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STATE OF ISRAEL I MINISTRY OF AGRICULTURE AND RURAL DEVELOPMENT   
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About Institutes Public Relations Technology Transfer Students\International Library Administration
שלח באימייל הדפס
 
Name: Abed Gera, Prof. (Researcher)
Units: Plant ProtectionPlant Pathology and Weed Research
Research Interests / Job description  
Tel:  03-9683863 03-9683437 03-9683571
Cell: 050-6220571
Fax:03-9604180
Email:  abedgera@volcani.agri.gov.il
Address:Institute of Plant Protection
Agricultural Research Organization
The Volcani Center
P.O.Box 6, Bet Dagan 50250, Israel
Head, Institute of Plant Protection
Research Interests / Job description
Research Expertise:
Molecular and biotechnological approaches for characterization and control of viral diseases of ornamental cropss.
Specific areas: Production of virus-free propagation material of ornamental and cut-flower crops.
Molecular epidemiology, virus detection and diagnosis, and virus-vector interactions.
Virus diseases of new ornamental corps.
Transformation of ornamentals for virus resistance
Tospoviruses transmission.
Management of phytoplasma diseases
Virus ecology and epidemiology
Current focus is on tospoviruses, tobamoviruses, carlaviruses and potyviruse.
Crops include ornamentals, cut flowers, nursery, and vegetables.

