research Center, Agricultural Research Organization, PO Box 1021, Ramat Yishay 30095, Israel
J Exp Bot 61:1111-23. 2010....- Study of 'Redhaven' peach and its white-fleshed mutant suggests a key role of CCD4 carotenoid dioxygenase in carotenoid and norisoprenoid volatile metabolismFederica Brandi
Consiglio per la Ricerca in Agricoltura, Unità di Ricerca per la Frutticoltura Forlì CRA FRF, via la Canapona 1 bis, 47100 Forli, Italy
BMC Plant Biol 11:24. 2011..Two contrasted cultivars, the yellow-fleshed 'Redhaven' (RH) and its white-fleshed mutant 'Redhaven Bianca' (RHB) were examined... - Carotenoid pigmentation affects the volatile composition of tomato and watermelon fruits, as revealed by comparative genetic analysesEfraim Lewinsohn
Institute of Field and Vegetable Crops, Newe Ya ar Research Center, Agricultural Research Organization, P O Box 1021, Ramat Yishay, Israel
J Agric Food Chem 53:3142-8. 2005.... 
Overexpression of the lemon basil alpha-zingiberene synthase gene increases both mono- and sesquiterpene contents in tomato fruitRachel Davidovich-Rikanati
Department of Vegetable Crops, Newe Ya ar Research Center, Agricultural Research Organization, P O Box 1021, Ramat Yishay 30095, Israel
Plant J 56:228-38. 2008....- The molecular and biochemical basis for varietal variation in sesquiterpene content in melon (Cucumis melo L.) rindsVitaly Portnoy
Institute of Plant Sciences, Newe Ya ar Research Center, Agricultural Research Organization, P O Box 1021, Ramat Yishay 30095, Israel
Plant Mol Biol 66:647-61. 2008..The genes are differentially transcriptionally regulated during fruit development and according to variety and are likely to be associated with chemical differences responsible for the unique aromas of melon varieties... - Volatile ester formation in roses. Identification of an acetyl-coenzyme A. Geraniol/Citronellol acetyltransferase in developing rose petalsMoshe Shalit
Department of Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization, P.O. Box 1021, Ramat Yishay 30095, Israel
Plant Physiol 131:1868-76. 2003..8 kD, pI of 5.45, and is active as a monomer. The RhAAT1 gene was expressed exclusively in floral tissue with maximum transcript levels occurring at stage 4 of flower development, where scent emission is at its peak... - Benzaldehyde is a precursor of phenylpropylamino alkaloids as revealed by targeted metabolic profiling and comparative biochemical analyses in Ephedra sppRaz Krizevski
Department of Aromatic, Medicinal and Spice Crops, Newe Ya ar Research Center, Agricultural Research Organization, Ramat Yishay 30095, Israel
Phytochemistry 81:71-9. 2012..foeminea than in E. sinica. Our studies further support that benzaldehyde is the metabolic precursor to phenylpropylamino alkaloids in E. sinica... - Functional characterization of CmCCD1, a carotenoid cleavage dioxygenase from melonMwafaq Ibdah
Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, P.O. Box 1021, Ramat Yishay 30095, Israel
Phytochemistry 67:1579-89. 2006..Thus, the accumulation of beta-ionone in melon fruit is probably limited by the availability of carotenoid substrate... - Enantioselective monoterpene alcohol acetylation in Origanum, Mentha and Salvia speciesOlga Larkov
Department of Vegetable Crops, Agricultural Research Organization ARO, Newe Ya ar Research Center, P O Box 1021, Ramat Yishay 30095, Israel
Phytochemistry 69:2565-71. 2008..majorana AAT produced a mixture of (R)- and (S)-linalyl acetate with a ratio of 6:4. V(max) of O. dayi acetylation activity was 30-fold higher for (R)-linalool, whereas in O. majorana no such differences were found... - Developmental and varietal differences in volatile ester formation and acetyl-CoA: alcohol acetyl transferase activities in apple (Malus domestica Borkh.) fruitDoron Holland
Institute of Field Crops and Horticulture, Agricultural Research Organization, Newe Ya ar Research Center, Ramat Yishay 30095, Israel
J Agric Food Chem 53:7198-203. 2005..Our data strongly suggest that different AAT activities are operational in apple tissues and cultivars and that these differences contribute to the variation observed in the accumulation of volatile acetates... - Naturally occurring norephedrine oxazolidine derivatives in khat (Catha edulis)Raz Krizevski
Department of Aromatic, Medicinal and Spice Crops, Newe Ya ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
Planta Med 78:838-42. 2012..edulis... - Genetics of flavonoid, carotenoid, and chlorophyll pigments in melon fruit rindsYaakov Tadmor
Newe Yaar Research Center, ARO, PO Box 1021, Ramat Yishay 30095, Israel
J Agric Food Chem 58:10722-8. 2010.... - Composition and stereochemistry of ephedrine alkaloids accumulation in Ephedra sinica StapfRaz Krizevski
Department of Aromatic, Medicinal and Spice Crops, Newe Ya ar Research Center, Agricultural Research Organization, Ramat Yishay, Israel
Phytochemistry 71:895-903. 2010..sinica stems and that the activity of (S)-cathinone reductases directs and determines the stereochemical branching of the pathway. Further methylations are likely due to N-methyltransferase activities... - Enrichment of tomato flavor by diversion of the early plastidial terpenoid pathwayRachel Davidovich Rikanati
