Dr. Youngjoo Oh

   Department of Molecular Ecology
 Phone:+49 (0)3641 57 1114Max Planck Institute for Chemical Ecology
 Fax:+49 (0)3641 57 1102Hans-Knöll-Straße 8
  emailD-07745 Jena

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Current Research
The roles of photoreceptors in root: Photoreceptor-mediated shoot and root development

Light is an important environmental signal for optimal growth and survival and plants have evolved several types of photoreceptors to respond to the varying light fluence, wave length, and direction. Multiple photoreceptors, red (R) / far-red (FR) light-sensing phytochromes (PHY) and blue/UV-A light-sensing cryptochromes (CRY), and phototropins (PHOT) play central roles in photomorphogenic processes such as in seed germination and dormancy, shade avoidance, flowering time, defense against herbivory and in establishing circadian rhythms. Surprisingly, many of these photoreceptors are highly and specifically expressed in dark-grown roots which suggest these photorecptors in roots have a role in plant growth and development. However, most current studies about photoreceptors are exclusively focused in shoots, and the functions of photorecptors in roots are unknown. The main goal of this project is to uncover the functions of these root-expressed photoreceptors in Nicotiana attenuata plants.
last updated on 2014-03-17