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Research Article | 21-May-2019

PATHOGENIC FREE-LIVING AMOEBA

Invasions caused by free-living and parasitic limax amoeba can pose a major threat to human health and life. The amoeba from the genera Acanthamoeba and Naegleria as well as the following species: Sappina diploidea, S. pedata, Balamuthia mandrillaris, and probably Hartmannella vermiformis, are the major cause of primary amoebic meningoencephalitis (PAM), granulomatous amebic encephalitis (GAE) and amoebic keratitis (AK). Furthermore, free-living amoeba can be vectors of bacteria, including

Natalia Łanocha-Arendarczyk, Danuta Kosik-Bogacka, Wojciech Zaorski, Karolina Kot, Katarzyna Galant, Aleksandra Łanocha

Postępy Mikrobiologii - Advancements of Microbiology, Volume 56 , ISSUE 1, 106–112

research-article | 30-November-2020

Free-living nematode assemblages associated with maize residues and their ecological significance

ratio. Free-living nematodes (FLN) also hold an integral position in decomposition (Neher, 2010; Yadav et al., 2018). These nematodes closely interact with soil microbes and contribute either directly or indirectly to N mineralization through accelerated turnover of microbial cells, modification of the microbial community, and addition of new substrates, thereby increasing the availability of N (Mekonen et al., 2017; Sultana and Bohra, 2012; Yadav et al., 2018). In the soil food web, the

Samuel Maina, Hannah Karuri, Rossa Nyoike Ng’endo

Journal of Nematology, Volume 53 , 1–12

Article | 05-December-2017

The Mesostigmatid Mite Protogamasellus mica, an Effective Predator of Free-Living and Plant-Parasitic Nematodes

small quantities of defaunated soil. These results show that P. mica multiplies rapidly when nematodes are available as a food source and has the capacity to play a role in regulating populations of both plant-parasitic and free-living nematodes. Future research should focus on understanding the crop and soil management practices required to enable this mite and other predatory species to thrive.

GRAHAM R. STIRLING, A. MARCELLE STIRLING, DAVID E. WALTER

Journal of Nematology, Volume 49 , ISSUE 3, 327–333

research-article | 16-April-2020

Nematicide efficacy at managing Meloidogyne arenaria and non-target effects on free-living nematodes in peanut production

results in that system (Kandel et al., 2017; Beeman et al., 2019). Research is needed to evaluate fluopyram efficacy for managing PRKN in peanut production, particularly given the limited number of nematicides available for peanut production. Increasingly, effect of pesticides on non-target organisms is an important consideration. In particular, free-living nematodes are a major non-target group of concern when nematicides are applied because they are biologically very similar to the target plant

Zane J. Grabau, Mark D. Mauldin, Alemayehu Habteweld, Ethan T. Carter

Journal of Nematology, Volume 52 , 1–10

research-article | 06-March-2021

Effects of fluopyram and azadirachtin integration with sunn hemp on nematode communities in zucchini, tomato and sweet potato in Hawaii

et al., 2019). In field trials, tomato yields were increased by 59% following multiple fluopyram applications (Ji et al., 2019). In other field trials on cucurbits, the reduction of M. hapla and M. javanica population densities by fluopyram was dependent on cropping season in Florida (Khanal and Desaeger, 2020). However, limited information is available on the non-target effects of fluopyram on free-living nematodes. Azadirachtin is a naturally occurring substance found in seed kernels of neem

Philip Waisen, Koon-Hui Wang, Jensen Uyeda, Roxana Y. Myers

Journal of Nematology, Volume 53 , 1–15

original-paper | 12-March-2020

Low Occurrence of Acinetobacter baumannii in Gulls and Songbirds

revealed a multitude of distinct lineages and identified the relationship of some stork isolates to clinical strains. Given that A. baumannii was also isolated from poultry livestock, hatcheries, and meat (Martin and Jackel 2011; Lupo et al. 2014; Wilharm et al. 2017), we speculated about a general preference of A. baumannii for avian hosts. To challenge this hypothesis, we performed a culture-based screening of different free-living birds, the results of which are presented here. Experimental

ANDŻELINA ŁOPIŃSKA, PIOTR INDYKIEWICZ, EVELYN SKIEBE, YVONNE PFEIFER, JANJA TRČEK, LESZEK JERZAK, PIOTR MINIAS, JACEK NOWAKOWSKI, MATEUSZ LEDWOŃ, JACEK BETLEJA, GOTTFRIED WILHARM

