Redescriptions are given for Mesocriconema surinamense (De Grisse & Maas, 1970) Loof & De Grisse, 1989, associated with Dicorynia guianensis Amshoff and Rotylenchus caudaphasmidius Sher, 1965 associated with a species of Aspidosperma Martius & Zuccharini in a French Guiana rain forest. These are new records for that country. Males of M. surinamense are described for the first time and are characterized by a squared labial disc and a comparatively small bursa. Discocriconemella heynsi Van den Berg & Marais, 1995 is proposed as a synonym of M. surinamense. Discocriconemella limitanea (Luc, 1959) De Grisse & Loof, 1965 is reported from soil around D. guianensis.
重新描述了Mesocriconema surinamense (De Grisse & Maas, 1970)。Loof & De Grisse, 1989，与Dicorynia guianensis Amshoff和Rotylenchus caudaphasmidius Sher有关，1965，与法属圭亚那雨林中的一种Aspidosperma Martius和Zuccharini有关。这是那个国家的新纪录。本文首次描述了苏里纳氏乳杆菌的雄性，其特征是唇盘呈方形，囊相对较小。Discocriconemella heynsi Van den Berg & Marais, 1995被认为是M. surinamense的同义词。De Grisse & Loof, 1965报道了在d.g anensis周围的土壤中发现的限制性Discocriconemella limitanea (Luc, 1959)。
{"title":"New Records and Descriptions of Plant Nematodes From Rain Forest Soil in French Guiana, With a First Description of Males of Mesocriconema Surinamense (De Grisse & Maas, 1970) Loof & De Grisse, 1989 (Tylenchida: Nemata)","authors":"E. Berg, P. Quénéhervé, L. Tiedt","doi":"10.1163/005025997X00085","DOIUrl":"https://doi.org/10.1163/005025997X00085","url":null,"abstract":"Redescriptions are given for Mesocriconema surinamense (De Grisse & Maas, 1970) Loof & De Grisse, 1989, associated with Dicorynia guianensis Amshoff and Rotylenchus caudaphasmidius Sher, 1965 associated with a species of Aspidosperma Martius & Zuccharini in a French Guiana rain forest. These are new records for that country. Males of M. surinamense are described for the first time and are characterized by a squared labial disc and a comparatively small bursa. Discocriconemella heynsi Van den Berg & Marais, 1995 is proposed as a synonym of M. surinamense. Discocriconemella limitanea (Luc, 1959) De Grisse & Loof, 1965 is reported from soil around D. guianensis.","PeriodicalId":18988,"journal":{"name":"Nematologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1997-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86403307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Variability of Tylenchus arcuatus, T. elegans (n. syn. T. ritae and T. capitatus), T. davainei (n. syn. T. martini) and T. rex are discussed. T. neominimus and T. parangalici are considered species inquirendae. Stylet length, areolation of lateral field, ratio "a" and body shape upon relaxation are reliable characters for Tylenchus species differentiation. Tylenchus stachys sp. n., from Australia, is characterized by stylet 14.5-16.5 μm, outer bands of lateral field areolated on entire body, body thin and slightly arcuate.
讨论了弓形暴龙、elegans (n. syn. T. ritae和T. capitatus)、T. davainei (n. syn. T. martini)和T. rex的变异性。新蠓和副蠓被认为是调查科的种。柱头长度、侧场光晕、“a”比和松弛后的体形是判别柱头草种类的可靠指标。竹竹属(Tylenchus stachys sp. n.)，产自澳大利亚，花柱长14.5 ~ 16.5 μm，外侧野外带在全身呈环状，体细，微弓形。
{"title":"Comments on some known species of the genus Tylenchus and description of Tylenchus stachys sp. n. (Nematoda:Tylenchidae).","authors":"M. Brzeski","doi":"10.1163/004525996X00019","DOIUrl":"https://doi.org/10.1163/004525996X00019","url":null,"abstract":"Variability of Tylenchus arcuatus, T. elegans (n. syn. T. ritae and T. capitatus), T. davainei (n. syn. T. martini) and T. rex are discussed. T. neominimus and T. parangalici are considered species inquirendae. Stylet length, areolation of lateral field, ratio \"a\" and body shape upon relaxation are reliable characters for Tylenchus species differentiation. Tylenchus stachys sp. n., from Australia, is characterized by stylet 14.5-16.5 μm, outer bands of lateral field areolated on entire body, body thin and slightly arcuate.","PeriodicalId":18988,"journal":{"name":"Nematologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89046129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Heterodera litoralis sp.n. (Ncmatoda: Heteroderidae) is described from austral glasswort, Sarcocornia quinqueflora (Ung.-Sternb.) A.J. Scott (Chenopodiaceae), a coastal succulent common in Australia, New Caledonia and New Zealand. The new species resembles Heterodera turcomanica in the orientation of the subterminal fcnestrae on the vulval cone. H. turcomanica is a species in the H. avenae group. The long vulval slit of about 40 μm excludes the new species from the H. avenae group. Among the Heterodera species with a long vulval slit H. litoralis most closely resembles H. humuli (cysts bifenestrate, vulval bridge wide, vulval slit long, underbridge present, bullae lacking). H. litoralis differs from H. humuli by the longer, more slender cysts and the longer stylet of the second-stage juveniles.
