Kinetin regulates plant growth and biochemical changes during maturation and senescence of leaves, flowers, and pods of Cajanus cajan L.

D. Mukherjee; R. Kumar

doi:10.1007/s10535-007-0016-x

Kinetin regulates plant growth and biochemical changes during maturation and senescence of leaves, flowers, and pods of Cajanus cajan L.

D. Mukherjee, R. Kumar

Kurukshetra University

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

Aspects of plant growth such as height, branch number, leaf number, leaf area, pod area, 100-seed mass, etc., were correlated with biochemical changes such as contents of chlorophyll (Chl), proteins, DNA, and RNA, and protease activity during development and senescent phases in leaves, flowers, and pods of Cajanus cajan L. cv. UPAS-120 after treatments with kinetin (Kn). A significant increase was noticed in branch number, leaf number, leaf area, and seed mass while other growth processes registered a small increase after Kn application. Effectiveness of 5 μM Kn was also noticed in minimizing the loss of Chls, proteins, and nucleic acids as well as reducing the protease activity during maturity and senescence. Chl a/b ratio maintained a high value up to 30-d followed by a decline in leaves while flowers registered much lower ratio at 20-d-age. Pods were unique in having relatively lower ratio of Chl a/b in comparison to leaves.

Original language	English
Pages (from-to)	80-85
Number of pages	6
Journal	Biologia Plantarum
Volume	51
Issue number	1
DOIs	https://doi.org/10.1007/s10535-007-0016-x
State	Published - Mar 2007
Externally published	Yes

Bibliographical note

Funding Information:
Received 9 August 2005, accepted 24 April 2006. Abbreviations: BA - benzyladenine; Chl - chlorophyll; CK - cytokinin; Kn - kinetin (Kn0, Kn1, Kn2, and Kn3 - kinetin 0, 5, 50 and 500 μM, respectively). Acknowledgements: The senior and junior authors thank the Indian Council of Agricultural Research, New Delhi for the grant of a research project and a senior research fellowship respectively for this work. * Corresponding author; e-mail: [email protected]

Funding

Received 9 August 2005, accepted 24 April 2006. Abbreviations: BA - benzyladenine; Chl - chlorophyll; CK - cytokinin; Kn - kinetin (Kn0, Kn1, Kn2, and Kn3 - kinetin 0, 5, 50 and 500 μM, respectively). Acknowledgements: The senior and junior authors thank the Indian Council of Agricultural Research, New Delhi for the grant of a research project and a senior research fellowship respectively for this work. * Corresponding author; e-mail: [email protected]

Funders	Funder number
Indian Council of Agricultural Research

Keywords

Chlorophylls
DNA
Growth parameters
Protease activity
Proteins
RNA

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title = "Kinetin regulates plant growth and biochemical changes during maturation and senescence of leaves, flowers, and pods of Cajanus cajan L.",

abstract = "Aspects of plant growth such as height, branch number, leaf number, leaf area, pod area, 100-seed mass, etc., were correlated with biochemical changes such as contents of chlorophyll (Chl), proteins, DNA, and RNA, and protease activity during development and senescent phases in leaves, flowers, and pods of Cajanus cajan L. cv. UPAS-120 after treatments with kinetin (Kn). A significant increase was noticed in branch number, leaf number, leaf area, and seed mass while other growth processes registered a small increase after Kn application. Effectiveness of 5 μM Kn was also noticed in minimizing the loss of Chls, proteins, and nucleic acids as well as reducing the protease activity during maturity and senescence. Chl a/b ratio maintained a high value up to 30-d followed by a decline in leaves while flowers registered much lower ratio at 20-d-age. Pods were unique in having relatively lower ratio of Chl a/b in comparison to leaves.",

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doi = "10.1007/s10535-007-0016-x",

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AU - Kumar, R.

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N2 - Aspects of plant growth such as height, branch number, leaf number, leaf area, pod area, 100-seed mass, etc., were correlated with biochemical changes such as contents of chlorophyll (Chl), proteins, DNA, and RNA, and protease activity during development and senescent phases in leaves, flowers, and pods of Cajanus cajan L. cv. UPAS-120 after treatments with kinetin (Kn). A significant increase was noticed in branch number, leaf number, leaf area, and seed mass while other growth processes registered a small increase after Kn application. Effectiveness of 5 μM Kn was also noticed in minimizing the loss of Chls, proteins, and nucleic acids as well as reducing the protease activity during maturity and senescence. Chl a/b ratio maintained a high value up to 30-d followed by a decline in leaves while flowers registered much lower ratio at 20-d-age. Pods were unique in having relatively lower ratio of Chl a/b in comparison to leaves.

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KW - Proteins

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Kinetin regulates plant growth and biochemical changes during maturation and senescence of leaves, flowers, and pods of Cajanus cajan L.

Abstract

Bibliographical note

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Keywords

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