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Author Jayanthi Gangiredla

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Draft Genome Sequences of Alternaria Strains Isolated from Grapes and Apples.

Solomon T Gebru, Jayanthi Gangiredla, Vasiliki H Tournas, Carmen Tartera, Mark K Mammel,

Here, we report the draft genome sequences of Alternaria alternata, isolated from seedless grapes, and Alternaria arborescens and Alternaria atra, isolated from Red Delicious apples, all from the Washington, DC, area. ... Read more >>

Microbiol Resour Announc (Microbiology resource announcements)
[2020, 9(14):]

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The Secretion of Toxins and Other Exoproteins of Cronobacter: Role in Virulence, Adaption, and Persistence.

Hyein Jang, Gopal R Gopinath, Athmanya Eshwar, Shabarinath Srikumar, Scott Nguyen, Jayanthi Gangiredla, Isha R Patel, Samantha B Finkelstein, Flavia Negrete, JungHa Woo, YouYoung Lee, Séamus Fanning, Roger Stephan, Ben D Tall, Angelika Lehner,

: Cronobacter species are considered an opportunistic group of foodborne pathogenic bacteria capable of causing both intestinal and systemic human disease. This review describes common virulence themes shared among the seven Cronobacter species and describes multiple exoproteins secreted by Cronobacter, many of which are bacterial toxins that may play a ... Read more >>

Microorganisms (Microorganisms)
[2020, 8(2):]

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Prevalence, Distribution, and Phylogeny of Type Two Toxin-Antitoxin Genes Possessed by Cronobacter Species where C. sakazakii Homologs Follow Sequence Type Lineages.

Samantha Finkelstein, Flavia Negrete, Hyein Jang, Jayanthi Gangiredla, Mark Mammel, Isha R Patel, Hannah R Chase, JungHa Woo, YouYoung Lee, Caroline Z Wang, Leah Weinstein, Ben D Tall, Gopal R Gopinath,

Cronobacter species are a group of foodborne pathogenic bacteria that cause both intestinal and systemic human disease in individuals of all age groups. Little is known about the mechanisms that Cronobacter employ to survive and persist in foods and other environments. Toxin-antitoxin (TA) genes are thought to play a role ... Read more >>

Microorganisms (Microorganisms)
[2019, 7(11):]

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Interlaboratory Evaluation of the U.S. Food and Drug Administration Escherichia coli Identification Microarray for Profiling Shiga Toxin-Producing Escherichia coli.

Isha R Patel, Jayanthi Gangiredla, David W Lacher, Mark K Mammel, Lori Bagi, Gian Marco Baranzoni, Pina M Fratamico, Elizabeth L Roberts, Chitrita DebROY, Rebecca L Lindsey, Devon V Stoneburg, Haley Martin, Peyton Smith, Nancy A Strockbine, Christopher A Elkins, Flemming Scheutz, Peter C H Feng,

The U.S. Food and Drug Administration Escherichia coli Identification (FDA-ECID) microarray provides rapid molecular characterization of E. coli. The effectiveness of the FDA-ECID for characterizing Shiga toxin-producing E. coli (STEC) was evaluated by three federal laboratories and one reference laboratory with a panel of 54 reference E. coli strains from ... Read more >>

J. Food Prot. (Journal of food protection)
[2018, 81(8):1275-1282]

Cited: 1 time

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Draft Genome Sequences of 12 Isolates from 3 Fusarium Species Recovered from Moldy Peanuts.

Solomon T Gebru, Mark K Mammel, Jayanthi Gangiredla, Vasiliki H Tournas, Keith A Lampel, Carmen Tartera,

In this report, we announce the sequences of six genomes of Fusarium proliferatum (isolates MOD1-FUNGI8, -12, -13, -14, -15, and -19), four genomes of Fusarium oxysporum (MOD1-FUNGI9, -10, -11, and -16), and two genomes of the Fusarium incarnatum-Fusarium equiseti species complex (MOD1-FUNGI17 and MOD1-FUNGI18) isolated from moldy peanuts from the ... Read more >>

Microbiol Resour Announc (Microbiology resource announcements)
[2019, 8(15):]

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DNA Microarray-Based Genomic Characterization of the Pathotypes of Escherichia coli O26, O45, O103, O111, and O145 Isolated from Feces of Feedlot Cattle †.

