About
56
Publications
10,507
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
140
Citations
Citations since 2017
Introduction
Additional affiliations
September 2017 - present
USDA-ARS, Beltsville,MD ORISE Participant
Position
- Researcher
Description
- Systematics, morphology and identification of plant-parasitic nematodes and curation of specimen-based biological collections such as the USDA Nematode Collection.
August 2015 - July 2017
Position
- Professor
Description
- Teaching Botany and Ecology lectures and labs; Claflin University Freshman Year Experience lecture
Education
September 2005 - September 2011
University of Agricultural Science and Veterinary Medicine Cluj-Napoca
Field of study
- Horticulture (Genetics and Plant breeding)
Publications
Publications (56)
Symptoms of beech leaf disease (BLD), first reported in Ohio in 2012, include interveinal greening, thickening and often chlorosis in leaves, canopy thinning and mortality. Nematodes from diseased leaves of American beech (Fagus grandifolia) sent by the Ohio Department of Agriculture to the USDA, Beltsville, MD in autumn 2017 were identified as the...
Punctodera mulveyi n. sp. is described and illustrated from turf grass (Poa annua) in golf course greens with other fescues in Bandon, Coos County, Oregon, USA. Females and cysts are characterised by a saccate, globose to ovoid or pear-shaped body with a protruding neck. The cuticle has a lace-like pattern of ridges and heavy punctations on the sub...
Root-lesion nematodes (Pratylenchus spp.) of the genus Pratylenchus Filipjev, 1936, are
among the most important nematode pests on soybean (Glycine max (L.) Merr.), along with soybean
cyst and root-knot nematodes. In May 2015 and 2016, a total of six soil samples were collected from
a soybean field inWalcott, Richland County, ND and submitted to th...
The pin nematode, Paratylechus beltsvillensis n. sp. collected from rhizosphere soil of a Virginia pine tree (Pinus virginiana Mill) growing in Little Paint Branch Park, Beltsville, Prince George's County, Maryland, USA, is described and illustrated along with light and scanning electron photomicrographs. Females, males, and juveniles of this new s...
Plant-parasitic nematodes (PPNs) are important pests that cause an estimated ten billion
dollars of crop loss each year in the United States and over 100 billion dollars globally. The Animal and Plant Health Inspection Service (APHIS) within the U.S. Department of Agriculture maintains and updates the U.S. Regulated Plant Pest list. Currently, the...
Specimens of a tylenchid nematode were recovered in 2019 from soil samples collected from a corn field, located in Pickens County, South Carolina, USA. A moderate number of Tylenchus sp. adults (females and males) were recovered. Extracted nematodes were examined morphologically and molecularly for species identification, which indicated that the s...
The pathogenicity of the citrus nematode, Tylenchulus semipenetrans, on citrus, grape, olive, loquat, and persimmon species and cultivars was determined in several greenhouse tests. The results showed that T. semipenetrans infected and reproduced successfully on all the tested fruit species and cultivars. The citrus (lime, mandarin, and sour orange...
The North American beech leaf disease (BLD) nematode, Litylenchus crenatae mccannii Handoo, Li, Kantor, Bauchan, McCann, Gabriel, Yu, Reed, Koch, Martin and Burke, 2020, is recognized as a newly emergent nematode species that causes BLD in beech trees (Fagus spp.) in North America (Carta et al. 2020; Kantor et al. 2022a). Since the first report of...
Sauertylenchus maximus was discovered during a survey conducted at the Arlington National Cemetery, Virginia, for the type specimens of Hoplolaimus galeatus. Besides the fresh material, the fixed specimens of S. maximus were also studied by molecular and morphological means. The morphological and morphometric characteristics of the recovered fresh...
This is a compilation of articles published in the Special Issue Systematics, Morphological, and Molecular Characterization of Economically Important Plant–Parasitic Nematodes: A Themed Issue in Honor of Dr. Gary Bauchan in Plants. It includes a series of original research (seven) and review articles (four) focused on plant-parasitic nematodes incl...
