Tag: Autophagy

Plants have a remarkable ability to adapt to stress. For many stresses, plants respond to short-term mild exposure by becoming more tolerant to subsequent harsher stresses that would otherwise be lethal; this effect is known as priming. Priming occurs through several mechanisms that can include changes…

Huang et al. explore the molecular mechanism underlying the regulation of autophagy by HLS1.  https://doi.org/10.1093/plcell/koad252  By Li Huang, Xing Wen, Lian Jin, Huihui Han, and Hongwei Guo New Cornerstone Science Laboratory, Institute of Plant and Food Science, Department of Biology,…

Rice is a globally important crop, therefore increasing yield without compromising quality is of much interest. A reduction in the amount of the TGW6 (THOUSAND-GRAIN WEIGHT 6) protein is associated with improved grain yield and quality in rice. However, we do not fully understand how TGW6 protein levels…

Li et al. explore the nature of proteins that accumulate in mutants deficient in autophagy machinery. Plant Cell Lei Li1,2 and A. Harvey Millar2 Frontiers Science Center for Cell Responses, Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, 300071 Tianjin,…

Autophagy is an intracellular evolutionarily conserved catabolic process that degrades cytoplasmic constituents and organelles in lytic vacuoles (micro- and macro-autophagy) or in the cytosol (mega-autophagy). Autophagy can be induced by biotic or abiotic stresses, sugar, carbon and nutrient starvation…

Mitochondria function as cellular powerhouses to generate energy via oxidative phosphorylation and facilitate the synthesis of essential macromolecules. To protect against proteotoxic stress, damaged mitochondria are selectively removed by autophagy via a process known as mitophagy. In mammalian cells,…

The exocyst is a conserved protein complex that mediates tethering of secretory vesicle to the plasma membrane prior to SNARE-mediated membrane fusion. Exo70 is one of eight subunits and has expanded into 23 homologs in Arabidopsis. Brillada and Teh et al. identified Exo70B2 as a bona fide exocyst subunit…

Ana M. Laureano-Marín, Ángeles Aroca, et al. explore the role of persulfidation in the regulation of autophagy. Plant Cell https://doi.org/10.1105/tpc.20.00766  by Cecilia Gotor, Ana M. Laureano-Marín, Ángeles Aroca Instituto de Bioquímica Vegetal y Fotosíntesis, Consejo Superior de Investigaciones…