GENERIC CORRELATIONS AND CONCEPTS: BROOMELLA AND PESTALOTIA

1963 ◽  
Vol 41 (8) ◽  
pp. 1235-1243 ◽  
Author(s):  
R. A. Shoemaker ◽  
Emil Müller
Keyword(s):  
Close Association ◽  
Fruit Body ◽  
Additional Species ◽  
Apical Seta ◽  
Southern France ◽  
Generic Type ◽  
Body Form ◽  
Conidial State ◽  
Clematis Vitalba ◽  
Simple Seta

The type and three additional species of Broomella from Clematis were treated as congeneric because of similar ascocarp structure, and because of the nature of the unitunicate asci, which, in all species, have a pulvillus (a subapical chitinoid body, "le coussinet chitinoïde"), but lack an iodine-reactive ring. Moreover, all the species have distinctive ascospores that are triseptate, pigmented only in the central cells, and furnished with one simple seta at each end. The conidia, like the ascospores, are four-celled with pigment only in the two central cells, but variously setose at the ends, and are produced on annellophores. Although two species have conidia with a single apical seta typical of Monochaetia, and two have multiple or branched setae typical of Pestalotia, the former generic dispositions of the conidial states made on numbers of setae and on fruit-body form were rejected and the conidial states united under one generic name, Pestalotia.Broomella vitalbae (Berk. & Broome) Sacc., the generic type, collected on Clematis vitalba L. in southern France, produced conidia with one simple seta at each end, and non-germinable microconidia (spermatia) when cultured. The conidial state is named Pestalotia vitalbae n. sp. North American collections of Broomella montaniensis (Ell. & Ev.) E. Müller & Ahmad on Clematis ligusticifolia Nutt. consistently bore the associated conidial state first described as Arthrobotryum pestalozzioides Dearness & Fairman in Fairman with which Pestalotia berberidis Guba was found to be conspecific. Pestalotia pestalozzioides (Dearness & Fairman in Fairman) n. comb. is proposed for the conidial state. Broomella excelsa collected in Pakistan on Clematis sp. and described as new was found in close association with the conidial state Ahmadinula excelsa Petrak for which Pestalotia excelsa (Petrak) n. comb. is proposed. Broomella acuta on Clematis flammula L. from southern France is described as new. Cultures from its ascospores and from conidia of Pestalotia truncata Lév. found on the same gathering, produced identical conidia, and, in addition, formed microconidia similar to those of Broomella vitalbae.

Basidiocarp development in Gloeophyllum (Lenzites) saepiarium in the natural environment

1972 ◽  
Vol 50 (5) ◽  
pp. 1017-1024 ◽  
Author(s):  
Jack States
Keyword(s):  
Natural Environment ◽  
Direct Contact ◽  
Close Association ◽  
Fruit Body ◽  
Growing Season ◽  
Atmospheric Humidity ◽  
Long Period ◽  
Xeric Habitat ◽  
Growth Zones

Basidiocarp development in Gloeophyllum saepiarium begins with the emergence of vegetative hyphae from the wood, their exposure to the relatively severe, fluctuating conditions of light and moisture, and their loss of direct contact with the substratum. In response to these changes the hyphae become organized into hyphal strands composed of generative hyphae and skeletal hyphae. Hyphal strands direct the growth of the advancing margin and are involved in the development of tomentum, context, and hymenophore. Their marked sensitivity to light and humidity accounts for the presence of growth zones in the basidiocarp. Atmospheric humidity is considered to be the factor of primary importance in influencing the growth, differentiation, and orientation of the hyphae in the perennial basidiocarp during the growing season. The close association of skeletal and generative hyphae allows the fruit body to withstand the extended dry periods characteristic of its xeric habitat, and to develop over a long period of time.

Immunocytochemical Localization of Amyloid Protein AA in the “Dense Fibrillar Inclusions” of the Reticuloendothelical Cells

1977 ◽  
Vol 35 ◽  
pp. 438-439
Author(s):  
T. Shirahama ◽  
M. Skinner ◽  
A.S. Cohen
Keyword(s):  
Amyloid Fibril ◽  
Close Association ◽  
Gel Filtration ◽  
Fibril Formation ◽  
Amyloid Protein ◽  
Electron Microscopic ◽  
Amyloid Deposits ◽  
Amyloid Fibril Formation ◽  
Electron Microscopic Technique ◽  
Lysosomal System

A1thought the mechanisms of amyloidogenesis have not been entirely clarified, proteolysis of the parent proteins may be one of the important steps in the amyloid fibril formation. Recently, we reported that "dense fibrillar inclusions" (DFI), which had the characteristics of lysosomes and contained organized fibrillar profiles as well, were observed in the reticuloendothelial cells in close association with the foci of new amyloid deposits. We considered the findings as evidence for the involvement of lysosomal system in amyloid fibril formation (l). In the present study, we attempted to determine the identity of the contents of the DFI by the use of antisera against the amyloid protein (AA) and an immuno-electron microscopic technique.Amyloidosis was induced in CBA/J mice by daily injections of casein (l). AA was isolated from amyloid-laden spleens by gel filtration and antibody to it was produced in rabbits (2). For immunocytochemistry, the unlabeled antibody enzyme method (3) was employed.

