NDLI: Unfoldome variation upon plant-pathogen interactions: strawberry infection by Colletotrichum acutatum

Content Provider	Springer Nature Link
Author	Baraldi, Elena Coller, Emanuela Zoli, Lisa Cestaro, Alessandro Tosatto, Silvio C. E. Zambelli, Barbara
Copyright Year	2015
Abstract	Intrinsically disordered proteins (IDPs) are proteins that lack secondary and/or tertiary structure under physiological conditions. These proteins are very abundant in eukaryotic proteomes and play crucial roles in all molecular mechanisms underlying the response to environmental challenges. In plants, different IDPs involved in stress response have been identified and characterized. Nevertheless, a comprehensive evaluation of protein disorder in plant proteomes under abiotic or biotic stresses is not available so far. In the present work the transcriptome dataset of strawberry (Fragaria x ananassa) fruits interacting with the fungal pathogen Colletotrichum acutatum was actualized onto the woodland strawberry (Fragaria vesca) genome. The obtained cDNA sequences were translated into protein sequences, which were subsequently subjected to disorder analysis. The results, providing the first estimation of disorder abundance associated to plant infection, showed that the proteome activated in the strawberry red fruit during the active fungal propagation is remarkably depleted in disorder. On the other hand, in the resistant white fruit, no significant disorder reduction is observed in the proteins expressed in response to fungal infection. Four representative proteins, FvSMP, FvPRKRIP, FvPCD-4 and FvFAM32A-like, predicted as mainly disordered and never experimentally characterized before, were isolated, and the absence of structure was validated at the secondary and tertiary level using circular dichroism and differential scanning fluorimetry. Their quaternary structure was also established using light scattering. The results are discussed considering the role of protein disorder in plant defense.
Starting Page	49
Ending Page	65
Page Count	17
File Format	PDF
ISSN	01674412
Journal	Plant Molecular Biology
Volume Number	89
Issue Number	1-2
e-ISSN	15735028
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-08-06
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Intrinsically disordered proteins Plant biotic stress Strawberry Colletotrichum acutatum Plant Sciences Biochemistry Plant Pathology
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Medicine Agronomy and Crop Science

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