Understanding the shoot apical meristem regulation: a study of the phytohormones, auxin and cytokinin, in rice

Auxin and cytokinin regulate different critical processes involved in plant growth and environmental feedbacks. These plant hormones act either synergistically or antagonistically to control the organisation, formation and maintenance of meristem. Meristem cells can be divided to generate new tissue...

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Main Authors: Azizi, Parisa, Yusop, Mohd Rafii, Mahmood, Maziah, Abdullah, Siti Nor Akmar, Musa, Mohamed Hanafi, Abdul Latif, Muhammad, Abdul Rashid, Azmi, Sahebi, Mahbod
Format: Article
Published: Elsevier 2015
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author Azizi, Parisa
Yusop, Mohd Rafii
Mahmood, Maziah
Abdullah, Siti Nor Akmar
Musa, Mohamed Hanafi
Abdul Latif, Muhammad
Abdul Rashid, Azmi
Sahebi, Mahbod
author_facet Azizi, Parisa
Yusop, Mohd Rafii
Mahmood, Maziah
Abdullah, Siti Nor Akmar
Musa, Mohamed Hanafi
Abdul Latif, Muhammad
Abdul Rashid, Azmi
Sahebi, Mahbod
author_sort Azizi, Parisa
collection UPM
description Auxin and cytokinin regulate different critical processes involved in plant growth and environmental feedbacks. These plant hormones act either synergistically or antagonistically to control the organisation, formation and maintenance of meristem. Meristem cells can be divided to generate new tissues and organs at the locations of plant postembryonic development. The aboveground plant organs are created by the shoot apical meristem (SAM). It has been proposed that the phytohormone, cytokinin, plays a positive role in the shoot meristem function, promotes cell expansion and promotes an increasing size of the meristem in Arabidopsis, whereas it has the reverse effects in the root apical meristem (RAM). Over the last few decades, it has been believed that the apically derived auxin suppresses the shoot branching by inactivating the axillary buds. However, it has recently become clear that the mechanism of action of auxinis indirect and multifaceted. In higher plants, the regulatory mechanisms of the SAM formation and organ separation are mostly unknown. This study reviews the effects and functions of cytokinin and auxin at the shoot apical meristem. This study also highlights the merger of the transcription factor activity with the actions of cytokinin/auxin and their complex interactions with the shoot meristem in rice.
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spelling upm.eprints-359202016-02-11T05:14:34Z http://psasir.upm.edu.my/id/eprint/35920/ Understanding the shoot apical meristem regulation: a study of the phytohormones, auxin and cytokinin, in rice Azizi, Parisa Yusop, Mohd Rafii Mahmood, Maziah Abdullah, Siti Nor Akmar Musa, Mohamed Hanafi Abdul Latif, Muhammad Abdul Rashid, Azmi Sahebi, Mahbod Auxin and cytokinin regulate different critical processes involved in plant growth and environmental feedbacks. These plant hormones act either synergistically or antagonistically to control the organisation, formation and maintenance of meristem. Meristem cells can be divided to generate new tissues and organs at the locations of plant postembryonic development. The aboveground plant organs are created by the shoot apical meristem (SAM). It has been proposed that the phytohormone, cytokinin, plays a positive role in the shoot meristem function, promotes cell expansion and promotes an increasing size of the meristem in Arabidopsis, whereas it has the reverse effects in the root apical meristem (RAM). Over the last few decades, it has been believed that the apically derived auxin suppresses the shoot branching by inactivating the axillary buds. However, it has recently become clear that the mechanism of action of auxinis indirect and multifaceted. In higher plants, the regulatory mechanisms of the SAM formation and organ separation are mostly unknown. This study reviews the effects and functions of cytokinin and auxin at the shoot apical meristem. This study also highlights the merger of the transcription factor activity with the actions of cytokinin/auxin and their complex interactions with the shoot meristem in rice. Elsevier 2015-02 Article PeerReviewed Azizi, Parisa and Yusop, Mohd Rafii and Mahmood, Maziah and Abdullah, Siti Nor Akmar and Musa, Mohamed Hanafi and Abdul Latif, Muhammad and Abdul Rashid, Azmi and Sahebi, Mahbod (2015) Understanding the shoot apical meristem regulation: a study of the phytohormones, auxin and cytokinin, in rice. Mechanisms of Development, 135. pp. 1-15. ISSN 0925-4773; ESSN: 1872-6356 http://www.sciencedirect.com/science/article/pii/S0925477314000689 10.1016/j.mod.2014.11.001
spellingShingle Azizi, Parisa
Yusop, Mohd Rafii
Mahmood, Maziah
Abdullah, Siti Nor Akmar
Musa, Mohamed Hanafi
Abdul Latif, Muhammad
Abdul Rashid, Azmi
Sahebi, Mahbod
Understanding the shoot apical meristem regulation: a study of the phytohormones, auxin and cytokinin, in rice
title Understanding the shoot apical meristem regulation: a study of the phytohormones, auxin and cytokinin, in rice
title_full Understanding the shoot apical meristem regulation: a study of the phytohormones, auxin and cytokinin, in rice
title_fullStr Understanding the shoot apical meristem regulation: a study of the phytohormones, auxin and cytokinin, in rice
title_full_unstemmed Understanding the shoot apical meristem regulation: a study of the phytohormones, auxin and cytokinin, in rice
title_short Understanding the shoot apical meristem regulation: a study of the phytohormones, auxin and cytokinin, in rice
title_sort understanding the shoot apical meristem regulation a study of the phytohormones auxin and cytokinin in rice
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