AnWRKY29 and AnHSP90 synergistically modulate trehalose levels in a desert shrub leaves during osmotic stress

Citations Over TimeTop 10% of 2024 papers

Abstract

Trehalose, a biological macromolecule with osmotic adjustment properties, plays a crucial role during osmotic stress. As a psammophyte, Ammopiptanthus nanus relies on the accumulation of organic solutes to respond to osmotic stress. We utilized virus-induced gene silencing technology for the first time in the desert shrub A. nanus to confirm the central regulatory role of AnWRKY29 in osmotic stress, as it controls the transcription of AnTPS11 (trehalose-6-phosphate synthase 11). Further investigation has shown that AnHSP90 may interact with AnWRKY29. The AnHSP90 gene is sensitive to osmotic stress, underscoring its pivotal role in orchestrating the response to such adverse conditions. By directly targeting the W-box element within the AnTPS11 promoter, AnWRKY29 effectively enhances the transcriptional activity of AnTPS11, which is facilitated by AnHSP90. This discovery highlights the critical role of AnWRKY29 and AnHSP90 in enabling organisms to adapt to and cope effectively with osmotic stress, which can be a crucial factor in A. nanus survival and overall ecological resilience. Collectively, uncovering the molecular mechanisms underlying the osmotic responses of A. nanus is paramount for comprehending and augmenting the osmotic tolerance mechanisms of psammophyte shrub plants.

Related Papers

• → Role of trehalose in survival of Saccharomyces cerevisiae under osmotic stress(1998)278 cited
• → Specific stress-induced storage of trehalose, glycerol and d-arabitol in response to oxidative and osmotic stress in Candida albicans(2012)56 cited
• → Physiological Response of Different Wine Yeasts to Hyperosmotic Stress(2010)9 cited
• → Loading Trehalose into Red Blood Cells by Improved Hypotonic Method(2008)9 cited
• On the role of trehalose in yeast cells subjected to hypersomotic shock.(1991)