Linear Arrays of Helical Polyribosomes in Cells Exposed to Antitumor Drug Vincristine Sulfate

1969 ◽  
Vol 27 ◽  
pp. 358-359
Author(s):  
Awtar Krishan
Keyword(s):  
Close Association ◽  
Annulate Lamellae ◽  
Large Array ◽  
Vincristine Sulfate ◽  
Linear Arrays ◽  
Golgi Membranes ◽  
Related Drug ◽  
Drug Leads ◽  
Lethal Doses ◽  
Vinblastine Sulfate

Earle's L-929 fibroblasts treated with mitosis-arresting but sub-lethal doses of vinblastine sulfate (VLB) show hypertrophy of the granular endoplasmic reticulum and annulate lamellae. Exposure of the cells to heavier doses of vincristine sulfate (VCR), a VLB-related drug, leads to the accumulation of large amounts of helical polyribosomes, Golgi membranes and crystals in the cytoplasm. In many of these cells a large number of helical polyribosomes are arranged in prominent linear rows, some of which may be up to 5 micrometers in length. Figure 1 shows a large array of helical polyribosomes near a crystalline mass (CRS) in an Earle's L-929 fibroblast exposed to VCR (5ϒ/ml.) for 3 hours At a higher magnification, as seen in figure 2, the helical polyribosomes are seen arranged in parallel rows. In favorably cut sections, a prominent backbone like "stalk" of finely granular material, measuring approximately 300Å in width is seen in close association with the linear rows of helical polyribosomes.

SEM analysis of fish scale cross sections: A technique study

1992 ◽  
Vol 50 (1) ◽  
pp. 744-745
Author(s):  
M.E. Lee ◽  
A. Moller ◽  
P.S.O. Fouche ◽  
I.G Gaigher
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Cross Sections ◽  
Soft Tissues ◽  
Close Association ◽  
Sem Analysis ◽  
Fish Scale ◽  
Fish Scales ◽  
Micro Structures ◽  
Scanning Electron

Scanning electron microscopy of fish scales has facilitated the application of micro-structures to systematics. Electron microscopy studies have added more information on the structure of the scale and the associated cells, many problems still remain unsolved, because of our incomplete knowledge of the process of calcification. One of the main purposes of these studies has been to study the histology, histochemistry, and ultrastructure of both calcified and decalcified scales, and associated cells, and to obtain more information on the mechanism of calcification in the scales. The study of a calcified scale with the electron microscope is complicated by the difficulty in sectioning this material because of the close association of very hard tissue with very soft tissues. Sections often shatter and blemishes are difficult to avoid. Therefore the aim of this study is firstly to develop techniques for the preparation of cross sections of fish scales for scanning electron microscopy and secondly the application of these techniques for the determination of the structures and calcification of fish scales.

PASTURE ESTABLISHMENT ON EAST COAST NORTH ISLAND HILL COUNTRY

1984 ◽  
pp. 216-218
Author(s):  
B.J. Arnst ◽  
O.L. Park
Keyword(s):  
White Clover ◽  
Carrying Capacity ◽  
Return On Investment ◽  
East Coast ◽  
Close Association ◽  
Development Programme ◽  
Low Fertility ◽  
Stock Management ◽  
Hill Country

Large areas of North Island hill country are producing below potential as a result of low fertility and poor pasture composition. Removal of undesirable species and replacement with a higher producing pasture is essential for increased productivity but is difficult to achieve. A development programme is described where the use of glyphosate in close association with oversowing and stock management has allowed rapid pasture establishment, marked increase in carrying capacity and a quick return on investment. Keywords: Pasture establishment, glyphosate, oversowing, white clover, subdivision, productivity.

Korea's Confucian Culture of Learning as a Gateway to Christianity: Protestant Missions in the Late Nineteenth and Early Twentieth Centuries

2016 ◽  
Vol 22 (1) ◽  
pp. 37-56
Author(s):  
K. Kale Yu
Keyword(s):  
Close Association ◽  
Cultural Value ◽  
Late Nineteenth Century ◽  
Confucian Culture ◽  
Korean Society ◽  
Culture Of Learning ◽  
The Bible ◽  
Christian Literature ◽  
Late Nineteenth ◽  
Protestant Missions

As Protestant missionaries landed on Korean shores in the late nineteenth century, a great deal of effort went into creating a Christian identity using literacy and literature as cornerstones of missional strategy that would become the benchmark of the Christian experience for Koreans. The relationship between the Protestant missions' emphasis on reading and Korea's Confucian culture of learning is of particular importance for an understanding of the growth of Christianity in Korea because Christianity's close association with literacy and sacred writings energised the Confucian imagination of Korean culture. Perceiving the reading of Christian literature, including the bible, as a salient way to salvation, Koreans turned to reading and memorising the scriptures to experience the manifestation of God's revelation. The high respect afforded to education and learning as a dominant cultural value constitutes an important, if overlooked, element in the replication of faith in Korean society that reproduced the gospel under their own familiar terms.

Tire Treadwear — A Comprehensive Evaluation of the Factors: Generic Type, Aspect Ratio, Tread Pattern, and Tread Composition Part III: Results of Supplementary and UTQG Treadwear Test Series

1986 ◽  
Vol 14 (4) ◽  
pp. 235-263
Author(s):  
A. G. Veith
Keyword(s):  
Carbon Black ◽  
Comprehensive Evaluation ◽  
Work Intensity ◽  
Generic Type ◽  
Aspect Ratios ◽  
Index Variation ◽  
Primary Determinant ◽  
Severity Levels ◽  
High Test ◽  
Better Than

Abstract The effect of tread compound variation on tire treadwear was studied using bias and radial tires of two aspect ratios. Compound variations included types of rubber and carbon black as well as the levels of carbon black, process oil, and curatives. At low to moderate test severity, SBR and an SBR/BR blend performed better than NR while at high test severity NR and SBR were better than the SBR/BR blend. The SBR/BR blend was the best at low severity testing. Higher structure and higher surface area carbon black gave improved treadwear at all severity levels. The concept of a “frictional work intensity” as the primary determinant of treadwear index variation with test severity is proposed. Some factors which influence frictional work intensity are discussed.

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