The United States Department of Agriculture Nematode Collection (USDANC) has one of the largest and most valuable nematode collections in the world which includes millions of specimens. The collection was established in 1960 by A. Morgan Golden. Over the years, nematodes samples from 149 countries were incorporated into the collection. If we add al...
Plant-parasitic nematodes are microscopic worms that cause an estimated ten billion dollars of crop losses each year in the United States and 100 billion dollars globally. One problem with nematodes is that growers have no idea of how many kinds of nematodes exist and the host ranges of nematodes on specific crop cultivars such as medical hemp (Can...
In August of 2021, several cysts with juveniles and eggs were discovered during a vegetation survey conducted at the Arlington National Cemetery, Virginia. Eight soil samples were collected from the rhizosphere region of the common grass (Festuca arundinacea L.) and processed at the Mycology and Nematology Genetic Diversity and Biology Laboratory (...
In August of 2021, several cysts with juveniles and eggs were discovered during a vegetation survey conducted at the Arlington National Cemetery, Virginia. Eight soil samples were collected from the rhizosphere region of the common grass (Festuca arundinacea L.) and processed at the Mycology and Nematology Genetic Diversity and Biology Laboratory (...
The pathogenicity of the root-knot nematodes Meloidogyne arenaria, M. incognita and M. javanica on spinach cvs. ‘Balady’, ‘Barkly’, ‘Orient’, ‘Pacific’ and ‘Solanicy’, Swiss chard cvs. ‘Balady’ and ‘Ford Hook’, and table beet cvs. ‘Asgro Wonder’, ‘Balady’, ‘Detroit Dark’ and ‘Detroit Spainal’ was determined in several greenhouse tests. The results...
The reactions of five spinach, four table beet, and two Swiss chard cultivars to infection with the cyst nematodes Heterodera schachtii and H. trifolii were studied under greenhouse condition. The results showed that the cultivars of spinach (‘Balady’, ‘Barkly’, ‘Orient’, ‘Solanicy’, ‘Pacific’), table beet (‘Balady’, ‘Detroit Dark Red’, ‘Detroit Sp...
Meloidoyne hispanica Hirschmann, 1986 specimens were recovered in 2019 from soil samples collected from a corn field located in Pickens County, South Carolina, USA. A high number of Meloidogyne hispanica juveniles were recovered through sieving and sugar centrifugal flotation method from rhizosphere of corn plants. Extracted nematodes were examined...
A high number of second stage juveniles of the root-knot nematode
were recovered from soil samples collected from a corn field,
located in Pickens County, South Carolina, USA in 2019. Extracted
nematodes were examined morphologically and molecularly for
species identification which indicated that the specimens of root
knot juveniles were Meloidogyn...
The golden potato cyst nematode, Globodera rostochiensis (W ollenweber, 1923) Skarbilovich ( 1959) is a damaging soilborne quarantine pest of Solan um tuberosum (potato) and other solanaceous crops worldwide. In spring of 2021 a survey was conducted in area of Abo El Matamer, Bah era governorates in Egypt. Soil samples were taken in zigzag pattern...
Cactodera torreyanae Cid del Prado Vera & Subbotin, 2014 cysts were discovered during a Pale Potato Cyst Nematode (PCN) survey conducted by Minnesota Department of Agriculture as part of the Animal and Plant Health Inspection Service (APHIS) efforts to survey states for the presence of PCN. The soil samples were collected from a potato field, locat...
Beech leaf disease (BLD) was first reported in 2012 in Lake County, Ohio on American beech trees (Fagus grandifolia Ehrh.). Since then, it spread across the Northeastern United States and has been reported from Ohio, Pennsylvania, New York, New Jersey, Connecticut, Rhode
Island, Maine, West Virginia, and Ontario, Canada (Carta et al. 2020; Marra an...
