Plant Cell SoftGenetics
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

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 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 ISI Web of Science (78)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Yang, Z.
Right arrow Articles by Cramer, C. L.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Yang, Z.
Right arrow Articles by Cramer, C. L.
Agricola
Right arrow Articles by Yang, Z.
Right arrow Articles by Cramer, C. L.

THE PLANT CELL, Vol 3, Issue 4 397-405, Copyright © 1991 by American Society of Plant Biologists

RESEARCH ARTICLES

Differential Activation of Potato 3-Hydroxy-3-methylglutaryl Coenzyme A Reductase Genes by Wounding and Pathogen Challenge

Z. Yang, H. Park, G. H. Lacy and C. L. Cramer
Laboratory for Molecular Biology of Plant Stress, Department of Plant Pathology, Physiology, and Weed Science, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0330

Potato genes encoding 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGR) were expressed in response to pathogen, elicitor, and wounding. HMGR catalyzes the rate-limiting step in isoprenoid biosynthesis leading to accumulation of phytoalexins and steroid glycoalkaloids. Wounding caused increases in HMGR mRNA levels. A rapid and transient peak occurred 30 minutes after wounding, followed by a slower peak at 14 hours; both were correlated with increased enzyme activity. Induction of HMGR mRNA by the soft rot pathogen Erwinia carotovora subsp carotovora or arachidonic acid began 8 hours after challenge and continued through 22 hours. Potato HMGR is encoded by a gene family. An HMGR gene-specific probe was used to demonstrate that one isogene of the HMGR family is pathogen activated and is distinct from isogene(s) that are wound activated. This provides evidence that defense-related increases in HMGR activity are due to mRNA level increases and that HMGR isogenes are activated differentially by wounding or pathogen challenge.


This article has been cited by other articles:


Home page
 Plant Physiol.Home page
A. Hemmerlin and T. J. Bach
Farnesol-Induced Cell Death and Stimulation of 3-Hydroxy-3-Methylglutaryl-Coenzyme A Reductase Activity in Tobacco cv Bright Yellow-2 Cells
Plant Physiology, August 1, 2000; 123(4): 1257 - 1268.
[Abstract] [Full Text]

Home page
 Plant Cell PhysiolHome page
T. Shoji, Y. Yamada, and T. Hashimoto
Jasmonate Induction of Putrescine N-Methyltransferase Genes in the Root of Nicotiana sylvestris
Plant Cell Physiol., July 1, 2000; 41(7): 831 - 839.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications THE PLANT CELL PLANT PHYSIOLOGY
Copyright © 1991 by the American Society of Plant Biologists