User profiles for Noha H. Youssef

Noha Youssef

Oklahoma State University
Verified email at okstate.edu
Cited by 10511

Comparison of methods to detect biosurfactant production by diverse microorganisms

NH Youssef, KE Duncan, DP Nagle, KN Savage… - Journal of …, 2004 - Elsevier
Three methods to detect biosurfactant production, drop collapse, oil spreading, and blood
agar lysis, were compared for their ease of use and reliability in relation to the ability of the …

Where less may be more: how the rare biosphere pulls ecosystems strings

…, JF Salles, MGA Van Der Heijden, NH Youssef… - The ISME …, 2017 - academic.oup.com
Rare species are increasingly recognized as crucial, yet vulnerable components of Earth’s
ecosystems. This is also true for microbial communities, which are typically composed of a …

Phylogenetic diversity and community structure of anaerobic gut fungi (phylum Neocallimastigomycota) in ruminant and non-ruminant herbivores

AS Liggenstoffer, NH Youssef, MB Couger… - The ISME …, 2010 - academic.oup.com
The phylogenetic diversity and community structure of members of the gut anaerobic fungi (AF)
(phylum Neocallimastigomycota) were investigated in 30 different herbivore species that …

The genome of the anaerobic fungus Orpinomyces sp. strain C1A reveals the unique evolutionary history of a remarkable plant biomass degrader

NH Youssef, MB Couger… - Applied and …, 2013 - Am Soc Microbiol
Anaerobic gut fungi represent a distinct early-branching fungal phylum (Neocallimastigomycota)
and reside in the rumen, hindgut, and feces of ruminant and nonruminant herbivores. …

Novelty and uniqueness patterns of rare members of the soil biosphere

MS Elshahed, NH Youssef, AM Spain… - Applied and …, 2008 - Am Soc Microbiol
Soil bacterial communities typically exhibit a distribution pattern in which most bacterial
species are present in low abundance. Due to the relatively small size of most culture-…

Rhamnolipid biosurfactant mixtures for environmental remediation

TT Nguyen, NH Youssef, MJ McInerney, DA Sabatini - Water research, 2008 - Elsevier
This study investigated the efficiency of rhamnolipid biosurfactant and synthetic surfactant
mixtures for improving the interfacial activity of the surfactant system against several light non-…

Phylogenetic and Metabolic Diversity of Planctomycetes from Anaerobic, Sulfide- and Sulfur-Rich Zodletone Spring, Oklahoma

MS Elshahed, NH Youssef, Q Luo… - Applied and …, 2007 - Am Soc Microbiol
We investigated the phylogenetic diversity and metabolic capabilities of members of the
phylum Planctomycetes in the anaerobic, sulfide-saturated sediments of a mesophilic spring (…

Genomic characterization of three novel Desulfobacterota classes expand the metabolic and phylogenetic diversity of the phylum

…, P Walters, MS Elshahed, NH Youssef - Environmental …, 2021 - Wiley Online Library
We report on the genomic characterization of three novel classes in the phylum Desulfobacterota.
One class (proposed name Candidatus ‘Anaeroferrophillalia’) was characterized by …

Importance of 3-hydroxy fatty acid composition of lipopeptides for biosurfactant activity

NH Youssef, KE Duncan… - Applied and …, 2005 - Am Soc Microbiol
Biosurfactant production may be an economic approach to improving oil recovery. To obtain
candidates most suitable for oil recovery, 207 strains, mostly belonging to the genus Bacillus…

Diversity rankings among bacterial lineages in soil

NH Youssef, MS Elshahed - The ISME journal, 2009 - academic.oup.com
We used rarefaction curve analysis and diversity ordering-based approaches to rank the 11
most frequently encountered bacterial lineages in soil according to diversity in 5 previously …