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Molecular Changes Concomitant with Vascular System Development in Mature Galls Induced by Root-Knot Nematodes in the Model Tree Host Populus tremula × P. alba .
- Source :
-
International journal of molecular sciences [Int J Mol Sci] 2020 Jan 09; Vol. 21 (2). Date of Electronic Publication: 2020 Jan 09. - Publication Year :
- 2020
-
Abstract
- One of the most striking features occurring in the root-knot nematode Meloidogyne incognita induced galls is the reorganization of the vascular tissues. During the interaction of the model tree species Populus and M. incognita , a pronounced xylem proliferation was previously described in mature galls. To better characterise changes in expression of genes possibly involved in the induction and the formation of the de novo developed vascular tissues occurring in poplar galls, a comparative transcript profiling of 21-day-old galls versus uninfected root of poplar was performed. Genes coding for transcription factors associated with procambium maintenance and vascular differentiation were shown to be differentially regulated, together with genes partaking in phytohormones biosynthesis and signalling. Specific signatures of transcripts associated to primary cell wall biosynthesis and remodelling, as well as secondary cell wall formation (cellulose, xylan and lignin) were revealed in the galls. Ultimately, we show that molecules derived from the monolignol and salicylic acid pathways and related to secondary cell wall deposition accumulate in mature galls.
- Subjects :
- Animals
Cell Wall metabolism
Gene Expression Profiling
Gene Expression Regulation, Plant
Gene Ontology
Genes, Plant
Lignin metabolism
Phloem metabolism
Plant Growth Regulators metabolism
Plant Roots genetics
Plant Tumors genetics
Plant Vascular Bundle genetics
Transcription Factors metabolism
Transcriptome genetics
Xylem metabolism
Host-Pathogen Interactions genetics
Models, Biological
Plant Roots parasitology
Plant Tumors parasitology
Plant Vascular Bundle growth & development
Populus genetics
Populus parasitology
Tylenchoidea physiology
Subjects
Details
- Language :
- English
- ISSN :
- 1422-0067
- Volume :
- 21
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- International journal of molecular sciences
- Publication Type :
- Academic Journal
- Accession number :
- 31936440
- Full Text :
- https://doi.org/10.3390/ijms21020406