During nematode surveys in natural vegetation, a new species, described herein as Trichodorus marylandi n. sp., was identified in addition to Paratrichodorus species and Nanidorus minor from Maryland, USA, and three putative new Trichodorus species from California. Trichodorus marylandi n. sp. is about 1 mm long with a medium-sized onchiostyle 54 (...
Specimens of Trichodorus n.sp. were recovered during a nematode survey of natural vegetation along the bank of Western Branch Patuxent River from Upper Marlboro, Maryland. The length of the new species is about 1 mm, with a medium-sized onchiostylet. Males have a 42 µm long spicule on average, gubernaculum typical keel-like thickening posteriorly a...
During the survey of soil and plant-parasitic nematodes of vegetable and fruit crops of Kashmir valley, Jammu and Kashmir, ten new species including two new genera of following were recovered: Fotedaronema kashmiriensis gen. n. sp. nov., from soil around roots of Pyrus communis L. from Sonamarg, Parasicagutter chitwoodi gen. n. sp. nov., from soil...
In 2019, Cactodera milleri cysts were discovered from soil samples collected from a Chenopodium quinoa field, located in Mosca, Alamosa county, Colorado, USA. Approximately 200 lemon shaped cysts and several hundred juveniles were recovered from the affected quinoa plants. The same species was also identified from several counties in Minnesota from...
The genus Cactodera, has fifteen known species. Cactodera milleri was originally described infecting the roots of common lambsquarter (Chenopodium album) in Michigan. Chenopodium quinoa is a known host for C. milleri since 1990 when Graney and Bird included it in the host range study of this species. In 2019, C. milleri cysts were recovered from so...
In this study, molecular characterization of Paratylenchus nanus collected from the type locality in Four Mile Run, Fall Church, Virginia using COI, D2-D3 of 28 S rRNA and ITS rRNA gene sequences was provided. We molecularly also characterized, Paratylenchus specimens collected from grasses in Devils Lake, Ramsey County, North Dakota indicated as t...
The genus Cactodera,has fifteen known species. Cactodera milleri was originally described infecting the roots of common lambsquarter (Chenopodium album) in Michigan. Chenopodium quinoa is a known host for C. milleri since 1990 when Graney and Bird included it in the host range study of this species. In 2019, C. milleri cysts were recovered from soi...
During the survey of soil and plant-parasitic nematodes of vegetable and fruit crops of Kashmir valley, Jammu and Kashmir, seven new species and one new record of following species were recovered:
Helicotylenchus siddiqii sp. nov. from soil around roots of Glycine max L. Miller, from Kashmir University Campus, Hazratbal, Srinagar, Kashmir; H. foted...
Nematodes are Earth's most numerous multicellular animals and include species that feed on bacteria, fungi, plants, insects, and animals. Foliar nematodes are mostly pathogens of ornamental crops in greenhouses, nurseries, forest trees, and field crops. Nematode identification has traditionally relied on morphological and anatomical characters usin...
Chia (Salvia hispanica L.) seeds are used for food, drinks, oil, and animal feed, and all plant parts are employed in traditional medicine. The growing demand for the seed has created a need for improved disease management. Plant-parasitic nematodes have been found on other Salvia spp., but none have been reported from S. hispanica. Chia has also n...
Festulolium hybrids are forage grasses used worldwide in temperate climates. They are associated with the fungal endophyte Epichloë uncinata , which aids in nutrient uptake, drought tolerance, and production of metabolites that protect against parasites and herbivores. Epichloë uncinata produces loline alkaloids, which can deter insect pests. Festu...
Root-lesion nematodes ( Pratylenchus spp.) are among the most important nematode pests on grapevine along with root-knot, dagger, and ring nematodes. In 2019, two samples of both soil and roots were collected from a vineyard in Delano, Kern County, California and submitted to the United States Department of Agriculture, ARS, Mycology and Nematology...
