Results 11 to 20 of about 9,134 (223)

Was the evolution of faster stomata driven by increased gas exchange rates rather than increasing water use efficiency? [PDF]

open access: yesNew Phytol
Summary Following changes in light flux, photosynthesis (A) typically adjusts more quickly than stomatal conductance (gs), which is dependent on changes in stomatal aperture. Faster stomatal responses are proposed to reduce water loss and enhance growth in dynamic light environments. Stomatal opening and closing parameters were determined in a range of
Brench RA   +4 more
europepmc   +2 more sources

Mode of Action of the Natural Product Allicin in a Plant Model: Influence on the Cytoskeleton and Subsequent Shift in Auxin Localization

open access: yesApplied Sciences, 2022
Allicin is a defense substance produced by garlic cells when they are injured. It is a redox-active thiosulfinate showing redox-activity with a broad range of dose-dependent antimicrobial and biocidal activity.
Ulrike Noll   +5 more
doaj   +1 more source

Epidemiology and Genetics of Rheumatic Diseases Suggest a Constant Rate of DNA Damage as Underlying Cause. [PDF]

open access: yesImmunology
A constant rate of DNA damage that is not perfectly repaired will cause a constant rate of DNA mutations. The chance of mutation will increase if DNA is prone to damage, such as occurs in somatic hypermutation (SHM) hotspots and GC‐rich DNA. Thus, if one mutation‐prone DNA site drives disease, the age of onset of disease and degree of penetrance should
de Groen PC.
europepmc   +2 more sources

Effect of (Changes in) Air Humidity on Transpiration and (Adaptation of) Stomatal Closure of Tradescantia Leaves during Water Stress [PDF]

open access: yes, 2009
This paper summarises our recent research on the physiological effects of prolonged high RH during growth on stomatal function and we discuss possibilities that arise from this work for reducing postharvest quality problems in cut flowers.
Harbinson, J.   +2 more
core   +2 more sources

Morphological phylogeny of Tradescantia L. (Commelinaceae) sheds light on a new infrageneric classification for the genus and novelties on the systematics of subtribe Tradescantiinae

open access: yesPhytoKeys, 2017
Throughout the years, three infrageneric classifications were proposed for Tradescantia along with several informal groups and species complexes. The current infrageneric classification accepts 12 sections – with T. sect.
Marco O. O. Pellegrini
doaj   +3 more sources

Effect of Relative Air Himidity on the Stomatal Functionality in Fully Developed Leaves [PDF]

open access: yes, 2010
Several studies have shown that stomata developed under long-term high relative air humidity (RH =85%) are malfunctional, resulting in a poor control of water loss.
Carvalho, S.M.P.   +3 more
core   +2 more sources

New and Noteworthy Plants of Texas [PDF]

open access: yes, 2010
Rhexia alifanus (Melastomataceae) and Rhynchospora inundatum (Cyperaceae), both previously reported in the state, are documented as part of the flora of the state.
Holmes, Walter C.   +2 more
core   +1 more source

Patterns of amyloplast distribution during microsporogenesis in Tradescantia, Impatiens and Larix

open access: yesActa Societatis Botanicorum Poloniae, 2014
During the meiotic prophase I in Tradescantia and Impatiens microsporocyte becomes temporarily asymmetric, with excentrically situated nucleus and all amyloplasts gathered in a dense group close to the nuclear envelope..
Bohdan Rodkiewicz   +2 more
doaj   +1 more source

Radiobiological studies with monoenergetic neutrons [PDF]

open access: yes, 1973
The Radiological Research Accelerator Facility (RARAF) has the capability of producing essentially monoenergetic neutron beams, ranging in energy from 16.4 MeV down to 220 keV.
Goodman, L. J.   +4 more
core   +1 more source

Comparison of X-ray and gamma-ray dose-response curves for pink somatic mutations in Tradescantia clone 02 [PDF]

open access: yes, 1976
Microdosimetric data indicate that the mean specific energy,zeta, produced by individual charged particles from X rays and gamma rays is different for the two radiation qualities by nearly a factor of two.
A. G. Underbrink   +17 more
core   +1 more source

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