Prof. Isaac Barash

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Prof. Isaac Barash
Phone: 03-6406251
Fax: 03-6409380
Office: Britannia-Porter, 514


I. Personal

      Nationality: Israeli

      Marital status: Married, 2 children


II. University Education

      1956-1961 –  The Hebrew University of Jerusalem,

      1961 – M.Sc. in Plant Protection

      1961-1965 – University of California, Davis, U.S.A.

      1965 – Ph.D. Plant Pathology (Biochemistry minor)


III. Research and Teaching Appointments

      1965-1967     University of California, Los Angeles, Acting Assistant Professor (in Medical Mycology), Department of Medical Microbiology and Immunology

      1967-date      Tel Aviv University, Israel, Department of Plant Sciences

      1982-date      Professor

      1980-84         Chairman, Department of Plant Sciences, Tel Aviv University

      1987-1992     Chairman, Department of Plant Pathology, Agricultural Research Organization, The Volcani Center

      1995-2000     Dean of the Faculty of Life Sciences, Tel Aviv University

      2000- 2005    Director of the Institute for Cereal Improvement

      2006-date      Professor Emeritus


IV.   Memberships in Scientific Societies

      American Phytopathological Society  (Elected as an APS Fellow).

      International Society for Molecular Plant - Microbe Interactions

      Israeli Phytopathological Society

      International Society for Plant Molecular Biology


VI. Editorial and Manuscripts’ Reviews

      Editorial Boards: “Biology of metals” “Phytoparasitica.

      Reviewed manuscripts: “Molecular Plant-Microbe Interactions”,  “Molecular  Plant   Pathology” “FEBS Letters” “Plant Science” “Phytopathology”.


VII. Competitive Grants

Research was constantly supported by grants obtained from the “Binational Science Foundation,” (BSF), “Israeli Academy of Sciences,” (ISF), “Binational Agricultural Research and Development,” (BARD), “German Research Foundation (DFG) for trilateral  cooperative research between Israeli, Palestinian and German Scientists”, “USAID-CDR” (including cooperation with  Kazakhstan), “Agency for International Development, U.S.A”, (with Dr. Albert Afosu Asiedo - Ghana), “Israeli Ministry of Science” (including cooperation with Ukrine) .


VIII. Committees (partial list)

I had served as a member or a chair of numerous faculty, national and international committees including ISF (Israeli Science Foundation) commities, BARD (Binational, the “American Phytopathological Society Awards and Honors Committee (1999-2001).” (Chair-2001), Organizing Committees for International Symposia (e.g., Bat Sheva Senminar for host-fungus interactions, Technical Advisory Committee (TAC) of BARD, a member of the “20 Years Review Committee of BARD”,   Member and a chair of the Committee for Promotion of scientists from government research institutes.


IX Teaching

Ninteen  graduate students for a Ph.D. degree and 32 for M.Sc. degree have    completed their research in my laboratory. I have taught the following courses during the last 25 years: “Physiology of Fungi”, “Biology of Plant Pathogenic bacteria and Fungi” “Molecular Plant-Microbe Interactions” (advanced course). “Molecular aspects of Pathogenicity and symbiosis during the interaction between bacteria and plants” (advanced course).



Aharonowitz, Y., S. Bauer, S. Loya, R. Schreiber, I. Barash and D.L. Gutnick. Specific inhibitors of tissue-degrading enzymes for control of post-harvest diseases of fruit and vegetables. Israel Patent Application No. 84222, October 1987.



1. Barash, I., I. Wahl. 1960. Studies on Ascochyta diseases of peas in Israel. Hassadeh 41: 262-267 (Hebrew)..

2. Barash, I., J. M. Kliesiewics, T. Kosuge. 1963. Studies on levels of reducing sugars and hydrolytic enzymes in relation to Botrytis head rot on safflower. Phytopathology 53: 1137-1138.

3. Barash, I.,J.M. Kliesiewics, T. Kosuge. 1964. Biochemical factors affecting

      pathogenicity of Botrytis cinerea of safflower. Phytopathology 54: 923-927.

4. Barash, I., J.M. Kliesiewics, T. Kosuge. 1965. Utilization of carbon compounds by zoospores of Phytophthora drechsleri and their effect on motility and germination. Phytopathology 55: 1257-1261.

5. Barash, I., M.L. Conway, D.H. Howard. 1967. Carbon catabolism and synthesis of macromolecules during spores germination of Microsporum gypseum. Journal of Bacteriology 93: 656-662..

