Models considering only the maximum photosynthetic capacity for all leaves over-estimated net carbon dioxide exchange by nearly a third.
Tag - transpiration
Erin Zimmerman
Water balance in potassium-limited barley
Limited supply of mineral nutrients such as potassium increases the root-to-shoot ratio. This also increases the ratio between water-absorbing and -losing plant surface. Water uptake per unit surface has to either...
Alex Assiry![Reconstructions of Arabica coffee plants cultivated under elevated (e[CO2], in A) and actual (a[CO2], in B)](https://i0.wp.com/botany.one/wp-content/uploads/2018/05/mcy011.jpg?resize=585%2C300&ssl=1)
Structural and functional responses of coffee trees to elevated [CO2]
Air [CO2] tends to increase due to climate changes, affecting plant growth. Field-grown Coffea arabica trees were grown under actual and elevated [CO2] for four years. Rakocevic et al. find that elevated [CO2]...
botanyone
Shoot control of root aquaporin expression in rice
Seeking to uncover the responses of root hydraulics and water uptake to transpirational water loss, Meng et al. analyse three-week old rice plants, observing changes in root aquaporin expression and hydraulic...
Hydathode trichomes in parasitic Orobanchaceae
This study provides the first evidence for the physiological role of the hydathode trichomes in active water secretion in the rhinanthoid Orobanchaceae.
Newton thwarted by the ascent of sap
Is botany nothing more than a matter of physics?
Nigel Chaffey
Plant parts doing unexpected things: Part 1 (or, Giving transpiration a little boost…)
In order to survive in desert-like areas. date palms substantially rely on the exploitation and recharge of the stem reservoir in their water budget.
Fruit removal increases root zone respiration in cucumber
Kläring et al. find that removing all fruit from the cucumber plant results in a doubling of the root-zone respiration within a few hours.
Accurately measuring cavitation resistance to understand how plants cope with drought
Cavitation resistance is crucial to coping with and surviving drought.
Danielle Marias
Heterozygosity–fitness correlations in pedunculate oak
Various transpiration and growth traits of seedlings of pedunculate oak, Quercus robur, are correlated with their multilocus heterozygosity (MLH).
Developmental changes in root hydraulics (Research in Context)
A study of barley plants during the early stages of vegetative development (9–28 d old) to determine by what means root water uptake is increased.
Abscisic acid underlies genotypic variation in stomatal responses
Stomata formed at high relative humidity (RH) are less responsive to abscisic acid (ABA), an effect that varies widely between genotypes. Giday et al. study four rose cultivars (Rosa hybrida) grown at 60% and 90% RH and...
Mum versus Dad: Parent–offspring conflict in mosses
Non-flowering plants have rather complex reproductive life cycles compared to the more familiar pattern of fertilization and seed formation seen in Angiosperms.
AJ Cann