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Society of Nematologists @son-nemaweb.bsky.social · 10/03/2025

We are excited to announce that the application window for the new Richard Sikora Travel Award is now open! This travel award is for SON members grad students and/or postdocs presenting about Integrated Nematode Management. Scan the QR code for details or here: www.nematologists.org/SON2025-Trav...

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Society of Nematologists @son-nemaweb.bsky.social · 05/03/2025

The much smaller male may live inside the vagina and uterus of the female which can be five times longer than the male. Usually, only one male lives in the female gonad, but as many as five males have been observed in one female!

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Society of Nematologists @son-nemaweb.bsky.social · 05/03/2025

#WormFactWednesday is arriving early this week and we're talking about Trichosomoides crassicauda and endoparasitic males! Trichosomoides crassicauda, a parasite that lives in the urinary bladder of rats, especially Epimys norvegicus, has an unusual relationship between the sexes.

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Society of Nematologists @son-nemaweb.bsky.social · 03/03/2025

This week the Career Development workshop organized by the SON Industry & Grad-student committees provided career path insights to SON members around the world, supporting the society’s vision to advance the science of nematology. Like this post if you'd like another workshop!

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Society of Nematologists @son-nemaweb.bsky.social · 26/02/2025

A review of the epigenetic mechanisms present in nematode-plant interactions can be found here: pubmed.ncbi.nlm.nih.gov/32413274/

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Society of Nematologists @son-nemaweb.bsky.social · 26/02/2025

Although they are not always beneficial, these responses usually last only for a few generations. Similar epigenetic effects can occur from RNA that can be taken up from the environment and passed on from one organism to another for several additional generations, at least four.

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Society of Nematologists @son-nemaweb.bsky.social · 26/02/2025

#WormFactWednesday this week is all about how epigenetics can impact inheritance and gene expression in nematodes! The environment can alter gene expression from minor and reversible short-term changes to the DNA of the sperm and eggs.

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Society of Nematologists @son-nemaweb.bsky.social · 19/02/2025

You can get more information about nematode lethargus at these links: www.sciencedirect.com/science/arti... www.nature.com/articles/nat... or at the link in our bio!

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Society of Nematologists @son-nemaweb.bsky.social · 19/02/2025

Because it is similar to sleep in other animals as demonstrated by many behavioral and molecular characteristics such as periods of frequently interrupted movements, this quiescence is considered as a state of sleep in nematodes.

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Society of Nematologists @son-nemaweb.bsky.social · 19/02/2025

#WormFactWednesday is all about two things we love - sleep & nematodes! Most nematodes including Caenorhabditis elegans molt four times producing four juvenile stages before becoming an adult. Lethargus is a period of quiescence between the juvenile stages.

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Society of Nematologists @son-nemaweb.bsky.social · 18/02/2025

Very exciting Career Development workshop provided by the SON Industry & Student committees! Registration & event information can be found here: nematologists.org/event-6040380 Hope to see you there!

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Society of Nematologists @son-nemaweb.bsky.social · 12/02/2025

In honor of the International Day of Women and Girls in Science on #february11 we would like to recognize all of the incredible women who have made contributions throughout the history of Nematology. Thank you because we wouldn't be here without you!

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Society of Nematologists @son-nemaweb.bsky.social · 12/02/2025

This image is from 1988, when she was awarded Honorary Membership in the Florida State Horticultural Society. #Card6

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Society of Nematologists @son-nemaweb.bsky.social · 12/02/2025

She had extensive research on the efficient use of irrigation, control of soil-borne diseases, and management of insects. Amegda received the Presidential Award from the Organization of Tropical American Nematologists where she served in various roles."

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Society of Nematologists @son-nemaweb.bsky.social · 12/02/2025

This week our #WormFactWednesday is dedicated to one of the Pioneers of Nematode Management, Amegda Jack Overman (1920 - 2011). "An outstanding agriculturist, she developed fumigation practices that allowed the reuse of old land for growing vegetables and ornamentals.

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Society of Nematologists @son-nemaweb.bsky.social · 07/02/2025

Starting date is ideally March 15, 2025 and position is funded until September 30, 2026. Information about the position and Kantor lab can be found at the link in bio!

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Society of Nematologists @son-nemaweb.bsky.social · 07/02/2025

Exciting postdoc opportunity to work on the beech leaf nematode with Dr. Kantor at Penn State! The role will include designing, conducting, and analyzing a comparative greenhouse host-range test of beech leaf nematode, Litylenchus crenatae spp. mccanii (Lcm), on native tree species.