 Publications

  • Gera, A , Loebenstein, G. and Raccah, B. (1978). Detection of cucumber mosaic virus in viruliferous aphids by enzyme-linked immunosorbent assay. Virology 86:542-545.
  • Gera, A , Loebenstein, G. and Raccah, B. (1979). Protein coats of two strains of cucumber mosaic virus affect transmission by Aphis gossypii. Phytopathology 69:396-399.
  • Loebenstein, G., Gera, A , Barnett, A., Shabtai, S. and Cohen, J. (1980). Effect of 2,4-dichlorophenoxyacetic acid on multiplication of tobacco mosaic virus in protoplasts from local lesion and systemic-responding tobaccos. Virology 100:100-115.
  • Loebenstein, G. and Gera, A . (1981). Inhibitor of virus replication released from tobacco mosaic virus-infected protoplasts of a local-lesion responding cultivar. Virology 114:132-139.
  • Shabtai, S., Gera, A , and Loebenstein, G. (1982). Partial suppression of tobacco mosaic virus multiplication in protoplasts at increasing mannitol concentration. Plant Science Letters, 24:157-161.
  • Gera, A and Loebenstein, G. (1983). Further studies on an inhibitor of virus replication (IVR) from tobacco mosaic virus infected protoplasts of a local lesion-responding tobacco cultivar. Phytopathology 73:111-115.
  • Gera, A Loebenstein, G. and Sara Shabtai, (1983). Enhanced tobacco mosaic virus production and suppressed synthesis of a virus inhibitor in protoplasts exposed to antibiotics. Virology 127:475-478.
  • Devash, Y., Gera, A , Reichman, M., Pleiderer, W., Charabula, R., Sela, I. and Suhadolnik, R.J. (1984). 5-Dephosphorylated 2-5-adenylate trimer and its analogs. Inhibition of tobacco mosaic virus replication in tobacco mosaic virus infected leaf discs, protoplasts, and intact tobacco plants. J. Biol. Chem. 259:3482-3486.
  • Rosenberg, N., Reichman, M., Gera, A and Sela, I. (1985). Antiviral activity of natural and recombinant human leukocyte interferons in tobacco protoplasts. Virology 140:173-178.
  • Gera, A , Spiegel, A. and Loebenstein, G. (1986). Production, preparation and assay of an antiviral substance from plant cells. Meth. in Enzymology 119:729-734.
  • Gera, A and Loebenstein, G. (1988). Inhibitor of virus replication associated with green island tissue of tobacco infected with cucumber mosaic virus. Physiol.and Mol. Plant Pathol. 32:73-385.
  • Gera, A and Loebenstein, G. (1989). Evaluation of antisera to an inhibitor of virus replication (IVR). J. Phytopathol.124:366-371.
  • Spiegel, S., Gera, A , Salomon, R., Ahl, P., Harlap, S. and Loebenstein, G. (1989). Recovery of an inhibitor of virus replication from the intercellular fluid of hypersensitive tobacco infected with tobacco mosaic virus and from non-infected induced-resistant tissue. Phytopathology 79:258-262.
  • Gera, A , Sadka, A., Spiegel, S., Salomon, R. and Smorodinsky, N.I. (1989). Use of monoclonal antibodies in the purification of an inhibitor of virus replication by affinity chromatography. J. gen. Virol. 70:1293-1296.
  • Gera, A and Cohen, J. (1990). Occurrence of cucumber mosaic virus in phlox in Israel. Plant Pathol. 39:558-560.
  • Gera, A and Cohen, J. (1990). The natural occurrence of bean yellow cucumber and tobacco mosaic viruses in lisianthus in Israel. Plant Pathol. 39:561-564.
  • Gera, A , Loebenstein, G., Salomon, R. and Franck, A. (1990). An inhibitor of virus replication (IVR) from protoplasts of a hypersensitive tobacco cultivar infected with tobacco mosaic virus is associated with a 23K protein species. Phytopathology 80:78-81.
  • Loebenstein, G., Gera, A and Gianinazzi, S. (1990). Constitutive production of an inhibitor of virus replication in the interspecific hybrid of Nicotiana glutinosa x Nicotiana debneyi. Phys. and Mol. Plant Pathol. 37:145-151.
  • Gera, A , Tam, Y., Teverovsky, E. and Loebenstein, G. (1993). Enhanced tobacco mosaic virus production and suppressed synthesis of the inhibitor of virus replication in protoplasts and plants of local lesion responding cultivars exposed to 35°C. Phys. and Mol. Plant Pathol. 43:299-306.
  • Gera, A , Tostado, J.M., Garcia-Luque, I. and Serra, M.T.(1994). Association of the inhibitor of virus replication with resistance mechanisms in pepper cultivars. Phytoparasitica 22(3):219-227.
  • Gera, A and Cohen, J. (1994). Virus diseases of new ornamental crops. Israel Agresearch. 7 (1), 127-137.
  • Cohen, J., Gera, A , Ecker, R., Ben-Joseph, R., Perlsman, M., Gokkes, M. and Antignus, Y. (1995). Lisianthus leaf curl a new disease of lisianthus (Eustoma grandiflorum) caused by tomato yellow leaf curl virus (TYLCV). Plant Disease 79, 416-420.
  • Cohen, J., Gera, A and Loebenstein, G. (1995). Strawberry latent ringspot virus in lilies. Eur. J. Plant Pathol. 101, 217-219
  • Gera, A , Deom, M.C. Donson, J., Shaw, J.J., Lewandowski, D.J. and Dawson, W.O. (1995). Tobacco mosaic tobamovirus does not require concomitant synthesis of movement protein for vascular transport. Mol. Plant Microbe Interaction. 8, 784-787.
  • Franck, A., Loebenstein, G., and Gera, A (1997). Use of reverse transcription-polymerase chain reaction for the detection of pelargonium flower break carmovirus. J. of Phytopathol. 145, 235-238.
  • Gera, A , Lesemann, D.E., Cohen, J., Franck, A., Levy, S. and Salomon, R.(1997). The natural occurrence of turnip mosaic potyvirus in Allium ampeloprasum. J. of Phytopathol. 145, 289-293.
  • Antignus, Y., Lapidot, M., Ganaim, N., Cohen, J., Lachman, O., Pearlsman, A., Raccah, B. and Gera, A (1997). Biological and molecular characterization of tomato spotted wilt virus in Israel. Phytoparasitica 25, 319-330.