Pragathi B Shridhar, Isha R Patel, Jayanthi Gangiredla, Lance W Noll, Xiaorong Shi, Jianfa Bai, T G Nagaraja,

Shiga toxin-producing Escherichia coli (STEC) serogroups O26, O45, O103, O111, O121, and O145, referred to as the top six non-O157 serogroups, are responsible for more than 70% of human non-O157 STEC infections in North America. Cattle harbor non-O157 strains in the hindgut and shed them in the feces. The objective ... Read more >>

J. Food Prot. (Journal of food protection)
[2019, 82(3):395-404]

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Draft genomes of Cronobacter sakazakii strains isolated from dried spices bring unique insights into the diversity of plant-associated strains.

Hyein Jang, Jungha Woo, Youyoung Lee, Flavia Negrete, Samantha Finkelstein, Hannah R Chase, Nicole Addy, Laura Ewing, Junia Jean Gilles Beaubrun, Isha Patel, Jayanthi Gangiredla, Athmanya Eshwar, Ziad W Jaradat, Kunho Seo, Srikumar Shabarinath, Séamus Fanning, Roger Stephan, Angelika Lehner, Ben D Tall, Gopal R Gopinath,

Cronobacter sakazakii is a Gram-negative opportunistic pathogen that causes life- threatening infantile infections, such as meningitis, septicemia, and necrotizing enterocolitis, as well as pneumonia, septicemia, and urinary tract and wound infections in adults. Here, we report 26 draft genome sequences of C. sakazakii, which were obtained from dried spices from ... Read more >>

Stand Genomic Sci (Standards in genomic sciences)
[2018, 13:35]

Cited: 2 times

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Draft Genome Sequences of 72 Isolates from All Four Species of Shigella.

Jayanthi Gangiredla, Mark K Mammel, David W Lacher, Carmen Tartera, Scott A Jackson, Isha R Patel, Christopher A Elkins, Amit Mukherjee,

Shigella is a genus of Gram-negative enteric pathogenic bacteria which has four species, Shigella dysenteriae, S. flexneri, S. boydii, and S. sonnei. Shigella species are clinically important bacteria because they cause shigellosis or dysentery. Here we report the genome sequences of 72 Shigella isolates from these four species. ... Read more >>

Microbiol Resour Announc (Microbiology resource announcements)
[2018, 7(21):]

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Draft Genome Sequences of the Escherichia coli Reference (ECOR) Collection.

Isha R Patel, Jayanthi Gangiredla, Mark K Mammel, Keith A Lampel, Christopher A Elkins, David W Lacher,

Here, we report the genomes of all 72 isolates belonging to the Escherichia coli reference (ECOR) collection. Strains in this collection were isolated from diverse hosts and geographic locations and have been used for more than 30 years to represent the phylogenetic diversity of E. coli. ... Read more >>

Microbiol Resour Announc (Microbiology resource announcements)
[2018, 7(14):]

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Draft Genome Sequences of Bifidobacterium Strains Isolated from Dietary Supplements and Cultured Food Products.

Tammy J Barnaba, Jayanthi Gangiredla, Mark K Mammel, David W Lacher, Christopher A Elkins, Keith A Lampel, Chris A Whitehouse, Carmen Tartera,

Here, we present the genome sequences of 23 Bifidobacterium isolates from several commercially available dietary supplements and cultured food products. Strains of this genus are natural inhabitants of the mammalian mouth, gastrointestinal tract, and vagina. Some species are considered beneficial to human health. ... Read more >>

Genome Announc (Genome announcements)
[2018, 6(26):]

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Fifty-Six Draft Genome Sequences of 10 Lactobacillus Species from 22 Commercial Dietary Supplements.

