Literature DB >> 6957874

Gamma-irradiation activates biochemical systems: induction of nitrate reductase activity in plant callus.

K N Pandey, P S Sabharwal.   

Abstract

Gamma-irradiation induced high levels of nitrate reductase activity (NADH:nitrate oxidoreductase, EC 1.6.6.1) in callus of Haworthia mirabilis Haworth. Subcultures of gamma-irradiated tissues showed autonomous growth on minimal medium. We were able to mimic the effects of gamma-irradiation by inducing nitrate reductase activity in unirradiated callus with exogenous auxin and kinetin. These results revealed that induction of nitrate reductase activity by gamma-irradiation is mediated through in vitro activation of hormone synthesis in callus cells.

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Year:  1982        PMID： 6957874      PMCID： PMC346923          DOI： 10.1073/pnas.79.18.5460

Source DB:  PubMed          Journal:  Proc Natl Acad Sci U S A        ISSN： 0027-8424            Impact factor:   11.205


  24 in total

1.  On the activation of certain essential biosynthetic systems in cells of Vinca rosea L.

Authors:  A C BRAUN; H N WOOD
Journal:  Proc Natl Acad Sci U S A       Date:  1962-10-15       Impact factor: 11.205

2.  Studies on the regulation of certain essential biosynthetic systems in normal and crown-gall tumor cells.

Authors:  H N WOOD; A C BRAUN
Journal:  Proc Natl Acad Sci U S A       Date:  1961-12-15       Impact factor: 11.205

3.  Cell-division factors from Vinca rosca L. crown gall tumor tissue.

Authors:  C O Miller
Journal:  Proc Natl Acad Sci U S A       Date:  1975-05       Impact factor: 11.205

4.  Revised Methods for Purification of Ribosyl-trans-zeatin from Vinca rosea L. Crown Gall Tumor Tissue.

Authors:  C O Miller
Journal:  Plant Physiol       Date:  1975-03       Impact factor: 8.340

5.  A Physiological Basis for Autonomous Growth of the Crown-Gall Tumor Cell.

Authors:  A C Braun
Journal:  Proc Natl Acad Sci U S A       Date:  1958-04       Impact factor: 11.205

Review 6.  The relevance of plant tumor systems to an understanding of the basic cellular mechanisms underlying tumorigenesis.

Authors:  A C Braun
Journal:  Prog Exp Tumor Res       Date:  1972

7.  Wound tumor virus: purification and fractionation of the double-stranded ribonucleic acid.

Authors:  H A Wood; G Streissle
Journal:  Virology       Date:  1970-02       Impact factor: 3.616

8.  Nitrate reductase in Agrostemma githago. Comparison of the inductive effects of nitrate and cytokinin.

Authors:  H Kende; T C Shen
Journal:  Biochim Biophys Acta       Date:  1972-11-24

9.  Ribosyl-trans-Zeatin, A Major Cytokinin Produced by Crown Gall Tumor Tissue.

Authors:  C O Miller
Journal:  Proc Natl Acad Sci U S A       Date:  1974-02       Impact factor: 11.205

10.  Enhancement of Nitrate Reductase Activity by Benzyladenine in Agrostemma githago.

Authors:  H Kende; H Hahn; S E Kays
Journal:  Plant Physiol       Date:  1971-12       Impact factor: 8.340
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