Coalification of Woody Tissue as Deduced From a Petrographic Study of Brandon Lignite

1966 ◽  
pp. 695-707 ◽  
Author(s):  
WILLIAM SPACKMAN ◽  
ELSO S. BARGHOORN
Keyword(s):  
Woody Tissue ◽  
Petrographic Study

scholarly journals Woody-tissue respiration

2002 ◽  
Vol 153 (1) ◽  
pp. 8-9
Author(s):  
M. P. Lavigne
Keyword(s):  
Tissue Respiration ◽  
Woody Tissue

scholarly journals Woody tissue photosynthesis in trees: salve on the wounds of drought?

2015 ◽  
Vol 208 (4) ◽  
pp. 998-1002 ◽  
Author(s):  
Maurits W. Vandegehuchte ◽  
Jasper Bloemen ◽  
Lidewei L. Vergeynst ◽  
Kathy Steppe
Keyword(s):  
Woody Tissue ◽  
Woody Tissue Photosynthesis

scholarly journals Volatile organic emissions from the distillation and pyrolysis of vegetation

2006 ◽  
Vol 6 (1) ◽  
pp. 81-91 ◽  
Author(s):  
J. P. Greenberg ◽  
H. Friedli ◽  
A. B. Guenther ◽  
D. Hanson ◽  
P. Harley ◽  
...  
Keyword(s):  
Pinus Ponderosa ◽  
Woody Plant ◽  
Dry Weight ◽  
Saccharum Officinarum ◽  
Charcoal Production ◽  
Woody Tissue ◽  
Eucalyptus Saligna ◽  
Voc Emissions ◽  
Volatile Organic ◽  
Flaming Combustion

Abstract. Leaf and woody plant tissue (Pinus ponderosa, Eucalyptus saligna, Quercus gambelli, Saccharum officinarum and Oriza sativa) were heated from 30 to 300°C and volatile organic compound (VOC) emissions were identified and quantified. Major VOC emissions were mostly oxygenated and included acetic acid, furylaldehyde, acetol, pyrazine, terpenes, 2,3-butadione, phenol and methanol, as well as smaller emissions of furan, acetone, acetaldehyde, acetonitrile and benzaldehyde. Total VOC emissions from distillation and pyrolysis were on the order of 10 gC/kgC dry weight of vegetation, as much as 33% and 44% of CO2 emissions (gC(VOC)/gC(CO2)) measured during the same experiments, in air and nitrogen atmospheres, respectively. The emissions are similar in identity and quantity to those from smoldering combustion of woody tissue and of different character than those evolved during flaming combustion. VOC emissions from the distillation of pools and endothermic pyrolysis under low turbulence conditions may produce flammable concentrations near leaves and may facilitate the propagation of wildfires. VOC emissions from charcoal production are also related to distillation and pyrolysis; the emissions of the highly reactive VOCs from production are as large as the carbon monoxide emissions.

The isolation of nucleic acids from woody tissue using dimethyl sulfoxide

1972 ◽  
Vol 50 (5) ◽  
pp. 1085-1090 ◽  
Author(s):  
L. V. Gusta ◽  
V. C. Runeckles
Keyword(s):  
Nucleic Acids ◽  
Experimental Evidence ◽  
Dimethyl Sulfoxide ◽  
Ribonuclease Activity ◽  
Woody Tissue ◽  
Bark Tissue ◽  
High Concentrations ◽  
High Degree

A procedure is described for the isolation of nucleic acids from apple bark tissue using dimethyl sulfoxide. Nucleic acids isolated by this method are high in yield, and exhibit a high degree of purity as evidenced by their spectra. Experimental evidence is given to show that extraction of the tissue with dimethyl sulfoxide before the extraction of nucleic acids removes protein and pigments. Little or no ribonuclease activity could be detected in apple bark tissue after extraction with dimethyl sulfoxide. Ribonuclease activity was shown to be strongly inhibited by high concentrations of dimethyl sulfoxide.

2. On certain Vegetable Organisms found in Coal from Fordel.

1857 ◽  
Vol 3 ◽  
pp. 218-219
Author(s):  
Balfour
Keyword(s):  
Woody Tissue ◽  
External Appearance ◽  
Main Substance

The author stated that the coal to which he called attention was found at Fordel collieries, near Inverkeithing, Fife, and that he was indebted for specimens of it to Mr Robert Daw, comptroller of customs at Leith. It is a splint coal, and exhibits numerous vegetable impressions, particularly of Sigillaria and Stigmaria. These plants appear, indeed, the author thought, to have formed the main substance of the coal, as shown not only by its external appearance, but also by its microscopical structure. Cellular and woody tissue have long been recognised in coal; but from what is now seen in the Fordel and other varieties, it would appear that scalariform and dotted tissue are often present, and, moreover, that in some instances peculiar dotted vessels have been mistaken for true punctated woody tissue.

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