NDLI: Influence of exogenous hormones on growth and secondary metabolite production in hairy root cultures of Cichorium intybus L. CV. Lucknow local

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Influence of exogenous hormones on growth and secondary metabolite production in hairy root cultures of Cichorium intybus L. CV. Lucknow local

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In Vitro Cellular & Developmental Biology - Plant : Volume 37, Issue 1, January 2001

In Vitro Cellular & Developmental Biology - Plant : Volume 36

In Vitro Cellular & Developmental Biology - Plant : Volume 35

In Vitro Cellular & Developmental Biology - Plant : Volume 34

In Vitro Cellular & Developmental Biology - Plant : Volume 33

Influence of exogenous hormones on growth and secondary metabolite production in hairy root cultures of Cichorium intybus L. CV. Lucknow local

Content Provider	Springer Nature Link
Author	Bais, H.P. Sudha, G. George, J. Ravishankar, G. A.
Copyright Year	2001
Abstract	The effect of exogenously fed hormones on hairy root cultures of Cichorium intybus L. ev. Lucknow Local was studied. It was seen that auxin in the presence of low levels of kinetin induces rapid disorganization in hairy root cultures of C. intybus, ultimately to form suspension cultures, and this process was associated with the decrease in coumarin content in the cells. Of various treatments, it was observed that with an increase in the auxin: cytokinin ratio, the biomass decreased with the increase in disorganization index during the culture period of 28 d. The disorganization index was less when the inoculum size was enhanced to 10-fold. The total endogenous indole-3-acetic acid titers and indole-3-acetic acid oxidase activity also decreased with an increase in disorganization index, and was independent of initial inoculum size, with only a magnitude difference. The total coumarin content strictly correlated with growth in all the treatments. In contrast, exogenously supplied gibberellic acid at the 0.5 mg l$^{−1}$ level enhanced growth, coumarin content, and branching patterns over the control and other treatments on day 28. The exogenously fed growth regulators had an effect on growth, auxin and coumarin biosyntheses, wherein transformed roots treated with increasing concentration of auxin to cytokinin ratios lost their ability for coumarin biosynthesis. The behavior of hairy roots from an Indian cultivar of chicory upon growth regulator treatment is discussed in terms of growth, coumarin and auxin biosyntheses.
Starting Page	293
Ending Page	299
Page Count	7
File Format	PDF
ISSN	10545476
Journal	In Vitro Cellular & Developmental Biology - Plant
Volume Number	37
Issue Number	2
e-ISSN	14752689
Language	English
Publisher	Springer-Verlag
Publisher Date	2001-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cichorium intybus L. ev. Lucknow Local hairy roots IAA IAAO gibberellic acid 2,4-D NAA Kn Agrobacterium rhizogenes Plant Biochemistry Cell Biology Developmental Biology Plant Genetics & Genomics Plant Physiology
Content Type	Text
Resource Type	Article
Subject	Cell Biology Developmental Biology Plant Science Biotechnology

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