Heterodera latipons

 

Contents

 

Rev 07/26/2021

Classification Hosts
Morphology and Anatomy Life Cycle
Return to Heterodera Menu Economic Importance Damage
Distribution Management
Return to Heteroderidae Menu Feeding  References
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Classification:

Tylenchida
       Tylenchina
        Tylenchoidea
         Heteroderidae
          Heteroderinae

           Heterodera latipons Franklin, 1969

Mediterranean Cereal Cyst Nematode

Synonyms:
    Bidera latipons (Franklin, 1969) Krall & Krall, 1978

   Ephippiodera latipons (Franklin, 1969) Shagalina & Krall, 1981

Detailed information on this species not yet prepared.  Host data may be available.

Review general characteristics of the genus Heterodera.

 

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Morphology and Anatomy:

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Females:
Males:  

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

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Distribution:

Described and reported from roots of wheat and barley in Israel, Italy, Cyprus, Turkey and other Mediterranean regions.


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Economic Importance:

Heterodera latipons, is considered to cause substantial yield losses in wheat throughout the world (Dababat et al., 2021).

Pathotypes with different virulence occur in H. latipons. The pathotypes are identified based on the reproductive ability of the cyst nematodes on wheat, barley and oat cultivars. The differentiation scheme called the �International Test Assortment� was derived from 7-11 virulent phenotypes which resulted from extensive selection pressure (Cook and Rivoal, 1998; Dababat et al., 2021).

For example, barley cultivars Ortolan, Morocco, KVL191, Bajo Aragon 1-1, Herta, Martin 403-2, and oat cultivars Sun II and Pusa Hybrid Bsi were resistant or moderately resistant populations of H. latipons from Turkey while barley cultivars Emir, Dalmatische and wheat cultivar Capa were susceptible. Based on these virulence results, Turkish populations were in the Ha1 group. Further analysis of virulence  on barley, oats and wheat classified them as either Ha41 or Ha51 (Dababat et al., 2021).

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Feeding:


      

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Hosts:

Cereals
 
For an extensive host range list for this species, click

 

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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

Heterodera latipons, studied on barley (cv Athenais) in Cyprus, completed only one generation per year  Juveliles penetrated roots at soil temperatures of 14.5C, 13 days after sowing.  young cysts were seen on roots54 days after sowing and embryonated egges were present in the cysts 98 days after sowing. (Philis, 1999).

Life history progression of Heterodera latipons on barley in Cyprus (from Philis, 1999)

 

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Damage:

 

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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:

Cook, R. & Rivoal, R. (1998). Genetics of resistance and parasitism. In: Sharma, S.B. (Ed.). The cyst nematodes. Dordrecht, The Netherlands, Kluwer Academic Publishers, pp. 322-352.

Cui, J., Jiao, Y., Zhou, B., Ren, H., Li, H., Liu, S., Jiang, S., Meng, H., Li, M., Dababat, A.A., Peng, D. 2020. Pathotype resistance,classification, and seed-coating control of Heterodera avenae and H. filipjevi in the North China Plain. Plant Disease 104:3230-3238.

Dababat, A.A., M. İmren, G. Ozer, F. Mokrını, N. Duman and T. Paulıtz. 2021. Genetic and pathogenic variation in Heterodera latipons populations from Turkey. Nematology 23:47-56.

Philis, J. 1999. The life cycle of the Mediterranean cereal cyst nematode Heterodera latipons in Cyprus. Nematologia Mediterranes 27:43-46.

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