Dr. Wudeneh  Letchamo
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Dr. Wudeneh Letchamo

Research Scientist
Rutgers University, United State of America


Highest Degree
Ph.D. in Pharmaceutical Biology from Justus Liebig University Giessen, Germany

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Area of Interest:

Pharmacology and Toxicology
100%
Pharmaceutical Biology
62%
Medicine
90%
Pharmacognosy
75%
Plant Medical Aromaticas
55%

Research Publications in Numbers

Books
0
Chapters
0
Articles
0
Abstracts
0

Selected Publications

  1. Letchamo, W., T. Hartman, A. Gosslin, N.A. Mamedov and L. Craker, 2018. The accumulation of phenolic compounds in genetically selected Amaranthus hybridus is influenced by endophytic natural growth regulator. Int. J. Secondary Metabolite, 5: 12-19.
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  2. Letchamo, W., T. Molnar and C.R. Funk, 2007. Eco-genetic variations in biological activities of sea berry (Hippophae rhamnoides). Acta Hortic., 756: 229-244.
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  3. Tkachev, A.V., E.A. Korolyuk, W. Konig, Y.V. Kuleshova and W. Letchamo, 2006. Chemical screening of volatile oil-bearing flora of Siberia VIII.: Variations in chemical composition of the essential oil of wild growing Seseli buchtormense (Fisch. ex Sprengel) W. Koch from different altitudes of Altai region. J. Essent. Oil Res., 18: 100-103.
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  4. Tkachev, A.V., E.A. Korolyuk and W. Letchamo, 2006. Volatile oil-bearing flora of Siberia VIII: Essential oil composition and antimicrobial activity of wild Solidago virgaurea L. from the Russian Altai. J. Essent. Oil Res., 18: 46-50.
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  5. Tkachev, A.V., E.A. Korolyuk and W. Letchamo, 2006. Chemical screening of volatile oil-bearing flora of Siberia IX. Variations in chemical composition of the essential oil of Heteropappus altaicus Willd.(Novopokr.) growing wild at different altitudes of Altai region, Russia. J. Essent. Oil Res., 18: 149-151.
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  6. Tkachev, A.V., E.A. Korolyuk and W. Letchamo, 2005. Chemical screening of essential oil bearing flora of Siberia. VII. Composition of the essential oil of Kadenia dubia (Schkuhr) Lavrova et V.N. Tichom. from Altai region. J. Essent. Oil Res., 17: 636-637.
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  7. Letchamo, W., E.A. Korolyuk and A.V. Tkachev, 2005. Chemical screening of essential oil bearing flora of Siberia IV. Composition of the essential oil of Nepeta sibirica L. tops from Altai region. J. Essent. Oil Res., 17: 487-489.
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  8. Letchamo, W., E.A. Korolyuk and A.V. Tkachev, 2005. Chemical screening of essential oil bearing flora of Siberia III. Composition of the essential oil of Sium latifolium L. tops from Altai region. J. Essent. Oil Res., 17: 396-397.
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  9. Letchamo, W., E.A. Korolyuk and A.V. Tkachev, 2005. Chemical screening of essential oil bearing flora of Siberia II. Composition of the essential oil of Schizonepeta annua (Pallas) Schischkin leaves from Altai region. J. Essent. Oil Res., 17: 314-315.
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  10. Letchamo, W., W. Ward, B. Heard and D. Heard, 2004. Essential oil of Valeriana officinalis L. cultivars and their antimicrobial activity as influenced by harvesting time under commercial organic cultivation. J. Agric. Food Chem., 52: 3915-3919.
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  11. Lobatcheva, I., W. Letchamo, L. Huszar, S.A. Muchortov, N.N. Malkova and E.I. Panteleeva, 2002. Evaluation of Siberian Sea Buckthorn (Hippophae rhamnoides) Cultivars in Washington State. In: Trends in New Crops and New Uses, Janick, J. and A. Whipkey (Eds.). ASHS Press, Alexandria, VA., USA., ISBN-13: 9780097075655, pp: 399-401.
  12. Letchamo, W., L.V. Polydeonny, N.O. Gladisheva, T.J. Arnason, J. Livesey and D.V.C. Awang, 2002. Factors Affecting Echinacea Quality. In: Trends in New Crops and New Uses, Janick, J. and A. Whipkey (Eds.). ASHS Press, Alexandria, VA., USA., ISBN-13: 9780097075655, pp: 425-432.
  13. Krutilina, V.S., S.M. Polyanskaya, N.A. Goncharova and W. Letchamo, 2000. Effects of zeolite and phosphogypsum on growth, photosynthesis and uptake of Sr, Ca and Cd by barley and corn seedlings. J. Environ. Sci. Health Part A, 35: 15-29.
