Journal
MOLECULAR PLANT
Volume 3, Issue 2, Pages 390-405Publisher
CELL PRESS
DOI: 10.1093/mp/ssq012
Keywords
Hormonal regulation; nutrition; secondary metabolism/natural products; transcriptome analysis; plant-insect interactions; Arabidopsis
Categories
Funding
- Biotechnology and Biological Sciences Research Council (BBSRC) [P17237, D006775]
- BBSRC [BB/D006775/1] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BB/D006775/1, P17237] Funding Source: researchfish
Ask authors/readers for more resources
The ability to adjust growth and development to the availability of mineral nutrients in the soil is an essential life skill of plants but the underlying signaling pathways are poorly understood. In Arabidopsis thaliana, shortage of potassium (K) induces a number of genes related to the phytohormone jasmonic acid (JA). Using comparative microarray analysis of wild-type and coil-16 mutant plants, we classified transcriptional responses to K with respect to their dependence on COI1, a central component of oxylipin signaling. Expression profiles obtained in a short-term experiment clearly distinguished between COI1-dependent and COI1-independent K-responsive genes, and identified both known and novel targets of JA-COI1-signaling. During long-term K-deficiency, coi-16 mutants displayed de novo responses covering similar functions as COI1-targets except for defense. A putative role of JA for enhancing the defense potential of K-deficient plants was further supported by the observation that plants grown on low K were less damaged by thrips than plants grown with sufficient K.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available