Department of Vegetable Crops, Newe Ya ar Research Center, Agricultural Research Organization, PO Box 1021, Ramat Yishay, 30095 Israel
Nat Biotechnol 25:899-901. 2007..Monoterpene accumulation was at the expense of reduced lycopene accumulation. Similar approaches may be applicable for carotenoid-accumulating fruits and flowers of other species... - Aroma biosynthesis in strawberry: s-adenosylmethionine:furaneol o-methyltransferase activity in ripening fruitsNoa Lavid
Department of Vegetable Crops, Agricultural Research Organization, Newe Ya'ar Research Center, P.O. Box 1021, Ramat Yishay 30-095, Israel
J Agric Food Chem 50:4025-30. 2002..It is suggested that Furaneol methylation is mediated by an O-methyltransferase activity and that this activity increases during fruit ripening... - Metabolism of soluble sugars in developing melon fruit: a global transcriptional view of the metabolic transition to sucrose accumulationNir Dai
Institute of Plant Science, Agricultural Research Organization, Bet Dagan, Israel
Plant Mol Biol 76:1-18. 2011.... - O-methyltransferases involved in the biosynthesis of volatile phenolic derivatives in rose petalsNoa Lavid
Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization, P.O. Box 1021, Ramat Yishay, 30095, Israel
Plant Physiol 129:1899-907. 2002..The peak in the levels of OOMT1 and OOMT2 transcripts in the flowers coincides with peak OMT activity and with the emission of orcinol dimethyl ether... - Identification of malodorous, a wild species allele affecting tomato aroma that was aelected against during domesticationYaakov Tadmor
Institute of Field and Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization, P.O. Box 1021, Ramat Yishay, Israel
J Agric Food Chem 50:2005-9. 2002..The findings provide a genetic explanation for one of the aroma changes that occurred during the domestication of the tomato... - Distribution of primary and specialized metabolites in Nigella sativa seeds, a spice with vast traditional and historical usesIlan Botnick
Department of Vegetable Crops, Newe Ya ar Research Center, Agricultural Research Organization, P O Box 1021, Ramat Yishay 30095, Israel
Molecules 17:10159-77. 2012..Chemical analyses shed light to the ample traditional and historical uses of this plant... - Developmental patterns of phenylpropylamino alkaloids accumulation in khat (Catha edulis, Forsk.)Raz Krizevski
Department of Aromatic, Medicinal and Spice Crops, Newe Ya ar Research Center, Agricultural Research Organization, PO Box 1021, Ramat Yishay 30095, Israel
J Ethnopharmacol 114:432-8. 2007..We propose that (-)-cathinone is a biosynthetic precursor of (+)-cathine and (-)-norephedrine in khat leaves... - Changes in sugars, acids, and volatiles during ripening of koubo [Cereus peruvianus (L.) Miller] fruitsRacheli Ninio
Department of Life Sciences and Institutes for Applied Research, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
J Agric Food Chem 51:797-801. 2003..07 g/100 g fresh weight. Prominent accumulation of aroma volatiles occurred toward the end of the ripening process. The main volatile found in the ripe fruit was linalool, reaching concentrations of 1.5-3.5 microg/g fresh weight... - Isolation, cloning and expression of a multifunctional O-methyltransferase capable of forming 2,5-dimethyl-4-methoxy-3(2H)-furanone, one of the key aroma compounds in strawberry fruitsMartina Wein
, , Am Hubland, , Germany
Plant J 31:755-65. 2002..In addition, it is concluded that the Strawberry-OMT plays an important role in the biosynthesis of strawberry volatiles such as vanillin and DMMF... - Biosynthesis of plant-derived flavor compoundsWilfried Schwab
Biomolecular Food Technology, Technical University Munich, 85354 Freising, Lise Meitner Strasse 34, Germany
Plant J 54:712-32. 2008..Major progress has resulted from the use of molecular and biochemical techniques, and a large number of genes encoding enzymes of volatile biosynthesis have recently been reported... - Citrus fruit flavor and aroma biosynthesis: isolation, functional characterization, and developmental regulation of Cstps1, a key gene in the production of the sesquiterpene aroma compound valenceneLiat Sharon-Asa
Institute of Horticulture, The Volcani Center ARO, PO Box 6, Bet-Dagan 50250, Israel
Plant J 36:664-74. 2003..Isolation of the gene encoding valencene synthase provides a tool for an in-depth study of the regulation of aroma compound biosynthesis in citrus and for metabolic engineering for fruit flavor characteristics... - Characterization of monkey orange (Strychnos spinosa Lam.), a potential new crop for arid regionsYaron Sitrit
The Institutes for Applied Research, Ben Gurion University of the Negev, P O Box 653, Beer Sheva 84105, Israel
J Agric Food Chem 51:6256-60. 2003..The main volatiles present in the peel of ripe fruits were phenylpropanoids, trans-isoeugenol being the major compound...