Expression and Regulation of aERD2, a Gene Encoding the KDEL Receptor Homolog in Plants, and Other Genes Encoding Proteins Involved in ER-Golgi Vesicular Trafficking. Bar-Peled M, Conceicao A, Frigerio L, Raikhel NV. Plant Cell. 1995 Jun;7(6):667-676.
...... declined during leaf maturation. Low levels of aERD2 were detected in both young and fully mature leaves when compared with roots. In situ hybridization showed that trichomes accumulate more aERD2 transcript as the leaf expands, whereas aSAR1 is expressed equally in all leaf cell types. Treating plants with tunicamycin, a drug that blocks N-glycosylation in the ER, or with cold shock, known to block secretory protein transport, led to a marked accumulation of aERD2 and aSAR1 ......
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