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Description of Meloidoderita salina sp. n. (Nematoda, Sphaeronematidae) from a micro-tidal salt marsh at Mont-Saint-Michel Bay in France

(2012) ZOOKEYS. p.1-26
Author
Organization
Abstract
Meloidoderita salina sp. n. is described and illustrated from the halophytic plant Atriplex portulacoides L. (sea purslane) growing in a micro-tidal salt marsh in the Mont-Saint-Michel Bay in France. This new species is the first member of Meloidoderita Poghossian, 1966 collected from a saline environment, and is characterized by the following features: sedentary mature females having a small swollen body with a clear posterior protuberance; slightly dorsally curved stylet, 19.9 mu m long, with posteriorly sloping knobs; neck region irregular in shape and twisted; well developed secretory-excretory (S-E) pore, with markedly sclerotized S-E duct running posteriorly; prominent uterus bordered by a thick hyaline wall and filled with eggs. The adult female transforms into a cystoid. Eggs are deposited in both egg-mass and cystoid. Cystoids of Meloidoderita salina sp. n. display a unique sub-cuticular hexagonal beaded pattern. Male without stylet, pharyngeal region degenerated, S-E duct prominent, deirids small, developed testis 97.5 mu m long, spicules 18.4 mu m long, cloacal opening ventrally protruded, small phasmids posterior to cloaca opening and situated at 5.9 (3.2-7.7) mu m from tail end, and conical tail ending in a rounded terminus marked with one (rarely two) ventrally positioned mucro. Additionally, some young males of the new species were observed enveloped in the last J2 cuticle. Second-stage juvenile body 470 mu m long, with a 16.4 mu m long stylet, prominent rounded knobs set off from the shaft, hemizonid anterior and adjacent to S-E pore, small deirids located just above S-E pore level, genital primordium located at 68-77% of body length, phasmids small and located at about 19 mu m from tail tip, and tail 38.7 mu m long, tapering to finely pointed terminus with a finger-like projection. Phylogenetic analyses based on the nearly full length small subunit ribosomal DNA sequences of Meloidoderita salina sp. n. revealed a close relationship of the new species with Sphaeronema alni Turkina & Chizhov, 1986 and placed these two species sister to the rest of Criconematina.
Keywords
cystoid, Atriplex portulacoides, halophyte, hexagonal, morphology, morphometrics, nematode, new species, sea purslane, SEM, SSU rDNA, taxonomy, ATRIPLEX-PORTULACOIDES L., ROOT-KNOT NEMATODE, FAMILY HETERODERIDAE, GENE-SEQUENCES, RIBOSOMAL-RNA, MIXED MODELS, TYLENCHIDA, TYLENCHOIDEA, CRICONEMATIDAE, TYLENCHULIDAE

