Tag: Gene Regulation

Ethylene is essential for the ripening of climacteric fruits, and a rapid burst of ethylene production and a rise in respiration occur at the transition to ripening.  In ripening apple (Malus domestica) fruits, the accumulation of anthocyanins that is responsible for reddening is correlated with ethylene…

The Arabidopsis genome encodes nine Argonaute proteins and an AGO pseudogene. The nine functional proteins fall into three clades based on sequence. Ma and Zhang update what we know about these proteins. It turns out, the simple assumptions made early on have not entirely been borne out. For example,…

Ye et al. discover a protein that mediates phosphate translocation and is dependent on environmental phosphate supply. Plant Cell (2018). https://doi.org/10.1105/tpc.17.00845 By Qing Ye and Yi-Fang Chen Background: Phosphorus is a major essential nutrient for plant growth and development, and phosphate…

Wei et al. Study m6A binding protein ECT2 in Arabidopsis. The Plant Cell (2018). https://doi.org/10.1105/tpc.17.00934 By Lian-Huan Wei Background: N6-methyladenosine (m6A) is the most abundant chemical modification of eukaryotic messenger RNA (mRNA). The regulation of m6A modification plays important…

Scutenaire et al. show that a YTH domain protein acts as a reader of m6A mRNA modifications, thereby playing crucial roles in trichome branching, likely by acting on mRNAs in the cytosol. Plant Cell (2018). https://doi.org/10.1105/tpc.17.00854 By J. Scutenaire and C. Bousquet-Antonelli Background:…

Arribas-Hernández et al. find that the N6-methyladenosine RNA binding proteins ECT2, ECT3, and ECT4 are required for the correct timing of leaf formation and correct leaf and trichome morphogenesis. Plant Cell (2018). https://doi.org/10.1105/tpc.17.00833. By Laura Arribas-Hernández Background:…

Wang et al. find that EAR1 is a general negative regulator of ABA signaling. https://doi.org/10.1105/tpc.17.00875 By Kai Wang, Jigang Li and Zhizhong Gong Background: Abscisic acid (ABA) signaling in plants controls many biological processes, such as seed germination, seedling root growth, and…

Guo et al. show that miR9678 affects seed germination in wheat by generating phased siRNAs and modulating abscisic acid/gibberellin signaling. Plant Cell https://doi.org/10.1105/tpc.17.00842 By Guanghui Guo and Yingyin Yao Background:  Seed germination is important for grain yield and quality…