6. Barash, I., L. Klein.1968. The Surface localization of polygalacturonase in Geotrichum candidum. Phytopathology 58: 1364-1371.

7. Barash, I. 1969. Liberation of polygalacturonase during spore germination by Geotrichum candidum. Phytopathology 59: 319-324.

8. Barash, I., Z. Eyal. 1970. Properties of a polygalacturonase produced by Geotrichum candidum. Phytopathology 60: 27-30.

9. Barash,  I, S. Kehassam. 1970. The relationship and properties of pectic glycosidases produced by host and pathogen during anthracnose disease of avocado. Phytochemistry 9: 1189-1197.

10.Barash, I., E. Engel. 1970. Purifcation and properties of exopolygalacturonase from lemon fruits infected by Penicillium digitatum. Israel Journal of Botany 19: 599-608.

11.Shorer, J., I. Zalmanowicz, I. Barash. 1972. Utilization and metabolis  of urea-C14 during spore germination by Geotrichum candidum. Phytochemistry 11: 595-608.

12. Barash, I.,H. Mor. 1972. Studies on the control and properties of  ornithine transcarbamylase in germinated spores of Geotrichum candidum. Plant and Cell Physiology 13: 119-130.

13. Barash, I,. Lowy, S. Pomeranz. 1972. Effect of urea on ammonia dependent synthesis of carbamyl phosphate during spore germination of Geotrichum candidum. Plant Physiol. 50: 642-644.

14. Barash, I. 1972. Accumulation of urea and allntoin during purine utilization by germinating spores of Geotrichum candidum. J. of General Microbiology, 72: 539-542.

15. Errel, H., Mor, I. Barash. 1973. The isozymic nature and kinetic properties of glutamate dehydrogenase from safflower seedlings. Plant and Cell Physiology 14: 39-50.

16. Barash, I.,H. Mor. 1973. Regulation of ammonium assimilation in germinated spores of Geotrichum candidum. Phytoparasitica: 56-57.

17. Barash, I., T. Sadon, H. Mor.1973. Regulation of glutamate dehydrogenase in rust-infected and excisedoat leaves. In:Symposium on regulatory metabolism during pathogenesis. Proceedidng 2nd International Congress of Plant Pathology. 193-4.

18. Barash, I., H. Mor. 1973. Regulation of nicotinamide adenine dinucleotide phosphate-specific glutamate dehydrogenase in germinated spores of Geotrichum candidum. Plant Physiol. 51: 852-858.

19. Barash, I., T. Sadon, H. Mor. 1973. Induction of a specific isozyme of glutamate dehydrogenase by ammonia in oat leaves. Nature, 244: 150-151.

20. Barash, I., T. Sadon, H. Mor. 1974. Relationship of glutamate dehydrogenase levels to free amino acids, amides and ammonia in excised oat leaves. Plant and Cell Physiology 15: 538-542.

21. Barash, I., A.L. Karr, Jr. t., G.A. Strobel. 1975.Isolation and characterization of Stemphyline, a chromone glucoside from Stemphylium botryosum. Plant Physiol. 55: 646-651.

22. Barash, I., H. Mor, T. Sadon. 1975. Evidence for ammonium-dependent de novo synthesis of glutamate dehydrogenase in detached oat leaves. Plant Physiol. 55: 646-651.

23. Nachmias,A., I. Barash. 1976. Decreased permeability as a mechanism of resistance to methyl-2-benzimidazole carbamate (MBC) in Sporobolomyces roseus. J. of General Microbiol. 94: 167-172.

24. Barash, I.,H. Mor, T. Sadon. 1976. Isozymes of glutamate dehydrogenase from oat leaves: properties and light effect on synthesis. Plant and Cell Physiol. 493-500.

25. Breiman, A., I. Barash. 1976. Characterization of L-Asparagine transport system in Stemphylium botryosum. Journal of Bacteriology. 127: 1129-1135.

26. Nachmias, A., I. Barash, Z. Solel and G.A. Strobel. 1977. Purification and partial characterization of a phytotoxic glycopeptide produced by Phoma trachaeiphila, the causal agent of mal-secco disease. Physiological Plant Pathology, 10: 1-8.

27. Nachmias, A.,I. Barash, Z. Solel, G.A. Strobel. 1977. Translocation of mal-secco toxin in lemons and its effect on electrolyte leakage, transpiration and citrus callus growth. Phytoparasitica 5: 94-103. 

