{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T08:03:16Z","timestamp":1777622596573,"version":"3.51.4"},"reference-count":46,"publisher":"Walter de Gruyter GmbH","issue":"1","license":[{"start":{"date-parts":[[2020,1,1]],"date-time":"2020-01-01T00:00:00Z","timestamp":1577836800000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,1,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    The tea plant is native to China; the country has the greatest tea production areas in the world. In an attempt to investigate the nematode biodiversity associated with the tea plantations of Hangzhou, Zhejiang Province, a population of stunt nematode was detected. This group of nematodes is comprised of migratory ecto-parasites of roots and can subsist on a variety of host plants. Therefore, the detected population was studied carefully using the integrative taxonomy approach and identified as a new species of genus\n                    <jats:italic>Geocenamus<\/jats:italic>\n                    .\n                    <jats:italic>Geocenamus chengi<\/jats:italic>\n                    n. sp. can be characterized by females having six incisures in the lateral field; labial region is dome shaped and slightly offset from the rest of the body having four to five annuli; head framework is weakly developed; deirids are absent; excretory pore is located at the anterior region of basal pharyngeal bulb. Under SEM, the vulva is a transverse slit, vulval lips are elongated and ellipsoidal with epiptygma. The tail is annulated, elongated, and conical having bluntly pointed tip and a terminal hyaline region that forms 21 to 33% of the tail length. Spicule is 22 to 25\u2009\u03bcm long, gubernaculum is saucer shaped; bursa is crenated covering the tail until the hyaline tail region. Morphologically, the species is close to\n                    <jats:italic>G. circellus<\/jats:italic>\n                    ,\n                    <jats:italic>G. joctus<\/jats:italic>\n                    ,\n                    <jats:italic>G. loofi<\/jats:italic>\n                    ,\n                    <jats:italic>G. ordinarius<\/jats:italic>\n                    ,\n                    <jats:italic>G. processus<\/jats:italic>\n                    ,\n                    <jats:italic>G. tetyllus<\/jats:italic>\n                    , and\n                    <jats:italic>G. tortilis<\/jats:italic>\n                    . Phylogenetic relationships of the new species based on D2-D3 expansion domains of 28\u2009S, ITS, and 18\u2009S rRNA genes indicated that\n                    <jats:italic>G. chengi<\/jats:italic>\n                    n. sp. clustered in a separate clade with\n                    <jats:italic>G. vietnamensis<\/jats:italic>\n                    .\n                  <\/jats:p>","DOI":"10.21307\/jofnem-2020-042","type":"journal-article","created":{"date-parts":[[2020,4,16]],"date-time":"2020-04-16T10:00:09Z","timestamp":1587031209000},"page":"1-13","source":"Crossref","is-referenced-by-count":1,"title":["A new stunt nematode,\n                    <i>Geocenamus chengi<\/i>\n                    n. sp. (Nematoda: Merliniinae) in the rhizosphere of tea (\n                    <i>Camellia sinensis<\/i>\n                    ) from Zhejiang Province, China"],"prefix":"10.2478","volume":"52","author":[{"given":"Munawar","family":"Maria","sequence":"first","affiliation":[{"name":"Laboratory of Plant Nematology, Institute of Biotechnology, College of Agriculture & Biotechnology, Zhejiang University , Hangzhou , Zhejiang , P.R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wentao","family":"Miao","sequence":"additional","affiliation":[{"name":"Laboratory of Plant Nematology, Institute of Biotechnology, College of Agriculture & Biotechnology, Zhejiang University , Hangzhou , Zhejiang , P.R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pablo","family":"Castillo","sequence":"additional","affiliation":[{"name":"Institute for Sustainable Agriculture (IAS), Spanish National Research Council (CSIC), Campus de Excelencia Internacional Agroalimentario , ceiA3, Avenida Men\u00e9ndez Pidal s\/n, 14004 C\u00f3rdoba , Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jingwu","family":"Zheng","sequence":"additional","affiliation":[{"name":"Laboratory of Plant Nematology, Institute of Biotechnology, College of Agriculture & Biotechnology, Zhejiang University , Hangzhou , Zhejiang , P.R. China"},{"name":"Ministry of Agriculture Key Lab of\u00a0Molecular Biology of Crop Pathogens and Insects , Hangzhou\u00a0 , P. R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"374","published-online":{"date-parts":[[2020,4,16]]},"reference":[{"key":"2026042818381689856_j_jofnem-2020-042_ref_001","doi-asserted-by":"crossref","unstructured":"Anderson, R. V. and Ebsary, B. A. 1982. Canadian species of Merlinius Siddiqi, 1970 and a diagnosis and description for Mulveyotus hyalacus n. gen., n. sp. (Nematoda: Tylenchorhynchidae). Canadian Journal of Zoology 60:521\u2013529.","DOI":"10.1139\/z82-078"},{"key":"2026042818381689856_j_jofnem-2020-042_ref_002","unstructured":"Andr\u00e1ssy, I. 1977. Tylenchus davainei. C.I.H. Descriptions of Plant-Parasitic Nematodes, Set 7, No. 97 Commonwealth Agricultural Bureaux, Farnham Royal."},{"key":"2026042818381689856_j_jofnem-2020-042_ref_003","unstructured":"Andr\u00e1ssy, I. 2007. Free-living nematodes of Hungary (Nematoda errantia). Vol. II. Hungarian Natural History Museum. 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