Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


miami1219090430.pdf (3.74 MB)

ETD Abstract Container

Abstract Header

DIS1 AND DIS2 PLAY A ROLE IN TROPISMS IN ARABIDOPSIS THALIANA

Reboulet, James Christopher
http://rave.ohiolink.edu/etdc/view?acc_num=miami1219090430

Abstract Details

2008, Master of Science, Miami University, Botany.
To further understand the role of the cytoskeleton in gravitropism, weperformed orientation and curvature studies on seedlings of distorted1 (dis1) and distorted2 (dis2) mutants of Arabidopsis thaliana which are defective in the ARP (actin related protein) 2/3 complex. Recently, ARP 2/3 has been studied for its effects on cell morphology in trichomes. DISTORTED mutants are phenotypically characterized by defects in trichome branching, vesicle localization, and F-actin organization. Because ARP 2/3 is expressed throughout all tissues, we hypothesized a presence in gravisensing cells of hypocotyls and roots. We found that DIS1 enhanced gravitropism in roots of dark-grown seedlings, while DIS2 attenuated gravitropism in roots grown in the light. We also found that both DIS1 and DIS2 attenuated phototropism in hypocotyls grown in the dark, while in roots, DIS1 attenuated phototropism. This suggests a role for ARP 2/3 in cytoskeletal organization and these tropistic signaling pathways.
John Z. Kiss, PhD (Advisor)
Elisabeth E. Schussler, PhD (Committee Member)
Nicholas P. Money, PhD (Committee Member)
55 p.
Botany
arabidopsis thaliana; gravitropism; phototropism; actin binding proteins; ARP 2/3 complex; actin related protein 2/3 complex; time course; orientation; plants

Recommended Citations

Citations

  • Reboulet, J. C. (2008). DIS1 AND DIS2 PLAY A ROLE IN TROPISMS IN ARABIDOPSIS THALIANA [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1219090430

    APA Style (7th edition)

  • Reboulet, James. DIS1 AND DIS2 PLAY A ROLE IN TROPISMS IN ARABIDOPSIS THALIANA. 2008. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1219090430.

    MLA Style (8th edition)

  • Reboulet, James. "DIS1 AND DIS2 PLAY A ROLE IN TROPISMS IN ARABIDOPSIS THALIANA." Master's thesis, Miami University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=miami1219090430

    Chicago Manual of Style (17th edition)

miami1219090430
606
© 2008, all rights reserved.
This open access ETD is published by Miami University and OhioLINK.