On the Direct Observation of Water-FIuxes in Tissues and Leaves

1986 ◽  
Vol 41 (9-10) ◽  
pp. 923-927 ◽  
Author(s):  
Ulrich-Andreas Hirth ◽  
Rüdiger Lawaczeck
Keyword(s):  
Absorption Spectra ◽  
Direct Observation ◽  
Filter Paper ◽  
Near Infrared ◽  
New Method ◽  
Plant Leaves ◽  
Thin Sections ◽  
Physical Background

Abstract Based on the different absorption spectra of H2O and D2O in the near infrared (NIR, 800-2200 nm) a strategy is developed to measure H2O/D2O-fluxes in thin sections. The physical background of the method is presented. Results on the H2O/D2O-fluxes in filter paper and plant leaves together with both the physical and biological limitations of the new method are discussed.

Ectodesmata as Revealed By Freeze-Etch Preparations of Plant Epidermal Cell Walls

1973 ◽  
Vol 31 ◽  
pp. 468-469
Author(s):  
N.C. Lyon ◽  
W. C. Mueller
Keyword(s):  
Electron Microscopy ◽  
Acetic Acid ◽  
Nitric Acid ◽  
Oxalic Acid ◽  
Light Microscopy ◽  
Epidermal Cell ◽  
Cell Walls ◽  
Plant Viruses ◽  
Plant Leaves ◽  
Thin Sections

Schumacher and Halbsguth first demonstrated ectodesmata as pores or channels in the epidermal cell walls in haustoria of Cuscuta odorata L. by light microscopy in tissues fixed in a sublimate fixative (30% ethyl alcohol, 30 ml:glacial acetic acid, 10 ml: 65% nitric acid, 1 ml: 40% formaldehyde, 5 ml: oxalic acid, 2 g: mecuric chloride to saturation 2-3 g). Other workers have published electron micrographs of structures transversing the outer epidermal cell in thin sections of plant leaves that have been interpreted as ectodesmata. Such structures are evident following treatment with Hg++ or Ag+ salts and are only rarely observed by electron microscopy. If ectodesmata exist without such treatment, and are not artefacts, they would afford natural pathways of entry for applied foliar solutions and plant viruses.

A New Method for the Synthesis of Heptamethine Cyanine Dyes:  Synthesis of New Near Infrared Fluorescent Labels

1997 ◽  
Vol 62 (26) ◽  
pp. 9387-9387 ◽  
Author(s):  
Narasimhachari Narayanan ◽  
Lucjan Strekowski ◽  
Malgorzata Lipowska ◽  
Gabor Patonay
Keyword(s):  
Near Infrared ◽  
Cyanine Dyes ◽  
New Method ◽  
Fluorescent Labels

A new method for cutting thin sections from prehistoric charcoal specimen

1986 ◽  
Vol 48 (1-3) ◽  
pp. 295-301 ◽  
Author(s):  
Giovanna P. Longo Marziani ◽  
Alessandro Iannone
Keyword(s):  
New Method ◽  
Thin Sections

Two-photon absorption spectra of a near-infrared 2-azaazulene polymethine dye: solvation and ground-state symmetry breaking

2013 ◽  
Vol 15 (20) ◽  
pp. 7666 ◽  
Author(s):  
Honghua Hu ◽  
Olga V. Przhonska ◽  
Francesca Terenziani ◽  
Anna Painelli ◽  
Dmitry Fishman ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Absorption Spectra ◽  
Ground State ◽  
Near Infrared ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Polymethine Dye

Near infrared absorption spectra in Co3O4

1994 ◽  
Vol 91 (9) ◽  
pp. 731-733 ◽  
Author(s):  
N. Mironova ◽  
V. Skvortsova ◽  
U. Ulmanis
Keyword(s):  
Absorption Spectra ◽  
Infrared Absorption ◽  
Near Infrared ◽  
Infrared Absorption Spectra

scholarly journals Near-Infrared Transillumination Back Scattering Sounding—New Method to Assess Brain Microcirculation in Patients with Chronic Carotid Artery Stenosis

PLoS ONE ◽  
2013 ◽  
Vol 8 (4) ◽  
pp. e61936 ◽  
Author(s):  
Andrzej F. Frydrychowski ◽  
Pawel J. Winklewski ◽  
Arkadiusz Szarmach ◽  
Grzegorz Halena ◽  
Tomasz Bandurski
Keyword(s):  
Carotid Artery ◽  
Carotid Artery Stenosis ◽  
Near Infrared ◽  
Artery Stenosis ◽  
New Method ◽  
Back Scattering ◽  
Brain Microcirculation
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