Dr. Vahid Niknam

 

Born in 1967/Zanjan/Iran

Assistant Professor of Plant Physiology

E-mail: vniknam@khayam.ut.ac.ir


    

 

Academic Qualifications:


B.Sc., 1989, Plant Sciences, Urmia University, Urmia, I.R.Iran.
M.Sc., 1993, Plant Sciences, University of Tehran, Tehran, I.R.Iran.
Ph.D., 2000, Plant Physiology, University of Tehran, Tehran, I.R.Iran.

 

 

Research Interests:


Analysis of secondary metabolites: Steroidal sapogenins, Saponins; Sterols, Aliphatic nitro compounds, Mucilages, Phenolics ; Salt stress; Tissue culture; Chemotaxonomy.

 

Courses Taught:


Undergraduate Courses:

B.Sc.: Transport in plants; Water, soil and plant relations; Plant physiology(1,2).


Graduate courses:

M.Sc.: Nutrition and absorption in plants, Halophytes

Ph.D.: Physiology of stress

 

 

Publications:

 

Full papers:


1. Ebrahimzadeh, H. and Niknam,V. (1996) Quantitative an qualitative study of steroids in tissue culture of fenugreek (Trigonella foenum-graecum L.). Iranian Journal of Biology, 1(1), 45-58 (In Persian).


2. Ebrahimzadeh, H. and Niknam, V. (1998) A revised spectrophotometric method for determination of triterpenoid saponins. Indian Drugs, 35(6), 379-381 (In English).


3. Ebrahimzadeh, H., Niknam, V. and Maassoumi,A.A. (1999) Nitro compounds in Astragalus species from Iran. Biochemical Systematics and Ecology, 27(7), 743-751 (In English).


4. Ebrahimzadeh, H. and Niknam, V. (1999) A new derivatization method for the analysis of steroidal sapogenins by Gas-Liquid Chromatography. Indian Drugs, 36(6), 333-356 (In English).


5. Niknam, V., Ebrahimzadeh, H. and Maassoumi, A.A. (1999) Analysis of the species of Coronilla, Indigofera, and Lotus from Iran for toxic nitro compounds. Research and Reconstruction, 40, 65-67 (In Persian).


6. Ebrahimzadeh, H., Maassoumi, A.A. and Niknam, V. (1999) Analysis of simple haired Astragalus species from Iran for toxic nitro compounds. Iranian Journal of Botany 8(1) 63-80 (In English).


7. Ebrahimzadeh, H. Maassoumi, A.A. and Niknam,V. (2000) Analysis of bifurcate haired Astragalus species from Iran for toxic nitro compounds. Iranian Journal of Botany, 8(2) 213-222 (In English).


8. Ebrahimzadeh, H., Niknam, V. and Maassoumi, A.A. (2000) Mucilage content and its sugar composition in Astragalus species from Iran. Pakistan Journal of Botany, (1): 131-140 (In English).


9. Ebrahimzadeh, H., Niknam, V. and Maassoumi, A.A. (2001) The sterols of Astragalus species from Iran: GLC separation and quantification. Biochemical Systematics and Ecology, 29(4), 393-404 (In English).


10. Niknam, V. and Ebrahimzadeh, H. (2002) Free Proline Content In Astragalus Species. Pakistan Journal of Botany, 34(2): 129-134 (In English).


11. Hamedi, J., Malekzadeh, F. and Niknam, V. (2002) Improved production of erythromycin by Saccharopolyspora erythraea by various plant oils. Biotechnology Letters, 24: 697-700 (In English).


12. Niknam, V. and Ebrahimzadeh, H. (2002) Phenolics content in Astragalus species. Pakistan Journal of Botany, 34(3): 283-289 (In English).


13. Niknam, V. , Ebrahimzadeh, H. and Maassoumi, A.A. (2003) Toxic nitro compounds in Astragalus species. Biochemical Systematics and Ecology, 31(6) 557-562. (In English).


14. Zarre, Sh., Rajaiy, M., Ebrahimzadeh, H., Habibi, M. and Niknam, V.(2004) Isozyme variation in some populations of a rare endemic species Astragalus submitis (Fabaceae) in Iran.
Biochemical Systematics and Ecology, 32 (7) 675–684. (In English).


15. Niknam, V., Lisar, Y.S. (2004) Chemical composition of Astragalus: Carbohydrates and mucilage content. Pakistan Journal of Botany, 36(2): 381-388 (In English).


16. Niknam, V., Sharifizadeh, B., Ebrahimzadeh, H. and Zarre, Sh. (2004) Comparative study of proteins in seeds of some species of Trigonella from Iran. Iranian International Journal of Science, 5(1): 1-11. (In English).


17. Niknam, V., Bagherzadeh, M., Ebrahimzadeh, H. and Sokhansanj, A. (2004) Effects of NaCl on biomass and contents of sugars, proline and proteins in seedlings and leaf explants of Nicotiana tabacum grown in vitro. Biologia Plantarum, 48(4): 613-615. (In English).

 

 

Abstracts:


1. Ebrahimzadeh, H. and Niknam, V. (1993) Quantitative and qualitative study of steroids in tissue culture of fenugreek (Trigonella foenum-graecum L.). Abstracts of 2nd National Convention of Biology, pp. 19-20.


