5 documents found, page 1 of 1
Abscisic acid mimic-fluorine derivative 4 alleviates water deficit stress by re...
Jiménez-Arias, David; Morales-Sierra, Sarai; Suárez, Emma; Lozano-Juste, Jorge; Coego, Alberto; Estevez, Juan C.; Borges, Andrés A.; Rodriguez, Pedro L.Water deficit represents a serious limitation for agriculture and both genetic and chemical approaches are being used to cope with this stress and maintain plant yield. Next-generation agrochemicals that control stomatal aperture are promising for controlling water use efficiency. For example, chemical control of abscisic acid (ABA) signaling through ABA-receptor agonists is a powerful method to activate plant ...
A dual function of SnRK2 kinases in the regulation of SnRK1 and plant growth
Belda-Palazón, Borja; Adamo, Mattia; Valerio, Concetta; Ferreira, Liliana J.; Confraria, Ana; Reis-Barata, Elena; Rodrigues, Américo; Meyer, ChristianAdverse environmental conditions trigger responses in plants that promote stress tolerance and survival at the expense of growth1. However, little is known of how stress signalling pathways interact with each other and with growth regulatory components to balance growth and stress responses. Here, we show that plant growth is largely regulated by the interplay between the evolutionarily conserved energy-sensing...
Pre-mRNA splicing repression triggers abiotic stress signaling in plants
Ling, Yu; Alshareef, Sahar; Butt, Haroon; Lozano-Juste, Jorge; Li, Lixin; Galal, Aya A.; Moustafa, Ahmed; Momin, Afaque A.; Tashkandi, ManalAlternative splicing (AS) of precursor RNAs enhances transcriptome plasticity and proteome diversity in response to diverse growth and stress cues. Recent work has shown that AS is pervasive across plant species, with more than 60% of intron-containing genes producing different isoforms. Mammalian cell-based assays have discovered various inhibitors of AS. Here, we show that the macrolide pladienolide B (PB) in...
Abscisic acid inhibits type 2C protein phosphatases via the PYR/PYL family of S...
Park, Sang-Youl; Fung, Pauline; Nishimura, Noriyuki; Jensen, Davin R.; Fujii, Hiroaki; Zhao, Yang; Lumba, Shelley; Santiago, Julia; Rodrigues, AméricoType 2C protein phosphatases (PP2Cs) are vitally involved in abscisic acid (ABA) signaling. Here, we show that a synthetic growth inhibitor called pyrabactin functions as a selective ABA agonist. Pyrabactin acts through PYRABACTIN RESISTANCE 1 (PYR1), the founding member of a family of START proteins called PYR/PYLs, which are necessary for both pyrabactin and ABA signaling in vivo. We show that ABA binds to PY...
HAB1–SWI3B interaction reveals a link between abscisic acid signaling and putat...
Saez, Angela; Rodrigues, Américo; Santiago, Julia; Rubio, Silvia; Rodriguez, Pedro L.Abscisic acid (ABA) has an important role for plant growth, development, and stress adaptation. HYPERSENSITIVE TO ABA1 (HAB1) is a protein phosphatase type 2C that plays a key role as a negative regulator of ABA signaling; however, the molecular details of HAB1 action in this process are not known. A two-hybrid screen revealed that SWI3B, an Arabidopsis thaliana homolog of the yeast SWI3 subunit of SWI/SNF chro...