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In planta expression profiles of five Fusarium fujikuroi species complex (FFC) isolates revealed common and different sets of up-regulated genes

ABSTRACT: The five FFC strains analyzed are able to penetrate maize roots and grow invasively, the efficiency of this growth as well as the ability to subsequently grow in other parts of maize plants differ significantly. To gain insight into these differences, we examined the transcriptome of the five isolates in infected maize roots with that of in vitro (CM agar) growing fungi by a RNA sequencing approach.

OTHER RELATED OMICS DATASETS IN: PRJNA311604

ORGANISM(S): Fusarium verticillioides 7600 Zea mays Fusarium mangiferae Fusarium proliferatum Fusarium fujikuroi IMI 58289 Fusarium proliferatum ET1

PROVIDER: GSE77595 | GEO | 2016/12/06

SECONDARY ACCESSION(S): PRJNA311604

REPOSITORIES: GEO

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In planta expression profiles of five Fusarium fujikuroi species complex (FFC) isolates revealed common and different sets of up-regulated genes

Project description:In planta expression profiles of five Fusarium fujikuroi species complex (FFC) isolates revealed common and different sets of up-regulated genes

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Expression profiles of nine Fusarium fujikuroi strains revealed common and different sets of up-regulated genes

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Project description:We found that primary root (PR) is more resistant to salt stress compared with crown roots (CR) and seminal roots (SR). To understand better salt stress responses in maize roots, six RNA libraries were generated and sequenced from primary root (PR), primary roots under salt stress (PR-salt) , seminal roots (SR), seminal roots under salt stress (SR-salt), crown roots (CR), and crown roots under salt stress (CR-salt). Through integrative analysis, we identified 444 genes regulated by salt stress in maize roots, and found that the expression patterns of some genes and enzymes involved in important pathway under salt stress, such as reactive oxygen species scavenging, plant hormone signal perception and transduction, and compatible solutes synthesis differed dramatically in different maize roots. 16 of differentially expressed genes were selected for further validation with quantitative real time RT-PCR (qRT-PCR).We demonstrate that the expression patterns of differentially expressed genes are highly diversified in different maize roots. The differentially expressed genes are correlated with the differential growth responses to salt stress in maize roots. Our studies provide deeper insight into the molecular mechanisms about the differential growth responses of different root types in response to environmental stimuli in planta.

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Project description:Purpose: The goal of this analysis is that to reveal the different expression pattern in chilling-tolerant and chilling susceptible lines under chilling stress.Chilling is a major stress to plants of subtropical and tropical origins including maize. To reveal molecular mechanisms underlying chilling tolerance and chilling survival, we investigated maize transcriptome responses to chilling stress in differentiated leaves and roots as well as in crowns with meristem activity for survival. Chilling stress on maize shoots and roots is found to each contribute to seedling lethality in maize. Comparison of maize lines with different chilling tolerance capacity reveals that chilling survival in maize is highly associated with upregulation in leaves and crowns of abscisic acid response pathway, transcriptional regulators and metal ion transporters as well as downregulation of heat response in crowns. Comparison of chilling treatment on whole and part of the plants reveals that response to distal-chilling is very distinct from, and sometimes opposite to, response to local- or whole-plant chilling in both leaves and roots, suggesting a communication between shoots and roots in environmental perception. In sum, this study details chilling responses in leaves, roots and crowns and reveals potential chilling survival mechanism in maize, which lays ground for further understanding survival and tolerance mechanisms under low but non-freezing temperatures in tropical and subtropical plants.

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The distinct transcription patterns correlate with the differential growth responses to salt stress in maize roots

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