Fungi associated with root diseases of aspen in Wyoming

1976 ◽  
Vol 54 (8) ◽  
pp. 734-744 ◽  
Author(s):  
William D. Ross
Keyword(s):  
Pleurotus Ostreatus ◽  
Severe Damage ◽  
Ganoderma Applanatum ◽  
Root Diseases ◽  
Cytospora Chrysosperma ◽  
Decay Potential ◽  
Pholiota Squarrosa ◽  
Armillariella Mellea ◽  
Chemical Evidence

Ganoderma applanatum (Pers. ex Wallr.) Pat., a Phialophora sp., and possibly Coprinus atramentarius (Bull. ex. Fr.) Fr. showed a potential for causing locally severe damage to aspen in Wyoming. Cytospora chrysosperma Pers. ex Fr., Pholiota squarrosa (Pers. ex Fr.) Quel., an Ascocoryne sp., Pleurotus ostreatus (Jacq. ex Fr.) Kummer, Armillariella mellea (Vahl. ex Fr.), and a Libertella sp. all were associated with root diseases. Phellinus tremulae Bond. et Boris was not found in roots. Chemical evidence for the decay potential is given for six of the most frequently isolated fungi.

FT-IR microspectroscopic analysis of diseased white matter brain tissues

1995 ◽  
Vol 53 ◽  
pp. 968-969
Author(s):  
Steven M. Le Vine ◽  
David L. Wetzel
Keyword(s):  
White Matter ◽  
Gray Matter ◽  
Twitcher Mouse ◽  
Grid Pattern ◽  
Marked Contrast ◽  
Spatially Resolved ◽  
Ft Ir ◽  
Ir Microspectroscopy ◽  
Chemical Evidence

In situ FT-IR microspectroscopy has allowed spatially resolved interrogation of different parts of brain tissue. In previous work the spectrrscopic features of normal barin tissue were characterized. The white matter, gray matter and basal ganglia were mapped from appropriate peak area measurements from spectra obtained in a grid pattern. Bands prevalent in white matter were mostly associated with the lipid. These included 2927 and 1469 cm-1 due to CH2 as well as carbonyl at 1740 cm-1. Also 1235 and 1085 cm-1 due to phospholipid and galactocerebroside, respectively (Figs 1and2). Localized chemical changes in the white matter as a result of white matter diseases have been studied. This involved the documentation of localized chemical evidence of demyelination in shiverer mice in which the spectra of white matter lacked the marked contrast between it and gray matter exhibited in the white matter of normal mice (Fig. 3).The twitcher mouse, a model of Krabbe’s desease, was also studied. The purpose in this case was to look for a localized build-up of psychosine in the white matter caused by deficiencies in the enzyme responsible for its breakdown under normal conditions.

Ultrastructure of the lesion induced by toxin T-514 isolated from K. humboldtiana in the alveolar region of the lung

1992 ◽  
Vol 50 (1) ◽  
pp. 640-641
Author(s):  
Julio Sepúlveda-Saavedra ◽  
Beatriz González-Corona ◽  
Víctor A. Tamez Rodríguez ◽  
Ma. Victoria Bermúdez de Rocha ◽  
Alfredo Piñeyro López
Keyword(s):  
Electron Microscope ◽  
Guinea Pig ◽  
Macaca Fascicularis ◽  
Osmium Tetroxide ◽  
Lead Citrate ◽  
Severe Damage ◽  
Thin Sections ◽  
Alveolar Region ◽  
Histopathological Findings

It has been shown in previous studies that the toxin T-514 isolated from K. humboldtiana induces severe damage to the lung in treated rodents. Histopathological findings include edema, and alveolar hemorrage. However, the ultraestructure of the lesion has not been investigated. In this study we used two species of rodents: Hamster and guinea pig, and a primate: Macaca fascicularis. Animals received different single dosis of the toxin via intraperitoneal. Control animals received only the vehicle (propylen glycol). Inmediately after spontaneous death, lung samples were fixed in Karnovsky-Ito fixative, post fixed in osmium tetroxide and embedded in epon. Thin sections were prepared with an Ultratome V LKB, stained with uranly acetate and lead citrate, and studied in an electron microscope Zeiss-EM109.

Fusion and Fission Processes in Exocytosis: Possible Roles for Synexin and Osmotic Lysis in the Two Events

1980 ◽  
Vol 38 ◽  
pp. 594-597
Author(s):  
H.B. Pollard ◽  
C.E. Creutz ◽  
C.J. Pazoles ◽  
J.H. Scott
Keyword(s):  
Small Molecules ◽  
Chromaffin Cells ◽  
Adrenal Glands ◽  
General Concept ◽  
Extracellular Calcium ◽  
Large Protein ◽  
Granule Membrane ◽  
Osmotic Lysis ◽  
Per Se ◽  
Chemical Evidence

Exocytosis is a general concept describing secretion of enzymes, hormones and transmitters that are otherwise sequestered in intracellular granules. Chemical evidence for this concept was first gathered from studies on chromaffin cells in perfused adrenal glands, in which it was found that granule contents, including both large protein and small molecules such as adrenaline and ATP, were released together while the granule membrane was retained in the cell. A number of exhaustive reviews of this early work have been published and are summarized in Reference 1. The critical experiments demonstrating the importance of extracellular calcium for exocytosis per se were also first performed in this system (2,3), further indicating the substantial service given by chromaffin cells to those interested in secretory phenomena over the years.

Пищевая, лечебная и экологическая ценность грибов Pleurotus ostreatus

2010 ◽  
Vol 18 (1) ◽  
pp. 3-9
Author(s):  
O. M. Alekseenko ◽  
T. M. Polishko ◽  
A. I. Vinnikov
Keyword(s):  
Pleurotus Ostreatus

Проанализированы данные литературы, характеризующие пищевые, лечебные и экологические свойства гриба Рleurotus ostreatus (вешенка обыкновенная). Вешенка – полноценный продукт питания, обеспечивающий потребность организма человека в белках, углеводах, жирах, витаминах и минеральных солях. В белках плодовых тел вешенки содержится 18 аминокислот, восемь из которых незаменимые (изолейцин, лейцин, лизин, метионин, фенилаланин, триптофан, треонин, валин). Лечебная ценность грибов характеризуется содержанием водорастворимых (тиамин В1, рибофлавин В2, ниацин В5, РР, пиридоксин В6, биотин В7, аскорбиновая и пантотеновая кислота) и жирорастворимых (кальциферол, эргостерол, токоферол) витаминов. Отмечена возможность значительного повышения эффективности использования отходов сельского хозяйства за счет получения плодовых тел, а также последующего применения субстрата после плодоношения в растениеводстве и животноводстве. 

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