Effects of sugars on the rhizoid development of the lower plant, Marchantia Polymorpha

Marchantia polymorpha is a bryophyte and is a lower plant compared to the angiosperm Arabidopsis thaliana. This makes it a good model to study the evolution of early plants. Marchantia has rhizoids instead of roots which is hypothesised to be the equivalent to the root hairs of a true plant. Glucose...

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Main Author: Maisur Mohamad Zahir
Other Authors: CHEN Zhong
Format: Final Year Project
Language:English
Published: 2014
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Online Access:http://hdl.handle.net/10356/60264
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-602642019-12-10T13:56:55Z Effects of sugars on the rhizoid development of the lower plant, Marchantia Polymorpha Maisur Mohamad Zahir CHEN Zhong School of Biological Sciences DRNTU::Science::Biological sciences::Botany Marchantia polymorpha is a bryophyte and is a lower plant compared to the angiosperm Arabidopsis thaliana. This makes it a good model to study the evolution of early plants. Marchantia has rhizoids instead of roots which is hypothesised to be the equivalent to the root hairs of a true plant. Glucose has been shown to increase root length and the number of root hairs in Arabidopsis. Glucose is also known to regulate genes affected by the phytohomone indole-acetic acid, IAA. It is of interest to observe if sugars and phytohormones are capable of influencing the rhizoid development in marchantia as it may suggest that these features are conserved. Marchantia thalli were grown in media with different sugars, increasing sucrose concentration and a mixture of sucrose and phytohormones. Our studies show that sucrose, glucose and maltose promote rhizoid growth. Rhizoid formation also observed with increasing concentrations of sucrose. Inhibiting IAA biosynthesis using 5-methyl-tryptophan resulted in reduced rhizoid formation even in the presence of high concentrations of sucrose. This suggests that there is a link between sugars and the Phytohormone IAA. Bachelor of Science in Biological Sciences 2014-05-26T04:25:01Z 2014-05-26T04:25:01Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/60264 en Nanyang Technological University 22 p. application/msword
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Science::Biological sciences::Botany
spellingShingle DRNTU::Science::Biological sciences::Botany
Maisur Mohamad Zahir
Effects of sugars on the rhizoid development of the lower plant, Marchantia Polymorpha
description Marchantia polymorpha is a bryophyte and is a lower plant compared to the angiosperm Arabidopsis thaliana. This makes it a good model to study the evolution of early plants. Marchantia has rhizoids instead of roots which is hypothesised to be the equivalent to the root hairs of a true plant. Glucose has been shown to increase root length and the number of root hairs in Arabidopsis. Glucose is also known to regulate genes affected by the phytohomone indole-acetic acid, IAA. It is of interest to observe if sugars and phytohormones are capable of influencing the rhizoid development in marchantia as it may suggest that these features are conserved. Marchantia thalli were grown in media with different sugars, increasing sucrose concentration and a mixture of sucrose and phytohormones. Our studies show that sucrose, glucose and maltose promote rhizoid growth. Rhizoid formation also observed with increasing concentrations of sucrose. Inhibiting IAA biosynthesis using 5-methyl-tryptophan resulted in reduced rhizoid formation even in the presence of high concentrations of sucrose. This suggests that there is a link between sugars and the Phytohormone IAA.
author2 CHEN Zhong
author_facet CHEN Zhong
Maisur Mohamad Zahir
format Final Year Project
author Maisur Mohamad Zahir
author_sort Maisur Mohamad Zahir
title Effects of sugars on the rhizoid development of the lower plant, Marchantia Polymorpha
title_short Effects of sugars on the rhizoid development of the lower plant, Marchantia Polymorpha
title_full Effects of sugars on the rhizoid development of the lower plant, Marchantia Polymorpha
title_fullStr Effects of sugars on the rhizoid development of the lower plant, Marchantia Polymorpha
title_full_unstemmed Effects of sugars on the rhizoid development of the lower plant, Marchantia Polymorpha
title_sort effects of sugars on the rhizoid development of the lower plant, marchantia polymorpha
publishDate 2014
url http://hdl.handle.net/10356/60264
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