28. Breiman, A.,I. Barash. 1978. In vivo regulation of Nicotine adenine dinucleotide phosphate-specific glutamate dehydrogenase in Stemphylium botryosum. J. General Microbiology, 106: 343-352.

29. Barash, I., D. Netzer, A. Nachmias. G. A. Strobel. 1978. Differential effect of phytotoxins produced by Stemphylium botryosum on susceptible and resistance lettuce cultivars. Phytoparasitica 6: 95-98,

30. Nachmias, A.,I. Barash, V. Buchner, Z. Solel, G.A. Strobel.1979. Isolation of a phytotoxic glycopeptide from lemon leaves infected with Phoma trachephila. Physiological Plant Pathology 14: 135-140.

31. Nachmias, A.,M. Bar-Joseph, Z. Solel, I. Barash. 1979. Diagnosis of mal-secco disease in lemon by enzyme-linked immunosorbent assay. Phytopathology 69: 559-561, 1979.

32. Breiman, A., I. Barash. 1980. Methylamine and ammonia transport in Stemphyllium botryosum. J. General Microbiology 108: 4-8.

33. Nachmias, A.,I. Barash, Z. Solel, G.A. Strobel. 1980. Effect of mal-secco toxin on lemon leaf cells. Phytoparasitica 8: 51-60.

34. Barash, I.,H. Mor, Y. Kashman, D. Netzer. 1981. Production of zinniol by Alternaria dauci in relation to its phytotoxic effect of carrot. Physiological Plant Pathology 19: 7-16.

35. Breiman, A., I. Barash. 1980. Partial characterization of phytotoxic compounds in culture filtrates of Phytophthora citrophthora. Phytopathologische Zeitchrift 102: 1-9.

36. Barash,I., G. Pupkin, L. Koren, G. Ben-Hayyim. 1981. Partial purification and mode of action of a low molecular weight phytotoxin produced by Phoma tracheiphila, the causal agent of mal-secco disease in citrus. Physiological Plant Pathology 19: 17-29.

37. Barash, I., and Zilberman, E. 1981. Inhibition of endopolygalacturonase from Geotrichum candidum by CGA (SONAX WP) and its possible implications for resistance development. Neth. J. Plant Pathology 87:238-239.

38. Kaufman, Z., D. Netzer, I. Barash. 1981.The apparent involvement of phytoalexins in the resistance response of cotton plants to Fusarium oxysporum f. sp. vasinfectum. Phytopathologische Zeitchrift 102: 178-182.

39. Schachnai, A.,I. Barash. 1982. Evaluation of fungicides for sour-rot control in lemon fruits. Plant Disease 66: 733-735.

40. Barash, I.,G. Pupkin, D. Netzer, Y. Kashman. 1982. A novel enolic-ketoaldehyde phytotoxin produced by Stemphylium botryosum f. sp. lycopersici. Plant Physiol. 69: 23-27.

41. Barash, I.,S. Manulis, Y. Kashman, J.P. Springer, M.H.M. Chen, J. Clardy, G.A. Strobel. 1983. Crystalization and x-ray analysis of Stemphyloxin I, a phytotoxin from Stremphylium botryosum. Science 220: 1065-1066.

42. Mor,H., R. Steinlauf, I. Barash. 1984. Virus-like particles and double-stranded RNA in Geotrichum candidum, the causal agent of citrus sour rot. Phytopathology 74: 921-924.

43. Barash, I.,E. Zilberman, L. Marcus. 1984. Purification of Geotrichum candidum endopolygalacturonase by affinity chromatography on cross-linked polypectate and its further characterization. Physiological Plant Pathology, 25: 161-169.

44. Manulis, S.,I. Barash, Y. Kashman, D. Netzer.1984. Phytotoxins from Stemphylium botryosum: structure determination of Stemphyloxin II, production in culture and interaction with iron. Phytochemistry 23: 2193-2198.

45. Ichilevich-Auster,M., B. Sneh, Y. Koltin, I. Barash. 1985. Suppression of damping-off caused by Rhizoctonia species caused by a non-pathogenic isolate of R. solani. Phytopathology 75: 1080-1084.

46. Finkler, A.,Y. Koltin, I. Barash, B. Sneh, D. Pozniak. 1984. Isolation of a virus from a virulent strains of Rhizoctonia solani. J. of General Virology 66: 1221-1232.