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Society of Nematologists @son-nemaweb.bsky.social · 05/02/2025

Zhang et al. 2020 details many of the relationships present between nematodes and fungi and can be found here pmc.ncbi.nlm.nih.gov/articles/PMC... #Card26

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Society of Nematologists @son-nemaweb.bsky.social · 05/02/2025

The two organisms interact synergistically so that the resulting disease is more severe than the simple additive effect of each organism. The most common disease complexes involve the root-knot, cyst, lesion, reniform, dagger, and needle nematodes.

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Society of Nematologists @son-nemaweb.bsky.social · 05/02/2025

The 1st #WormFactWednesday of February is all about the synergistic interactions of nematodes and fungus! Nematode-fungus disease interactions have been known since the descriptions of the genus Meloidogyne by Emilio Goeldi and M. arenaria by Atkinson, both in 1892.

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Society of Nematologists @son-nemaweb.bsky.social · 03/02/2025

Less than 1 week left to apply for this exciting opportunity to work with nematodes in the Sunshine State!! 🐊 Don't miss out!

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Society of Nematologists @son-nemaweb.bsky.social · 30/01/2025

Here you can see an example of different giant cells from the paper "Host-specific signatures of the cell wall changes induced by the plant parasitic nematode, Meloidogyne incognita" (Bozbuga et al. 2018) www.nature.com/articles/s41...

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Society of Nematologists @son-nemaweb.bsky.social · 30/01/2025

They interfere with the uptake of water and nutrients, block their transport, and form sinks that utilize photosynthesis that are diverted away from fruit to the female root-knot nematode."

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Society of Nematologists @son-nemaweb.bsky.social · 30/01/2025

#WormFactWednesday is coming in hot this week with a fact about the metabolic sinks root-knot nematodes create with their feeding sites! "The giant cells of root-knot nematodes are hypermetabolic feeding sites that are located in the middle of the vascular cylinder within the roots.

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Society of Nematologists @son-nemaweb.bsky.social · 22/01/2025

An incredible example of worm-stars can be seen in Antunes et al. 2015 www.researchgate.net/publication/...

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Society of Nematologists @son-nemaweb.bsky.social · 22/01/2025

While the posterior portion remains caught, the anterior "half-worm" moves away and remains viable for several days. During this timeframe, a few of the self-fertile eggs have enough time to develop and form new juveniles that can continue the next generation."

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Society of Nematologists @son-nemaweb.bsky.social · 22/01/2025

This #WormFactWednesday is all about nematode defense through autonomy with card #33! "Worm-stars, produced from numerous juvenile worms stuck together at their tails by Microbacterium nematophilum, can escape by splitting in half (autonomy).

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Society of Nematologists @son-nemaweb.bsky.social · 17/01/2025

Exciting job opportunity to be a Nematology Research Scientist at the Division of Plant Industry in Gainesville, Florida! 🐊 Application closes Sunday February 9, 2025 and more information about the position can be found here: jobs.myflorida.com/job/GAINESVI...

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Society of Nematologists @son-nemaweb.bsky.social · 15/01/2025

There are many species of Nepovirus with some examples being Cherry leaf roll virus, Potato virus U, Raspberry ringspot virus, Tobacco ringspot virus, and Tomato ringspot virus (image).

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Society of Nematologists @son-nemaweb.bsky.social · 15/01/2025

There are 3 species of Tobravirus - Pea early-browning virus (left), Pepper ringspot virus, and Tobacco rattle virus (right).

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Society of Nematologists @son-nemaweb.bsky.social · 15/01/2025

Only two clades of nematodes vector viruses, the Dorylamids and the Trichorids, including Xiphinema, Longidorus, Paralongidorus, Trichodorus, Paratrichodorus and Nanodorus. About 30 species vector approximately 15 kinds of viruses from two groups, the Nepoviruses and Tobraviruses.

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Society of Nematologists @son-nemaweb.bsky.social · 15/01/2025

Another Wednesday means another Worm Fact! Today we're discussing the role nematodes can play in vectoring the soil-borne plant viruses, the Tobra and Nepo Viruses! Nematodes are able to vector soil-borne viruses because their protein coat makes them stick to the stoma and esophageal lumen lining.

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Society of Nematologists @son-nemaweb.bsky.social · 08/01/2025

You can see an incredible example of their hearing capabilities in this video from Iliff et al. 2021! www.sciencedirect.com/science/arti...

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Society of Nematologists @son-nemaweb.bsky.social · 08/01/2025

Sound directed at their head stimulates them to move backward, whereas they move forward when sound is directed at their posterior end, showing that they can also sense the direction of the sound. The range of response is between 100 Hz to 5 kHz.