  • Gera, A , Cohen, J., Salomon, R. and Raccah, B. (1998). Iris yellow spot tospovirus detected in onion (Allium cepa) in Israel. Plant Dis. 82, 127.
  • Zeidan, M., Cohen, J. Watad, A and Gera, A (1998). Improved purification and molecular properties of ornithogalum mosaic virus in Israel. Ann. Appl. Biol. 133, 167-176.
  • Gera, A , Kritzman, A., Cohen, J., and Raccah, B. (1999). First report of impatiens necrotic spot tospovirus (INSV) In Israel Plant Dis. 83, 587.
  • Sikron, N., Cohen, J. Shoval, S. and Gera, A (1999). Susceptibility of vegetatively propagated petunia to tobamovirus infection and its possible control. HotScience 34, 292-293.
  • Gera, A , Cohen, J., Kritzman, A., Beckelman E. and Bar-Joseph, M. (1999). Production of diagnostic antibodies to plant viruses utilizing denatured coat proteins and booster immunization with partially purified virus. J. of Plant Pathol. 81: 3, 189-192.
  • Akad, F., Teverovsky, E., David, A., Czosnek, H., Gidoni, D., Gera, A and Loebenstein, G. (1999). Isolation of a cDNA coding for an inhibitor of virus replication (IVR) ? like protein. Plant Mol. Biol. 40, 969-976.
  • Gera, A , Noga Sikron, J. Cohen, and M. Zeidan (2000). First report of petunia vein clearing virus in Israel. Plant Dis. 84, 201.
  • Cohen, J., Zeidan, M., Rosner, A. and Gera, A (2000). Biological and molecular characterization of a new carlavirus isolated from Aconitum. Phytopathology 90, 340-344.
  • Tanne, E., Kuznetsova, L., Cohen, J., Alexandrov, S. and Gera, A (2000). Phytoplasmas as causal agents of celosia diseases in Israel. HotScience 35 (6),103-116.
  • Gera, A , Kritzman, A., and Cohen, J. (2000). Pittosporum tobira- A new host for tomato spotted wilt virus Plant Dis. 84, 491.
  • Zeidan, M. Noga Sikron, Cohen, J. and Gera, A (2000). Improved detection of petunia vein clearing Caulimovirus. HotScience 35 (7), 1279-1282.
  • Gera, A Hsu, H.T. Cohen, J. Watad, A. Beckelman E. and Hsu, Y.H. (2000). Effect of cucumber mosaic virus monoclonal antibodies on virus infectivity and transmission by myzus persicae J. of Plant Phytopathol. 82, 3-7.
  • Kritzman, A., Beckelman, H., Alexandrov, S., Cohen, J., Lampel, M., Zeidan, M., Raccah, B. and Gera, A (2000). Lisianthus leaf necrosis a new disease of lisianthus caused by iris yellow spot virus. Plant Dis. 84, 1185-1189.
  • Gera, A , Kritzman, A., Cohen, J., Raccah, B. and Y. Antignus (2000). Tospoviruses infecting vegetable crops In Israel. OEPP/EPPO Bulletin. 30, 289-292.
  • Cohen, J., Rosner, A., Kagan, S., Lampel, M., Maslenin, L., Zeidan, M. and Gera, A (2000). A new disease in Tabernaemontana associated with tobacco mild green mosaic virus. Ann. Appl. Biol. 138, 153-159.
  • Gera, A , M. Lampel, M., Cohen, J., and Rosner, A. (2001). Okra (Hibiscus esculentus)- A new host of Turnip Mosaic Virus in Israel. Plant Dis. 85, 336.
  • Cohen, J., Lapidot, M., Loebenstein, G. and Gera, A (2001). First Report of Sweet potato sunken vein virus occurring in Lisianthus. Plant Dis. 85:679.
  • Kritzman, A., Lampel, M., Raccah, B. and Gera, A (2001). Distribution and transmission of Iris yellow spot virus. Plant Dis. 85:838-842.
  • . Cohen, J., Rosner, A., Maslenin, L., Mor, N., Lampel, M., Zeidan, M. and Gera, A (2002). Lettuce Mosaic Potyvirus is the Causal Agent of a New Disease in Bupleurum spp. Phytoparasitica 30: 88-95.
  • Ohshima, K. Yamaguchi, K., Hirota, R. Hamamoto, T., Tomimora, K., Tan, Z.., Sano, T., Azuhata, F., Walsh, J.A., Fletcher, J., Chen, J., Gera, A., and Gibbs, A. (2002). The molecular evolution of Turnip Mosaic Virus; evidence of host adaptation, genetic recombination and geographical spread. J. Gen. Virol. 83, 1511-1521.
  • Kritzman, A. Gera, A , Raccah, B., van Lent, J. W. M. and Peters, D. (2002). The route of Tomato spotted wilt virus inside the thrips body in relation to transmission efficiency. Archives of Virology 149, 2143-2156.
  • Cohen, J., Zeidan, M., Feigelson, L., Maslenin, L., Rosner, and Gera, A (2003). Characterization of a Distinct Carlavirus Isolated from Verbena. Archives of Virology 148, 1007-1015.
  • Gera, A , Maslenin, L., Rosner, A., Ziedan, M., Pivonia, S., and Weintaub, P.G. (2004). A new disease in Limonium hybrids. I. Molecular identification. HortScience 39:1056-1059.
  • Weintaub, P.G., Pivonia, S., Rosner, A., and Gera, A 2004. A new disease in Limonium hybrids. II. Insect vectors. HortScience 39:1060-1061.
  • Fang, J. Kritzman, A. Yonash, N., Gera, A , Pollak, N., and Lavi, U. (2005). Genetic variation of thrips populations assessed by amplified fragment length polymorphism. Ann. Entomol. Soc. Am. 97(6) (in press).
  • Kamo, K., Gera, A , Cohen, J., Hammond, J., Blowers, A., Smith, F. and Van Eck, J. (2005). Transgenic Gladiolus plants transformed with bean yellow mosaic virus coat protein gene in either sense or antisense orientation. Plant Cell Report 23:654-663..
  • Gera, A , Mawassi, M., Zeidan, M., Spiegel, S. and M. Bar-Joseph M. (2005). An isolate of ?Candidatus Phytoplasma australiense? group associated with Nivun-Haamir-Die Back disease of papaya in Israel. Plant Pathology 54:560.
  •  Seifers, D. L., Harvey,  T. L., Martin, T. J., Haber, S.,. She, Y.-M., Ens, W., Standing, K. G., Salomon, R. and  A. Gera, (2005). Association of a Virus with Wheat Displaying Yellow Head Disease Symptoms in the Great Plains. Plant Disease 89:888-895.
  • Cohen, A., A. Lipsky, T. Arazi, A. Ion , R. Stav, D. Sandler-Ziv, C. intea,V.Gaba, and A. Gera. (2005). particle bombardment-mediated transformation of ornithogalum dubium for Ornithogalum mosaic virus resistance. Acta Hort. 673:183-190.