47. Ichielevich-Auster, M., B. Sneh, Y. Koltin and I. Barash. 1985. Pathogenicity, host specificity and antastomosis group of Rhizoctonia spp. isolated from soils in Israel. Phytoparasitica 13: 103-122.

48. Manulis, S.,I. Barash. 1985. Characterization of iron uptake systems in Stemphylium botryosum. In: Proceedings of the 1st International Symposium on Iron Transport-Storage-Metabolism, Tubingen, pp. 82-84.

49. Manulis, S.,D. Netzer, I. Barash. 1986. Structure-activity relationships as inferred from comparative phytotoxicity of stemphyloxins and betaenones. J. Phytopathology 115: 283-287.

50. Marcus, L,  I. Barash, B. Sneh, Y. Koltin, A. Finkler. 1986. Characterization of pectolytic enzymes produced by virulent and hypovirulent isolates of Rhizoctonia solani.  Physiological and Molecular Plant Pathology 29: 561-567.

 51. Barash,I., S. Manulis. 1986. Iron and phytotoxins as exemplified by stemphyloxins and other toxins. In "Iron, siderophores and plant disease". In T. Swinburne (ed). NATO Advanced Study, pp. 273-281, Plenum Press.

52. Sneh,B., M. Zeiden, M. Ichielevich-Auster, I. Barash, Y. Koltin. 1987. Increased growth response induced by nonpathogenic Rhizoctonia solani. Can. J. of Botany 64: 2372-2378.

53. Henis, Y., R. Kenneth, I. Barash. 1987. Survival and dormancy of fungi. In: Y. Henis (ed). "Survival and dormancy of micro-organisms" John Wiley and Sons, New York. p. 169-228.

54. Manulis, S.,Y. Kashman, I. Barash. 1987. Identification of siderophores and siderophore-mediated uptake of iron in Stemphylium botryosum. Phytochemistry 26: 1317-1320.

55. Manulis, S., D. Netzer, I. Barash. 1987. Acquisition of iron by Stemphylium botryosum under iron replete conditions. Can. J. of Microbiology 33: 652-659.

56. Finkler, A.,B.S. Ben-Zvi, Y. Koltin, I. Barash. 1987. Transcription and in vitro translation of the dsRNA virus isolated from Rhizoctonia solani. Virus Genes 1: 205-219.

57. Barash, I.,R. Zion, J. Krikun, A. Nachmias. 1988. Effect of iron status on Verticillium wilt in peanuts and on production of siderophores by V. dahliae. J. of Plant Nutrition 11: 893-905.

58. Mor, H.,M. Pasternak, I. Barash. 1988. Uptake of iron by Geotrichum candidum ,a nonsiderophore producer. Biology of Metals 1: 99-105.

59. Aaronovitz, Y. Ber, S. Loya, R. Schreiber, I. Barash, D.L. Gutnick. 1989. A specific bacterial inhibitor of the extracellular polygalacturonase of Geotrichum candidum. J. Industrial Microbiol. In: A Demain, G. Somket, J. Hunter-Cevera, H.W. Rossmoone eds. "Topics in Industrial Microbiology", p147-159.

60. Hershenhorn, J.,L. Behr, I. Barash, T. Arzee. 1989. Mode of sour rot formation as inferred from comparative studies with virulent and avirulent strains of Geotrichum candidum. J. Phytopathology 126: 257-271.

  61. . Strobel, G.A., I. Barash. 1990. Microbial phytotoxins and plant diseases. In: P. Vidhyasekaran (ed). "Eradication of agricultural pest diseases - basic research for crop disease management. Publishing House Delhi-110006. p. 65-72, 1990.

 62.  Barash, I. 1990. Iron, siderophores and plant-pathogen interactions. Phytoparasitica 18: 183-188, 1990.

63. . Hersenhorn, J.,S. Manulis, I. Barash. 1990. Polygalacturonases associated with infection of valencia orange by Penicillium italicum. Phytopathology 80, 1374-1376.

64. Mor, H.,I Barash. 1990. Characterization of siderophore-mediated iron transport in Geotrichum candidum, a non-siderophore producer. Biology of Metals 2: 209-213.

65. Dori, S., Z. Solel, Y. Kashman, I. Barash. 1990. Characterization of siderophore-mediated iron uptake in Gaumanomyces graminis var. tritici. Physiological and Molecular Plant Pathology 37: 95-106.

