Document Detail

Jasmonic acid, protein phosphatase inhibitor, metals and UV-irradiation increased momilactone A and B concentrations in the moss Hypnum plumaeforme.
MedLine Citation:
PMID:  19232772     Owner:  NLM     Status:  MEDLINE    
Momilactone A and B have been found only in rice and the moss, Hypnum plumaeforme, although both plants are taxonomically quite distinct. The endogenous concentrations of momilactone A and B in H. plumaeforme were 58.7 and 24.3 microg/g dry weight, respectively. UV-irradiation increased the concentrations of momilactone A and B. The concentrations of momilactone A and B, respectively, became 14- and 15-fold greater than those of non-UV-irradiated control. CuCl2 and FeCl2 (1 mmol/L) treatments also increased momilactone A and B concentrations by 2.7- to 6.1-fold and 2.9- to 6.3-fold, respectively. In addition, the protein phosphatase inhibitor, cantharidin, and jasmonic acid increased momilactone A and B concentrations in H. plumaeforme. Cantharidin acts as an elicitor and jasmonic acid is an important signaling molecule regulating inducible defense genes against the pathogen infection. Momilactone A and B, respectively, were increased 12- and 11-fold by 200 micromol/L cantharidin, and 14- and 15-fold by 100 micromol/L jasmonic acid compared with non-treated controls. As momilactone A and B are phytoalexins, these compounds may play an important role in defense responses against biotic and abiotic stress conditions in H. plumaeforme.
Hisashi Kato-Noguchi; Kanami Kobayashi
Publication Detail:
Type:  Journal Article     Date:  2009-02-20
Journal Detail:
Title:  Journal of plant physiology     Volume:  166     ISSN:  1618-1328     ISO Abbreviation:  J. Plant Physiol.     Publication Date:  2009 Jul 
Date Detail:
Created Date:  2009-05-19     Completed Date:  2009-07-24     Revised Date:  2009-11-25    
Medline Journal Info:
Nlm Unique ID:  9882059     Medline TA:  J Plant Physiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1118-22     Citation Subset:  IM    
Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki, Kagawa 761-0795, Japan.
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MeSH Terms
Bryopsida* / drug effects,  metabolism,  radiation effects
Cantharidin / pharmacology*
Cyclopentanes / pharmacology*
Diterpenes / metabolism*
Enzyme Inhibitors / pharmacology
Gene Expression Regulation, Plant / drug effects,  radiation effects
Lactones / metabolism*
Metals / pharmacology*
Oxylipins / pharmacology*
Ultraviolet Rays*
Reg. No./Substance:
0/Cyclopentanes; 0/Diterpenes; 0/Enzyme Inhibitors; 0/Lactones; 0/Metals; 0/Oxylipins; 0/momilactone B; 51415-07-7/momilactone A; 56-25-7/Cantharidin; 6894-38-8/jasmonic acid
Comment In:
Plant Signal Behav. 2009 Aug;4(8):737-9   [PMID:  19820317 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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