The haustorial transcriptomes of Uromyces appendiculatus and Phakopsora pachyrhizi and their candidate effector families. (17th December 2013)

• Record Type: Journal Article
• Authors: Link, Tobias I.; Lang, Patrick; Scheffler, Brian E.; Duke, Mary V.; Graham, Michelle A.; Cooper, Bret; Tucker, Mark L.; van de, Martijn; Voegele, Ralf T.; Mendgen, Kurt; Baum, Thomas J.; Whitham, Steven A.
• Is Part Of: Molecular plant pathology. Volume 15:Number 4(2014:May)
• Page Start: 379
• Page End: 393
• Publication Date: 2013-12-17
• Subjects: Plant diseases -- Molecular aspects -- Periodicals; Plant-pathogen relationships -- Molecular aspects -- Periodicals; 571.936
• DOI: 10.1111/mpp.12099
• Languages: English
• ISSNs: 1464-6722

Abstract

<abstract abstract-type="main"> <title>Summary</title> <p>Haustoria of biotrophic rust fungi are responsible for the uptake of nutrients from their hosts and for the production of secreted proteins, known as effectors, which modulate the host immune system. The identification of the transcriptome of haustoria and an understanding of the functions of expressed genes therefore hold essential keys for the elucidation of fungus–plant interactions and the development of novel fungal control strategies. Here, we purified haustoria from infected leaves and used 454 sequencing to examine the haustorial transcriptomes of <italic>Phakopsora pachyrhizi</italic> and <italic>Uromyces appendiculatus</italic>, the causal agents of soybean rust and common bean rust, respectively. These pathogens cause extensive yield losses in their respective legume crop hosts. A series of analyses were used to annotate expressed sequences, including transposable elements and viruses, to predict secreted proteins from the assembled sequences and to identify families of candidate effectors. This work provides a foundation for the comparative analysis of haustorial gene expression with further insights into physiology and effector evolution.</p> </abstract>