{"title":"Heterodera litoralis sp.n. (Nematoda: Heteroderidae) from Austral glasswort, Sarcocornia quinqueflora, in New Zealand","authors":"W. M. Wouts, D. Sturhan","doi":"10.1163/187529296X00067","DOIUrl":"https://doi.org/10.1163/187529296X00067","url":null,"abstract":"Heterodera litoralis sp.n. (Ncmatoda: Heteroderidae) is described from austral glasswort, Sarcocornia quinqueflora (Ung.-Sternb.) A.J. Scott (Chenopodiaceae), a coastal succulent common in Australia, New Caledonia and New Zealand. The new species resembles Heterodera turcomanica in the orientation of the subterminal fcnestrae on the vulval cone. H. turcomanica is a species in the H. avenae group. The long vulval slit of about 40 μm excludes the new species from the H. avenae group. Among the Heterodera species with a long vulval slit H. litoralis most closely resembles H. humuli (cysts bifenestrate, vulval bridge wide, vulval slit long, underbridge present, bullae lacking). H. litoralis differs from H. humuli by the longer, more slender cysts and the longer stylet of the second-stage juveniles.","PeriodicalId":18988,"journal":{"name":"Nematologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90213540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Diplogaster coprophila is specifically phoretic on Sepsidae, Sphaeroceridae (Diptera) and also Cercyon species (Coleoptera, Hydrophilidae). Dauerlarvae of D. coprophila were present on 59% of sepsids caught with emergence traps and 13% of those that landed on a cow pat in the field. Both sexes of the flies were infested. In laboratory experiments, using Sepsis punctum as carriers, dauerlarvae were found to aggregate on the fly pupae where they wait motionless until the metamorphosis of the fly is completed. At eclosion, the dauerlarvae move to the abdomen of the fly and enter the genital opening; they are present in the reproductive system of female and male sepsids. Dauerlarvae are transmitted from male to female during copulation. They cannot leave the carriers by their own volition but are placed in the dung by the female fly during oviposition. Phoresy is physiologically obligatory for D. coprophila. Dauerlarvae fail to develop unless they spend some time on a carrier.
{"title":"The Phoretic Association of Diplogaster Coprophila Sudhaus & Rehfeld, 1990 (Diplogastridae) From Cow Dung With Its Carriers, in Particular Flies of the Family Sepsidae","authors":"K. Kiontke","doi":"10.1163/004425996X00083","DOIUrl":"https://doi.org/10.1163/004425996X00083","url":null,"abstract":"Diplogaster coprophila is specifically phoretic on Sepsidae, Sphaeroceridae (Diptera) and also Cercyon species (Coleoptera, Hydrophilidae). Dauerlarvae of D. coprophila were present on 59% of sepsids caught with emergence traps and 13% of those that landed on a cow pat in the field. Both sexes of the flies were infested. In laboratory experiments, using Sepsis punctum as carriers, dauerlarvae were found to aggregate on the fly pupae where they wait motionless until the metamorphosis of the fly is completed. At eclosion, the dauerlarvae move to the abdomen of the fly and enter the genital opening; they are present in the reproductive system of female and male sepsids. Dauerlarvae are transmitted from male to female during copulation. They cannot leave the carriers by their own volition but are placed in the dung by the female fly during oviposition. Phoresy is physiologically obligatory for D. coprophila. Dauerlarvae fail to develop unless they spend some time on a carrier.","PeriodicalId":18988,"journal":{"name":"Nematologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88931361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Z. KHAN & M. S. JAIRAJPURI: The Actinolaims: Predatory Soil Nematodes from India. Aligarh Muslim University, Aligarh, India, 1994. 137 pp., 26 figs","authors":"E. Geraert","doi":"10.1163/004625996X00108","DOIUrl":"https://doi.org/10.1163/004625996X00108","url":null,"abstract":"","PeriodicalId":18988,"journal":{"name":"Nematologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90254151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eubostrichus topiarius sp. n. is a new species of the small subfamily Stilbonematinae, whose members are obligatorily associated with ectosymbiotic bacteria. It is recorded from the Bay of Vestar (northern Adriatic Sea) where it inhabits the interstitial space of a moderately sorted, coarse subtidal sand. The new species is much larger than, and of different proportions from the previously described species. The unispiral amphid is comparatively small and close to the anterior end; the cephalic region shows circles of 6 inner and 6 outer labial sensillae; the 4 cephalic sensillae are elongated; the anterior circle of 8 subcephalic setae inserts at the posterior margin of the amphid; the females are larger than the males showing up to 7 eggs in their uterus. This is a contribution to a revision of a very interesting genus to which a number of inadequately described specimens have been assigned.
