Atetylenchus   

 

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Rev 10/17/2024

  Classification Hosts
Morphology and Anatomy Life Cycle

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Classification:

Tylenchida
       Tylenchina
        Tylenchoidea
         Tylenchidae  
          Boleodorinae  

           Atetylenchus Khan, 1973

Type species of the genus: Atetylenchus abulbosus (Thorne, 1949) Khan, 1973

    Synonyms:
      Leipotylenchus (Sher, 1971)

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Morphology and Anatomy:

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Refer to subfamily diagnosis (Boleodorinae).

This genus is tentatively included under the Boleodorinae because it shares many characteristics with Psilenchus; the en-face view is, however, more like Filenchus (subfamily Tylenchinae).

Females didelphic-amphidelphic

KEY TO THE SPECIES OF ATETYLENCHUS (per Hosseinvand et al.,2020)

1.  Tail very long (165-230 um), filiform �.. A. metaporus Erum & Shahina, 2008

 Tail shorter (under 140 um), conical or clavate �.. 2

 

2. Body length 1-1.5 mm; stylet = 13-16 um �.. A. abulbosus (Thorne, 1949) Khan, 1973

 Body length under 1 mm; stylet 13 um or less �.. 3

 

 3. Stylet with weak knobs; tail becoming broader near the terminus and ending to a pointed projection �.. A. amiri (Maqbool & Shahina, 1984) Geraert & Raski, 1987

 Stylet without knobs; tail regularly tapering or clavate �.. 4

 

4. Lip region with four pronounced lobes giving a disc-like structure; phasmids at mid-tail �.. A. longilabiatus

 Lip region simple, without prominent lobes; phasmids at anterior half of tail........ 5

 

 5. Tail first conical, but then cylindrical to slightly clavate, 90-136 um �.. A. dezfuliensis

 Tail conical, regularly tapering towards terminus, 51-75 um �.. 6

 

 6. Body length under 0.7 mm; tail 51-62 um; V = 54-59 �.. A. minor Yaghoubi, 369 Pourjam, Atighi & Pedram, 2015

 Body length more than 0.7 mm; tail 63-75 um; V = 45-51 �.. A. graminus (Bajaj, Kaushik & Bhatti, 1982) Siddiqi, 2000



Body size range for the species of this genus in the database - Click:
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Distribution:

 

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Economic Importance:

 

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Feeding:

 

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Hosts:

For an extensive host range list for this genus, click
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Life Cycle:

For Ecophysiological Parameters for this genus, click 
 
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Damage:

 

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Management:

 

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References:

Hosseinvand, M., A. Eskandari, P. Castillo, J.E. Palomares-Rius and R. Ghaderi. 2020. Systematic position of the genus Atetylenchus Khan, 1973 (Nematoda: Tylenchidae) with description of two new species. Nematology 2020: 1155-1167.

Yaghoubi, A., E. Pourjam, M. Reza Atighi and M. Pedram 2015. Description of Atetylenchus minor n. sp. (Tylenchina: Tylenchidae) and data on two other species of the family. Nematology 17:981-994.

 

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Copyright © 1999 by Howard Ferris.
Revised: October 17, 2024.