Daniel K. Gladish, Associate Professor and Director of The Conservatory*
Phone: (513) 785-3244
Office: 544 Mosler Hall, Hamilton Campus
Email:gladisdk@muohio.edu
Ph.D. (1995) University of California, Davis
"Development of root systems, especially the effects of environmental
factors on root development."
*http://www.ham.muohio.edu/conservatory
In order to be prepared for the consequences of environmental change on wild and cultivated plants, it is important to understand how plants respond developmentally and physiologically to conditions in the environment. In the past, my interests and research foci have been the modes-of-action of herbicides and the effects of temperature on the development and physiology of root systems using physico-chemical techniques and computer image analysis. I have completed a study that suggests the environment has influences on internal timing mechanisms (biological clocks) which regulate stage-specific developmental events beyond what can be attributed to thermodynamic considerations. More recently we have been studying the effects of flooding on root anatomy and development, especially vascular aerenchyma formation and programmed cell death in legumes. I will be continuing studies on the effects of temperature, flooding, and other environmental factors on the developmental anatomy and physiology of roots.
I am also interested in studying the effects of of anthropogenic disturbances such as landfill activities on roots and other aspects of plant development. It is my intention to do studies on a landfill site planted with native tallgrass prairie species. This reconstructed prairie area is associated with the new conservatory at Miami's Hamilton Campus.
The Conservatory presents a new opportunity for students in the botany programs at Miami. As Director of The Conservatory, I supervise a graduate assistant who helps with maintenance of the collection and its records and who does research on the plants to provide information about them to the public. There are also opportunities for undergraduates interested in learning about exotic plants and working in a conservatory environment.
Gladish, D.K., Xu, J., and Niki, T. 2006. Apoptosis-like programmed cell death occurs in procambium and ground meristem of pea (Pisum sativum) root tips exposed to sudden flooding. Annals of Botany, in press.
Niki, T., and Gladish, D.K. 2001. Changes in growth and structure of pea primary roots (Pisum sativum L. cv. Alaska) as a result of sudden flooding. Plant and Cell Physiology 42: 694-702.
Gladish, D.K., Sutter, E.G., and Rost, T.L. 2000. The role of free IAA levels, IAA transport, and sucrose transport in the high temperature inhibition of root system development in pea (Pisum sativum L. cv. Alaska). Journal of Plant Growth Regulation 19: 347-358.
Gladish, D.K., and Niki, T. 2000. Factors inducing cavity formation in the vascular cylinders of pea roots (Pisum sativum L, cv. Alaska ). Environmental and Experimental Botany 43: 1-9.
Niki, T., Rost, T.L., and Gladish, D.K. 1998. Regeneration of tissue following cavity formation in the vascular cylinders of pea roots (Pisum sativum L., cv. Alaska). American Journal of Botany 85: 17-24.
Niki, T., Gladish, D.K., Lu, P., and Rost, T.L. 1995. Cellular changes precede cavity formation in the vascular cylinders of pea roots (Pisum sativum L., cv. Alaska). International Journal of Plant Sciences 156: 290-302.
Gladish, D.K. and Rost, T.L. 1993. The effects of temperature on primary root growth dynamics and lateral root distribution in garden pea (Pisum sativum L., cv. "Alaska"). Environmental and Experimental Botany 33(2): 243-258.
Rost, Thomas L.; Pengzhe Lu, and Daniel Gladish (1991). The occurrence of vascular cavities and specialized parenchyma cells in the roots of cool-season legumes. Botanica Acta 104: 300-305.
Lu, Pengzhe; Daniel Gladish, and Thomas Rost (1991). Temperature induced cavities and specialized parenchyma cells in the vascular cylinder of pea roots. American Journal of Botany 78: 729-739.
Rost, Thomas L.; Daniel Gladish, Jody Steffen, and James Robbins (1990). Is there a relationship between branched amino acid pool size and cell cycle inhibition in roots treated with imidazolinone herbicides? Journal of Plant Growth Regulation 9: 227-232.