{"title":"Eubostrichus topiarius sp. n., a new free-living, marine species of Stilbonematinae (Nematoda : Desmodoridae) from a shallow subtidal sand bottom","authors":"E. Berger, W. Urbancik, J. Ott","doi":"10.1163/004625996X00027","DOIUrl":"https://doi.org/10.1163/004625996X00027","url":null,"abstract":"Eubostrichus topiarius sp. n. is a new species of the small subfamily Stilbonematinae, whose members are obligatorily associated with ectosymbiotic bacteria. It is recorded from the Bay of Vestar (northern Adriatic Sea) where it inhabits the interstitial space of a moderately sorted, coarse subtidal sand. The new species is much larger than, and of different proportions from the previously described species. The unispiral amphid is comparatively small and close to the anterior end; the cephalic region shows circles of 6 inner and 6 outer labial sensillae; the 4 cephalic sensillae are elongated; the anterior circle of 8 subcephalic setae inserts at the posterior margin of the amphid; the females are larger than the males showing up to 7 eggs in their uterus. This is a contribution to a revision of a very interesting genus to which a number of inadequately described specimens have been assigned.","PeriodicalId":18988,"journal":{"name":"Nematologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89448592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The genus Eutylenchus is diagnosed and the usefulness of various morphological characters for species differentiation is discussed. A key for identification of known species is provided. Eutylenchus africanus and E. excretorius are redescribed.
{"title":"On the Genus Eutylenchus Cobb, 1913 (Nematoda: Tylenchidae)","authors":"M. Brzeski","doi":"10.1163/187529296X00012","DOIUrl":"https://doi.org/10.1163/187529296X00012","url":null,"abstract":"The genus Eutylenchus is diagnosed and the usefulness of various morphological characters for species differentiation is discussed. A key for identification of known species is provided. Eutylenchus africanus and E. excretorius are redescribed.","PeriodicalId":18988,"journal":{"name":"Nematologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87801339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
DNA extracts from thirteen populations of Radoplaolus similis, collected previously from roots of various hosts at different locations around the world, and one population each of R. bridgei and R. citri, both collected in Indonesia, were compared using the polymerase chain reaction based method of random amplified polymorphic DNA (RAPD-PCR). Hierarchical cluster analysis was applied to the data obtained from RAPD profiles. This arranged the fifteen populations into two clusters. It also highlighted the two populations of R. citri and R. bridgei which were genomically distinct from R. similis. The results are discussed in the context of the genomic divergence of the species R. similis and the genus Radopholus.
