Trichodorus lownsberyi

 

Contents

 

Rev 08/11/2023

  Classification Hosts
Morphology and Anatomy Life Cycle
Return to Trichodorus Menu Economic Importance Damage
Distribution Management
Return to Trichodoridae Menu Feeding  References
    Go to Nemaplex Main Menu   Go to Dictionary of Terminology

 


Classification:

      Enoplea
       Triplonchida
        Diphtherophorina
         Diphtherophoidea
          Trichodoridae
           Trichodorinae
             Trichodorus lownsberyi Cid del Prado Vera, Subbotin & Decraemer. 2021

Back to Top

Morphology and Anatomy:

 
  • Medium-sized body about for the genus, about 600-700 um long

Female:

  • Cephalic region rounded. secretory-excretory pore near anterior third of pharyngeal bulb.
  • Didelphic, amphidelphic with reflexed ovaries,
  • Spermatheca oval specimens, filled with sperm,
  • Vulva pore-like,
  • Vagina, more or less rhomboid in shape and 28-60% of body diam. long, vaginal sclerotisation pieces oval to rounded triangular in longitudinal optical section, well separated by invaginated body cuticle and 2.0-2.5 μm in length.
  • One pair of anterior advulvar lateral body pores (LBP) and one pair of postadvulvar LBP present.
  • Tail very short and hemispherical. One pair of caudal pores present subterminally.

Male

  •  Cuticle moderately swollen.
  • Cephalic region rounded with three ventromedian cervical papillae,anteriormost CP in onchiostyle region, the second slightly posterior to base of pharyngostome, and third located within isthmus region
  • Lateral cervical pore present on both sides anterior to first cervical; papilla.
  • Monorchic, testis with sperm 6.0-12 um long.
  • Spicules with wide manubrium, blade with conspicuous narrower part about mid-spicule with bristles, blade gradually tapering to distal end with septum.
  • Gubernaculum very thin, corpus with keel-like distal thickening.
  • Three ventromedian precloacal supplements located anterior to retracted spicules. A pair of postcloacal supplements located just posterior to cloacal opening and a pair of caudal pores located just posterior to it.
  • Tail 50% of cloacal body diam., terminal cuticle not thickened

 

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

Ref: Cid del Prado et al., 2021
Back to Top

Distribution:

Dsecribed from soil around Buxus sempervirens in the Plant Pathology building garden, Montecillo, Texcoco, Mexico State, Mexico

Back to Top

Economic Importance:

 

Back to Top

Feeding:

Ectoparasitic; feeds on epidermal cells just behind root tips.

 

Back to Top

Hosts:

For an extensive host range list for this species, click


Back to Top

Life Cycle:

Ecophysiological Parameters:

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

Damage:

Back to Top

Management:

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

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

 

Back to Top

References:

Decraemer, W. and Subbotin, S.A. 2021. Molecular and morphological characterisation of Trichodorus species (Nematoda: Trichodoridae), with description of T. pseudoaequalis n. sp. from California and other states of the USA. Nematology 23:317-344.

Cid del Prado Vera, I., Subbotin, S.A., Decraemer, W. 2021. Descriptions of Trichodorus lownsberyi sp. n., Nanidorus minor (Colbran, 1956) Siddiqi, 1974 (Nematoda: Trichodoridae) and Longidorus quercus sp. n. (Nematoda: Longidoridae) from Mexico. Nematology, 23:1023-1037. doi: https://doi.org/10.1163/15685411-bja10092

 

 
Copyright  1999 by Howard Ferris.
Revised: August 11, 2023.