Polish Journal of Microbiology, Volume 69 , ISSUE 1, 85–90

research-article | 30-November-2018

A draft genome for a species of Halicephalobus (Panagrolaimidae)

, free-living species of Panagrolaimidae have lagged behind, as have free-living species of Clade IV (sensu Blaxter et al., 1998) more generally. A major contribution to the genomics of Panagrolaimidae was the genome sequence of Panagrellus redivivus, a species championed for decades as a laboratory model for genetics and development, especially as a satellite to Caenorhabditis elegans (Srinivasan et al., 2013). More recently, several species of Panagrolaimus have been sequenced to study the

Erik J. Ragsdale, Georgios Koutsovoulos, Joseph F. Biddle

journal of nematology, Volume 51 , 1–4

research-article | 30-November-2020

Meloidogyne incognita management by nematicides in tomato production

production, but may not be apparent in confined greenhouse or lab tests. In addition, field evaluation of SRKN management by fluopyram relative to fumigants and carbamate nematicides is needed, as these products serve as a historical standard. In addition to nematicide efficacy against target plant-parasitic nematodes, minimizing impacts on non-target organisms, such as free-living nematodes, is increasingly valued. Free-living nematodes may contribute to productive soil by providing services such as

Zane J. Grabau, Chang Liu, Rebeca Sandoval-Ruiz

Journal of Nematology, Volume 53 , 1–12

research-article | 30-November-2020

A draft transcriptome of a parasite Neocamacolaimus parasiticus (Camacolaimidae, Plectida)

The nematode family Camacolaimidae from the order Plectida is a relatively small group of marine nematodes (Holovachov, 2014) long thought to be free-living selective deposit feeders and epistrate feeders (Wieser, 1953). Recent studies, however, revealed that some members of this clade are intracellular parasites of foraminiferans (Hope and Tchesunov, 1999; Holovachov, 2015; Miljutin and Miljutina, 2016; Tchesunov et al., 2000) and internal parasites of polychaetes (Tchesunov, 2009), including

Mohammed Ahmed, Funmilola Adedidran, Oleksandr Holovachov

Journal of Nematology, Volume 53 , 1–4

Article | 21-July-2017

A Third New Species of Aporcelinus Andrassy, 2009 (Dorylaimida, Aporcelaimidae) from Vietnam, with the First SEM Study of a Representative of the Genus

THI ANH DUONG NGUYEN, JOAQUI´N ABOLAFIA, MICHAEL BONKOWSKI, REYES PEN A–SANTIAGO

Journal of Nematology, Volume 48 , ISSUE 2, 104–108

Article | 21-July-2017

Assessment of Globodera pallida RNA Extracted from Solanum Roots

The introduction of high-throughput sequencing technologies has made transcriptome analyses of plant–pathogen interactions almost routine. Nevertheless, it is still challenging to obtain RNA from populations made up of two species. An RNA extraction method that worked well on free-living Caenorhabditis elegans failed when applied to isolated Globodera pallida J2 larva. Furthermore, alternative protocols that extracted RNA from free-living J2 larva produced less satisfactory

N. CAROL CASAVANT, JOSEPH C. KUHL, FANGMING XIAO, ALLAN B. CAPLAN, LOUISE-MARIE DANDURAND

Journal of Nematology, Volume 49 , ISSUE 1, 12–20

Research Article | 22-May-2019

AMOEBAE OF THE GENUS ACANTHAMOEBA – PATHOLOGICAL AGENTS IN HUMANS

Free living, cosmopolitan amoebae of the genus Acanthamoeba present a serious risk to human health. As facultative human parasites, these amoebae may cause health and life-threatening diseases, such as Acanthamoeba keratitis (AK), granulomatous amoebic encephalitis (GAE) and cutaneous acanthamebiasis. AK is a severe, vision-threatening cornea infection with non-specific symptoms and course. GAE is a unique central nervous system disease, almost always leading to death. Cutaneous acanthamebiasis

Marcin Padzik, Edyta B. Hendiger, Lidia Chomicz, Jacek P. Szaflik

Postępy Mikrobiologii - Advancements of Microbiology, Volume 56 , ISSUE 4, 429–439

research-article | 30-November-2019

Description of Deladenus brevis n. sp. (Sphaerularioidea: Neotylenchidae) from Iran: a morphological and molecular phylogenetic study

has two entomoparasitic and free-living mycetophagous generations (Siddiqi, 2000). The list of the valid species under the genus is given by several authors (Siddiqi, 2000; Miraeiz et al., 2017; Yu et al., 2017; Morris et al., 2018). Almost all old species under the genus have been established based upon traditional approaches. On the contrary, several recently described species include molecular data (e.g., Yu et al., 2009, 2011, 2013, 2014; Morris et al., 2013; Tomar et al., 2015; Kanzaki et al

