A potential role of salicylic acid in the evolutionary behavior of Trichoderma as a plant pathogen: from Marchantia polymorpha to Arabidopsis thaliana
Main conclusion Recognition of the interaction of Trichoderma during the evolution of land plants plays a potential key role in the development of the salicylic acid defense pathway and the establishment of a mutualistic relationship. Marchantia polymorpha is a common liverwort considered in recent...
Gespeichert in:
Veröffentlicht in: | Planta 2023-01, Vol.257 (1), p.6-6, Article 6 |
---|---|
Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | Main conclusion
Recognition of the interaction of
Trichoderma
during the evolution of land plants plays a potential key role in the development of the salicylic acid defense pathway and the establishment of a mutualistic relationship.
Marchantia polymorpha
is a common liverwort considered in recent years as a model plant for evolutionary studies on plant–microorganism interactions. Despite the lack of research, remarkable results have been reported regarding the understanding of metabolic and evolutionary processes of beneficial and/or harmful interactions, owing to a better understanding of the origin and evolution of different plant defense pathways. In this study, we have carried out work on the direct and indirect interactions (exudates and volatiles) of
M. polymorpha
with different species of the fungal genus
Trichoderma
. These interactions showed different outcomes, including resistance or even growth promotion and disease. We have analyzed the level of tissue colonization and defense-related gene expression. Furthermore, we have used the pteridophyte
Dryopteris affinis
and the angiosperm
Arabidopsis thaliana
, as subsequent steps in plant evolution, together with the plant pathogen
Rhizoctonia solani
as a control of plant pathogenicity.
Trichoderma virens
,
T. brevicompactum
and
T. hamatum
are pathogens of
M. polymorpha,
while exudates of
T. asperellum
are harmful to the plant. The analysis of the expression of several defense genes in
M. polymorpha
and
A. thaliana
showed that there is a correlation of the transcriptional activation of SA-related genes with resistance or susceptibility of
M. polymorpha
to
Trichoderma
. Moreover, exogenous SA provides resistance to the virulent
Trichoderma
species. This beneficial fungus may have had an evolutionary period of interaction with plants in which it behaved as a plant pathogen until plants developed a defense system to limit its colonization through a defense response mediated by SA. |
---|---|
ISSN: | 0032-0935 1432-2048 |
DOI: | 10.1007/s00425-022-04036-5 |