Ring nematodes of the genus, Mesocriconema are a group of polyphagous, migratory root-ectoparasites of plants. In a nematological survey of three governorates in Egypt, Mesocriconema sphaerocephalum (Taylor, 1936) Loof, 1989 was isolated from the rhizosphere of soil samples in five bell pepper (Capsicum annuum L.) fields, as a new host record, at B...
A foliar nematode, Litylenchus crenatae ssp. mccannii, is associated with beech leaf disease (BLD) symptoms. Information about the types of tissues parasitized and how nematode populations fluctuate in these tissues over time is needed to improve surveys as well as understand the nematodes role in BLD. During this study, the nematode was detected t...
The cover image is based on the Original Article Beech leaf disease symptoms caused by newly recognized nematode subspecies Litylenchus crenatae mccannii (Anguinata) described from Fagus grandifolia in North America by Lynn Carta, Gary Bauchan, Jennifer Koch et al., https://doi.org/10.1111/efp.12580.
In the summer of 2016, a field of corn (Zea mays) in Spencer County, Indiana was observed with heavily stunted plants, and from the
affected roots a large number of cysts were recovered. Soil samples
were submitted to one of us (JF), who extracted the nematode cysts
and sent them to the USDA-ARS, Mycology and Nematology Genetic Diversity and Biolog...
Journal of Nematology Volume 52,2020 Featured Article
In the spring of 2019, a cyst nematode was discovered from soil
samples collected from an alfalfa field in Millard County, Utah. The
soil samples were submitted to one of us (SH), who extracted the
nematode cysts and sent them to the USDA-ARS, Mycology and
Nematology Genetic Diversity and Biology Laboratory (MNGDBL),
Beltsville, MD for morphologica...
The reaction of oat, eight wheat cultivars, and five weedy grasses to the cyst nematode Heterodera goldeni was studied in the greenhouse. The results showed that oat (Avena sativa (L.)) cv. Baladi, the common wheat (Triticum vulgare Vill.) cvs. Gemmieza 9, Gemmieza 10, Giza 168, Sids 1, Sakha 93, Sakha 94, and the durum wheat (T. durum Desf.) cvs....
The resistance of 4 cotton, 2 sesame, and 6 flax cultivars to the root-knot nematodes Meloidogyne arenaria (Ma), M. incognita race 1 (Mil) and/or M. javanica (Mj) was determined in green house studies. The results showed that the cotton cvs Giza 77, Giza 85, Giza 88, Giza 89 and sesame cvs Shandwil 1 and Toshka 1 were resistant (R) to the tested ne...
In the summer of 2016, a field of corn (Zea mays) in Spencer County, Indiana was observed with heavily stunted plants. From the affected roots, a large number of cysts were recovered. Spencer county's geographic location is just across the Ohio River from Kentucky, approximately 200 miles away from Hickman County, Kentucky, where the nematode was p...
In the spring of 2019, a soil sample collected from a golf course from Southern Oregon (Brandon, OR), was received by the USDA-ARS, Mycology and Nematology Genetic Diversity and Biology Laboratory (MNGDBL), Beltsville, Maryland for species identification. A large number of cysts and juveniles (J2) were separated from soil by sieving and Baermann fu...
In April 2018, a cyst nematode was discovered from soil samples collected from a cactus garden collection in Meridian, Ada County, Idaho, USA. The cactus garden collection field reported was observed with localized areas of heavily stunted plants. Roots from affected plants displayed moderate numbers of nematode cysts. Living nematode juveniles (J2...
Citrullus amarus (CA) (previously known as Citrullus lanatus var.
citroides) accessions collected in southern Africa are known to have
resistance to root-knot nematodes (RKN) and are suitable rootstocks
for grafted watermelon. The objective of this study was to conduct a
comparative metabolomics analysis and identify unique metabolites in
roots of...
