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Analysis of the impact of indole-3-acetic acid (IAA) on gene expression during leaf senescence in Arabidopsis thaliana
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Goren-Saglam, Nihal, Harrison, Elizabeth, Breeze, Emily, Oz, Gul and Buchanan-Wollaston, Vicky (2020) Analysis of the impact of indole-3-acetic acid (IAA) on gene expression during leaf senescence in Arabidopsis thaliana. Physiology and Molecular Biology of Plants, 26 (4). pp. 733-745. doi:10.1007/s12298-019-00752-7 ISSN 0971-5894.
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Official URL: https://doi.org/10.1007/s12298-019-00752-7
Abstract
Leaf senescence is an important developmental process for the plant life cycle. It is controlled by endogenous and environmental factors and can be posi- tively or negatively affected by plant growth regulators. It is characterised by major and significant changes in the patterns of gene expression. Auxin, especially indole-3- acetic acid (IAA), is a plant growth hormone that affects plant growth and development. The effect of IAA on leaf senescence is still unclear. In this study, we performed microarray analysis to investigate the role of IAA on gene expression during senescence in Arabidopsis thaliana. We sprayed IAA on plants at 3 different time points (27, 31 or 35 days after sowing). Following spraying, PSII activity of the eighth leaf was evaluated daily by measurement of chlorophyll fluorescence parameters. Our results show that PSII activity decreased following IAA application and the IAA treatment triggered different gene expression respon- ses in leaves of different ages.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) > Biological Sciences ( -2010) Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) |
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Journal or Publication Title: | Physiology and Molecular Biology of Plants | ||||||||
Publisher: | Springer | ||||||||
ISSN: | 0971-5894 | ||||||||
Official Date: | 6 February 2020 | ||||||||
Dates: |
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Volume: | 26 | ||||||||
Number: | 4 | ||||||||
Page Range: | pp. 733-745 | ||||||||
DOI: | 10.1007/s12298-019-00752-7 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Copyright Holders: | Prof. H.S. Srivastava Foundation for Science and Society | ||||||||
Date of first compliant deposit: | 15 March 2022 |
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