Understanding the Transcriptional Changes During Infection of Meloidogyne incognita Eggs by the Egg-Parasitic Fungus Purpureocillium lilacinum
The egg-pathogenic fungus parasitizes on nematode eggs, and thus, it is used as a good biocontrol agent against plant root-knot nematodes. However, little is known about the transcriptional response of while infecting nematode eggs. This study presents the whole transcriptome sequencing of and trans...
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Published in | Frontiers in microbiology Vol. 12; p. 617710 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Switzerland
Frontiers Media S.A
07.04.2021
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Subjects | |
Online Access | Get full text |
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Summary: | The egg-pathogenic fungus
parasitizes on nematode eggs, and thus, it is used as a good biocontrol agent against plant root-knot nematodes. However, little is known about the transcriptional response of
while infecting nematode eggs. This study presents the whole transcriptome sequencing of
and transcriptome-wide gene expression analysis of
upon infecting the eggs of
compared to non-infecting controls. A transcriptomic library of
was used as reference gene set and six transcriptomic libraries of the non-infecting control and
infecting
eggs were constructed, respectively, comprising three biological replicates of each. A total of 1,011 differently expressed genes (DEGs) were identified in the infecting samples, including 553 up-regulated and 458 down-regulated genes compared to the non-infecting control samples. Furthermore, functional enrichment analysis exhibited that these DEGs were primarily involved in oxidative phosphorylation, oxidoreductase activity, and metabolic processes. Fifteen DEGs were randomly selected to verify the RNA sequencing results through quantitative real-time polymerase chain reaction (qPCR). The study focused on
genes that were strongly expressed upon infecting
eggs. These DEGs were primarily involved in detoxification, parasitic behavior, and nutritional utilization. This study contributes significantly to the understanding of the molecular mechanisms underlying the parasitic action of
on nematode eggs and provides a valuable genetic resource for further research on parasitic behavior of
. Notably, this study examined the transcriptomics of
infecting
eggs at only one time point. Since there were fungi at different stages of the infection process at that time point, the transcriptional profiles are not precisely examining one specific stage in this process. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Edited by: Michael Poulsen, University of Copenhagen, Denmark These authors have contributed equally to this work This article was submitted to Microbial Symbioses, a section of the journal Frontiers in Microbiology Reviewed by: Tushar Kanti Dutta, Indian Agricultural Research Institute (ICAR), India; Victor Phani, Indian Agricultural Research Institute (ICAR), India; James Borneman, University of California, Riverside, United States |
ISSN: | 1664-302X 1664-302X |
DOI: | 10.3389/fmicb.2021.617710 |