66. Manulis, S., Y. Gafni, E. Clark, D. Zutra, Y. Ophir, I. Barash. 1991. Identification of a plasmid DNA probe for detection of Erwinia herbicola strains pathogenic on Gypsophila. Phytopathology 81:84-87.

67. Herhenhorn, J.,.S. Dori, I. Barash. 1992. Association of Geotrichum candidum with citrus groves in Israel. Phytoparasitica 20: 31-36.

68. Dori, S.,J. Hershenhorn, Z. Solel, I. Barash. 1992. Characterization of and endoploygalacturonase associated with take-all disease of wheat. Physiological and Molecular Plant Pathology 40: 203-210.

69. Mor, H., Y. Kashman, G. Winkelmann, I. Barash. 1992. Characterization of siderophores produced by different species of the dermatophytic fungi Microsporum and Trichophyton. BioMetals 58: 3932-3940.

70. Doering-Saad, C., P. Kampfer, S. Manulis, G. Kritzman, J. Schneider, J. Zakrzewska - Czerwinska, H. Schrempf, I. Barash. 1992. Diversity among Streptomyces causing potato scab. Applied and Environmental Microbiology 58: 3932-3940.

71. Clark, E., S. Manulis, Y. Ophir, I. Barash, Y. Gafni. 1993. Cloning and characterization of iaaM and iaaH from Erwinia herbicola pathovar gypsophilae. Phytopathology 83: 234-240.

72. Barash, I., S. Dori, H. Mor, S. Manulis. 1993. The role of iron in fungal phytopathologies. In: L.L. Barton and B.C. Hemming (eds.) "Iron chelation in plants and plant-associated microbial systems. Academic Press, N.Y. p. 252-267.

73. Manulis, S., H. Shafrir, E. Epstein, A. Lichter, I. Barash. 1994. Biosynthesis of indole-3-acetic acid via indole-3-acetamide pathway in Streptomyces spp. Microbiology 140:1045-1050.

74. Gindin, G., I. Barash, N. Nazari, B. Raccah, 1994. Effect of endotoxic compounds isolated from Verticillium lecanii on the sweetpotato whitefly Bemisia tabaci. Phytoparasitica 22: 189-196.

75 Barash, I.,H. Mor,G. Gindin, B. Raccah, I.S. Ben Zeev. 1994. Selection and possible genetic manipulation of entomopathogenic fungi for biocontrol. Proceeding of Bemisia International Workshop, Shoresh, Israel,pp35-36.

76. Ben-Z'eev, I, Gindin, G, Barash, I Racaah B. 1994. Identification of entomopathogenic fungi attacking Bemisia tabaci in Israel. Proceeding of Bemisia International workshop. Shoresh, Israel p36.

77. Lichter, A., S. Manulis,O. Sagee, Y. Gafni, J. Gray, R. Meilen R. O. Morris, I. Barash. 1995. Production of cytokinins by Erwinia herbicola pv. gypsophilae and isolation of a cytokinin biosynthetic gene. Mol. Plant Microb. Interact 8: 114-121.

78.. Dori, S., Z. Solel, I. Barash. 1995. Cell wall-degrading enzymes produced by Gaeumannomyces graminis  var.tritici in vitro and in vivo. Physiological and Molecular Plant Pathology 46: 189-198..

79. Lichter, A., I. Barash, L. Valinsky S. Manulis. 1995. The genes involved in cytokinin biosynthesis in Erwinia herbicola pv. gypsophilae: characterization and role in gall formation. J. Bacteriol. 177: 4457-4465.

80. Lichter, A., S. Manulis, L. Valinsky, B. Karniol, I. Barash. 1996. IS1327, a new insertion element in the pathogenicity-associated plasmid of Erwinia herbicola pv. gypsophilae. Mol. Plant. Microb. Interactions 9: 98-104.

81. Mor, H., G. Gindin, I.S. Ben Zeev, B. Raccah, N.V. Geschtout, N. Ajtkehozhina, I. Barash. 1996. Diversity among isolates of Verticillium lecanii as expressed by DNA polymorphism and virulence towards Bemisia tabaci. Phytoparasitica 24: 111-118.

82. Gindin,G., I. Barash, B. Raccah,I.S. Ben-Ze'ev, M. Klein. 1996. The potential of some entomopathogenic fungi as biocontrol agents against the onion thrips, Thrips tabaci and the western flower thrips, Frankliniella occidentalis. Folia Entomologica Hungarica 37:37-42.