Fariba Heydari, Joaquín Abolafia, Majid Pedram

Journal of Nematology, Volume 52 , 1–13

Research Article | 21-May-2019

MICROFLORA AND PARASITOFAUNA OF ALIEN AND INVASIVE TURTLE SPECIES

Invasiveness of alien turtles results from their impact on the functioning of the local ecosystem. It is due to predation on or competing with resident species, but also transfer of new and unknown pathogenic bacteria, viruses, parasites, or fungi. Salmonella is the most often reported microorganism, both in free-living and captive turtles. Zoonotic aspect of Salmonella spp. carriage has led to the definition of RAS (Reptile Associated Salmonellosis) acquired from domestic pet reptiles

Olga Goławska, Magdalena Zając, Dariusz Wasyl, Marta Demkowska-Kutrzepa, Ewa Borzym, Paweł Różański, Artur Rzeżutka

Postępy Mikrobiologii - Advancements of Microbiology, Volume 56 , ISSUE 2, 163–170

research-article | 30-November-2019

Influences of nitrogen inputs on nematode populations under highbush blueberry

has also been commonly observed to suppress certain populations of free-living soil nematodes, particularly omnivores and predators in the Dorylaimida with ‘persister’ or K-selected traits, resulting in reduced indices of diversity and food web structure such as the nematode community structure index (e.g. Ferris et al., 2001; Forge et al., 2005b; Wang et al., 2006; Azpilicueta et al., 2014; Pan et al., 2015; Song et al., 2016). Such changes in soil food web structure have been theoretically

Thomas Forge, David Ehret, Aime Messiga, Martine Dorais

Journal of Nematology, Volume 52 , 1–14

research-article | 30-November-2019

Biological control of Meloidogyne spp. in glasshouse-grown chrysanthemum

damage caused by RKN, with a score of 0 = no root-knots and a score of 10 = roots completely covered in root-knots and the plant is dead or dying. All above- and belowground portions of the plants were then placed into paper bags and dried in an oven at 60°C for a minimum of 72 hr before the dry weight of each portion was taken. A subset of pots (i.e., five plants from each treatment; n = 120) was randomly selected to assess the free-living and plant-parasitic nematode community in the soil. A 50 g

J. R. De Long, M. A. Streminska, A. Persijn, H. M. I. Huisman, C. van der Salm

Journal of Nematology, Volume 52 , 1–12

research-article | 30-November-2020

Cultivation of Caenorhabditis elegans on new cheap monoxenic media without peptone

Caenorhabditis species, although many are also found in rotting vegetation (Felix et al., 2013; Ferrari et al., 2017; Stevens et al., 2019) while a few are associated with specific hosts (e.g., C. inopinata, C. drosophilae, C. angaria, and C. bovis) (Kanzaki et al., 2018; Kiontke, 1997; Stevens et al., 2020; Sudhaus et al., 2011). Recently, there has been increased interest in biodiversity sampling of free-living nematodes, especially those in the Caenorhabditis (Crombie et al., 2019; Dolgin et al., 2008

Tho Son Le, T. T. Hang Nguyen, Bui Thi Mai Huong, H. Gam Nguyen, B. Hong Ha, Van Sang Nguyen, Minh Hung Nguyen, Huy-Hoang Nguyen, John Wang

Journal of Nematology, Volume 53 , 1–23

research-article | 30-November-2018

Swine manure application enriches the soil food web in corn and soybean production

management of plant-parasitic nematodes is necessary to optimize crop productivity (Grabau and Chen, 2016a, 2016b) and non-parasitic, free-living nematodes contribute to and are sensitive indicators of soil fertility and ecology (Bongers, 1990; Ferris et al., 2001). In particular, soybean cyst nematode (Heterodera glycines) is the major yield-limiting pest in soybean production (Koenning and Wrather, 2010). Additional strategies to manage this pest are needed because management relies on a narrow set of

Zane J. Grabau, Yong Bao, Jeffrey A. Vetsch, Senyu Chen

Journal of Nematology, Volume 51 , 1–14

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