Role of ribosomal proteins in salt-stress regulation of gravitropism in Arabidopsis thaliana

High salinity is an important soil contaminant that is detrimental to plants and causes ionic and osmotic stress. In order to avoid these harmful stimuli, plants have developed mechanisms to change growth patterns. Arabidopsis roots cope with high salinity by initiating salt stress responses like ro...

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Main Author: Tai, June Jing Yi
Other Authors: José R. Dinneny
Format: Final Year Project
Language:English
Published: 2009
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Online Access:http://hdl.handle.net/10356/15606
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-156062023-02-28T18:06:23Z Role of ribosomal proteins in salt-stress regulation of gravitropism in Arabidopsis thaliana Tai, June Jing Yi José R. Dinneny School of Biological Sciences Temasek Life Sciences Laboratory Temasek Laboratories Ng, Chong Han DRNTU::Science::Biological sciences::Botany::Plant physiology High salinity is an important soil contaminant that is detrimental to plants and causes ionic and osmotic stress. In order to avoid these harmful stimuli, plants have developed mechanisms to change growth patterns. Arabidopsis roots cope with high salinity by initiating salt stress responses like root bending and agravitropism. From previous studies, we know that ribosomal proteins are down-regulated in response to multiple stresses in the epidermis, a tissue that is important for gravitropism. We want to determine what role ribosomal proteins play in regulating gravitropism during the salt stress response. With the use of the rpl5b mutant, we found that RPL5B may be important for meristem maintenance and root gravitropic response. In addition, RPL5B may also be involved in the roots’ auxin response and/or transport, which facilitates root gravitropism. Furthermore, we provided visualised gene expression patterns of the salt-regulated ribosomal proteins by using GFP reporters. Lastly, we tested whether root bending and agravitropism can function as an avoidance mechanism. Bachelor of Science in Biological Sciences 2009-05-13T08:18:13Z 2009-05-13T08:18:13Z 2009 2009 Final Year Project (FYP) http://hdl.handle.net/10356/15606 en Nanyang Technological University 50 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Science::Biological sciences::Botany::Plant physiology
spellingShingle DRNTU::Science::Biological sciences::Botany::Plant physiology
Tai, June Jing Yi
Role of ribosomal proteins in salt-stress regulation of gravitropism in Arabidopsis thaliana
description High salinity is an important soil contaminant that is detrimental to plants and causes ionic and osmotic stress. In order to avoid these harmful stimuli, plants have developed mechanisms to change growth patterns. Arabidopsis roots cope with high salinity by initiating salt stress responses like root bending and agravitropism. From previous studies, we know that ribosomal proteins are down-regulated in response to multiple stresses in the epidermis, a tissue that is important for gravitropism. We want to determine what role ribosomal proteins play in regulating gravitropism during the salt stress response. With the use of the rpl5b mutant, we found that RPL5B may be important for meristem maintenance and root gravitropic response. In addition, RPL5B may also be involved in the roots’ auxin response and/or transport, which facilitates root gravitropism. Furthermore, we provided visualised gene expression patterns of the salt-regulated ribosomal proteins by using GFP reporters. Lastly, we tested whether root bending and agravitropism can function as an avoidance mechanism.
author2 José R. Dinneny
author_facet José R. Dinneny
Tai, June Jing Yi
format Final Year Project
author Tai, June Jing Yi
author_sort Tai, June Jing Yi
title Role of ribosomal proteins in salt-stress regulation of gravitropism in Arabidopsis thaliana
title_short Role of ribosomal proteins in salt-stress regulation of gravitropism in Arabidopsis thaliana
title_full Role of ribosomal proteins in salt-stress regulation of gravitropism in Arabidopsis thaliana
title_fullStr Role of ribosomal proteins in salt-stress regulation of gravitropism in Arabidopsis thaliana
title_full_unstemmed Role of ribosomal proteins in salt-stress regulation of gravitropism in Arabidopsis thaliana
title_sort role of ribosomal proteins in salt-stress regulation of gravitropism in arabidopsis thaliana
publishDate 2009
url http://hdl.handle.net/10356/15606
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