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Abstract Detail

Teaching Section

Singh, Santokh [1], Gurkit, Grewal [2], Aman, Arora [2], Mehroke, Jarnail [2].

Phytohormones and Photomorphogenesis: Development of a New Research Project in Plant Development for Undergraduate Research Students.

We have developed a new research project in plant physiology and plant development for upper level undergraduate research students. Plant hormones have been involved in the regulation of photomorphogenesis, cell growth and leaf senescence in various plant species. However, there is little information about the precise requirement of optimum hormone concentrations and their interaction with other hormones in relation to growth, photomorphogenesis, and senescence in cotyledons. We used cucumber cotyledons as a model system to investigate the concentration-dependent effect of various plant hormones, such as cytokinins, brassinosteriods, auxins, gibberellins, and abscisic acid and light on cell expansion, protein profiles, and chlorophyll content. Cytokinins, especially 6 benzylamino purine (BAP), zeatin (Z), and kinetin (Ki) were the most effective hormones in increasing cell size, chlorophyll content, and the light harvesting complex B2 protein content in cucumber cotyledons exposed to light. The implications of the findings can help us to understand the precise roles of specific plant hormones and their interaction with light to regulate cell expansion and photomorphogenesis in cucumber cotyledons.

Broader Impacts:

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1 - University of British Columbia, Botany, #3529-6270 University Blvd., Vancouver, BC, V6T 1Z4, Canada
2 - University of British Columbia, #3529-6270 University Boulevard, Vancouver, BC, V6T 1Z4, Canada


Presentation Type: Poster:Posters for Sections
Session: P
Location: Grand Salon A - D/Riverside Hilton
Date: Monday, July 29th, 2013
Time: 5:30 PM
Number: PTE007
Abstract ID:950
Candidate for Awards:None

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