The United States Department of Agriculture Nematode Collection (USDANC) is one of the largest and most valuable nematode repositories in existence and includes millions of specimens housed in over 40,000 permanent slides and over 9,400 vials. The USDANC was established in 1960 by A. Morgan Golden and currently contains more than 49,200 species ent...
The United States Department of Agriculture Nematode Collection (USDANC) is one of the largest and most valuable in existence and includes millions of specimens housed in over 39,800 permanent slides and 9,300 vials. This collection preserves type specimens of nematodes to serve as a reference for identifications and future taxonomic revisions. Als...
Originally from Africa, watermelon is a staple crop in South Carolina and rich source of important phytochemicals that promote human health. As a result of many years of domestication and selection for desired fruit quality, modern watermelon cultivars are susceptible to biotic and abiotic stress. The present review discusses how genetic selection...
The Water-Energy-Food (WEF) Nexus concept has great potential for understanding a region’s vulnerability to climate change. This paper examines individual components that form the supporting pillars of the nexus in Central and Eastern European (CEE) countries. An overview of specific CEE political environments that govern economic and environmental...
Nuclear magnetic resonance (NMR) was used to study the metabolic profiles of different watermelon lines and to highlight metabolic variation between several Citrullus lanatus var. citroides (CLC) accessions and Charleston Gray. Three days old plant roots were collected and analyzed using one-dimensional (1D) (1) H NMR spectroscopy. AMIX and MatLab...
Today’s worldwide growing interest in biofuels production, in obtaining higher biomass yields, and in providing cleaner liquid fuels for
an affordable price could lead to results that might positively solve known present concerns related to global warming and decreasing
petroleum fuel resources through the use of the natural rural landscapes. Grass...
Lactose intolerance affects thirty to fifty million Americans, being more common among certain ethnicities than others. At least seventy-five percent of African Americans are lactose intolerant, making this group disproportionately affected by this condition and more vulnerable to certain chronic diseases. Mild to severe digestive symptoms associat...
The objective of this work was to obtain transgenic tomato plants expressing the PfCP-2.9 protein (a chimera of the antigens MSP1 and AMA1 of Plasmodium falciparum). Cotyledons of seven-day-old tomatoes, cultivar Summers, were transformed via Agrobacterium tumefaciens. Transgenic expression in the T0 plants was verified in the DNA extracted from fr...
The in vitro culture of tomatoes was initiated with the goal of creating an edible malaria vaccine which could be successfully expressed in tomatoes. The identification of the best culture medium and of the most suitable tomato variety was performed by conducting variety x media interaction study. Six tomato varieties were used in order to carry ou...
Malaria is one of the most deadly diseases caused by protozoan parasites of genus Plasmodium. It affects 300-500 million people annually, of which more than a million lives are lost; among them majority under 5 years of age. By conventional wisdom, the immune mechanisms responsible for protection against malaria will require a multiple of 10-15 ant...
Malaria, a disease caused by protozoan parasites of genus
Plasmodium, is one of the world’s biggest scourges. It affects
300–500 million people annually, of which an estimated 3
million lives are lost, among them over 1 million children
(majority under 5 yr of age). By conventional wisdom, the
immune mechanisms responsible for protection against
ma...
Projects
Projects (3)
This Special Issue on The Systematics and Morphology of Plant-Parasitic Nematodes aims to publish articles (original research manuscripts and review articles) that focus on taxonomy, morphology, and molecular methods used for identification of PPN associated with economically important agriculture, horticultural, and forestry crops.
Deadline for manuscript submissions: 31 December 2020.
Additional information can be found here:
https://www.mdpi.com/si/49767
Dr. Zafar Handoo
Dr. Mihail Kantor
Guest Editors
Conducting research on the systematics and morphology of plant-parasitic nematodes. Identification and curation of of plant parasitic nematodes.
I use Nuclear Magnetic Resonance (NMR) to study the metabolic profiles of different watermelon lines and to highlight metabolic variation between several Citrullus lanatus var. citroides (CLC) accessions and cultivars.