Plant Physiol. Illumina
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Plant Physiology 57:315-319 (1976)
© 1976 American Society of Plant Biologists

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Web of Science (210)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Kar, M.
Right arrow Articles by Mishra, D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Kar, M.
Right arrow Articles by Mishra, D.
Agricola
Right arrow Articles by Kar, M.
Right arrow Articles by Mishra, D.
Articles

Catalase, Peroxidase, and Polyphenoloxidase Activities during Rice Leaf Senescence 1

Manoranjan Kar and Dinabandhu Mishra2

a Laboratory of Plant Biochemistry and Enzymology, Department of Botany, Utkal University, Bhubaneswar 751004, Orissa, India

The activities of catalase, peroxidase, and polyphenoloxidase were studied in attached and detached rice (Oryza sativa L. CV. Ratna) leaves. Catalase activity decreased while peroxidase and polyphenoloxidase activities increased during senescence of both attached and detached rice leaves. Kinetic (5 µM) and benzimidazole (1 mM), which are known to delay the senescence of detached rice leaves, retarded the decrease of catalase activity during detached leaf senescence. On the other hand, these chemicals accelerated the increase of peroxidase and polyphenoloxidase activities over the water control. Total phenolics accumulated in detached and darkened rice leaves, but in attached leaf senescence in light no accumulation of phenolics was observed.

2 Present address: Professor of Botany, Ravenshaw College, Cuttack 753003, Orissa, India.

1 Part VIII of the series "Studies on Leaf Senescence." Listed as Paper No. 14 of the Laboratory of Plant Biochemistry and Enzymology, Department of Botany, Utkal University.




This article has been cited by other articles:


Home page
 Tree PhysiolHome page
R. K. Tewari, P. Kumar, and P. N. Sharma
Morphology and oxidative physiology of boron-deficient mulberry plants
Tree Physiol, November 20, 2009; (2009) tpp093v1.
[Abstract] [Full Text] [PDF]

Home page
 Evid Based Complement Alternat MedHome page
A. S. Abu El-Saad and H. M. Mahmoud
Phytic Acid Exposure Alters AflatoxinB1-induced Reproductive and Oxidative Toxicity in Albino Rats (Rattus norvegicus)
Evid. Based Complement. Altern. Med., September 1, 2009; 6(3): 331 - 341.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1976 by the American Society of Plant Biologists