Dr Brent Kaiser

Teaching Interests

Program Coordinator: Viticulture Science

Courses: Viticultural Science, Viticultural Plant Production, Plant Molecular Biology

Research Interests

Nitrogen nutrition in plants.

This research focuses specifically on the genetic control regulating nitrogen use in plants with particular emphasis on traits, which influence nitrogen use efficiency.  Much of this work is focused at the root level where transport and assimilation of accumulated nitrogen is studied across common crop plants including Maize, Wheat, Barley and Grapevines.

 

Symbiotic nutrient transport systems in legume nodules.

We are interested in the identification and functional analysis of nutrient transport mechanisms located on the plant derived peribacteroid membrane in nitrogen fixing legume nodules. This research looks at the regulatory control of the nitrogen fixing symbiosis mediated by the exchange of nutrients including carbon (malate), nitrogen (ammonia) and trace elements (Fe, Mo). This research involves a multidisciplinary approach including classical nodule biochemistry, nutrient transport studies, functional genomics, proteomics, and microscopy.

 

Kaiser Lab:

Research Associates:

Dr. Trevor Garnett

Dr. Vanessa Conn

Dr. Mamoru Okamoto

Dr. Darren Plett

 

Research Assistants:

Akikio Enju

Charlotte Jorgensen

Nenah Mackenzie

Karen Francis

 

Students

Manijeh Mohammadi (PhD)

David Chiasson (PhD)

Han Siah (Honours)

Aananda Bhandari (Masters)

 

 

Please visit my lab web-page to get information on members of my group, research directions, and student projects.

http://web.mac.com/brent.kaiser/

Publications

Selected Publications:

1.     Kaiser, B.N., Layzell, D.B. and Shelp, B.J. (1997). Role of oxygen limitation and nitrate metabolism in the nitrate inhibition of nitrogen fixation by pea, Physiologia Plantarum 101, 45-50.

2.     Kaiser, B.N., Finnegan, P.M., Tyerman, S.D., Whitehead, L.F., Bergersen, F.J., Day, D.A. and Udvardi, M.K. (1998). Characterisation of an ammonium transport protein from the peribacteroid membrane of soybean nodules. Science 281, 1202-1206. 

3.     Glass, A.D.M., Brito, D.T., Kaiser, B.N., Kronzucker, H.J., Kumar, A., Okamato, M., Rawat, S.R., Siddiqi, Y., Salim, S.M., Vidmar, J., and Zhuo, D. (2001). Nitrogen transport in plants, with an emphasis on the regulation of fluxes to match plant demand.  Journal of Plant Nutrition and Soil Science 164, 199-207. 

4.     Glass, A.D.M., Britto, D.T., Kaiser, B.N., Kinghorn, J.R., Kronzucker, H.J., Kumar, A., Okamoto, M., Rawat, S., Siddiqi, M.Y., Unkles, S.E., and Vidmar, J. (2002). The regulation of nitrate and ammonium transport systems in plants.  Journal of Experimental Botany 53, 1-10.

5.     Moreau, S., Thomson, R.M., Kaiser, B.N., Trevaskis, B., Guerinot, M.L., Udvardi, M.K., Puppo, A., and Day. D.A. (2002). GmZIP1 encodes a symbiosis specific zinc transporter in soybean. Journal of Biological Chemistry 277, 4738-4746.

6.     Kaiser, B.N., Rawat, S.R., Siddiqi, M.Y., Masle, J., and Glass A.D.M. (2002). Functional analysis of an Arabidopsis T-DNA “knockout” of the high-affinity NH₄⁺ transporter AtAMT1;1. Plant Physiology 130, 1263-1275. 

7.     Kaiser, B.N., Moreau, S., Castelli, J. Thomson, R.M., Lambert, A., Bogliolo, S., Puppo, A. and Day. D.A. (2003). The soybean Nramp homologue, GmDMT1, is a symbiotic divalent metal transporter capable of ferrous iron transport. The Plant Journal 35, 295-304.

8.     Kaiser, B.N., Gridley, K.L., Ngaire Brady, J., Phillips, T., Tyerman, S.D. (2005).  The role of molybdenum in agricultural plant production.  Annals of Botany 96: 745-754. 

9.     Fitzpatrick, K.L, Tyerman, S.D., and Kaiser, B.N. (2008).  Molybdate transport by the plant sulfate transporter SHST1. FEBS Letters 582 (10): 1508-1513.

10.   Vandeleur, R.K., Mayo, G., Shelden, M.C., Gilliham, M., Kaiser, B.N. and S.D. Tyerman (2008) The role of PIP aquaporins in water transport through roots: diurnal and drought stress responses reveal different strategies between isohydric and anisohydric cultivars of grapevine Plant Physiology (Accepted Oct 31, 2008)

Professional Interests

Plant Mineral Nutrition

Entry last updated: Tuesday, 26 May 2009