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Thermoluminescence of Plant Leaves

1998
Chlorophyll luminescence (delayed fluorescence) originates from photosystem-II (PS-II) and results from the recombination of charges pairs created by a previous illumination. Thermoluminescence (TL) is a particular technique to study luminescence emission, which consists in (i) cooling the sample before or immediately after an illumination at a ...
J. M. Ducruet, A. Toulouse, M. Roman
openaire   +1 more source

Effects of Gravity on Transpiration of Plant Leaves

Annals of the New York Academy of Sciences, 2009
To clarify effects of gravity on the water vapor exchange between plants and the ambient air, we evaluated the transpiration rate of plant leaves at 0.01, 1.0, and 2.0 g for 20 s each during parabolic airplane flights. The transpiration rates of a strawberry leaf and a replica leaf made of wet cloth were determined using a chamber method with humidity ...
Hiroaki, Hirai, Yoshiaki, Kitaya
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Atmospheric Ammonia: Absorption by Plant Leaves

Science, 1972
By monitoring the disappearance of ammonia from an airstream flowing through a small growth chamber containing a single plant seedling, it was discovered that plant leaves absorb significant quantities of ammonia from the air, even at naturally occurring low atmospheric concentrations.
G L, Hutchinson   +2 more
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Real-time rendering of plant leaves

ACM SIGGRAPH 2006 Courses on - SIGGRAPH '06, 2005
This paper presents a framework for the real-time rendering of plant leaves with global illumination effects. Realistic rendering of leaves requires a sophisticated appearance model and accurate lighting computation. For leaf appearance we introduce a parametric model that describes leaves in terms of spatially-variant BRDFs and BTDFs.
Lifeng Wang 0001   +5 more
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Superexpression of tuberculosis antigens in plant leaves

Tuberculosis, 2007
Recent developments in genetic engineering allow the employment of plants as factories for 1/foreign protein production. Thus, tuberculosis (TB) ESAT6 antigen was expressed in different plant systems, but the level of vaccine protein accumulation was extremely low. We describe the technology for superexpression of TB vaccine proteins (Ag85B, ESAT6, and
Yuri L, Dorokhov   +6 more
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Organogenesis in plants: initiation and elaboration of leaves

Trends in Genetics, 2015
Plant organs initiate from meristems and grow into diverse forms. After initiation, organs enter a morphological phase where they develop their shape, followed by differentiation into mature tissue. Investigations into these processes have revealed numerous factors necessary for proper development, including transcription factors such as the KNOTTED ...
Aaron, Sluis, Sarah, Hake
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Metabolism of sedoheptulose-C14 in plant leaves

Archives of Biochemistry and Biophysics, 1954
Abstract 1. 1. Sedoheptulose-C14 in leaves in the light and in air is rapidly converted to sucrose. In similar experiments in the dark the sedoheptulose is metabolized to respiratory products such as glutamic, aspartic, and succinic acids. 2. 2.
N E, TOLBERT, L P, ZILL
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INSECT ANTIFEEDING SUBSTANCES IN PLANT LEAVES

Pure and Applied Chemistry, 1975
Abstract
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Photopyroelectric Microscopy of Plant Leaves

International Journal of Thermophysics, 2007
The use of photothermal microscopy to obtain superficial and in-depth images, by means of the interaction of a thermal wave with the analyzed material, has reached great interest due to its numerous applications. The application of the photopyroelectric microscopy technique to obtain images of plant leaves is presented in this article.
B. R. Briseño-Tepepa   +5 more
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Aerosol deposition on plant leaves

Water, Air, and Soil Pollution, 1977
An aerosol generator and wind tunnel system designed for use in aerosol deposition are described. Gross deposition on rough pubescent leaves was nearly seven times greater than on smooth, waxy leaves. Results suggest that aerosol deposition, on a per unit area basis, for single horizontal streamlining leaves is similar to that for arrays of leaves ...
JamesB. Wedding   +3 more
openaire   +1 more source

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