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Accueil du site → Doctorat → Inde → 2008 → Comparative studies on the primary and secondary metabolites production by some parasitic angiosperms and their hosts of arid zone of rajasthan grown in vivo and in vitro

Maharaja Ganga Singh University (2008)

Comparative studies on the primary and secondary metabolites production by some parasitic angiosperms and their hosts of arid zone of rajasthan grown in vivo and in vitro

Rekha, swaran

Titre : Comparative studies on the primary and secondary metabolites production by some parasitic angiosperms and their hosts of arid zone of rajasthan grown in vivo and in vitro

Auteur : Rekha, swaran

Université de soutenance : Maharaja Ganga Singh University

Grade : Doctor of Philosophy (PhD) 2008

Préface
The present investigation deals with the study entitled "Comparative studies on the primary and secondary metabolites production by some parasitic angiosperm and their hosts of arid zone of Rajasthan grown in vivo and in vitro" has been divided into nine chapters. The introduction and review of literature of all the chapters has been given separately in the beginning where as general discussion and summary at the end of all chapters. Tables and graphs are given at the end of each chapter. Bibliography is given in the last. The two angiospermic parasitic plant species of arid zone of Rajasthan, Cistanche tubulosa Wight, and Orobanche cemua loefl. var.nepalensis DC Prodr. their hosts Calatropis procera R.Br., Calligonum polygonoides L. , Brassica campestris and Eruca sativa respectively were selected for the present investigation. Fully mature healthy plants and infected hosts plants were collected from various Districts (Bikaner, Hanumangarh, Sri Ganganager) of Rajasthan. The static cultures of Cistanche tubulosa and Orobanche cemua were established in our laboratory for study of their primary and secondary metabolites. Various plants parts of C.tubulosa, O. cemua and C.procera, C. polygonoides, B. campestris and E. sativa viz, roots, stem, leaf, flower, fruits, seeds and callus were analyzed for their metabolites production of endogenous ascorbic acid from in vitro cultures and the effect of Dglucose, auxins on growth and production of ascorbic acid have been studied for the first time on both the parasitic plant species. Alkaloids, flavonoids and antimicrobial activities has been observed, compounds isolated, identified and their quantitative estimation has been carried out from roots, stem, leaves, seeds, and tissue cultures of C. tubulosa and O.cemua. Effect of various concentrations of dl |3- phenylalanine on the growth of tissue and production of flavonoid contents has been investigated. Effect of various concentrations of PGR’S (2,4-D, lAA, NAA, Cytokinins etc.) and several others precursors ( phenylalanine, tyrosine ) to the culture media enhance the production of primary and secondary metabolites also been observed.

Mots clés : Life Sciences Plant and Animal Science Plant Sciences Products

Présentation et version intégrale (Shodhganga)

Page publiée le 9 avril 2021