Why did Gingko almost disappear during the Triassic–Jurassic mass extinction when ferns did so well? The answer has relevance for future atmospheric changes.
Tag - stomatal conductance
botanyone
Predicting habitat affinities with drought tolerance traits in herbaceous dicots
Soil water availability is an important mechanism filtering plant species. Twenty-five herbaceous dicot species were grown under controlled conditions in order to measure a suite of physiological traits associated with...
Effects of environmental factors on dark-adapted photosynthetic induction
Plants grow in a variable environment. While the effects of various environmental factors such as CO2 concentration, temperature, air humidity, and blue light on steady-state photosynthesis have been well documented...
Seedling photosynthesis and leaf respiration under climate change
Climate change is expected to bring warmer temperatures and more variable precipitation patterns worldwide, patterns that will depend on the ability of the world’s flora to take up carbon under these new conditions. In...
AoBPLANTS
Concurrent measurements of stomatal conductance, sap pH and hydraulic conductance in Eucalyptus globulus clones
Selected Eucalyptus globulus clones can grow to a height of up to 14m in 3 years, receiving an average rainfall of 630 mm year–1 with a 4-month summer drought. Working with plants under a year old from five clones...
Ecophysiology of four co-occurring Lycophyte species: an investigation of functional convergence
Modern clubmosses (Lycophytes) are a vestige of their gargantuan carboniferous ancestors that dominated the paleoflora flora for millions of years. The group has a broad global distribution ranging from tundra to...
Water stress acclimation in xeric but not riparian Eucalyptus
Experimental drought is well documented to induce a decline in photosynthetic capacity. However, if given time to acclimate to low water availability, the photosynthetic responses of plants to low soil moisture content...
Phosphorus and elevated CO2 enhance drought tolerance
Benefits to crop productivity arising from increasing CO2 fertilization may be offset by detrimental effects of global climate change, such as an increasing frequency of drought. Phosphorus ( P ) nutrition plays an...
Avoidance of ozone-induced stress via stomatal closure
Stomatal closure can be caused by an increase in internal CO2 concentration resulting from ozone-induced inhibition of carbon assimilation by chloroplasts; however, if stomata can close as a direct response to O3 then...
Cytokinins can trigger hypersensitive-like responses
Activating the gene ipt to produce high levels of cytokinins in tobacco is sufficient to trigger fast cell death without intervening chlorosis.
Adaptation of cotton bracts to high CO2
They conclude that cotton bracts provide readily available material for studying adaptations to elevated CO2.
My, what big leaves you’ve got
The spatial-temporal patterns of stomatal conductance may represent an adaptation for avoiding local water stress.
AJ Cann
Will climate change threaten your drinking habits?
Will climate change threaten my (and possibly your) drinking habits? Read this and find out.