Jayanthi Gangiredla, Tammy J Barnaba, Mark K Mammel, David W Lacher, Christopher A Elkins, Keith A Lampel, Chris A Whitehouse, Carmen Tartera,

Here, we present the genome sequences of 56 isolates of 10 species of the genus Lactobacillus that are considered beneficial components of the gut microbiota. The isolates examined were found in commercially available dietary supplements in the U.S. market. ... Read more >>

Genome Announc (Genome announcements)
[2018, 6(26):]

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Draft Genome Sequences of Escherichia albertii, Escherichia fergusonii, and Strains Belonging to Six Cryptic Lineages of Escherichia spp.

Jayanthi Gangiredla, Mark K Mammel, Tammy J Barnaba, Carmen Tartera, Solomon T Gebru, Isha R Patel, Susan R Leonard, Michael L Kotewicz, Keith A Lampel, Christopher A Elkins, David W Lacher,

We report here the genome sequences of 55 strains belonging to the genus Escherichia from multiple animal and environmental sources. These strains include representatives of Escherichia albertii, Escherichia fergusonii, and six additional genetically distinct lineages of Escherichia spp., one of which is newly discovered and is being reported for the ... Read more >>

Genome Announc (Genome announcements)
[2018, 6(18):]

Cited: 2 times

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DNA microarray-based assessment of virulence potential of Shiga toxin gene-carrying Escherichia coli O104:H7 isolated from feedlot cattle feces.

Pragathi B Shridhar, Isha R Patel, Jayanthi Gangiredla, Lance W Noll, Xiaorong Shi, Jianfa Bai, Christopher A Elkins, Nancy Strockbine, T G Nagaraja,

Escherichia coli O104:H4, a hybrid pathotype reported in a large 2011 foodborne outbreak in Germany, has not been detected in cattle feces. However, cattle harbor and shed in the feces other O104 serotypes, particularly O104:H7, which has been associated with sporadic cases of diarrhea in humans. The objective of our ... Read more >>

PLoS ONE (PloS one)
[2018, 13(4):e0196490]

Cited: 1 time

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Genomic characterization of malonate positive Cronobacter sakazakii serotype O:2, sequence type 64 strains, isolated from clinical, food, and environment samples.

Gopal R Gopinath, Hannah R Chase, Jayanthi Gangiredla, Athmanya Eshwar, Hyein Jang, Isha Patel, Flavia Negrete, Samantha Finkelstein, Eunbi Park, TaeJung Chung, YeonJoo Yoo, JungHa Woo, YouYoung Lee, Jihyeon Park, Hyerim Choi, Seungeun Jeong, Soyoung Jun, Mijeong Kim, Chaeyoon Lee, HyeJin Jeong, Séamus Fanning, Roger Stephan, Carol Iversen, Felix Reich, Günter Klein, Angelika Lehner, Ben D Tall,

Malonate utilization, an important differential trait, well recognized as being possessed by six of the seven Cronobacter species is thought to be largely absent in Cronobacter sakazakii (Csak). The current study provides experimental evidence that confirms the presence of a malonate utilization operon in 24 strains of sequence type (ST) ... Read more >>

Gut Pathog (Gut pathogens)
[2018, 10:11]

Cited: 2 times

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Genetic Analysis of Virulence Potential of Escherichia coli O104 Serotypes Isolated From Cattle Feces Using Whole Genome Sequencing.

Pragathi B Shridhar, Isha R Patel, Jayanthi Gangiredla, Lance W Noll, Xiaorong Shi, Jianfa Bai, Christopher A Elkins, Nancy A Strockbine, T G Nagaraja,

Escherichia coli O104:H4, a Shiga toxin-producing hybrid pathotype that was implicated in a major foodborne outbreak in Germany in 2011, has not been detected in cattle. However, serotypes of O104, other than O104:H4, have been isolated from cattle feces, with O104:H7 being the most predominant. In this study, we investigated, ... Read more >>

Front Microbiol (Frontiers in microbiology)
[2018, 9:341]

Cited: 1 time

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Species-Wide Collection of Escherichia coli Isolates for Examination of Genomic Diversity.

