Preliminary investigation of the use of indirect immunofluorescence to detect conidia of Brunchorstiapinea

1989 ◽  
Vol 19 (3) ◽  
pp. 389-392 ◽  
Author(s):  
Carol L. Nelson ◽  
John D. Castello ◽  
Paul D. Manion
Keyword(s):  
New York ◽  
Indirect Immunofluorescence ◽  
Preliminary Investigation ◽  
New York State ◽  
Protein A ◽  
Fluorescein Isothiocyanate ◽  
Cross Reactivity ◽  
Staining Procedure ◽  
Spore Trap ◽  
Indirect Immunofluorescence Staining

An indirect immunofluorescence staining procedure was developed for detection of Brunchorstiapinea conidia, using antiserum to conidia and a commercially prepared fluorescein isothiocyanate protein A conjugate. The procedure detected B. pinea conidia from culture, pycnidia, and spore-trap collections. Although cross reactivity occurred with spores of Fusarium spp., Sirococcus sp., Phialophora sp., Gliocladium sp., Verticillium sp., and Gelatinosporium sp., these spores were easily distinguished from those of B. pinea by size, shape, septation, and degree of fluorescence. Fluorescent B. pinea like conidia were collected in spore traps located within and outside the New York State quarantine region. However, the identity of B. pinea like conidia could not be corroborated by other methods.

scholarly journals Localization of phycoerythrin at the lumenal surface of the thylakoid membrane in Rhodomonas lens.

1989 ◽  
Vol 108 (3) ◽  
pp. 875-884 ◽  
Author(s):  
M Ludwig ◽  
S P Gibbs
Keyword(s):  
New York ◽  
Thylakoid Membrane ◽  
Close Association ◽  
New York State ◽  
Protein A ◽  
York State Department ◽  
Gold Particles ◽  
Whole Cells ◽  
Dense Substance

The thylakoids of cryptomonads are unique in that their lumens are filled with an electron-dense substance postulated to be phycobiliprotein. In this study, we used an antiserum against phycoerythrin (PE) 545 of Rhodomonas lens (gift of R. MacColl, New York State Department of Health, Albany, NY) and protein A-gold immunoelectron microscopy to localize this light-harvesting protein in cryptomonad cells. In sections of whole cells of R. lens labeled with anti-PE 545, the gold particles were not uniformly distributed over the dense thylakoid lumens as expected, but instead were preferentially localized either over or adjacent to the thylakoid membranes. A similar pattern of labeling was observed in cell sections labeled with two different antisera against PE 566 from Cryptomonas ovata. To determine whether PE is localized on the outer or inner side of the membrane, chloroplast fragments were isolated from cells fixed in dilute glutaraldehyde and labeled in vitro with anti-PE 545 followed by protein A-small gold. These thylakoid preparations were then fixed in glutaraldehyde followed by osmium tetroxide, embedded in Spurr, and sections were labeled with anti-PE 545 followed by protein A-large gold. Small gold particles were found only at the broken edges of the thylakoids, associated with the dense material on the lumenal surface of the membrane, whereas large gold particles were distributed along the entire length of the thylakoid membrane. We conclude that PE is located inside the thylakoids of R. lens in close association with the lumenal surface of the thylakoid membrane.

Cultural Competence Needed to Distinguish Disorder from Difference: Beyond Kumbaya

2015 ◽  
Vol 22 (2) ◽  
pp. 64-76 ◽  
Author(s):  
Catherine J. Crowley ◽  
Kristin Guest ◽  
Kenay Sudler
Keyword(s):  
New York ◽  
New York City ◽  
Public Schools ◽  
Cultural Competence ◽  
York City ◽  
Cultural Sensitivity ◽  
Graduate Program ◽  
Language Disorder ◽  
New York State ◽  
Deep Understanding

What does it mean to have true cultural competence as an speech-language pathologist (SLP)? In some areas of practice it may be enough to develop a perspective that values the expectations and identity of our clients and see them as partners in the therapeutic process. But when clinicians are asked to distinguish a language difference from a language disorder, cultural sensitivity is not enough. Rather, in these cases, cultural competence requires knowledge and skills in gathering data about a student's cultural and linguistic background and analyzing the student's language samples from that perspective. This article describes one American Speech-Language-Hearing Association (ASHA)-accredited graduate program in speech-language pathology and its approach to putting students on the path to becoming culturally competent SLPs, including challenges faced along the way. At Teachers College, Columbia University (TC) the program infuses knowledge of bilingualism and multiculturalism throughout the curriculum and offers bilingual students the opportunity to receive New York State certification as bilingual clinicians. Graduate students must demonstrate a deep understanding of the grammar of Standard American English and other varieties of English particularly those spoken in and around New York City. Two recent graduates of this graduate program contribute their perspectives on continuing to develop cultural competence while working with diverse students in New York City public schools.

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