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The Arabidopsis pi4kIIIβ1β2 double mutant is salicylic acid-overaccumulating: a new example of salicylic acid influence on plant stature
M. Janda, V. Šašek, E. Ruelland,
Language English Country United States
Document type Journal Article, Research Support, Non-U.S. Gov't
NLK
Free Medical Journals
from 2006 to 1 year ago
PubMed Central
from 2006
Europe PubMed Central
from 2006 to 1 year ago
Medline Complete (EBSCOhost)
from 2011-01-01 to 2015-06-30
- MeSH
- 1-Phosphatidylinositol 4-Kinase genetics MeSH
- Arabidopsis anatomy & histology enzymology MeSH
- Plant Roots anatomy & histology MeSH
- Salicylic Acid metabolism MeSH
- Plant Leaves anatomy & histology MeSH
- Mutation genetics MeSH
- Arabidopsis Proteins genetics MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
Growth is the best visible sign of plant comfort. If plants are under stress, a difference in growth with control conditions can indicate that something is going wrong (or better). Phytohormones such as auxin, cytokinins, brassinosteroids or giberellins, are important growth regulators and their role in plant growth was extensively studied. On the other hand the role of salicylic acid (SA), a phytohormone commonly connected with plant defense responses, in plant growth is under-rated. However, studies with SA-overaccumulating mutants directly showed an influence of SA on plant growth. Recently we characterized an Arabidopsis SA-overaccumulating mutant impaired in phosphatidylinositol-4-kinases (pi4kIIIβ1β2). This mutant is dwarf. The crossing with mutants impaired in SA signaling revealed that pi4kIIIβ1β2 stunted rosette is due to high SA, while the short root length is not. This brings into evidence that upper and lower parts of the plants, even though they may share common phenotypes, are differently regulated.
References provided by Crossref.org
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