Jayanthi Gangiredla, Mark K Mammel, Tammy J Barnaba, Carmen Tartera, Solomon T Gebru, Isha R Patel, Susan R Leonard, Michael L Kotewicz, Keith A Lampel, Christopher A Elkins, David W Lacher,

Pathogenic and nonpathogenic Escherichia coli strains present a vast genomic diversity. We report the genome sequences of 2,244 E. coli isolates from multiple animal and environmental sources. Their phylogenetic relationships and potential risk to human health were examined. ... Read more >>

Genome Announc (Genome announcements)
[2017, 5(50):]

Cited: 5 times

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Draft Genome Sequences of Escherichia coli O104 Strains of Bovine and Human Origin.

Pragathi B Shridhar, Isha R Patel, Jayanthi Gangiredla, Mark K Mammel, Lance Noll, Xiaorong Shi, Jianfa Bai, Christopher A Elkins, Nancy Strockbine, T G Nagaraja,

Cattle harbor and shed in their feces several Escherichia coli O104 serotypes. All O104 strains examined were intimin negative and belonged to the B1 phylogroup, and some were Shiga toxigenic. We report here the genome sequences of bovine O104:H7 (n = 5), O104:H23 (n = 2), O104:H8 (n = 1), ... Read more >>

Genome Announc (Genome announcements)
[2017, 5(33):]

Cited: 0 times

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Comparative Genomic Characterization of the Highly Persistent and Potentially Virulent Cronobacter sakazakii ST83, CC65 Strain H322 and Other ST83 Strains.

Hannah R Chase, Gopal R Gopinath, Athmanya K Eshwar, Andrea Stoller, Claudia Fricker-Feer, Jayanthi Gangiredla, Isha R Patel, Hediye N Cinar, HyeJin Jeong, ChaeYoon Lee, Flavia Negrete, Samantha Finkelstein, Roger Stephan, Ben D Tall, Angelika Lehner,

Cronobacter (C.) sakazakii is an opportunistic pathogen and has been associated with serious infections with high mortality rates predominantly in pre-term, low-birth weight and/or immune compromised neonates and infants. Infections have been epidemiologically linked to consumption of intrinsically and extrinsically contaminated lots of reconstituted powdered infant formula (PIF), thus contamination ... Read more >>

Front Microbiol (Frontiers in microbiology)
[2017, 8:1136]

Cited: 6 times

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Draft Genome Sequence of Cronobacter sakazakii GP1999, Sequence Type 145, an Epiphytic Isolate Obtained from the Tomato's Rhizoplane/Rhizosphere Continuum.

Hannah R Chase, Leo Eberl, Roger Stephan, HyeJin Jeong, Chaeyoon Lee, Samantha Finkelstein, Flavia Negrete, Jayanthi Gangiredla, Isha Patel, Ben D Tall, Gopal R Gopinath, Angelika Lehner,

We present here the draft genome of Cronobacter sakazakii GP1999, a sequence type 145 strain isolated from the rhizosphere of tomato plants. Assembly and annotation of the genome resulted in a genome of 4,504,670 bp in size, with 4,148 coding sequences, and a GC content of 56.8%. ... Read more >>

Genome Announc (Genome announcements)
[2017, 5(31):]

Cited: 2 times

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Use of a Pan-Genomic DNA Microarray in Determination of the Phylogenetic Relatedness among Cronobacter spp. and Its Use as a Data Mining Tool to Understand Cronobacter Biology.

Ben D Tall, Jayanthi Gangiredla, Christopher J Grim, Isha R Patel, Scott A Jackson, Mark K Mammel, Mahendra H Kothary, Venugopal Sathyamoorthy, Laurenda Carter, Séamus Fanning, Carol Iversen, Franco Pagotto, Roger Stephan, Angelika Lehner, Jeffery Farber, Qiong Q Yan, Gopal R Gopinath,

Cronobacter (previously known as Enterobacter sakazakii) is a genus of Gram-negative, facultatively anaerobic, oxidase-negative, catalase-positive, rod-shaped bacteria of the family Enterobacteriaceae. These organisms cause a variety of illnesses such as meningitis, necrotizing enterocolitis, and septicemia in neonates and infants, and urinary tract, wound, abscesses or surgical site infections, septicemia, and ... Read more >>

Microarrays (Basel) (Microarrays (Basel, Switzerland))
[2017, 6(1):]

Cited: 2 times

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Analysis and Characterization of Proteins Associated with Outer Membrane Vesicles Secreted by Cronobacter spp.

