Burning questions for a warming and changing world: 15 unknowns in plant abiotic stress

• DOI: 10.1093/plcell/koac263
• Publication Date: 2022-08-26T14:00:05Z
• Authors: Paul E Verslues; Julia Bailey-Serres; Craig Brodersen; Thomas N Buckley; Lucio Conti; Alexander Christmann; José R Dinneny; Erwin Grill; Scott Hayes; Robert W Heckman; Po-Kai Hsu; Thomas E Juenger; Paloma Mas; Teun Munnik; Hilde Nelissen; Lawren Sack; Julian I Schroeder; Christa Testerink; Stephen D Tyerman; Taishi Umezawa; Philip A Wigge
• Keywords: 0301 basic medicine; 570; Physiological; Climate Change; ROOT-SYSTEM ARCHITECTURE; Plant Biology & Botany; Plant Biology; Plant Science; Stress; 03 medical and health sciences; Stress, Physiological; Genetics; Life Science; 580; 2. Zero hunger; 0303 health sciences; CLIMATE-CHANGE; Biology and Life Sciences; Water; Plant Transpiration; Cell Biology; ABSCISIC-ACID; Carbon Dioxide; Plants; 15. Life on land; ddc:; LEAF HYDRAULIC CONDUCTANCE; SALT STRESS; Climate Action; ENABLES DROUGHT ESCAPE; FLOWERING-LOCUS-T; 13. Climate action; ARABIDOPSIS-THALIANA; Biochemistry and Cell Biology; WATER-USE EFFICIENCY; PROLINE DEHYDROGENASE CONTRIBUTES; Focus on Climate Change and Plant Abiotic Stress

We present unresolved questions in plant abiotic stress biology as posed by 15 research groups with expertise spanning eco-physiology to cell and molecular biology. Common themes of these include the need better understand how plants detect water availability, temperature, salinity, rising carbon dioxide (CO2) levels; environmental signals interface endogenous signaling development (e.g. circadian clock flowering time); this integrated controls downstream responses stomatal regulation, proline metabolism, growth versus defense balance). The plasma membrane comes up frequently a site key transport events mechanosensing lipid-derived signaling, aquaporins). Adaptation extremes CO2 affects hydraulic architecture transpiration, well root shoot morphology, ways not fully understood. Environmental adaptation involves tradeoffs that limit ecological distribution crop resilience face changing increasingly unpredictable environments. Exploration diversity within among species can help us know which represent fundamental limits ones be circumvented bringing new trait combinations together. Better defining what constitutes beneficial resistance different contexts making connections between genes phenotypes, laboratory field observations, are overarching challenges.