Dr. Sipes began teaching as an adjunct at the Winter Haven campus of PCC in January of 1993, soon after she and her husband moved to Polk County. She appreciates the value of the community college education, having taking advantage of the opportunity early in her education while in California. "As I took general education required courses, I had an opportunity to sample many areas, and was fortunate to have good instructors who could focus on their teaching. I changed majors a number of times, from Psychology to Ornamental Horticulture to Agricultural Engineering (to name a few) before transferring to a four year university to complete the Bachelor's degree," she states. Dr. Sipes eventually chose Botany as her major, and continued in that area of study for her Ph.D. and postdoctoral. She conducted research in the field of plant physiology for about 10 years, first on the effects of plant growth regulators (hormones) on Citrus fruit production, and later on photosynthesis in drought-adapted plants. Although research was interesting, Dr. Sipes found teaching to be a lot more fun. She taught at a private liberal arts college in southern California for one year, and was hooked! Dr. Sipes joined the Biology department at PCC in August of 2000.

 Education:

Postdoctoral Research Plant Physiologist, University of Calif., Riverside 1983 - 1984, 1985 - 1989

Ph.D. Botany, University of California, Riverside1982

B.S. Botany, California State Polytechnic University, Pomona 1979

 Awards:

 Graduated Summa Cum Laude, Cal Poly, Pomona (August 1979)
Botanical Society of America Student Award, Cal Poly, Pomona (1979)
CRC Freshman Chemistry Achievement Award, Cal Poly, Pomona (1978)

 Courses Taught:

  BSC 1005, BSC 1010, BSC 1011, BSC 1930

 Office:

  LAC 1159

Papers:

Einset, J. W., J. L. Lyon, and Deborah L. Sipes. 1981. Citrus tissue culture: Auxins in relation to abscission in excised pistils. Plant Physiol. 67:1109-1112.

Sipes, D. L., and J. W. Einset. 1982. Role of ethylene in stimulating stylar abscission in pistil explants of lemons. Physiol. Plant. 56: 6-10.

Sipes, D. L., and J. W. Einset. 1983. Cytokinin stimulation of abscission in lemon pistil explants. J. Plant Growth Regul. 2:73-80.

Sipes, D. L., and I. P. Ting. 1985. CAM and CAM modification in Peperomia camptotricha. Plant Physiol. 77:59-63.

Ting, I. P., and D. L. Sipes. 1985. Metabolism modifications of CAM-CAM idling and CAM cycling. In Nitrogen Fixation and CO2 Metabolism, P. W. Ludden and J. E. Burris, eds. Elsevier, NY, pp. 371-378.

Sipes, D. L., and I. P. Ting. 1989. Kinetic properties of phosphoenolpy-ruvate carboxylase in Peperomia camptotricha. Plant Physiol. 91:1050-1055.

Ting, I.P., Hann, J., Sipes, D., Patel, A. 1993. Expression of P-enolpyruvate carboxylase and other aspects of CAM during the development of Peperomia camptotricha leaves. Botanica Acta 106:313-319.
and other aspects of CAM during the development of Peperomia camtotricha leaves. Botanica Acta 106:313-319.

Bastide, B., Sipes, D., Hann, J., and Ting, I.P. 1993. Effect of severe water stress on aspects of crassulacean acid metabolism in Xerosicyos. Plant Physiol. 103:1089-1096.

Ting, I.P., Patel, A., Sipes, D.L., Reid, P.D. 1994. Differential expression of photosynthesis genes in leaf tissue layers of Peperomia as revealed by tissue printing. Am. J. Bot. 81:414-422.
J. Bot. 81:414-422.

Interests:

  

Email:

  DSipes@polk.edu

Phone:

  (863) 297-1010 ext. 6153

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