Toxicology and Mycotoxin Research : Lab of Ida E. Yates

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Lab of Ida E. Yates

Ph: (706) 546-3523

FAX: (706) 546-3116

iyates@saa.ars.usda.gov

Ph.D., Developmental Plant Biology, University of Georgia, Athens, GA
M.S. , Plant Taxonomy, University of Georgia, Athens, GA
B.S. , Biology, Wake Forest University, Winston-Salem, NC

Ida is a research plant physiologist. Her research is focused on examining the bioregulatory factors influencing plant productivity and developing appropriate biological controls for plant pests to ensure the safety of plants and their products in the food chain for both humans and animals.

Research objectives

1. Elucidation of the plant bioregulatory mechanisms responsible for the conversion of the corn/Fusarium verticillioides association from a symptomless, endophytic relationship to a pathogenic, mycotoxin-producing relationship.

Need: Corn and Fusarium verticillioides co-exist in a symptomless, endophytic state until the plant and/or seed are exposed to adverse conditions. Thus, the plant would appear to release a "stress signal " that triggers the rapid, accelerated growth of the fungus. The molecules responsible for this conversion from the symptomless, endophytic state to a symptomatic, mycotoxin producing condition are unknown.

Impact: Understanding the molecular bases for the shift from the symptomless to the symptomatic condition could ai in gene identification and manipulations in both organisms to control the symptomatic state.

2. Examination of Trichoderma and/or other environmental friendly mechanisms to prevent/reduce plant production of chemicals hazardous to human and/or animal health and/or fungal diseases on plants.

Need: Mechanisms have not been developed to protect important crop plants from fungal attack despite the many decades fungi have been known to adversely affect crop productivity and/or food and feed safety.

Impact: Increased crop productivity and reduced health hazards.

Lab Personnel

      Joyce Lambert
      Biological Science Laboratory Technician
      Ph: (706) 546-3523
      jlambert@saa.ars.usda.gov

Summer Interns 2005

Paul Kwakye

Georgia Southern University

Jade Nelson

South Carolina State University

Recent Senior-Authored Referred Publications

Yates, I.E., Hiett, K.L., Kapczynski, D.R., Smart, W., Glenn, A.E., Hinton, D.M., Bacon, C.W., Meinersmann, R., Liu, S. and Jaworski, A.J. GUS transformation of the maize fungal endophyte Fusarium moniliforme. Mycol. Res. 103:129-136. 1999.

Yates. I.E., Meredith, F., Smart, W., Bacon, C.W. and Jaworski, A.J. Trichoderma viride suppresses fumonisin B₁ production by Fusarium moniliforme. J. Food Prot. 11:1326-1332. 1999.

Yates, I.E. and Jaworski, A.J. Differential growth of Fusarium moniliforme relative to tissues from ‘Silver Queen’, a sweet maize. Can. J. Bot. 78:472-480. 2000.

Yates, I.E., Arnold, J.W., Hinton, D.M., Basinger, W. and Walcott, R. Fusarium verticillioides induction of maize seed rot and its control. Can. J. Bot. 81:422-428. 2003.

Yates, I.E., Arnold, J.W., Bacon, C.W., Glenn, A., Hinton, D.M. In vitro assessments of diverse plant pathogenic fungi treated with a novel growth control agent. Crop Protection 23:1169-1176. 2004.

Yates, I.E., Widstrom, N.W., Bacon, C.W., Glenn, A., Hinton, D.M., Sparks, D., and Jaworski, A.J. Field performance of maize grown from Fusarium verticillioides-inoculated seed. Mycopathologia 159:65-73. 2005.

Yates, I.E. and Sparks, D. Fusarium verticillioides migration in attached and detached sweet corn ears. J. Am. Soc. Hort. Sci. (in press). 2005.

Last Modified: 07/19/2005

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