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Society of Nematologists @son-nemaweb.bsky.social · 08/01/2025

#WormFactWednesday is here again with Card #37 discussing the sensory perception capabilities of C. elegans! Earless nematodes hear sounds through their skin. In addition to hearing, nematodes can also taste, tough, smell, perceive light, and sense their body posture (prioception).

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Society of Nematologists @son-nemaweb.bsky.social · 02/01/2025

when stained with silver nitrate) and "Eberth's perithelium" (an incomplete layer of connective tissue cells encasing the blood capillaries). (4/4)

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Society of Nematologists @son-nemaweb.bsky.social · 02/01/2025

Additionally, outside of nematology, in 1880 Eberth described a bacillus that he suspected was the cause of typhoid and was confirmed in 1884! There are also 2 associated eponyms with Eberth including "Eberth's lines" (microscopic lines that appear between the cells of the myocardium (3/4)

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Society of Nematologists @son-nemaweb.bsky.social · 02/01/2025

where he laid a firm foundation for the morphology and taxonomy of nematodes. Karl, along with his peer, the Englishman Charlton Bastian, initiated the era of modern nematology on which Bütschli, Marion, De Man, Von Linstow and others continued to build the superstructure. (2/4)

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Society of Nematologists @son-nemaweb.bsky.social · 02/01/2025

Happy New Year AND Worm Fact Wednesday!!! 🎉 We're kicking off 2025 by highlighting one of the Father's of Nematology, Karl Joseph Eberth! A pathologist and bacteriologist, he wrote a treatise on nematodes entitled, "Untersuchungen über nematoden" or "Studies on Nematodes", (1/4)

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Society of Nematologists @son-nemaweb.bsky.social · 20/12/2024

More information about the position and the Kantor lab can be found at the link in bio!

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Society of Nematologists @son-nemaweb.bsky.social · 20/12/2024

Exciting Post-Doc Position Opportunity! Dr. Kantor of Penn State has a 3-year post-doc position available to work on biological control strategies for managing the North American beech leaf nematode. U.S. citizenship is NOT required and the deadline to apply is January 15th, 2025

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Society of Nematologists @son-nemaweb.bsky.social · 18/12/2024

You can find more information and images of mutant phenotypes of C. elegans in "A Transparent Window into Biology: A Primer on Caenorhabditis elegans" by Corsi, Wightman, and Chalfie (2015)

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Society of Nematologists @son-nemaweb.bsky.social · 18/12/2024

Wild-type (WT) strains of Caenorhabditis elegans have a smooth body wall and they crawl in a sinusoidal-like pattern, whereas Rolling (Rol) mutants twist their body like a corkscrew and usually remain in the same region, moving in a nearly circular pattern.

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Society of Nematologists @son-nemaweb.bsky.social · 18/12/2024

#WormFactWednesday is here to present you with card #30 - Mutant Phenotype Biology of Caenorhabditis elegans !!

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Society of Nematologists @son-nemaweb.bsky.social · 11/12/2024

rarely cause economic injury except in specific nematode/host combinations. Very high numbers, i.e. 100,000 per 500 ml of soil, on susceptible or sensitive hosts can cause a general slow decline, especially on woody plants.

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Society of Nematologists @son-nemaweb.bsky.social · 11/12/2024

#WormFactWednesday is back for round 2! This week, we have card #46 with info about Pin Nematodes (Paratylenchus spp.) The short (44 um) slender body is ventrally arcuate and the tail narrows slightly posterior to the vulva. Pin nematodes are the smallest plant-parasitic nematodes and

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Society of Nematologists @son-nemaweb.bsky.social · 05/12/2024

He described 55 new species, mainly from the Heteroderidae and Criconematidae families. A beautiful obituary was written by Kerrie A. Davis and Ian Riley and was published in Nematology in 2022. You can access it here: brill.com/view/journal...

brill.com

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Society of Nematologists @son-nemaweb.bsky.social · 05/12/2024

A nematologist from the Netherlands, he worked on the taxonomy of the cyst nematodes in the USA and Germany. Working in New Zealand, he studied entomopathogenic nematodes and clarified many taxonomic issues and parts of their life cycle.

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Society of Nematologists @son-nemaweb.bsky.social · 05/12/2024

Our very first ever #WormFactWednesday has arrived!!! Every week, I will be randomly selecting a card from the Cobb Bowl Deck of Nematode Facts cards and will be highlighting it as the fact of the week! This week, we have card #14 about Dr. Wilhelmus M. Wouts:

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Society of Nematologists @son-nemaweb.bsky.social · 03/12/2024

Are you interested in helping create a History of SON for our website and Wikipedia?? Are you also a graduate student or post-doc with active SON membership?? Boy howdy, is this the opportunity for you!! Make sure you complete and submit your abstracts by (1/13/25) for a chance to be selected!

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