The Fungal Transmitted Viruses

Singh, Douglas A.; Verma, Neeraj; Varma, Ajit

doi:10.1007/978-3-540-78826-3_24

Cited by 5 publications

(3 citation statements)

References 64 publications

(70 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…is zoosporic fungi belonging to the division Chytridiomycota and obligates intracellular parasites of roots ( Rochon, 2009 ; Yu et al, 2012 ). O. virulentus is one of several major vectors of plant virus transmission ( Campbell and Fry, 1966 ; Campbell and Sim, 1994 ; Maccarone et al, 2010 ; Maccarone, 2013 ) and is currently the only known fungal species that transmit plant viruses ( Singh et al, 2008 ; Rochon, 2009 ). OTU11 sequence was identified as Olpidium brassicae using the UNITE fungal ITS database, and we manually BLAST it in NCBI and identified as O. virulentus (GenBank: KY905661.1).…”

Section: Discussionmentioning

confidence: 99%

Intensified Pulse Rotations Buildup Pea Rhizosphere Pathogens in Cereal and Pulse Based Cropping Systems

et al. 2018

View full text Add to dashboard Cite

The association of plants and microbial communities is crucial for crop production, and host plants influence the composition of rhizosphere microbiomes. Pulse crops play an important role in the development of sustainable cropping systems, and producers in the Canadian prairies often increase the frequency of pulses in their cropping systems. In this study, we determined the shifts in the fungal community of pea (Pisum sativum L.) rhizosphere, as influenced by the frequency of pulses in rotation, using high throughput sequencing. Six cropping systems containing pea (P), lentil (Lens culinaris Medik., L), hybrid canola (Brassica napus L., C), wheat (Triticum aestivum L., W), and oat (Avena sativa L., O) in different intensities were tested. The fungal communities were assessed at the flowering stage in the fourth and fifth year of the 4-year rotations. Cropping system had a significant impact on the composition of the rhizosphere fungal community, and the effect of crop rotation sequence was greater and explained more of the variation than the effect of previous crops. The rotation with consecutive pulses (WPLP) decreased fungal evenness and increased the proportion of pathotrophs. Fusarium was a dominant and ubiquitous pathotrophic genus. Olpidium virulentus, Botrytis cinerea, Fusarium solani, F. graminearum, and Alternaria eichhorniae were generally more abundant in pulse intensive rotations (WPLP, WLOP, and WPOP), the exception being F. solani which was not promoted by lentil. Reads of O. virulentus and B. cinerea were most abundant in pea preceded by lentil followed by the reads of Mortierella elongata in pea preceded by wheat. Pea consistently had higher grain yield when grown in diversified rotations including wheat, canola/lentil, and oat than rotations with two repeated crops (canola or pea). Cropping system affected the soil physicochemical properties, and soil pH was the main driver of fungal community shift. No evidence of beneficial microorganisms involvement in plant productivity was observed, but the high abundance of pathotrophs in pulse intensified rotations suggests the possibility of pathogen buildup in the soil with increasing pulse frequency. Diversifying rotation sequences minimized disease risk and increased pea production, in this study. Careful selection of plant species appears as a strategy for the management of rhizosphere fungal communities and the maintenance of crop production system’s health.

show abstract

Section: Discussionmentioning

confidence: 99%

Intensified Pulse Rotations Buildup Pea Rhizosphere Pathogens in Cereal and Pulse Based Cropping Systems

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Viruses are transmitted mainly by insect vectors [159], but also by fungi [160], nematodes [161], an other animals including humans, by cross-contaminating cultural practices.…”

Section: Virusesmentioning

confidence: 99%

Patented Applications of Gene Silencing in Plants: Manipulation of Traits and Phytopathogen Resistance

Álvarez-Fernández

2010

DNAG

View full text Add to dashboard Cite

RNA silencing is the name of a broad family of phenomena including RNA interference (RNAi) in animals and basal eukaryotes, quelling in fungi and posttranscriptional gene silencing (PTGS) in plants. PTGS is a fertile research field and since its discovery many applications have been developed related to plant breeding. This minireview summarizes those patents which apply engineered gene silencing to specific problems. The range of inventions is divided in two main sections: manipulation of traits and resistance to phytopathogens and pests. Subtopics like manipulation of tolerances to abiotic stress, alteration of lignin, biofactories, alkaloids biosynthesis and flowering time fall within the first section, and introduction of resistances to insects, nematodes, bacteria, virus and fungi can be found within the second one.

show abstract

“…Two sources of contamination are worth considering for the proper use of viRNAs as a diagnostic tool: Fungi can produce sRNAs as part of their metabolism that can be co-purified with plant-derived molecules if the sample is contaminated with either symbionts or pathogenic fungi, not just because of the presence of hyphae in the plant material, but also because the movement of sRNAs between plants and fungi has been documented [35]. This may be of special relevance if the fungus is a biological vector of plant viruses [36], or if mycoviruses (and their associated sRNAs) are present in the fungus [37]. Plant genomes are populated with regions of presumed viral origin, most of them with similarity to DNA viruses, but in rare cases, segments from RNA viruses have been also reported [38]–[41].…”

Section: Introductionmentioning

confidence: 99%

Virotest: a bioinformatics pipeline for virus identification in plants

González-Ibeas¹

2023

Preprint

View full text Add to dashboard Cite

High-throughput DNA sequencing is being introduced as an emerging technology for viral diagnosis. Despite several tools being available, lack of standardized bioinformatic pipelines and price are major limitations for its implementation. Many extant tools focus on the assembly of virus-derived small RNAs into contigs and their subsequent annotation. Better sensitivity has been reported by several studies when this approach is complemented with read mapping on known viral genome sequences as an ancillary step, requiring less number of reads and allowing price optimization during DNA sequencing. This publication introduces virotest, a bioinformatics pipeline for the identification of viruses in plants from small RNA data. The tool prioritizes read mapping over sequence assembly for the purpose of obtaining better sensitivities and requiring lower sequencing depths.

show abstract

The Fungal Transmitted Viruses

Cited by 5 publications

References 64 publications

Intensified Pulse Rotations Buildup Pea Rhizosphere Pathogens in Cereal and Pulse Based Cropping Systems

Intensified Pulse Rotations Buildup Pea Rhizosphere Pathogens in Cereal and Pulse Based Cropping Systems

Patented Applications of Gene Silencing in Plants: Manipulation of Traits and Phytopathogen Resistance

Virotest: a bioinformatics pipeline for virus identification in plants

Contact Info

Product

Resources

About