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  14. Bergeron, C., J.F. Livesey, D.V. Awang, J.T. Arnason, J. Rana, B.R. Baum and W. Letchamo, 2000. A quantitative HPLC method for the quality assurance of Echinacea products on the North American market. Phytochem. Anal., 11: 207-215.
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  15. Livesey, J., D.V.C. Awang, J.T. Arnason, W. Letchamo, M. Barrett and G. Pennyroyal, 1999. Effect of temperature on stability of marker constituents in Echinacea purpurea root formulations. Phytomedicine, 6: 347-349.
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  16. Letchamo, W., J. Livesey, T.J. Arnason, C. Bergeron and V.S. Krutilina, 1999. Cichoric Acid and Isobutylamide Content in Echinacea purpurea as Influenced by Flower Developmental Stages. In: Perspectives on New Crops and New Uses, Janick, J. and A. Whipkey (Eds.). ASHS Press, Alexandria, VA., USA., ISBN-13: 9780961502706, pp: 494-498.
  17. Letchamo, W., A. Gosselin, J. Hoelzl and R. Marquard, 1999. The selection of Thymus vulgaris cultivars to grow in Canada. J. Essent. Oil Res., 11: 337-342.
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  18. Krutilina, V.S., N.A. Goncharova, N.P. Panov and W. Letchamo, 1999. Effect of zeolite and phosphogypsum on yield, plant uptake and content of strontium in soil. Commun. Soil Sci. Plant Anal., 30: 483-495.
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  19. Krutilina, V.S., N.A. Goncharova and W. Letchamo, 1998. Kinetics and statics of strontium adsorption by zeolites from phosphogypsum. Commun. Soil Sci. Plant Anal., 29: 2739-2748.
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  20. Letchamo, W. and S. Mukhopadhyay, 1997. Variability in chromosomes, herb yield, essential oil content and potentials of horehound for North American commercial production. J. Hortic. Sci., 72: 741-748.
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  21. Letchamo, W. and I. Lobatcheva, 1997. On the standardization of Hippophae rhamnoides oil. Chem. Plant Raw Mater., 1: 21-24, (In Russian).
  22. Letchamo, W., S. Mukhopadhyay and A. Gosselin, 1996. Variability in herb yield and potentials of Horehound in North America. Acta Hortic., 426: 601-614.
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  23. Letchamo, W., 1996. Developmental and seasonal variations in flavonoids of diploid and tetraploid Camomile liqulate florets. J. Plant Physiol., 148: 645-651.
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  24. Letchamo, W. and A. Gosselin, 1996. Light, temperature and duration of storage govern the germination and emergence of Taraxacum officinale seed. J. Hortic. Sci., 71: 373-377.
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  25. Letchamo, W. and A. Gosselin, 1996. High quality camomile for North American commercial processing. Acta Hortic., 426: 593-600.
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  26. Bloshenko, E.K. and W. Letchamo, 1996. Characterization of natural distribution and some biological traits of Sumach (Rhuscoriaria) in Central Asia. Acta Hortic., 426: 113-122.
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  27. Letchamo, W., H.L. Xu and A. Gosselin, 1995. Variations in photosynthesis and essential oil in thyme. J. Plant Physiol., 147: 29-37.
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  28. Letchamo, W., A. Gosselin and J. Holzl, 1995. Growth and essential oil content of Angelica archangelica as influenced by light intensity and growing media. J. Essent. Oil Res., 7: 497-504.
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  29. Letchamo, W., 1993. Nitrogen Application Affects Yield and Content of the Active Substances in Camomile Genotypes. In: New Crops, Janick, J. and J.E. Simon (Eds.). Wiley, New York, USA., ISBN-13: 9780471593744, pp: 636-639.
  30. Letchamo, W. and A. Vomel, 1992. A comparative study of camomile yield, essential oil and flavonoids content under two sowing seasons and nitrogen levels. Acta Hortic., 306: 375-384.
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  31. Letchamo, W. and A. Vomel, 1992. A comparative investigation of camomile genotypes under extremely varying ecological conditions. Acta Hortic., 306: 105-114.
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  32. Letchamo, W. and H. Storck, 1991. Spices, aromatic and medicinal plants trade in Eastern Ethiopia. Acta Hortic., 270: 247-254.
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  33. Letchamo, W., 1986. Effect of the trace elements manganese and molybdenum on the leaf yield and content of cardiac glucosides in foxglove, Digitalis grandiflora, Mill. Acta Hortic., 188: 215-220.
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