Rad6-Bre1-mediated H2B ubiquitination regulates telomere replication by promoting telomere-end resection.

Rad6 and Bre1, ubiquitin-conjugating E2 and E3 enzymes respectively, are responsible for histone H2B lysine 123 mono-ubiquitination (H2Bub1) in Saccharomyces cerevisiae. Previous studies have shown that Rad6 and Bre1 regulate telomere length and recombination. However, the underlying molecular mechanism remains largely unknown.

Alkaline-stress response in Glycine soja leaf identifies specific transcription factors and ABA-mediated signaling factors.

Transcriptome of Glycine soja leaf tissue during a detailed time course formed a foundation for examining transcriptional processes during NaHCO(3) stress treatment. Of a total of 2,310 detected differentially expressed genes, 1,664 genes were upregulated and 1,704 genes were downregulated at various time points. The number of stress-regulated genes increased dramatically after a 6-h stress treatment.

Global transcriptome profiling of wild soybean (Glycine soja) roots under NaHCO3 treatment.

Background: Plant roots are the primary site of perception and injury for saline-alkaline stress. The current knowledge of saline-alkaline stress transcriptome is mostly focused on saline (NaCl) stress and only limited information on alkaline (NaHCO3) stress is available.

Results: Using Affymetrix Soybean GeneChip, we conducted transcriptional profiling on Glycine soja roots subjected to 50 mmol/L NaHCO3 treatment.

Profiling of cold-stress-responsive miRNAs in rice by microarrays.

MicroRNAs (miRNAs) are small single-stranded RNAs with a length of about 21 nt; these non-coding RNAs regulate developmental and stress responses in plants by cleaving mRNAs. Cold stress is one of the most severe abiotic stresses and adversely affects rice yields by restraining sowing time, causing tissue damage, and stunting growth. Although many miRNAs have been identified in rice, little is known about the role of miRNAs in the response to cold stress.