Metabolic and transcriptomic changes induced in host during hypersensitive response mediated resistance in rice against the Asian rice gall midge

Agarrwal, Ruchi; Padmakumari, A. P.; Bentur, J. S.; Nair, Suresh

doi:10.1186/s12284-016-0077-6

Cited by 24 publications

(33 citation statements)

References 56 publications

(72 reference statements)

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“…Others have found as many as 7,000 genes differentially expressed in a single stage (often mature) of much simpler galls (Aggarwal et al . 2016 76 , Takei et al . 2017 77 , Shih et al .…”

Section: Discussionmentioning

confidence: 99%

A galling insect activates plant reproductive programs during gall development

Schultz

Edger

Body

et al. 2019

Sci Rep

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Many insect species have acquired the ability to redirect plant development to form unique organs called galls, which provide these insects with unique, enhanced food and protection from enemies and the elements. Many galls resemble flowers or fruits, suggesting that elements of reproductive development may be involved. We tested this hypothesis using RNA sequencing to quantify the transcriptional responses of wild grapevine (Vitis riparia) leaves to a galling parasite, phylloxera (Daktulosphaira vitifoliae). If development of reproductive structures is part of gall formation, we expected to find significantly elevated expression of genes involved in flower and/or fruit development in developing galls as opposed to ungalled leaves. We found that reproductive gene ontology categories were significantly enriched in developing galls, and that expression of many candidate genes involved in floral development were significantly increased, particularly in later gall stages. The patterns of gene expression found in galls suggest that phylloxera exploits vascular cambium to provide meristematic tissue and redirects leaf development towards formation of carpels. The phylloxera leaf gall appears to be phenotypically and transcriptionally similar to the carpel, due to the parasite hijacking underlying genetic machinery in the host plant.

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“…Others have found as many as 7,000 genes differentially expressed in a single stage (often mature) of much simpler galls (Aggarwal et al . 2016 76 , Takei et al . 2017 77 , Shih et al .…”

Section: Discussionmentioning

confidence: 99%

A galling insect activates plant reproductive programs during gall development

Schultz

Edger

Body

et al. 2019

Sci Rep

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“…). Both maleate and azelate are present in the rice plant (Kim et al ., ; Agarrwal et al ., ), and L. paracasei metabolism increases their bioavailability. Linoleate is also detected at high levels in rice bran (Kaur et al ., ).…”

Section: Discussionmentioning

confidence: 99%

Lactobacillus paracaseimetabolism of rice bran reveals metabolome associated withSalmonellaTyphimurium growth reduction

2017

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AimsThis study aimed to determine the effect of a cell‐free supernatant of Lactobacillus paracasei ATCC 27092 with and without rice bran extract (RBE) on Salmonella Typhimurium 14028s growth, and to identify a metabolite profile with antimicrobial functions.Methods and ResultsSupernatant was collected from overnight cultures of L. paracasei incubated in the presence (LP+RBE) or absence (LP) of RBE and applied to S. Typhimurium. LP+RBE reduced 13·1% more S. Typhimurium growth than LP after 16 h (P < 0·05). Metabolite profiles of LP and LP+RBE were examined using nontargeted global metabolomics consisting of ultra‐high‐performance liquid chromatography coupled with tandem mass spectrometry. A comparison of LP and LP+RBE revealed 84 statistically significant metabolites (P < 0·05), where 20 were classified with antimicrobial functions.Conclusions LP+RBE reduced S. Typhimurium growth to a greater extent than LP, and the metabolite profile distinctions suggested that RBE favourably modulates the metabolism of L. paracasei. These findings warrant continued investigation of probiotic and RBE antimicrobial activities across microenvironments and matrices where S. Typhimurium exposure is problematic.Significance and Impact of the StudyThis study showed a novel metabolite profile of probiotic L. paracasei and prebiotic rice bran that increased antimicrobial activity against S. Typhimurium.

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“…The integrated analyses of transcriptomic and metabolomic data obtained from two biological levels, i.e., transcript and metabolite levels, are a useful way of examining the complexity of biological systems. The integrated analyses of transcriptomic and metabolomic data have been applied to the study of various aspects of plant biology, including the responses of Arabidopsis thaliana to nutritional stresses [10], the elucidation of gene-to-gene and metabolite-to-gene networks in Arabidopsis [11], the identification of Fusarium head blight resistance genes in wheat [12], rice insect interaction research [13], and duckweed responses to nitrogen starvation [14]. However, as far as we know, the research on the response of rice to nitrogen nutrition by an integrated analysis of the transcriptome and metabolome is scant.…”

Section: Introductionmentioning

confidence: 99%

An Integrated Analysis of the Rice Transcriptome and Metabolome Reveals Root Growth Regulation Mechanisms in Response to Nitrogen Availability

Wei

Zhang

et al. 2019

IJMS

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Nitrogen is an essential nutrient for plant growth and basic metabolic processes. Root systems play an important role in the ability of plants to obtain nutrients from the soil, and are closely related to the growth and development of above-ground plants. Root morphology analysis showed that root growth was induced under low-nitrogen conditions and inhibited under high-nitrogen conditions. To better understand the molecular mechanisms and metabolic basis underlying the rice root response to nitrogen availability, an integrated analysis of the rice root transcriptome and metabolome under three environmental conditions (low-, control, and high-nitrogen conditions) was conducted. A total of 262 and 262 differentially level metabolites were identified under low- and high-nitrogen conditions, respectively. A total of 696 and 808 differentially expressed genes were identified under low- and high-nitrogen conditions, respectively. For both the differentially expressed genes and metabolites, KEGG pathway analysis indicated that amino acid metabolism, carbon and nitrogen metabolism, phenylpropanoid metabolism, and phytohormones’ signal transduction were significantly affected by nitrogen availability. Additionally, variable levels of 65 transcription factors (TFs) were identified in rice leaves exposed to high and low nitrogen, covering 22 TF families. These results also indicate that there is a significant difference in the transcriptional regulation mechanisms of rice roots between low and high nitrogen. In summary, our study provides new information for a further understanding of the response of rice roots to low-nitrogen and high-nitrogen conditions.

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Metabolic and transcriptomic changes induced in host during hypersensitive response mediated resistance in rice against the Asian rice gall midge

Cited by 24 publications

References 56 publications

A galling insect activates plant reproductive programs during gall development

A galling insect activates plant reproductive programs during gall development

Lactobacillus paracaseimetabolism of rice bran reveals metabolome associated withSalmonellaTyphimurium growth reduction

An Integrated Analysis of the Rice Transcriptome and Metabolome Reveals Root Growth Regulation Mechanisms in Response to Nitrogen Availability

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