83. Nizan, R., I. Barash, L. Valinski, A. Lichter, S. Manulis. 1997. The presence of hrp genes on the pathogenicity-associated plasmid of the tumorigenic bacterium Erwinia herbicola pv. gypsophilae.Mol. Plant Microbe Interactions. Mol. Plant Microb. Interact.10:677-682.

 84. Gafni, Y., S. Manulis, T. Kunik,  A. Lichter, I.  Barash, Y. Ophir. 1998. Characterization of auxin synthesis genes of Erwinia herbicola pv. gypsophilae. Isr. J. Plant Sci. 45-279-284.

 85.Valinsky, L.,Manulis, S., Ezra, D., Nizan, R., I. Barash. 1998. A pathogenicity gene     isolated from the pPATH of Erwinia herbicola  pv. gypsophilae determines host specificity. Mol. Plant Microbe. Interact. (11:753-762).

86. Manulis, S., A. Haviv-Chesner, M. T. Brandl, S. E. Lindow, I. Barash. 1998. Differential involvement of indole-3-acetic acid biosynthetic pathways in pathogenicity and epiphytic fitness of Erwinia herbicola pv. gypsophilae  Mol. Plant Microbe Interact. (11:634-642).

87. Ezra, D. Barash, I., Valinsky, L. S. Manulis 2000. The dual function in virulence and      host-range   restriction of a gene isolated from pPATHEhg plasmid of Erwinia herbicola pv. gypsophilae. Mol. Plant-Microbe Interact. 13:683-692.

88. Gindin, G., Geschtovt N.U., Raccah, B. I. Barash. 2000. Pathogenicity of     Verticillium    lecanii to different developmental stages of Bemisia tabaci. Phytoparasitica 28:229-239. 

89. Mor, H., Manulis, S., Zuc, M., Nizan, R., Coplin, D. L., and Barash, I. (2001).  Genetic organization of the hrp gene cluster and dspEF operon in Erwinia herbicola pv. gypsophilae., Molec. Plant-Microbe Interact. 14: 431-436..

90. Guo, M, Manulis, S., Barash, I.., and Lichter, A. (2001). The operon for    cytokinin biosynthesis of Erwinia herbicola pv. gypsophilae contains two promoters and is plant induced. Can. J. of Microbiology 47: 1126-1131.

91. Valinsky, L., Barash, I., Chalupowicz, L., Ezra, D., S. Manulis. 2002. Regulation of HsvG, a host specific virulence gene of Erwinia herbicola pv. gypsophilae. Physiological and Molecular Plant Pathology 60:19-2.

92. Azaizeh, H. Gindin, G., Said, O., Barash, I. 2002. Biological control of the western flower thrips Frankliniella occidentalis in cucumber using the entomopathogenic fungus Metarhizium anisopliae Phytoparasitica 30:18-24.

93. Guo, M., Manulis, S., Mor, H., I. Barash 2002. The presence of diverse IS elements and avrPphD homologue that acts as a virulence factor on the pathogenicity plasmid of Erwinia herbcola pv. gypsophilae. Molec. Plant-Microbe Interact 15:709-716

94. Valinsky, L., Nisan, I., Tu, X., Nisan, G., Rosenshine, I., Hanski, E., Barash, I., S. Manulis 2002. A host-specific virulence protein of Erwinia herbicola pv. gypsophilae is translocated into human epithelial cells by the type III secretion system of enteropathogenic Escherichia coli. Molec. Plant Pathol. 3:97-101

95 Nizan-Koren, R., Manulis, S., Mor, H., Iraki, N. M., I. Barash. 2003. The regulatory cascade that activates the Hrp regulon in Erwinia herbicola pv. gypsophilae. Molec. Plant-Microbe Interact 16:249-260.

96. Manulis, S. and I. Barash. 2003.  The molecular basis for transformation of an epiphyte into a gall-forming pathogen as exemplified by Erwinia herbicola pv. gypsophilae, (Stacey, G. and Keen, N. T. eds) Plant-Microbe Interactions 6:19-52

97. Manulis, S. and I. Barash  2003. Pantoea agglomerans pvs. gypsophilae and betae, a recently-evolved pathogens?  Molecular Plant Pathology 4:307-314

98. Manulis, S. and I Barash. 2003. Contribution of virulence determinants from Pseudomonas and other bacteria to hrp-dependent gall formation by Erwinia herbicola pv. gypsophilae. In: Pseudomonas syringae and related pathogens.  N. S. Iacobellis (ed.). Kluwer Academic Publishers  p373-381.

