Stomatal Functionality in High Humidity Environments
Summary
Stomata are microscopic pores on the leaf surface that mediate gas exchange and water loss in plants. Under conditions of elevated relative humidity, stomatal development and operation can be profoundly altered, often leading to enlarged pore structures and reduced responsiveness to closing stimuli. Such changes compromise water‐use efficiency and can predispose plants to stress when moved to drier environments. Recent research has highlighted the central role of hormone signalling—particularly abscisic acid dynamics—in modulating stomatal aperture under high humidity. Concurrently, advances in transcriptomic and metabolomic profiling have begun to unravel the gene networks and metabolic pathways that underpin stomatal plasticity in these environments. A deeper understanding of these responses is vital for optimising crop performance in controlled‐environment agriculture and for predicting plant resilience in a changing climate characterised by fluctuating atmospheric moisture.
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Stomatal Functionality in High Humidity Environments publication trend
The graph below shows the total number of articles in stomatal functionality in high humidity environments across all publications each year (not limited to Nature Index journals).
Technical terms
Stomata: Pores on the leaf epidermis flanked by guard cells that regulate gas exchange and water vapour loss.
Relative humidity (RH): The proportion of water vapour present in the air relative to the maximum it can hold at a given temperature.
Abscisic acid (ABA): A plant hormone central to stress responses that induces stomatal closure under water‐limited conditions.
Transcriptomics: The study of the complete set of RNA transcripts produced by the genome under specific conditions.
Metabolomics: The comprehensive analysis of metabolites within a biological sample, reflecting physiological status and environmental responses.
References
- Contrast Relative Humidity Response of Diverse Cowpea (Vigna unguiculata (L.) Walp.) Genotypes: Deep Study Using RNAseq Approach. International Journal of Molecular Sciences (2024).
- Integrated Metabolomic and Transcriptomic Analysis of the Quinoa Seedling Response to High Relative Humidity Stress. Biomolecules (2023).
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