Professor

544 Mosler Hall, Hamilton Campus
gladisdk@MiamiOH.edu
513-785-3244

Biographical Information

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 effects of temperature on the development and physiology of root systems using physico-chemical techniques and computer image analysis. I completed a study that suggests the environment has influences on internal timing mechanisms (biological clocks) that regulate stage-specific developmental events beyond what can be attributed to simple thermodynamics. More recently we have been studying the effects of flooding on root anatomy and development in legumes, especially vascular aerenchyma formation and programmed cell death. We are now evaluating the cell wall changes and gene expression associated with vascular aerenchyma formation.  I will be continuing studies on the effects of temperature, flooding, and other environmental factors on the developmental anatomy and physiology of roots.

Courses Taught

• BIO/MBI 115: Biological Concepts
• BIO 131: Plants, Humanity, and the Environment
• BIO 171: Human Anatomy and Physiology
• BIO 176: Ecology of North America
• BIO 203: Introduction to Cell Biology
• BIO 203L: Plant Cell Biology Laboratory
• BIO 314: Plant and Fungal Diversity
• BIO 402/502: Plant Anatomy

Selected Publications

• Takahashi M, Niki T, Deem KD, Gladish DK (2016).  Vascular cavity formation enhances oxygen availability during flooding in root tips of Phaseolus coccineus L. primary roots.  International Journal of Plant Sciences (177:277-286).
• Gladish DK (2015).  Vascular aerenchyma and PCD, in A. Gunawardena and P. McCabe, Eds., Plant Programmed Cell Death, Springer, Berlin.
• Niki T, Saito S, Gladish DK (2015).  Granular bodies in root primary meristem cells of Zea mays L. var. Cuscoensis K. (Poaceae) that enter young vacuoles by invagination: a novel ribophagy mechanism.  Protoplasma 251: 1141-1149.
• Sarkar P, Gladish DK (2012). Hypoxic Stress Triggers a Programmed Cell Death Pathway to Induce Vascular Cavity Formation in Pisum Sativum Roots. Physiologia Plantarum 146:413-426.
• Niki T, Takahashi T, Gladish, DK (2011). Comparison of the effects of flooding vs. low-oxygen gas on pea (Pisum sativum L. cv. ‘Alaska’) primary roots. Plant Root 5:31-39.
• Gladish DK, Niki T (2008). Ethylene is involved in vascular cavity formation in pea (Pisum sativum) primary roots. Plant Root 2: 38-45.
• Sarkar P, Niki T, Gladish, DK (2008). Changes in cellular ultrastructure induced by sudden flooding at 25° C in Pisum sativum(Fabaceae) primary roots. American Journal of Botany 95:1-12.
• Gladish DK, Xu J, 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 97: 895-902.
• Niki T, Gladish, DK (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 DK, Sutter EG, Rost TL (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 DK, 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.