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MLA
Ashrafi, Samad, et al. “Description of Meloidoderita Salina Sp. n. (Nematoda, Sphaeronematidae) from a Micro-Tidal Salt Marsh at Mont-Saint-Michel Bay in France.” ZOOKEYS, no. 249, 2012, pp. 1–26, doi:10.3897/zookeys.249.4138.
APA
Ashrafi, S., Mugniéry, D., van Heese, E. Y., van Aelst, A. C., Helder, J., & Karssen, G. (2012). Description of Meloidoderita salina sp. n. (Nematoda, Sphaeronematidae) from a micro-tidal salt marsh at Mont-Saint-Michel Bay in France. ZOOKEYS, (249), 1–26. https://doi.org/10.3897/zookeys.249.4138
Chicago author-date
Ashrafi, Samad, Didier Mugniéry, Evelyn YJ van Heese, Adriaan C van Aelst, Johannes Helder, and Gerrit Karssen. 2012. “Description of Meloidoderita Salina Sp. n. (Nematoda, Sphaeronematidae) from a Micro-Tidal Salt Marsh at Mont-Saint-Michel Bay in France.” ZOOKEYS, no. 249: 1–26. https://doi.org/10.3897/zookeys.249.4138.
Chicago author-date (all authors)
Ashrafi, Samad, Didier Mugniéry, Evelyn YJ van Heese, Adriaan C van Aelst, Johannes Helder, and Gerrit Karssen. 2012. “Description of Meloidoderita Salina Sp. n. (Nematoda, Sphaeronematidae) from a Micro-Tidal Salt Marsh at Mont-Saint-Michel Bay in France.” ZOOKEYS (249): 1–26. doi:10.3897/zookeys.249.4138.
Vancouver
1.
Ashrafi S, Mugniéry D, van Heese EY, van Aelst AC, Helder J, Karssen G. Description of Meloidoderita salina sp. n. (Nematoda, Sphaeronematidae) from a micro-tidal salt marsh at Mont-Saint-Michel Bay in France. ZOOKEYS. 2012;(249):1–26.
IEEE
[1]
S. Ashrafi, D. Mugniéry, E. Y. van Heese, A. C. van Aelst, J. Helder, and G. Karssen, “Description of Meloidoderita salina sp. n. (Nematoda, Sphaeronematidae) from a micro-tidal salt marsh at Mont-Saint-Michel Bay in France,” ZOOKEYS, no. 249, pp. 1–26, 2012.
@article{3231393,
  abstract     = {{Meloidoderita salina sp. n. is described and illustrated from the halophytic plant Atriplex portulacoides L. (sea purslane) growing in a micro-tidal salt marsh in the Mont-Saint-Michel Bay in France. This new species is the first member of Meloidoderita Poghossian, 1966 collected from a saline environment, and is characterized by the following features: sedentary mature females having a small swollen body with a clear posterior protuberance; slightly dorsally curved stylet, 19.9 mu m long, with posteriorly sloping knobs; neck region irregular in shape and twisted; well developed secretory-excretory (S-E) pore, with markedly sclerotized S-E duct running posteriorly; prominent uterus bordered by a thick hyaline wall and filled with eggs. The adult female transforms into a cystoid. Eggs are deposited in both egg-mass and cystoid. Cystoids of Meloidoderita salina sp. n. display a unique sub-cuticular hexagonal beaded pattern. 
Male without stylet, pharyngeal region degenerated, S-E duct prominent, deirids small, developed testis 97.5 mu m long, spicules 18.4 mu m long, cloacal opening ventrally protruded, small phasmids posterior to cloaca opening and situated at 5.9 (3.2-7.7) mu m from tail end, and conical tail ending in a rounded terminus marked with one (rarely two) ventrally positioned mucro. Additionally, some young males of the new species were observed enveloped in the last J2 cuticle. Second-stage juvenile body 470 mu m long, with a 16.4 mu m long stylet, prominent rounded knobs set off from the shaft, hemizonid anterior and adjacent to S-E pore, small deirids located just above S-E pore level, genital primordium located at 68-77% of body length, phasmids small and located at about 19 mu m from tail tip, and tail 38.7 mu m long, tapering to finely pointed terminus with a finger-like projection. Phylogenetic analyses based on the nearly full length small subunit ribosomal DNA sequences of Meloidoderita salina sp. n. revealed a close relationship of the new species with Sphaeronema alni Turkina & Chizhov, 1986 and placed these two species sister to the rest of Criconematina.}},
  author       = {{Ashrafi, Samad and Mugniéry, Didier and van Heese, Evelyn YJ and van Aelst, Adriaan C and Helder, Johannes and Karssen, Gerrit}},
  issn         = {{1313-2989}},
  journal      = {{ZOOKEYS}},
  keywords     = {{cystoid,Atriplex portulacoides,halophyte,hexagonal,morphology,morphometrics,nematode,new species,sea purslane,SEM,SSU rDNA,taxonomy,ATRIPLEX-PORTULACOIDES L.,ROOT-KNOT NEMATODE,FAMILY HETERODERIDAE,GENE-SEQUENCES,RIBOSOMAL-RNA,MIXED MODELS,TYLENCHIDA,TYLENCHOIDEA,CRICONEMATIDAE,TYLENCHULIDAE}},
  language     = {{eng}},
  number       = {{249}},
  pages        = {{1--26}},
  title        = {{Description of Meloidoderita salina sp. n. (Nematoda, Sphaeronematidae) from a micro-tidal salt marsh at Mont-Saint-Michel Bay in France}},
  url          = {{http://dx.doi.org/10.3897/zookeys.249.4138}},
  year         = {{2012}},
}

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