Meloidogyne aegracyperi

Meloidogyne aegracyperi	Contents	Rev 12/16/2024
Nutsedge Root-knot Nematode	Classification	Hosts
	Morphology and Anatomy	Life Cycle
Return to Meloidogyne Menu	Economic Importance	Damage
	Distribution	Management
Return to Meloidogynidae Menu	Feeding	References
	Go to Nemaplex Main Menu	Go to Dictionary of Terminology

Classification:

       Chromadorea
       Rhabditida
       Tylenchina
        Tylenchoidea
         Meloidogynidae
          Meloidogyninae

Meloidogyne aegracyperi Eisenback, Holland, Schroeder, Thomas, Beacham, Handon, Paes-Takahashi & Vieira, 2019

Review general characteristics of the genus Meloidogyne.

Morphology and Anatomy:

Mature females are small (310 to 460 um), pearly white, with their egg masses completely contained inside root galls.
The neck is often at a 90 to 130 degree angle to the protruding posterior end.
The distance of the dorsal esophageal gland orifice (DEGO) to the base of the stylet is relatively long (4.0 to 6.1 uï¿½m).
The excretory pore is level with the base of the stylet.
The perineal pattern has a rounded dorsal arch with a tail terminal area that is smooth or marked with rope-like striae.
Male body twists 90 degrees throughout its length, characteristic of the genus.

Ref: Eisenback et al., 2019

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

Distribution:

Type locality of the species is the Lower Rio Grande Valley, Dona Ana County, New Mexico, USA in an onion field on purple nutsedge (Rincon/Hatch Hwy 185, onion field, N32 39.431 W107 07.801).

Etymology of the species name is deriveds from :"diseased Cyperus",

Hosts:

Type Host:: Purple nutsedge (Cyperus rotundus).

.Major hosts are yellow and purple nutsedge (Cyperus esculentus and C. rotundus). Perennial ryegrass, wheat, bentgrass, and barley are also hosts.

For an extensive host range list for this species, click

Life Cycle:

Egg masses retained within root galls.

Males are uncommon suggesting that reproduction is primarily pathenogenetic.

Ecophysiological Parameters:

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

Management:

Resistance

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

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

Eisenback, J.D., Holland, L.A., Schroeder, J., Thomas, S.H., Beacham, J.M., Handon, S.F., Paes-Takahashi, V.S., Vieira, P. 2019. Meloidogyne aegracyperi n. sp. (Nematoda: Meloidogynidae), a root-knot nematode parasitizing yellow and purple nutsedge in New Mexico. J. Nematology 51:DOI: 10.21307/jofnem-2019-07