NDLI: Putrescine Influences Growth and Production of Coumarins in Hairy Root Cultures of Witloof Chicory (Cichorium intybus L. cv. Lucknow Local)

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Putrescine Influences Growth and Production of Coumarins in Hairy Root Cultures of Witloof Chicory (Cichorium intybus L. cv. Lucknow Local)

Content Provider	Springer Nature Link
Author	Bais, H. P. Sudha, G. Ravishankar, G. A.
Abstract	The effect of putrescine (Put) on the growth and production of two coumarins, esculin and esculetin, in hairy roots of chicory (Cichorium intybus L. cv. Lucknow local) was examined. To study the role of Put on growth and production of coumarins, polyamine inhibitors, namely α-dl-difluromethylornithine and α-dl-difluromethylarginine were used at 1 mM concentration. Put treatment at 1.5 mM produced a 1.9-fold increase in the growth of hairy roots, as well as the production of esculin and esculetin. The treatments with polyamine (PA) inhibitors resulted in much lower growth and production of coumarins compared with both 1.5-mM Put treatment and the control. Both free and conjugated PAs were studied over the whole culture period, and conjugates of all three PAs, namely Put, spermidine, and spermine, were higher than free PAs throughout the culture period. The treatments with PA inhibitors showed lower levels of endogenous PAs compared with Put-treated samples. The treatment with 1.5 mM Put showed maximum accumulation of endogenous conjugated Put (2,098 ± 157 nmoles gm−1 fresh weight). The production of esculin and esculetin was strictly correlated with growth in all treatments. Put at 1.5 mM resulted in greater length of primary root (18.3 ± 1.4 cm) as compared with the control (11 ± 0.9 cm) and larger numbers of secondary and tertiary roots.
Starting Page	159
Ending Page	165
Page Count	7
File Format	PDF
ISSN	07217595
Journal	Journal of Plant Growth Regulation
Volume Number	18
Issue Number	4
e-ISSN	14358107
Language	English
Publisher	Springer-Verlag
Publisher Date	1999-12-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Plant Science Agronomy and Crop Science

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Putrescine Influences Growth and Production of Coumarins in Hairy Root Cultures of Witloof Chicory (Cichorium intybus L. cv. Lucknow Local)

Putrescine influences growth and production of coumarins in transformed and untransformed root cultures of witloof chicory (Cichorium intybus L. cv. Lucknow local)

Influence of Polyamines on Growth of Hairy Root Cultures of Witloof Chicory (Cichorium intybus L. cv. Lucknow Local) and Formation of Coumarins

Putrescine influences growth and production of coumarins in transformed and untransformed root cultures of witloof chicory (Cichorium intybus L. cv. Lucknow local)

Influence of Polyamines on Growth of Hairy Root Cultures of Witloof Chicory (Cichorium intybus L. cv. Lucknow Local) and Formation of Coumarins

Production of esculin by hairy root cultures of chicory (Cichorium intybus L.cv. Lucknow local)

Putrescine and Silver Nitrate Influences Shoot Multiplication, In Vitro Flowering and Endogenous Titers of Polyamines in Cichorium intybus L. cv. Lucknow Local

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

Production of esculin by hairy root cultures of chicory (Cichorium intybus L.cv. Lucknow local).

Putrescine Influences Growth and Production of Coumarins in Hairy Root Cultures of Witloof Chicory (Cichorium intybus L. cv. Lucknow Local)

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