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Overlaps in the Transcriptional Profiles of Medicago truncatula Roots Inoculated with Two Different Glomus Fungi Provide Insights into the Genetic Program Activated during Arbuscular Mycorrhiza1[w]
TLDR
This study focused on the overlapping genetic program activated by two commonly studied microsymbionts in addition to identifying AM-related genes, and demonstrated that one member of the AM-induced gene family encoding blue copper binding proteins was both specifically and strongly up-regulated in arbuscule-containing regions of mycorrhizal roots.
A Combined Proteome and Transcriptome Analysis of Developing Medicago truncatula Seeds
TLDR
A remarkable compartmentalization of enzymes involved in methionine biosynthesis between the seed tissues was revealed that may regulate the availability of sulfur-containing amino acids for embryo protein synthesis during seed filling, which is relevant to strategies for modifying the nutritional value of legume seeds.
Expression Profiling in Medicago truncatula Identifies More Than 750 Genes Differentially Expressed during Nodulation, Including Many Potential Regulators of the Symbiotic Program1[w]
TLDR
A large-scale expression-profiling approach to identify genes differentially regulated during the symbiotic interaction between the model legume Medicago truncatula and the nitrogen-fixing bacterium Sinorhizobium meliloti found at least 13 genes that are good candidates to play a role in the regulation of the symbiotics program.
Global changes in gene expression in Sinorhizobium meliloti 1021 under microoxic and symbiotic conditions.
Sinorhizobium meliloti is an alpha-proteobacterium that alternates between a free-living phase in bulk soil or in the rhizosphere of plants and a symbiotic phase within the host plant cells, where
Transcriptional Responses toward Diffusible Signals from Symbiotic Microbes Reveal MtNFP- and MtDMI3-Dependent Reprogramming of Host Gene Expression by Arbuscular Mycorrhizal Fungal
TLDR
Comparative gene expression studies in symbiotic mutants demonstrated that transcriptional reprogramming by AM fungal LCOs strictly depends on MtNFP and largely requires MtDMI3, and signaling-related and transcription factor genes specifically up-regulated by Myc-LCOs were identified.
Transcriptional changes in response to arbuscular mycorrhiza development in the model plant Medicago truncatula.
TLDR
Electronic data obtained by comparison of the cDNA sequences to expressed sequence tag (EST) sequences from a wide range of cDNA libraries in the M. truncatula EST database support the mycorrhiza specificity of the corresponding genes, because sequences in the MtGI that were found to match the identified SSH-cDNA sequences originated exclusively from AM c DNA libraries.
The transcriptome of the arbuscular mycorrhizal fungus Glomus intraradices (DAOM 197198) reveals functional tradeoffs in an obligate symbiont.
TLDR
The first genome-wide analysis of the transcriptome from Glomus intraradices is reported, suggesting that the lack of a known sexual cycle in G. intrarodices is not a result of major deletions of genes essential for sexual reproduction and meiosis.
The 32-kilobase exp gene cluster of Rhizobium meliloti directing the biosynthesis of galactoglucan: genetic organization and properties of the encoded gene products
TLDR
Proteins directing the biosynthesis of galactoglucan in Rhizobium meliloti Rm2011 are encoded by the exp genes, and operon analysis revealed that the exp gene cluster consists of five complementation groups.
Laser Microdissection Unravels Cell-Type-Specific Transcription in Arbuscular Mycorrhizal Roots, Including CAAT-Box Transcription Factor Gene Expression Correlating with Fungal Contact and Spread1[W]
TLDR
To unravel gene expression in defined stages of Medicago truncatula root colonization by AM fungi, genome-wide transcriptome profiling based on whole mycorrhizal roots with real-time reverse transcription-PCR experiments that relied on characteristic cell types obtained via laser microdissection were combined.
Transcriptome profiling in root nodules and arbuscular mycorrhiza identifies a collection of novel genes induced during Medicago truncatula root endosymbioses.
TLDR
Transcriptome profiling based on cDNA array hybridizations and in silico screening was used to identify Medicago truncatula genes induced in both root nodules and arbuscular mycorrhiza, with a total of 75 genes being induced during both interactions.
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