99. Ezra, D.,  Barash, I.,  Weinthal, D. M., Gaba, V., S. Manulis. 2004. pthG from Pantoea agglomerans pv. gypsophilae encodes an avirulence effector that determines incompatibility in multiple beet species.  Molec. Plant Pathol. 5:105-114.

100. Nissan, G., Manulis, S., Weinthal, D.M., Sessa, G. and Barash, I. 2005. Analysis of promoters recognized by HrpL, an alternative sigma factor protein from Pantoea agglomerans pv. gypsophilae. Mol. Plant-Microbe Interact. 18:634-643.

101. Barash, I. and S. Manulis. 2005. Hrp-dependent biotrophic mechanism of virulence-how it has evolved in tumorigenic bacteria? Phytoparasitica 33:317-324.

102. Barash I.,Panijel, M., Gurel, F., Chalupowicz, L. and  Manulis, S. (2005) Transformation of Pantoea agglomerans into a tumorigenic pathogen. In S. Sorvari  and O.Toldi, eds, Proceedings of the 1st International Conference on Plant-Microbe Interactions: Endophytes and Biocontriol Agents., Lapland, Finland: Saariselka, pp 10-19.

103. Chalupowicz, L., Barash, I., Schwartz, M., Aloni, R., Manulis, S. 2006.Comparative  anatomy of gall development on Gypsophila paniculata induced by bacteria with different mechanism of pathogenicity. Planta 224:429-437.

104. Nissan, G., Manulis, S., Weinthal, D., Mor, H., Sessa, G. and Barash, I. 2006 The type  III effectors HsvG and HsvB of gall-forming Pantoea agglomerans determine host specificityand function as transcriptional activators. Molecular Microbiology 61:1118-1131.

105. Barash, I. and Manulis-Sasson, S. 2007. Virulence mechanisms and host specificity of gall-forming Pantoea agglomeransTrends in Microbiology 15:538-545.

106. Weinthal, D.M., Barash, I., Panijel, M., Valinsky, L., Gaba, V. and Manulis-Sasson, S. 2007. Distribution and replication of the pathogenicity plasmid pPATH in diverse populations of the gall-forming Pantoea agglomerans. Applied and Environmental Microbiology 73:7552-7561.

107. Balaji, V., Jacob-Hirsh, J., Sherf, O., Eichenlaub, R., Iraki, N., Manulis-Sasson, S., Rechavi, G., Barash, I. and Sessa, G. 2008. Tomato transcriptome changes in response to Clavibacter michiganensis subsp. michiganensis reveal a role for ethylene in disease development. Plant Physiology 146:1797-1809.

108.  Kleitman, F., Barash, I., Burger, A., Iraki, N., Falah, F., Sessa, G., Weinthal, D., Chalupowicz, L., Gartemann, K.-H., Eichenlaub, R. and Manulis-Sasson, S. 2008. Characterization of Clavibacter michiganensis subsp. michiganensis population in Israel. European journal of Plant Pathology (121:463-475).

109. Chalupowicz, L., Manulis-Sasson, S., Itkin, M., Sacher, A., Sessa, G. and Barash I. 2008. Quorum sensing system affects gall development incited by Pantoea agglomerans pv. gypsophilae. Molecular Plant Microbe Interactions 21:1094-1105.

110. Chalupowicz, L., Barash, I., Panijel, M., Sessa, G. and Manulis-Sasson, S. (2009). Regulatory interactions between quorum-sensing, auxin, cytokinin and the hrp regulon in relation to gall formation and epiphytic fitness of Pantoea agglomerans pv. gypsophilae. Molecular Plant-Microbe Interactions 22 :649-856.

111. Barash, I. and Manulis-Sasson, S. (2009). Recent evolution of bacterial pathogens: the gall-forming Pantoea agglomerans case. Annual Review of Phytopathology 47:133-152.

112. Chalupowicz, L., Cohen-Kandli M., Dror, O., Eichenlaub R., Gartemann K.-H. Sessa G., Barash I., Manulis-Sasson S. (2010) Sequential expression of  bacterial virulence and plant defense genes during infection of tomato with Clavibacter michiganensis  subsp. michiganensis. Phytopathology 100:252-261.

