Globodera tabacum

 

Contents

 

Rev 12/10/2019

Tobacco cyst nematode Classification Hosts
Morphology and Anatomy Life Cycle
Return to Globodera Menu Economic Importance Damage
Distribution Management
Return to Heteroderidae Menu Feeding  References
    Go to Nemaplex Main Menu   Go to Dictionary of Terminology

Classification:

      Tylenchida
       Tylenchina
        Tylenchoidea
         Heteroderidae
          Punctoderinae
                  
Globodera tabacum (Lownsbery & Lownsbery, 1954) Behrens 1975

Tobacco Cysts Nematode

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Morphology and Anatomy:

Females: Cyst stage present. 

 

Body globose, spheroidal, with a short neck and no terminal cone.

 

 

All eggs retained in body (no egg-mass).

 

Cysts of Globodera tabacum
Males: Vermiform; body twisted into a C or S shape. 

Lateral field with four lines. 

Spicules greater than 30 µm in length, distally pointed. 

No cloacal tubus. 

Tail short, hemispherical.

Second-stage juveniles: Stylet less than 30 µm long.

Lateral field with four lines.

Esophageal glands filling body cavity. 

Tail conical, pointed, with terminal half hyaline.

 

Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

 

 

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Distribution:

  Described originally on tobacco in USA, recorded in Japan in greenhouse-grown eggplant in 1998 (Uehara and Momota, 2018).

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Economic Importance:

 

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Feeding:

Sedentary semi-endoparasite of roots

Feeding site and feeding patterns typical of genus Globodera.

Nurse cell system is a multinucleate syncytium.

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Hosts:

Tobacco and other Solanaceae.

For an extensive host range list for this species, click
 

Very narrow range: potato, tomato, and some weeds.

 

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Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click If species level data are not available, click for genus level parameters

 
 
White females and cysts of Globodera tabacum on root surface.  
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Damage:

Stunted tobacco plants in a field infested with G. tabacum.

Photograph by J.A. Fox, VPI.

 

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Management:

  Host Plant Resistance, Non-hosts and Crop Rotation alternatives:

For plants reported to have some level of resistance to this species, click
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References:

Luc, Maggenti & Fortuner, Rev. Nematol. 11(2):159-176 (1988)

Uehara, T. and Momota, Y. 2018. Reproduction of tobacco cyst nematode Globodera tabacum on several Japanese tomato cultivars. Nematological Research 48:27-30.


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Copyright © 1999 by Howard Ferris.
Revised: December 10, 2019.