Journal
JOURNAL OF EXPERIMENTAL BOTANY
Volume 66, Issue 17, Pages 5351-5365Publisher
OXFORD UNIV PRESS
DOI: 10.1093/jxb/erv285
Keywords
Arabidopsis; evolution; gene expression; INFLORESCENCE DEFICIENT IN ABSCISSION; peptide ligand
Categories
Funding
- Research Council of Norway through the FUGE programme [175238/S10]
- Research Council of Norway through the FRIMEDBIO programme [204756, 178049/V40]
Ask authors/readers for more resources
Peptide ligands play crucial roles in the life cycle of plants by modulating the innate immunity against pathogens and regulating growth and developmental processes. One well-studied example is INFLORESCENCE DEFICIENT IN ABSCISSION (IDA), which controls floral organ abscission and lateral root emergence in Arabidopsis thaliana. IDA belongs to a family of five additional IDA-LIKE (IDL) members that have all been suggested to be involved in regulation of Arabidopsis development. Here we present three novel members of the IDL subfamily and show that two of them are strongly and rapidly induced by different biotic and abiotic stresses. Furthermore, we provide data that the recently identified PAMP-INDUCED SECRETED PEPTIDE (PIP) and PIP-LIKE (PIPL) peptides, which show similarity to the IDL and C-TERMINALLY ENCODED PEPTIDE (CEP) peptides, are not only involved in innate immune response in Arabidopsis but are also induced by abiotic stress. Expression patterns of the IDA/IDL and PIP/PIPL genes were analysed using in silico data, qRT-PCR and GUS promoter lines. Transcriptomic responses to PIPL3 peptide treatment suggested a role in regulation of biotic stress responses and cell wall modification.
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