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Recent Advances in Understanding the Role of Growth Regulators in Plant Growth and Development in Vitro-I. Conventional Growth Regulators


Affiliations
1 Division of Biochemistry, Indian Agricultural Research Institute, Delhi - 110012, India
2 School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana, India
3 Department of Biotechnology, CGO Complex, Lodhi Road, New Delhi – 110053, India
4 Indian Council of Forestry Research and Education, Dehradun, India
5 Central Arid Zone Research Institute, Jodhpur – 342003, India
     

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Growth regulators, a diverse array of organic compounds, are critical components in determining developmental pathways in plants. They interact at the cellular level to produce physiological and morphological effects. Our understanding about transport, metabolism and mode of action of growth regulators in plants has considerably increased in the recent years. Discovery of the chemicals that interfere with synthesis, transport and action of endogenous growth regulators have further improved our knowledge regarding the role of plant growth regulators (PGRs) in plant's growth and development. A number of PGRs are being used in plant cell, tissue and organ cultures for decades, while many of them have recently been discovered and tested for their effects in vitro. In this review, we attempted to summarize the remarkable progress that has been made over the past decades towards understanding PGRs. The progress is further improving our knowledge of the molecular mechanisms of their action, and beginning to explain how PGRs not only have direct influence on cellular growth, but also control various aspects of plant's growth in vivo as well as in vitro.

Keywords

Abscisic Acid, Auxin, Cytokinin, Ethylene, Gibberellins, Plant Growth Regulators.
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About The Authors

Suresh Kumar
Division of Biochemistry, Indian Agricultural Research Institute, Delhi - 110012
India

Rohtas Singh
School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana
India

Sanjay Kalia
Department of Biotechnology, CGO Complex, Lodhi Road, New Delhi – 110053
India

S. K. Sharma
Indian Council of Forestry Research and Education, Dehradun
India

Andrajwant K. Kalia
Central Arid Zone Research Institute, Jodhpur – 342003
India


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  • Recent Advances in Understanding the Role of Growth Regulators in Plant Growth and Development in Vitro-I. Conventional Growth Regulators

Abstract Views: 273  |  PDF Views: 0

Authors

Suresh Kumar
Division of Biochemistry, Indian Agricultural Research Institute, Delhi - 110012, India
Rohtas Singh
School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana, India
Sanjay Kalia
Department of Biotechnology, CGO Complex, Lodhi Road, New Delhi – 110053, India
S. K. Sharma
Indian Council of Forestry Research and Education, Dehradun, India
Andrajwant K. Kalia
Central Arid Zone Research Institute, Jodhpur – 342003, India

Abstract


Growth regulators, a diverse array of organic compounds, are critical components in determining developmental pathways in plants. They interact at the cellular level to produce physiological and morphological effects. Our understanding about transport, metabolism and mode of action of growth regulators in plants has considerably increased in the recent years. Discovery of the chemicals that interfere with synthesis, transport and action of endogenous growth regulators have further improved our knowledge regarding the role of plant growth regulators (PGRs) in plant's growth and development. A number of PGRs are being used in plant cell, tissue and organ cultures for decades, while many of them have recently been discovered and tested for their effects in vitro. In this review, we attempted to summarize the remarkable progress that has been made over the past decades towards understanding PGRs. The progress is further improving our knowledge of the molecular mechanisms of their action, and beginning to explain how PGRs not only have direct influence on cellular growth, but also control various aspects of plant's growth in vivo as well as in vitro.

Keywords


Abscisic Acid, Auxin, Cytokinin, Ethylene, Gibberellins, Plant Growth Regulators.

References