Journals Information
Universal Journal of Agricultural Research Vol. 11(3), pp. 615 - 631
DOI: 10.13189/ujar.2023.110312
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Steinernema mictlani n. sp. (Rhabditida: Steinernematidae) Recovered from Sugar Cane Plantations in Mexico
Vargas-Madriz Haidel 1, Alatorre-Rosas Raquel 2, Cid Del Prado-Vera Ignacio 2, Silva-Rojas Hilda Victoria 2, Patricia S. Stock 3, Hern谩ndez-Rosas Francisco 4, Azuara-Dom铆nguez Ausencio 5, Grifaldo-Alc谩ntara Pedro Fabian 1,*
1 Department of Agricultural Production, University Center of the South Coast, University of Guadalajara, M茅xico
2 College of Postgraduates, Campus Montecillo, M茅xico
3 College of Agriculture, California State University Chico, United States
4 College of Postgraduates, Campus C贸rdoba, M茅xico
5 National Technological of M茅xico/I.T. of Cd. Victoria, M茅xico
ABSTRACT
A new species of Steinernema collected in sugarcane crops in the state of Veracruz, Mexico, is described. This species is characterized by presenting infective juveniles (JI) with "horned" labial papillae, a trait shared with the species of phylogenetic group IV (S. bicornutum-S. ceratophorum-S. riobrave). The body length of the JI is 498 碌m, and a width of 27 碌m. The cuticle presents transverse striae throughout the entire body, lateral field with a maximum number of 8 incisures. A characteristic that separates this species from the group IV species is the presence of small anastomoses located after the excretory pore until before the beginning of the anus, in the ventral region of the body. First generation males have a body length of 1392 碌m; a tail with 11 pairs of genital papillae and 1 independent pre-cloacal papillae, as well as a single ventral papillae anterior to the cloaca. A characteristic for the second generation males is the presence of a caudal spine in the terminal part. The tail of the first generation females has a mucron and a body length of 6954 碌m with the vulva located at 60%. Among the biological data of this species, the presence of a single generation of adults stands out when the nematodes are reared in vivo between 30-35℃. In addition, the JI presents an emergency six days after infection at this same temperature. Nematodes produce two generations of adults when reared in vivo at temperatures ranging from 22 to 25℃. The emergence of the JI at this same temperature occurs 11 days after infection. This nematode can be separated from other species described by morphological characters and phylogenetic analysis of the ribosomal genes ITS and 28S, continuously with a mitochondrial gene (12S), awarding this nematode as a new species and as a member of group IV and close to the species S. riobrave.
KEYWORDS
Taxonomy, Phylogeny, Group IV, Entomopathogenic nematodes, New Species, Sugarcane
Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Vargas-Madriz Haidel , Alatorre-Rosas Raquel , Cid Del Prado-Vera Ignacio , Silva-Rojas Hilda Victoria , Patricia S. Stock , Hern谩ndez-Rosas Francisco , Azuara-Dom铆nguez Ausencio , Grifaldo-Alc谩ntara Pedro Fabian , "Steinernema mictlani n. sp. (Rhabditida: Steinernematidae) Recovered from Sugar Cane Plantations in Mexico," Universal Journal of Agricultural Research, Vol. 11, No. 3, pp. 615 - 631, 2023. DOI: 10.13189/ujar.2023.110312.
(b). APA Format:
Vargas-Madriz Haidel , Alatorre-Rosas Raquel , Cid Del Prado-Vera Ignacio , Silva-Rojas Hilda Victoria , Patricia S. Stock , Hern谩ndez-Rosas Francisco , Azuara-Dom铆nguez Ausencio , Grifaldo-Alc谩ntara Pedro Fabian (2023). Steinernema mictlani n. sp. (Rhabditida: Steinernematidae) Recovered from Sugar Cane Plantations in Mexico. Universal Journal of Agricultural Research, 11(3), 615 - 631. DOI: 10.13189/ujar.2023.110312.