采用基于随机扩增多态性DNA (RAPD-PCR)的聚合酶链反应方法，比较了先前从世界各地不同寄主根系中采集的13个相似Radoplaolus (Radoplaolus similis)居群，以及在印度尼西亚采集的bridgei和R. citri各1个居群的DNA提取物。采用层次聚类分析方法对RAPD剖面数据进行分析。这将15个种群分成了两个集群。同时还强调了柑橘r.r e citri和桥桥r.r e bridgei两个居群与相似r.r e similis在基因组上的差异。这些结果是在物种相似和Radopholus属的基因组差异的背景下讨论的。
{"title":"Genomic diversity between Radopholus similis populations from around the world detected by RAPD-PCR analysis.","authors":"M. Hahn, P. Burrows, D. Wright","doi":"10.1163/004625996X00036","DOIUrl":"https://doi.org/10.1163/004625996X00036","url":null,"abstract":"DNA extracts from thirteen populations of Radoplaolus similis, collected previously from roots of various hosts at different locations around the world, and one population each of R. bridgei and R. citri, both collected in Indonesia, were compared using the polymerase chain reaction based method of random amplified polymorphic DNA (RAPD-PCR). Hierarchical cluster analysis was applied to the data obtained from RAPD profiles. This arranged the fifteen populations into two clusters. It also highlighted the two populations of R. citri and R. bridgei which were genomically distinct from R. similis. The results are discussed in the context of the genomic divergence of the species R. similis and the genus Radopholus.","PeriodicalId":18988,"journal":{"name":"Nematologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89071083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The present paper deals with the taxonomy of five species belonging to the genus Tylencholaimus de Man, 1876. Two of them are prodelphic: T. stecki Steiner, 1914 and T. vulvulatus Rahman, Jairajpuri, Ahmad & Ahmad, 1987; they are characterized by having perioral region not disc-like, anterior part of the pharynx expanding gradually to the basal bulb, and posterior genital branch more than two body widths long. The other three species are opisthodelphic: T. intermedius n. sp., T. gertii Kruger, 1965 and T. pakistanensis Timm, 1964. These five species are described and illustrated. Moreover, T. rossi Yeates, 1979 is transferred to Tantunema Siddiqi, 1979 as Tantunema rossi (Yeates, 1979) n. comb. Several species recently described or transferred to Tylencholaimus, and others considered species inquirendae are briefly discussed.
本文讨论了1876年属Tylencholaimus de Man的五个种的分类。其中两本是著作:T. stecki Steiner, 1914年和T. vulvulatus Rahman, Jairajpuri, Ahmad & Ahmad, 1987年;其特征是口周区域不呈盘状，咽前部逐渐扩张至基底球，生殖后支长度超过两体宽。其他3种为食性:T. intermedius n. sp.， T. gertii Kruger, 1965和T. pakistani Timm, 1964。对这五个物种进行了描述和图解。此外，T. rossi Yeates(1979)将Tantunema Siddiqi(1979)转译为Tantunema rossi (Yeates, 1979) n. comb。本文简要讨论了最近被描述或转移到Tylencholaimus的几个物种，以及其他被认为是inquirendae的物种。
{"title":"Revision of the genus Tylencholaimus de Man, 1876. Remaining species.","authors":"R. P. Santiago, A. Coomans","doi":"10.1163/004525996X00037","DOIUrl":"https://doi.org/10.1163/004525996X00037","url":null,"abstract":"The present paper deals with the taxonomy of five species belonging to the genus Tylencholaimus de Man, 1876. Two of them are prodelphic: T. stecki Steiner, 1914 and T. vulvulatus Rahman, Jairajpuri, Ahmad & Ahmad, 1987; they are characterized by having perioral region not disc-like, anterior part of the pharynx expanding gradually to the basal bulb, and posterior genital branch more than two body widths long. The other three species are opisthodelphic: T. intermedius n. sp., T. gertii Kruger, 1965 and T. pakistanensis Timm, 1964. These five species are described and illustrated. Moreover, T. rossi Yeates, 1979 is transferred to Tantunema Siddiqi, 1979 as Tantunema rossi (Yeates, 1979) n. comb. Several species recently described or transferred to Tylencholaimus, and others considered species inquirendae are briefly discussed.","PeriodicalId":18988,"journal":{"name":"Nematologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81189665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tylencholaimus zeelandicus de Man, 1876, the position of which in the genus Tylencholaimus is doubtful from the original description and illustrations, is redescribed from topotypes and transferred to Doryllium. D. labiatum Andrassy, 1987 is identical with it. A neotype is designated and the differences from the other species of Doryllium are discussed.
Tylencholaimus zeelandicus de Man, 1876年，其在Tylencholaimus属中的位置从原始描述和插图来看是有疑问的，从地形模型重新描述并转移到Doryllium。D. labiatum Andrassy, 1987与之相同。指出了一种新类型，并讨论了其与其它种类的区别。
{"title":"On the taxonomic position of Tylencholaimus zeelandicus de Man, 1876 (Nematoda: Dorylaimida).","authors":"P. Loof","doi":"10.1163/004525996X00055","DOIUrl":"https://doi.org/10.1163/004525996X00055","url":null,"abstract":"Tylencholaimus zeelandicus de Man, 1876, the position of which in the genus Tylencholaimus is doubtful from the original description and illustrations, is redescribed from topotypes and transferred to Doryllium. D. labiatum Andrassy, 1987 is identical with it. A neotype is designated and the differences from the other species of Doryllium are discussed.","PeriodicalId":18988,"journal":{"name":"Nematologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88862411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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