Tag: Signals and Responses

Plastids differentiate into subtypes. For example, the transition of proplastids to chloroplasts defines the photosynthetic tissues within a plant, whereas amyloplasts are formed in nonphotosynthetic tissues. Recently, evidence has accumulated for a novel class of plastids that is specialized for stress…

Bi et al. provide a link between immune receptors and MAPK cascades. Plant Cell (2018) https://doi.org/10.1105/tpc.17.00981.   By G. Bi and J.-M. Zhou Background: Plants use numerous immune receptors localized at the cell surface to detect invading pathogens. These receptors send a warning signal…

Meng et al. show that sorbitol acts as a signal regulating resistance to the fungal pathogen Alternaria alternata in apple.Plant Cell https://doi.org/10.1105/tpc.18.00231 By Dong Meng, B. Gillian Turgeon and Lailiang Cheng Background: Sugars produced by photosynthesis fuel plant growth and development,…

As sessile organisms, plants must constantly sense and respond to a dynamic range of stimuli in their environment, which includes both the duration of light (photoperiod) and the presence of microbial invaders. In a recent article published in Plant Physiology, Cagnola et al. (2018) investigate how plant…

Mine et al. use RNA-seq to study RPS2-mediated bacterial resistance https://doi.org/10.1105/tpc.17.00970 By Akira Mine, Carolin Seyfferth and Kenichi Tsuda Background: To fight against pathogens, plants can detect enemies and transduce the signal to reprogram gene expression in the cell as a defense…

Park et al. demonstrate that phytochrome B preferentially inhibits its interacting transcription factors via one of two mechanisms depending on light conditions. The Plant Cell (2018). https://doi.org/10.1105/tpc.17.00913. By Eunae Park Background: Phytochrome B (phyB) is a plant photoreceptor…

Yao et al. found that OsPM1 can move the plant hormone abscisic acid into rice cells. https://doi.org/10.1105/tpc.17.00770. By Lingya Yao and Xiaochun Ge Background: Abscisic acid (ABA) is an important plant hormone that regulates plant seed dormancy and stress responses, especially drought responses.…

Poitout et al. study how plants forage for nutrients in the soil https://doi.org/10.1105/tpc.18.00011. By Arthur Poitout and Sandrine Ruffel Background: Nitrate, NO3- (the preferential nitrogen [N] source for most of higher plants) is spread unevenly in the soil due to its high mobile property,…