What are the anatomical and physiological strategies Polystichum acrostichoides uses to maintain photosynthesis and avoid hydraulic failure across the year?
Tag - water relations
William Salter
Enhanced cell dehydration tolerance and photosystem stability facilitate the occupation of cold alpine habitats by a homoploid hybrid species, Picea purpurea
Homoploid hybrid speciation – hybrid speciation without a change in chromosome number and facilitated by ecological divergence – is well known in angiosperms but rare in gymnosperms. To date, only two conifer species...
Physiological variation of Prosopis species under drought conditions
Actions aimed at reforesting arid areas around the world are becoming increasingly complex. In a recent study published in AoB PLANTS, Carevic et al. evaluated the physiological resistance to drought stress of Prosopis...
AoBPLANTS
Atmospheric change, plant water status and the origins of agriculture
The genesis of agricultural practice marks one of the most important events in human history. Low atmospheric CO2 has previously been shown to limit the productivity of the wild progenitors of C3 and C4 founder crops...
botanyone
To cope, or not to cope: tropical rainforest tree leaves show little response to drought
Drought will become more severe in tropical rainforests as climate change continues. This could cause widespread tree mortality in these forests, unless the trees are able to acclimate and produce leaves that can...
Joseph Stinziano
Everything benefits from a little lift
Roots generally absorb water from the soil and transport it above ground to the stem, branches, etc. Where the soil is too dry for water to be absorbed by the roots, the roots might actually lose water to the soil and...
Nigel Chaffey
Modelling root pressure using stem diameter variations
Root pressure can contribute to upward xylem water flow but it is difficult to measure directly. De Swaef et al. make continuous measurements of sap flow and stem diameter variations and combine them with a mechanistic...
Development of the midrib xylem during leaf expansion
The water-transport capacity of leaf venation is positively related to the leaf-lamina area, because the number and diameter of vein-xylem conduits are properly controlled to match the lamina area. Taneda and...
Every day is Dewsday in the forest…
The dew point is ‘the temperature to which a volume of humid air must be cooled… for water vapor to condense into liquid water’, and is usually an early-morning or early-evening phenomenon in nature. OK, but, ‘what is...
