Výsledky vyhledávání - "Saleela Philip-Hollingsworth"

Structural requirements of Rhizobium chitolipooligosaccharides for uptake and bioactivity in legume roots as revealed by synthetic analogs and fluorescent probes

Autor: RawIe I. Hollingsworth, Frank B. Dazzo, Saleela Philip-Hollingsworth

Publikováno v: Journal of Lipid Research, Vol 38, Iss 6, Pp 1229-1241 (1997)

Rhizobium chitolipooligosaccharides (CLOSs) are heterogeneous fatty acylated N-acetyl glucosamine oligomers with variations in both the polar (hydrophilic) oligosaccharide head group and the non-polar (hydrophobic) fatty acyl chain. They trigger root

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b53b433c00742af2f3158b9b67541b4
https://doi.org/10.1016/s0022-2275(20)37204-7

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Glycoconjugate and lipid components ofRhizobium'hedysari' IS123, a root-nodule symbiont of the stress-tolerant legumeHedysarum coronarium

Autor: Guy G. Orgambide, Andrea Squartini, Marco Nuti, Saleela Philip-Hollingsworth, E. Tola, Robert A. Cedergren, Frank B. Dazzo, Rawle I. Hollingsworth

Publikováno v: Canadian Journal of Microbiology. 42:340-345

We have examined the diversity of glycoconjugates and cellular lipids of Rhizobium "hedysari" IS123, a bacterial symbiont that specifically nodulates the drought-tolerant forage legume Hedysarum coronarium. IS123 develops a complete capsule consistin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2f08f3e613ff2858d5efffa6040589cd
https://doi.org/10.1139/m96-050

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Direct in siut identification of cellulose microfibrils associated with Rhizobium leguminosarum biovar trifolii attached to the root epidermis of white clover

Autor: Pedro F. Mateos, Frank B. Dazzo, Andrea Squartini, David L. Baker, Marco P. Nuti, Saleela Philip-Hollingsworth, Angelo D. B. Paruffo

Publikováno v: Canadian Journal of Microbiology. 41:202-207

Firm attachment of Rhizobium species to the legume root epidermis involves the elaboration of extracellular microfibrils extending from the bacteria and contacting the root surface at multiple sites. We investigated the nature of these extracellular

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a19f874399c65738bbe40e6431e18ddc
https://doi.org/10.1139/m95-028

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Flavone-enhanced accumulation and symbiosis-related biological activity of a diglycosyl diacylglycerol membrane glycolipid from Rhizobium leguminosarum biovar trifolii

Autor: R I Hollingsworth, Frank B. Dazzo, Guy G. Orgambide, Saleela Philip-Hollingsworth

Publikováno v: Journal of Bacteriology. 176:4338-4347

Rhizobium leguminosarum bv. trifolii is the bacterial symbiont which induces nitrogen-fixing root nodules on the leguminous host, white clover (Trifolium repens L.). In this plant-microbe interaction, the host plant excretes a flavone, 4',7-dihydroxy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4a581b2cba64d380996019afb4432b7
https://doi.org/10.1128/jb.176.14.4338-4347.1994

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N-Acetylglutamic acid: an extracellular nod signal of Rhizobium trifolii ANU843 that induces root hair branching and nodule-like primordia in white clover roots

Autor: Rawle I. Hollingsworth, Saleela Philip-Hollingsworth, Frank B. Dazzo

Publikováno v: Journal of Biological Chemistry. 266:16854-16858

An extracellular metabolite purified from Rhizobium trifolii ANU843 was established as N-acetylglutamic acid (GluNAc) by 1H NMR and Fourier transform IR spectroscopy, gas chromatography/mass spectrometry of its methylated product, and organic synthes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a48db22fb78af7d915bb0c378e9e507d
https://doi.org/10.1016/s0021-9258(18)55380-1

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Structural Requirements for Uptake and Bioactivity of Rhizobium Chitolipooligosaccharides in Legume Roots as Revealed by Synthetic Analogs and Fluorescent Probes

Autor: Frank B. Dazzo, Saleela Philip-Hollingsworth, R I Hollingsworth

Publikováno v: Biological Nitrogen Fixation for the 21st Century ISBN: 9789401061698

We study the structure / function relationships of chitolipooligosaccharides (CLOSs) made by authentic wild type R. leguminosarum bv. trifolii ANU843 and their role in symbiotic development with white clover. Previously, we found that ANU843 accumula

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e5dc78360def5fac075fe9f16ec1d319
https://doi.org/10.1007/978-94-011-5159-7_121

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Modulation of development, growth dynamics, wall crystallinity, and infection sites in white clover root hairs by membrane chitolipooligosaccharides from Rhizobium leguminosarum biovar trifolii

Autor: Saleela Philip-Hollingsworth, Guy G. Orgambide, Kenneth O. Ninke, Janet Salzwedel, Rawle I. Hollingsworth, Frank B. Dazzo

Publikováno v: Journal of bacteriology. 178(12)

We used bright-field, time-lapse video, cross-polarized, phase-contrast, and fluorescence microscopies to examine the influence of isolated chitolipooligosaccharides (CLOSs) from wild-type Rhizobium leguminosarum bv. trifolii on development of white

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4c70db0bc74fecf2b3e5e5f634c970f
https://pubmed.ncbi.nlm.nih.gov/8655563

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Subnanomolar concentrations of membrane chitolipooligosaccharides from Rhizobium leguminosarum biovar trifolii are fully capable of eliciting symbiosis-related responses on white clover

Autor: Rawle I. Hollingsworth, Guy G. Orgambide, Saleela Philip-Hollingsworth, Pedro F. Mateos, Frank B. Dazzo

Publikováno v: Current Issues in Symbiotic Nitrogen Fixation ISBN: 9789401064040

Axenic seedling bioassays were performed on white clover, vetch, and alfalfa to assess the variety and dose responses of biological activities exhibited by membrane chitolipooligosaccharides (CLOSs) from wild type Rhizobium leguminosarum bv. trifolii

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d2db39de68ac9df1d5a411dd2ac3f8e0
https://doi.org/10.1007/978-94-011-5700-1_13

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Mutation or increased copy number of nodE has no effect on the spectrum of chitolipooligosaccharide nod factors made by Rhizobium leguminosarum bv. trifolii

Autor: Rawle I. Hollingsworth, Guy G. Orgambide, Saleela Philip-Hollingsworth, James J Bradford, Damon K. Smith, Frank B. Dazzo

Publikováno v: The Journal of biological chemistry. 270(36)

The bacterial gene nodE is the key determinant of host specificity in the Rhizobium leguminosarum-legume symbiosis and has been proposed to determined unique polyunsaturated fatty acyl moieties in chitolipooligosaccharides (CLOS) made by the bacteria

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8265857fd7ed4a19f0325d9aac325808
https://pubmed.ncbi.nlm.nih.gov/7673121

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