Adapting crops for climate change: regaining lost abiotic stress tolerance in crops

Frontiers in Science, Journal Year: 2024, Volume and Issue: 2

Published: Dec. 5, 2024

It is often stated that agricultural outputs need to increase substantially meet the demands for more food posed by a growing population. However, when accounting climate change, we argue current projected increases are unrealistic and realistic goal would be maintain yields per area of production. This will require breeding crops with increased tolerance abiotic stresses such as drought, salinity, waterlogging, high temperatures. can accomplished in one two ways: introducing stress genes into present high-yielding or increasing already tolerant orphan and/or wild plants. We first strategy easing restrictions on use gene editing technologies making substantial improvements cell-based phenotyping identify available pool crop its relatives. The success second depend number domestication selected order obtain comparable present-day cultivars. still too early conclude which strategies, rewilding (bringing lost from ancestors back domesticated crops) de novo (domesticating resilient plants underutilized directly), most effective future sustainable agriculture. given importance issue, some rapid action needs taken.

Language: Английский

Propionic Acid Signalling Modulates Stomatal Opening and Drives Energy Metabolism to Enhance Drought Resistance in Wheat (Triticum aestivum L.)

Plant Cell & Environment, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

ABSTRACT Drought stress caused by global climate change severely imperils crop productivity and increases environmental deterioration. Wheat ( Triticum aestivum L.) is an important worldwide food crop. resistance in wheat encompasses functional gene transcription, metabolism, hormone signalling, protein modifications. However, the underlying mechanisms which these regulatory responses are coordinated remain unknown. Herein, we report a drought‐resistance network triggers dynamic metabolic flux conversion from propionic acid (PA) to tricarboxylic (TCA) cycle through beta‐oxidation of fatty acids stimulates crosstalk various hormonal signals. It also possible that P300/CREB regulates histone acetylation confer drought wheat. Exogenous PA drives TCA glycolysis promotes stomatal closure hormones crosstalk. From Aegilops tauschii Cosson (the diploid progenitor common wheat) wheat, this novel function serves as survival strategy against changes, was validated field experiments. Our results highlight new comprehensive systemic effects genes, metabolomics, modification on provide insights into improving agroecological environment.

Language: Английский

Identification of a novel gene PpBCG1 that has a positive role in desiccation tolerance in the moss Physcomitrium patens

Journal of Experimental Botany, Journal Year: 2024, Volume and Issue: 75(20), P. 6609 - 6624

Published: July 31, 2024

The moss Physcomitrium patens is a model system for the evolutionary study of land plants, and as such, it may contain yet unannotated genes with functions related to adaptation water deficiency that was required during water-to-land transition. In this study, we identified novel gene, Bryophyte Co-retained Gene 1 (BCG1), in P. responsive dehydration rehydration. Under de- rehydration treatments, BCG1 significantly co-expressed DHNA, which encodes dehydrin (DHN). Examination previous microarray data revealed highly expressed spores, archegonia (female reproductive organ), mature sporophytes. addition, bcg1 mutant showed reduced tolerance, accompanied by relatively low level chlorophyll content recovery. Comprehensive transcriptomics uncovered detailed set regulatory processes were affected disruption BCG1. Experimental evidence might function antioxidant activity, abscisic acid pathway, intracellular Ca2+ homeostasis resist desiccation. Overall, our results provide insights into role bryophyte co-retained gene desiccation tolerance.

Language: Английский