113. Weinthal D. M., Barash, I ., Tzfira, T., Gaba,V., Teper,D., Sessa, G. and Manulis-Sasson, S. (2011).  Characterization of nuclear localization signals in the type III effectors HsvG and HsvB of the gall-forming bacterium Pantoea agglomerans. Microbiology ; 157: 1500 – 1508.

114. Chalupowicz L, Zellermann E-M, Fluegel O, Dror O, Eichenlaub R, Gartemann, K-H, Savidoe, A, Sessa, G., Iraki, N., Barash I., Manulis-Sasson, S. (2012). Colonization and movement of GFP-labeled Clavibacter michiganensis subsp. michiganensis during tomato infection. Phytopathology 102:23-31.

115. Savidor A, Teper D, Gartemann K-H, Eichenlaub R, Chalupowicz  L, Manulis-Sasson  S, Barash I, Tews H, Mayer, K, Giannone, R J, Hettch, R L, Sessa, G. (2012). The Clavibacter michiganensis subsp. michiganensis–tomato interactome reveals the  perception of pathogen by the host and suggests mechanisms of infection. J. Proteome Res. 11:736-50.

116. Nissan, G., Manulis-Sasson, S., Chalupowicz, L., Teper D., Yeheskel, A., Pasmanik-Chor, M., Sessa, G. and Barash, I. (2012). The type III effector HsvG of the gall-forming Pantoea agglomerans mediates expression of the host gene HSVGT. Molecular Plant-Microbe Interactions 25 :231-240.

117. Chalupowicz ,L., Weinthal. D., Gaba, V., Sessa, G., Barash, I. and Manulis-|Sasson,      S., 2013. Polar auxin transport is essential for gall formation by Pantoea agglomerans on  gypsophila. Mol. Plant Pathology, 14. 185-190.

118. Panijel, M., Chalupowicz, L., Sessa, G., Manulis-Sasson, S. and Barash, I. (2013). Global regulatory networks control the Hrp regulon of the gall-forming bacterium Pantoea agglomerans pv. gypsophilae. Molecular Plant-Microbe Interactions 26 :1031-1043.

119. Tancos, M.A., Chalupowicz, L., Barash, I., Manulis-Sasson, S. and Smart, C.D.   (2013). Tomato fruit and seed colonization by Clavibacter michiganensis subsp. michiganensis through external and internal routes. Applied and Environmental Microbiology 79:6948-6957.

120. Barash, I. 2014.  How way leads on to way. Annual Review of Phytopathology 52:1.1-1.17.

121. Savidor, A., Chalupowicz, L., Teper, D. , Gartemann, K-H., Eichenlaub, R., Manulis-   Sasson, S., Barash, I. and  Sessa, G. (2014). Clavibacter michiganensis subsp. michiganensis transcriptional regulators are required for virulence in tomato. Molecular Plant-Microbe Interactions 27:1035-1047.

122. Barel, V., Chalupowicz, L., Barash, I., sharabani, G., Reuven, M., Dror, O., Burdman, S., and Manulis-Sasson, S. 2015. Virulence and in planta movement of Xanthomonashortorum pv. pelargonii are affected by diffusable signal factor (DSF)-dependent quorum sensing system. Molecular Plant Pathology

123. Chalupowicz, L., Barash, I., Reuven, M., Dror, O., Sharabani, G., Gartemann, K.-     H., Eichenlaub, R., Sessa, G. and Manulis-Sasson, S. (2017). Differential contribution of Clavibacter michiganensis subsp. michiganensis virulence factors to systemic and local infection in tomato. Molecular Plant Pathology 18:336-346.

124. Nissan, G., Gershovitz, M., Morozov, M., Chalupowicz, L., Sessa, G., Manulis Sasson, M., Barash, I. and Pupko, T. (2018)  Revealing the inventory of type III effectors in Pantoea agglomerans gall-forming pathovars using draft genome sequences and a machine-learning approach. Molecular Plant Pathology 19:381-392.                            

125.  Chalupowicz, L., Nissan, G., Brandl, M. T., McClelland, M., Sessa, G., Popov, G.,   Barash, I., Manulis-Sasson, S. (2018).  Assessing the ability of Salmonella enterica to translocate type III effectors into plant cells. Molecular Plant-Microbe Interactions     31:233-239.

126. Nissan, G. Chalupowicz, L., Sessa, G., Manulis-Sasson, S., Barash, I. (2019). Two Pantoea agglomerans type III effectors can transform nonpathogenic and  phytopathogenic bacteria into host-specific gall-forming pathogens. Molecular Plant Pathology  (In Press)

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