ITPK1 (Inositol 1,3,4-Triphosphate 5/6 Kinase)

Appleton, Kathryn M.; Cushman, Ian; Peterson, Yuri K.; Manavalan, Balachandran; Basith, Shaherin; Choi, Sangdun; Kimura, A.; Naka, Tetsuji; Kishimoto, Tadamitsu; Seddon, Benedict; Traver, Maria; Taylor, Gregory A.; Gyrd‐Hansen, Mads; Blandino, Giovanni; Fontemaggi, Giulia; Grillo, Michael A.; Koulen, Peter; Annenkov, Alexander; Zeltz, Cédric; Gullberg, Donald; Mittelbrunn, Marı́a; Sánchez‐Madrid, Francisco; Kerr, Bethany A.; Byzova, Tatiana V.; Heino, Jyrki; Lin, Fan-ching; Young, Howard A.; Taylor, Colin W.; Barnes, Betsy J.; Zhou, Yixing; Schenk, Tobias M. H.; Shears, Stephen B.; Sengar, Ameet S.; Salter, Michael W.; Egan, Sean E.

doi:10.1007/978-1-4419-0461-4_457

Cited by 1 publication

(1 citation statement)

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“…Owing to a lack of InsP3 receptors in plants, InsP3 is converted into the more phosphorylated forms of inositol, i.e., tetra, penta, and hexaphosphates (InsP4, InsP5, and InsP6), through further phosphorylation steps involving at least two types of inositol polyphosphate 2-kinase (IPK1) and inositol polyphosphate kinase 2 (IPK2, synonym for inositol 1,3,4-trisphosphate 5/6-kinase) (Munnik and Vermeer, 2010; Zhou et al, 2012; Sparvoli and Cominelli, 2015). Among these enzymes, Buseok exhibited enhanced expression of two IPK2 family genes under 0.5 and 6 h UV-B irradiation compared to Cheongja 3 (Table 2).…”

Section: Resultsmentioning

confidence: 99%

Transcriptomic Profiling of Soybean in Response to High-Intensity UV-B Irradiation Reveals Stress Defense Signaling

et al. 2016

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The depletion of the ozone layer in the stratosphere has led to a dramatic spike in ultraviolet B (UV-B) intensity and increased UV-B light levels. The direct absorption of high-intensity UV-B induces complex abiotic stresses in plants, including excessive light exposure, heat, and dehydration. However, UV-B stress signaling mechanisms in plants including soybean (Glycine max [L.]) remain poorly understood. Here, we surveyed the overall transcriptional responses of two soybean genotypes, UV-B-sensitive Cheongja 3 and UV-B-resistant Buseok, to continuous UV-B irradiation for 0 (control), 0.5, and 6 h using RNA-seq analysis. Homology analysis using UV-B-related genes from Arabidopsis thaliana revealed differentially expressed genes (DEGs) likely involved in UV-B stress responses. Functional classification of the DEGs showed that the categories of immune response, stress defense signaling, and reactive oxygen species (ROS) metabolism were over-represented. UV-B-resistant Buseok utilized phosphatidic acid-dependent signaling pathways (based on subsequent reactions of phospholipase C and diacylglycerol kinase) rather than phospholipase D in response to UV-B exposure at high fluence rates, and genes involved in its downstream pathways, such as ABA signaling, mitogen-activated protein kinase cascades, and ROS overproduction, were upregulated in this genotype. In addition, the DEGs for TIR-NBS-LRR and heat shock proteins are positively activated. These results suggest that defense mechanisms against UV-B stress at high fluence rates are separate from the photomorphogenic responses utilized by plants to adapt to low-level UV light. Our study provides valuable information for deep understanding of UV-B stress defense mechanisms and for the development of resistant soybean genotypes that survive under high-intensity UV-B stress.

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Section: Resultsmentioning

confidence: 99%