Laboratory of Ann Hirsch


Publications (since 2002)

  1. Lum, M., Li, Y., LaRue, T.A., Schwartz, R.D., Kapulnik, Y. and Hirsch, A.M.   2002.   Investigation of four non-nodulating mutants of white sweetclover ( Melilotus alba annua Desr.) mutants and their response to arbuscular-mycorrhizal fungi.   Int. Comp. Biol. 42:   113-121.
  2. Giordano, W., Lum, M.R., and Hirsch, A.M.   2002.   Effects of a Nod-factor overproducing strain of Sinorhizobium meliloti on the expression of the ENOD40 gene in Melilotus alba .   Can. J. Bot.   80: 907-915.
  3. Hirsch, A.M., Bauer, W.D., Bird, D.M., Cullimore, J., Tyler, B., and Yoder, J.I.   2003.   Molecular signals and receptors-controlling rhizosphere interactions between plants and other organisms.   Ecology . 84: 858-868.
  4. De Hoff, P. and Hirsch, A.M.   2003.   Nitrogen comes down to earth.   Report from the 5 th European Nitrogen Fixation Conference.   Mol. Plant-Microbe Inter.   16:371-375.
  5. Karlowski, W.M. and Hirsch, A.M.   2003.   The overexpression of an alfalfa RING-H2 gene induces pleiotropic effects on plant growth and development.   Plant Mol. Biol .   52: 121-133.
  6. Lum, M.R, and Hirsch, A.M.   2003.   Roots and their symbiotic microbes: strategies to obtain nitrogen and phosphorous in a nutrient-limiting environment.   J. Plant Growth Regul.   21:368-382.
  7. Brill, L.M., Fujishige, N.A., Hackworth, C.A. and Hirsch A.M.   2004.   Expression of MsLEC1 -transgenes in alfalfa plants causes symbiotic abnormalities.   Mol. Plant-Microbe Inter.   17:16-26.
  8. Lum, M.R. and Hirsch, A.M.   2004.   Overcoming fixed nitrogen deficiency by nodulation.   In :   R.M. Goodman (ed.).   Encyclopedia of Crop and Plant Sciences.   Marcel Dekker, Inc., NY.   pp. 448-451.
  9. Woo, H.-H., Hirsch, A.M., and Hawes, M.C.   2004.   Altered susceptibility to infection by Sinorhizobium meliloti and Nectria haematococca in alfalfa roots with altered cell cycle.   Plant Cell Rep .   12:967-973.
  10. Giordano, W. and Hirsch, A.M.   2004.   The expression of MaEXP1 , a Melilotus alba expansin gene is up-regulated during the sweetclover- Sinorhizobium meliloti interaction.   Mol. Plant-Microbe Inter.   17:613-622.
  11. Hirsch, A.M.   2004.   Plant-microbe symbioses:   a continuum from commensalism to parasitism.   Symbiosis .   37:345-363.
  12. Valdés, M., Pérez, N.-O., Estrada-de los Santos, P., Caballero-Mellado, J., Normand , P., and Hirsch, A.M.  2005 Non- Frankia actinomycetes isolated from surface-sterilized roots of Casuarina equisetifolia possess nifH sequences.   Appl. Environ. Microbiol. 71: 460-466.
  13. Fujishige, N.A., Kapadia, N.N. and Hirsch, A.M. 2006. A feeling for the microorganism: structure on a small scale. Biofilms on plant roots. Bot. J. Linn. Soc. 150:79-88.
  14. Fujishige, N.A., Kapadia, N.N., De Hoff, P.L., and Hirsch, A.M. 2006. Investigations of Rhizobium biofilm formation. FEMS Microbiol. Ecol. 56:195-205.
  15. Rinaudi, L., Fujishige, N.A., Hirsch, A.M.,Banchio, E., Zorreguieta, and Giordano, W. 2006. Effects of nutritional and environmental conditions on Sinorhizobium meliloti biofilm formation. Res. Microbiol. 157:867-875.
  16. Lee, A. and Hirsch, A.M. 2006. Signals and responses: choreographing the complex interaction between legumes and alpha- and beta-rhizobia. Plant Signal. Behavior. 1:161-168.
  17. Suzuki, A., Hara, H., Kinoue, T., Abe,, M., Uchiumi, T., Kucho, K., Higashi, S., Hirsch, A.M., and Arima, S. 2008. Split-root study of autoregulation of nodulation in the model legume Lotus japonicus. J. Plant Res. 121:245-249.
  18. Fujishige, N.A., Lum, M.R., De Hoff, P.L., Whitelegge, J.P., Faull, K.F., and Hirsch, A.M. 2008. Rhizobium common nod genes are required for biofilm formation. Mol. Microbiol. 67:504-515.
  19. Lee, A., Giordano, W., and Hirsch, A.M. 2008. Cytokinin induces expansin gene expression in Melilotus alba Desr. wild-type and the non-nodulating, non-mycorrhizal (Nod-Myc-) mutant Masym3. Plant Signal. Behavior. 3:218-223.
  20. Hirsch, A.M., Lum, M.R. and Fujishige, N.A. 2009. Microbial encounters of a symbiotic kind-attaching to roots and other surfaces. In: Emons, A.M.C. and T. Ketelaar (eds.). Root Hairs. Plant Cell Monographs. Vol. 12. Pp. 295-314. DOI 10.1007/7089_2008
  21. Hirsch, A.M. and Fujishige, N.A. 2008. Commensalism. In: Population Dynamics, Vol. 1, Encyclopedia of Ecology, 5 Vols. Eds. S.E. Jorgensen and B. D. Fath. Elsevier, Oxford. pp. 679-683
  22. De Hoff, P.L., Brill, L.M. and Hirsch, A.M. 2009. Plant lectins: the ties that bind in root symbiosis and plant defense. Mol. Gen. Genom. 282:1-15. DOI 10.1007/s00438-009-0460-8