Mahendra H Kothary, Gopal R Gopinath, Jayanthi Gangiredla, Prasad V Rallabhandi, Lisa M Harrison, Qiong Q Yan, Hannah R Chase, Boram Lee, Eunbi Park, YeonJoo Yoo, Taejung Chung, Samantha B Finkelstein, Flavia J Negrete, Isha R Patel, Laurenda Carter, Venugopal Sathyamoorthy, Séamus Fanning, Ben D Tall,

Little is known about secretion of outer membrane vesicles (OMVs) by Cronobacter. In this study, OMVs isolated from Cronobacter sakazakii, Cronobacter turicensis, and Cronobacter malonaticus were examined by electron microscopy (EM) and their associated outer membrane proteins (OMP) and genes were analyzed by SDS-PAGE, protein sequencing, BLAST, PCR, and DNA ... Read more >>

Front Microbiol (Frontiers in microbiology)
[2017, 8:134]

Cited: 5 times

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Use of the Escherichia coli Identification Microarray for Characterizing the Health Risks of Shiga Toxin-Producing Escherichia coli Isolated from Foods.

David W Lacher, Jayanthi Gangiredla, Isha Patel, Christopher A Elkins, Peter C H Feng,

More than 470 serotypes of Shiga toxin-producing Escherichia coli (STEC) have been identified, but not all cause severe illness in humans. Most STEC that cause severe diseases can adhere to epithelial cells, produce specific stx subtypes, and belong to certain serotypes; therefore, these traits appear to be critical STEC risk ... Read more >>

J. Food Prot. (Journal of food protection)
[2016, 79(10):1656-1662]

Cited: 3 times

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Linking Genomo- and Pathotype: Exploiting the Zebrafish Embryo Model to Investigate the Divergent Virulence Potential among Cronobacter spp.

Athmanya K Eshwar, Ben D Tall, Jayanthi Gangiredla, Gopal R Gopinath, Isha R Patel, Stephan C F Neuhauss, Roger Stephan, Angelika Lehner,

Bacteria belonging to the genus Cronobacter have been recognized as causative agents of life-threatening systemic infections primarily in premature, low-birth weight and immune-compromised neonates. Apparently not all Cronobacter species are linked to infantile infections and it has been proposed that virulence varies among strains. Whole genome comparisons and in silico ... Read more >>

PLoS ONE (PloS one)
[2016, 11(6):e0158428]

Cited: 4 times

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FDA Escherichia coli Identification (FDA-ECID) Microarray: a Pangenome Molecular Toolbox for Serotyping, Virulence Profiling, Molecular Epidemiology, and Phylogeny.

Isha R Patel, Jayanthi Gangiredla, David W Lacher, Mark K Mammel, Scott A Jackson, Keith A Lampel, Christopher A Elkins,

Most Escherichia coli strains are nonpathogenic. However, for clinical diagnosis and food safety analysis, current identification methods for pathogenic E. coli either are time-consuming and/or provide limited information. Here, we utilized a custom DNA microarray with informative genetic features extracted from 368 sequence sets for rapid and high-throughput pathogen identification. ... Read more >>

Appl. Environ. Microbiol. (Applied and environmental microbiology)
[2016, 82(11):3384-3394]

Cited: 10 times

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Characterization of Shiga Toxin Subtypes and Virulence Genes in Porcine Shiga Toxin-Producing Escherichia coli.

Gian Marco Baranzoni, Pina M Fratamico, Jayanthi Gangiredla, Isha Patel, Lori K Bagi, Sabine Delannoy, Patrick Fach, Federica Boccia, Aniello Anastasio, Tiziana Pepe,

Similar to ruminants, swine have been shown to be a reservoir for Shiga toxin-producing Escherichia coli (STEC), and pork products have been linked with outbreaks associated with STEC O157 and O111:H-. STEC strains, isolated in a previous study from fecal samples of late-finisher pigs, belonged to a total of 56 ... Read more >>

Front Microbiol (Frontiers in microbiology)
[2016, 7:574]

Cited: 19 times

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