2. Ebrahimzadeh, H. and Niknam, V. (1995) Changes in the level of steroidal sapogenins during germination and growth stages of fenugreek (Trigonella foenum-graecum L.). Abstracts of 12th Iranian Congress of Physiology and Pharmacology, pp.196.


3. Ebrahimzadeh, H. and Niknam, V. (1997) Potential of fenugreek tissue culture for steroid production. Abstracts of 5th Iranian Seminars of Drug Sciences, p.14.


4. Ebrahimzadeh, H. and Niknam, V. (1999) A new derivatization method for the analysis of steroidal sapogenins by Gas-Liquid Chromatography. Abstracts of the 14th Congress of Physiology and Pharmacology, p.360.


5. Niknam, V. and Salehi, S.Y. (2002) Effect of NaCl on germination, growth, free proline and sugar content in seeds of four species of Astragalus in vitro. The first Iranian Conference on Plant Science and Biodiversity, p.24.


6. Valadbeigi, T., Niknam, V. and Zarre, Sh. (2002) Seedling development in some species of Astragalus. The first Iranian Conference on Plant Science and Biodiversity, p.62.


7. Hamedi, J., Malekzadeh, F. and Niknam, V. (2002) Comparative effects of various oils on the production of erythromycin by Saccharopolyspora erythraea NUR001. Xth International Congress of Bacteriology and Applied Microbiology, Paris, p.317.


8. Zarre, Sh., Rajaiy, M., Ebrahimzadeh, H., Habibi-Rezaee, M. and Niknam, V. (2003) Isozyme variation in some entries of the rare endemic species Astragalus submitis (Fabaceaea) in Iran. 8th Iranian Genetics Congress, Tehran, p.262.


9. Niknam, V., Sokhansanj, A., Bagherzadeh, M. and Ebrahimzadehm, H. (2003) Effect of salt stress on growth, organogenesis, protein electrophoretic pattern, total proteins and peroxidase enzyme activity in explants of Nicotiana tabacum var virginia. First Iranian Conference for Cell and Developmental Biology, Tehran, p. 110.


10. Niknam, V., Sokhansanj, A., Bagherzadeh, M. and Ebrahimzadehm, H. (2003) Effect of salt stress on growth, germination, free proline, sugars and total protein in seedlings of Nicotiana tabacum var virginia. 11th Biology Conference of Iran, Urmia, p. 362.


11. Sharifizadeh, B. and Niknam, V. (2003) Quantitative and qualitative analysis of steroidal sapogenins in seeds of some Trigonella species from Iran. 11th Biology Conference of Iran, Urmia, p. 350.


12. Mahdavi, N. and Niknam, V. (2003) Study of fatty acids in ripening stages of Pistacia vera. 11th Biology Conference of Iran, Urmia, p. 505.


13. Aghaleh, M., Fahimi, H., Niknam, V. and Mirmasomi, M. (2003) Effects of salinity on sugars and free proline of soybean (Glycine max L.) in tissue culture. 11th Biology Conference of Iran, Urmia, p. 499.


14. Niknam, V., Razavi, N. and Sharifizadeh, B. (2004) Effect of NaCl on proteins and antioxidant enzymes in seedlings and calli of two species of Trigonella in vitro. 12th Biology Conference of Iran, Hamadan, p. 387.


15. Niknam, V. and Salehi, S.Y. (2004) Quantitative and qualitative study of fatty acids in seeds of four species and effect of different levels of NaCl on their content in callus of two Astragalus species from Iran. 12th Biology Conference of Iran, Hamadan, p. 582.


16. Salehi, S.Y., Niknam, V. and Ebrahimzadeh, H. (2004) Effect of NaCl on some physiological parameters in calli of two Astragalus species in vitro. 12th Biology Conference of Iran, Hamadan, p. 341.


17. Sobhanian, H., Niknam, V., Safarian, Sh. And Habibi, M. (2004) Determination of specific activity and SDS effect on polyphenol oxidase (PPO) activity from several plucking of Iranian tea leaves. 12th Biology Conference of Iran, Hamadan, p. 332.

 

Thesis supervised (M.Sc.): (In Persian with abstract in English)

 

1. Salehi-Lisar,Y.(May 2003) Study of salt stress on some physiological and biochemical parameters in tissue culture of certain species of Astragalus. University of Tehran.


2. Sharifizadeh, B. (May 2004) Quantitative and qualitative study of steroidal sapogenins and proteins in whole plant and tissue culture of some Trigonella of Iran. University of Tehran.


3. Bagherzadeh, M. (June 2004) Study of salt tolerance in Nicotiana tabacum in vitro. University of Tehran.


4. Sobhanian, H. (August 2004) Analysis of proteins and polyphenol oxidase (PPO) in different plucking of Iranian tea (Camellia sinensis). University of Tehran.


5. Jariteh, M.(August 2004) Somatic embryogenesis from some Iranian walnuts (Juglans regia) and study of proteins changes. University of Tehran.
 

 

كتاب ها:


1- زيست شناسي و آزمايشگاه (1) براي سال دوم دبيرستان - 1379
2- زيست شناسي و آزمايشگاه (2) براي سال سوم دبيرستان - 1380
3- زيست شناسي پيش دانشگاهي - 1381
 

 


 

Address:

Address: Department of Biology, Faculty of Sciences, University of Tehran, Tehran, I.R.Iran.

 

E-mail: vniknam@khayam.ut.ac.ir


 

   

 

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