Schaarschmidt, Stephanie; Glaubitz, Ulrike; Erban, Alexander; Kopka, Joachim; Zuther, Ellen published the artcile< Differentiation of the High Night Temperature Response in Leaf Segments of Rice Cultivars with Contrasting Tolerance>, SDS of cas: 87-73-0, the main research area is Oryza cultivar leaf segment high night temperature; RNA-Seq; high night temperature; leaf segments; metabolomics; rice cultivars; sheath.
High night temperatures (HNT) affect rice yield in the field and induce chlorosis symptoms in leaves in controlled chamber experiments However, little is known about mol. changes in leaf segments under these conditions. Transcript and metabolite profiling were performed for leaf segments of six rice cultivars with different HNT sensitivity. The metabolite profile of the sheath revealed a lower metabolite abundance compared to segments of the leaf blade. Furthermore, pre-adaptation to stress under control conditions was detected in the sheath, whereas this segment was only slightly affected by HNT. No unique significant transcriptomic changes were observed in the leaf base, including the basal growth zone at HNT conditions. Instead, selected metabolites showed correlations with HNT sensitivity in the base. The middle part and the tip were most highly affected by HNT in sensitive cultivars on the transcriptomic level with higher expression of jasmonic acid signaling related genes, genes encoding enzymes involved in flavonoid metabolism and a gene encoding galactinol synthase. In addition, gene expression of expansins known to improve stress tolerance increased in tolerant and sensitive cultivars. The investigation of the different leaf segments indicated highly segment specific responses to HNT. Mol. key players for HNT sensitivity were identified.
International Journal of Molecular Sciences published new progress about Chlorosis (plant). 87-73-0 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H10O8, SDS of cas: 87-73-0.
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