Results 31 to 40 of about 12,902 (271)

Coordination of leaf hydraulic, anatomical, and economical traits in tomato seedlings acclimation to long-term drought

open access: yesBMC Plant Biology, 2021
Background Leaf hydraulic and economics traits are critical for balancing plant water and CO2 exchange, and their relationship has been widely studied. Leaf anatomical traits determine the efficiency of CO2 diffusion within mesophyll structure.
Shuang Li   +5 more
doaj   +1 more source

Mesophyll conductance: the leaf corridors for photosynthesis

open access: yesBiochemical Society Transactions, 2020
Besides stomata, the photosynthetic CO2 pathway also involves the transport of CO2 from the sub-stomatal air spaces inside to the carboxylation sites in the chloroplast stroma, where Rubisco is located. This pathway is far to be a simple and direct way, formed by series of consecutive barriers that the CO2 should cross to be finally assimilated in ...
Gago, Jorge   +7 more
openaire   +2 more sources

Modifying mesophyll conductance to optimise photosynthesis in crops [PDF]

open access: yes, 2023
Mesophyll conductance (gm), the ease with which carbon dioxide can diffuse into and through plant cells, is a promising target for improving photosynthetic rates in plants. Barriers including cell walls, membranes, liquid phases and the anatomy and orientation of the cells and their subcellular organelles impose resistances on carbon dioxide diffusion ...
Salesse-Smith, Coralie E.   +2 more
openaire   +3 more sources

Exogenous melatonin strongly affects dynamic photosynthesis and enhances water-water cycle in tobacco

open access: yesFrontiers in Plant Science, 2022
Melatonin (MT), an important phytohormone synthesized naturally, was recently used to improve plant resistance against abiotic and biotic stresses.
Hu Sun   +7 more
doaj   +1 more source

Temperature responses of mesophyll conductance differ greatly between species [PDF]

open access: yesPlant, Cell & Environment, 2014
AbstractThe temperature responses of mesophyll conductance (gm) were investigated for nine species using carbon isotope techniques combining tunable diode laser spectroscopy and gas exchange measurements. Species included the evergreen trees Eucalyptus pauciflora and Quercus engelmannii; the tropical evergreen tree Lophostemon confertus; as well as the
von Caemmerer, Susanne, Evans, John R.
openaire   +3 more sources

Stomatal, mesophyll conductance, and biochemical limitations to photosynthesis during induction [PDF]

open access: yesPlant Physiology, 2020
Abstract The dynamics of leaf photosynthesis in fluctuating light affects carbon gain by plants. Mesophyll conductance (gm) limits CO2 assimilation rate (A) under the steady state, but the extent of this limitation under non-steady-state conditions is unknown.
Kazuma Sakoda   +3 more
openaire   +3 more sources

Variable mesophyll conductance revisited: theoretical background and experimental implications [PDF]

open access: yesPlant, Cell & Environment, 2012
ABSTRACTThe CO2 concentration at the site of carboxylation inside the chloroplast stroma depends not only on the stomatal conductance, but also on the conductance of CO2 between substomatal cavities and the site of CO2 fixation. This conductance, commonly termed mesophyll conductance (gm), significantly constrains the rate of photosynthesis.
Danny, Tholen   +4 more
openaire   +2 more sources

Gas exchange variables as promising criteria for screening freezing‐tolerant faba bean (Vicia faba L.) landraces at early growth stages

open access: yesLegume Science, 2021
Photosynthesis is one of the parameters first affected by freezing stress. So studying the efficiency of photosynthetic parameters could be an effective strategy in screening freezing‐tolerant genotypes.
Jafar Nabati   +4 more
doaj   +1 more source

Passive phloem loading and long-distance transport in a synthetic tree-on-a-chip [PDF]

open access: yes, 2017
Vascular plants rely on differences of osmotic pressure to export sugars from regions of synthesis (mature leaves) to sugar sinks (roots, fruits). In this process, known as M\"unch pressure flow, the loading of sugars from photosynthetic cells to the ...
A Lang   +36 more
core   +2 more sources

Emerging roles for carbonic anhydrase in mesophyll conductance and photosynthesis [PDF]

open access: yesThe Plant Journal, 2020
SummaryCarbonic anhydrase (CA) is an abundant protein in most photosynthesizing organisms and higher plants. This review paper considers the physiological importance of the more abundant CA isoforms in photosynthesis, through their effects on CO2 diffusion and other processes in photosynthetic organisms.
Mina Momayyezi   +3 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy