#stomata — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #stomata, aggregated by home.social.
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Are smaller stomata faster in reacting to environmental changes such as light, CO2, atmospheric humidity, temperature ? I have participated with our data in a group publication where we take a closer look at the "Speedy small stomata" paradigm.
Using data from over 80 plant species, we found only weak correlations between stomatal size and maximum stomatal closing or opening speeds as well as response times.
Instead, stomatal speed appears to be context-dependent, shaped by species-specific traits, stomatal type and broader anatomical and physiological features.
These findings support a trait-based approach to assessing stomatal kinetics, which has implications for understanding #EcosystemFunctioning under #ClimateChange and #CropBreeding for higher #WaterUseEfficiency and #photosynthesis.Woning et al. Revisiting the relationship between stomatal size and speed across species – a meta-analysis
https://doi.org/10.1111%2Fnph.70842
#AcademicChatter #BioDiversity #ClimateChange #PlantPhysiology
#Stomata -
Volatile organic compounds (#VOCs) emitted by injured plants increase the cytosolic Ca2+ concentration in non-injured #Arabidopsis #leaves indicating that volatiles trigger the expression of biotic and abiotic #stress-responsive genes in a Ca2+-dependent manner. Tissue-specific high-resolution Ca2+ imaging shows that VOCs are rapidly taken up by the inner tissues via #stomata, leading to cytosolic Ca2+ increases and subsequent #defense responses in Arabidopsis leaves.