  • Adkins, S., Hammond, J., Gera, A., Maroon-Lango, C. J., Sobolev, I., Harness, A., Zeidan, M., and Spiegel, S. (2006). Biological and molecular characterization of a new carmovirus isolated from Angelonia. Phytopathology 96:460-465.

  • Assis Filho, F. M., Harness, A., Tiffany, M., Gera, A., Spiegel, S., and Adkins, S. (2006). Natural Infection of Verbena and Phlox by a Recently Described Member of the Carmovirus Genus. Plant Dis. 90:1115.

  • Spiegel, S., Zaidan ,M., Sobolev, I., Beckelman, Y. Holdengreber, V., Tam, Y., Bar Joseph, M.,  Lipsker, Z., and Gera, A.,  (2007). The complete nucleotide sequence of Passiflora latent virus, and its phylogenetic relationship to other carlaviruses. Archives of Virology 152, 181-189.

  • Weintraub, P.G., Ziedan, M., Spiegel, S. and Gera, A. (2007). A Survey of the Known Phytoplasmas in Israel. Bulletin of Insectology 60(2), 143-144.

  • Gera, A., Weintraub, P.G., Maslenin, L., Spiegel, S. and Ziedan, M., (2007). A New Disease Causing Stunting and Shoot Proliferation in Gypsophila is Associated with Phytoplasma. Bulletin of Insectology 60(2), 271-272.

  • Sobolev, I., Weintraub, P.G., Gera, A., Tam, Y., Bar Joseph, and Spiegel, S. (2007). Phytoplasma infection in the four o'clock flower (Mirabilis Jalapa) Bulletin of Insectology 60(2), 281-282. 

  • Spiegel, S., Sobolov, I, Dombrovsky, A. Gera, A., Raccah, B.,  Tam, Y. Beckelman, Y. Feigelson, L. Holdengreber, V. and Antignus, Y. (2008). Characterization of a Peanut mottle virus isolate infecting peanut in Israel, Phytoparasitica 36(2), 168-174.

  • Weintraub, P.G Pivonia, S. and Gera, A. (2008) Physical Control for Leafhopper Phytoplasma Vectors.  Journal of Economic Entomology 101(4), 1337-1340.

  • Zavaliev, R. Sagi, G., Gera, A. and B. L. Epel. (2010). The constitutive expression of Arabidopsis plasmodesmal-associated class 1 reversibly glycosylated polypeptide impairs plant development and virus spread. Journal of Experimental Botany 61(1):131-142; 

  • Ochoa-Corona, F.M., Tang, J., Lebas, B.S.M., Rubio, L., Gera, A. and Alexander, B.J.R. (2010). Diagnosis of broad bean wilt virus 1 and Verbena latent virus in Tropaeolum majus in New Zealand. Australian Plant Pathology 39, 120-124.

  • Zavaliev, R. Sagi, G., Gera, A. and B. L. Epel. (2010). The constitutive expression of Arabidopsis plasmodesmal-associated class 1 reversibly glycosylated polypeptide impairs plant development and virus spread. Journal of Experimental Botany 61(1):131-142;

  • Ochoa-Corona, F.M., Tang, J., Lebas, B.S.M., Rubio, L., Gera, A. and Alexander, B.J.R. (2010). Diagnosis of broad bean wilt virus 1 and Verbena latent virus in Tropaeolum majus in New Zealand. Australian Plant Pathology 39, 120-124.

  • Gera, A., Maslenin, L., Weintraub P. G., Mawassi, M. 2011. Phytoplasma and spiroplasma diseases in open-field crops in Israel.
    Bulletin of Insectology 64, 53-54.

  • Zavaliev, R.,  Levy, A., Gera, A.,  and  Epel,  B. L.  2013. Subcellular dynamics and role of Arabidopsis β-1,3-glucanases in cell-to-cell movement of tobamoviruses. Mol. Plant Micrope Interactions, (In Press) 

Updated on: 29/07/13 11:37
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