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CAN OF SPINACH, a novel long non-coding RNA, affects iron deficiency responses in Arabidopsis thaliana (RNA-Seq)

ABSTRACT: A whole transcriptome (RNA-seq) study of Arabidopsis shoots under iron sufficient, deficient and resupply conditions was carried out to determine the genes that are iron-regulated in the shoots.

ORGANISM(S): Arabidopsis thaliana

PROVIDER: GSE209593 | GEO | 2022/09/15

REPOSITORIES: GEO

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CAN OF SPINACH, a novel long non-coding RNA, affects iron deficiency responses in Arabidopsis thaliana (small RNA-Seq)

Project description:We performed small RNA-seq (sRNA-seq) study of Arabidopsis shoots under iron-sufficient (+Fe), iron deficient (-Fe) and iron resupply (Fe resupply) conditions to investigate and identify sRNAs whose expression is regulated by iron deficiency.

2022-09-15 | GSE209594 | GEO

Strigolactones are involved in enhancing iron uptake in maize

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CAN OF SPINACH, a novel long non-coding RNA, affects iron deficiency responses in Arabidopsis thaliana

Project description:This SuperSeries is composed of the SubSeries listed below.

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PRC2-mediated H3K27me3 regulates iron homeostasis genes in the shoots of Arabidopsis thaliana

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Project description:Using Illumina’s high-throughput small RNA sequencing and RNA sequencing, miRNAs and mRNAs differentially expressed under Zn deficiency and Zn resupply conditions were identified in shoots and roots of rice seedlings. A total of 68 miRNAs were identified to be differentially expressed under Zn deficiency and/or Zn resupply, and 38 of them were novel miRNAs. The Zn-responsive miRNAs were predicted to target a total of 799 genes. The transcriptome sequencing identified a total of 360 differentially expressed genes (DEGs) under Zn deficiency in shoots and roots, and 97 of them were recovered after Zn resupply treatment. Twelve DEGs were found to be potential targets genes of several Zn-responsive miRNAs like miR171g-5p, miR397b-5p, miR398a-5p, and miR528-5p.

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Iron-deficiency-induced changes in wild type and IRP1overexpressed transgenic Arabidopsis plants

Project description:a novel orphan peptide, IRON-REGULATED PROTEIN1 (IRP1) that is rapidly induced by Fe deficiency and improves growth on Fe-deplete media. In Arabidopsis, ectopic expression of IRP1 affected the activity of several genes involved in Fe acquisition and homeostasis, causing a dramatic increase of Fe in leaves and enhanced seed Fe loading. Heterologous expression of IRP1 in tomato plants resulted in increased Fe levels in fruits. Integration of AtIRP1 into the genome of crop plants may represent a novel strategy for Fe biofortification. wild type Col-0 and transgenic overexpressor IRP1-OE plants were grown under normal conditions or subjected to and iron-starvation for 3 days. Roots and shoots were collected with 3 biological replicates.

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Iron-Heme-Bach1 Axis Is Involved In Erythroblast Adaptation To Iron Deficiency

Project description:Iron plays the central role in the oxygen transport by the erythrocyte as a constituent of heme and hemoglobin. The importance of iron and heme also resides in their regulatory roles during erythroblast maturation. The transcription factor Bach1 may be involved in their regulatory roles since it is inactivated by direct binding of heme. To address whether Bach1 is involved in the responses of erythroblasts to iron status, low iron conditions that induced severe iron deficiency in mice were established. Under iron deficiency, extensive gene expression changes and mitophagy disorder were induced during maturation of erythroblasts. Bach1 mice showed more severe iron deficiency anemia in the developmental phase of mice and a retarded recovery once iron was replenished when compared with wild-type mice. In the absence of Bach1, the expression of globin genes and Hmox1 (encoding heme oxygenase-1) was de-repressed in erythroblasts under iron deficiency, suggesting that Bach1 represses these genes in erythroblasts under iron deficiency to balance the levels of heme and globin. Moreover, an increase in genome-wide DNA methylation was observed in erythroblasts of Bach1–/– mice under iron deficiency. These findings reveal the principle role of iron as a regulator of gene expression in erythroblast maturation and suggest that the iron-heme-Bach1 axis is important for a proper adaptation of erythroblast to iron deficiency to avoid toxic aggregates of non-heme globin.

2016-12-14 | GSE78955 | GEO

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