Nematology最新文献_第9页

Steinernema indicum n. sp., a new entomopathogenic nematode (Nematoda: Steinernematidae) from India 印度一种新的昆虫病原线虫（线虫目：印度线虫科）

IF 1.2 4区生物学

Nematology Pub Date : 2023-06-01 DOI: 10.1163/15685411-bja10258

Jagadeesh Patil, V. Linga, P. Mhatre, M. Gowda, V. Rangasamy, V. Půža

{"title":"Steinernema indicum n. sp., a new entomopathogenic nematode (Nematoda: Steinernematidae) from India","authors":"Jagadeesh Patil, V. Linga, P. Mhatre, M. Gowda, V. Rangasamy, V. Půža","doi":"10.1163/15685411-bja10258","DOIUrl":"https://doi.org/10.1163/15685411-bja10258","url":null,"abstract":"\u0000A new species of entomopathogenic nematode, Steinernema indicum n. sp., was isolated from a coconut palm (Cocos nucifera) field in the district of Udupi, Karnataka, India. The infective juveniles (IJ) of S. indicum n. sp. possess a body length of 1043 (869-1172) μm. The lateral fields are formed by eight equally spaced and developed ridges (nine incisures) in the mid-body region, giving the formula 3, 8, 7, 5. The excretory pore is located posterior to the mid-pharynx region (D% = 63), and the hyaline region occupies ca half of the tail length. The first-generation males are characterised by very short spicules 66 (60-70) μm long. The male spicules are moderately curved with a sharp tip and are golden-brown in colour with the manubrium elongate and with a length to width ratio of 1.92:1. There are 11 pairs of genital papillae plus a single midventral papilla located anterior to the cloacal region. The first-generation male of S. indicum n. sp. is characterised by the presence of a single dorsal postcloacal papilla, a typical diagnostic character that has not been reported from any other steinernematid species. The first-generation male tail has a short mucron present in ca 40% of specimens examined and a second-generation male tail showing a short mucron present in ca 65% of male specimens examined. The first and second-generation females possess a slightly protruding post-anal swelling. The new species is further characterised by sequences of the internal transcribed spacer (ITS) and partial 28S regions (D2-D3) of the ribosomal DNA (rDNA). Phylogenetic analyses confirm that S. indicum n. sp. belongs to the glaseri-group and, based on both ITS and D2D3 genes, showed that S. indicum n. sp. is a member of the karii clade.","PeriodicalId":18928,"journal":{"name":"Nematology","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49527507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Paraxonchium carmenae Peña-Santiago & Jiménez-Millán, 1986 revisited four decades later, with new insights into the phylogeny of the genus Paraxonchium Krall, 1958 (Dorylaimida) 四十年后，对Paraxonchium carmenae Peña-Santiago & Jiménez-Millán, 1986的重新审视，对Paraxonchium Krall属的系统发育有了新的认识，1958 (Dorylaimida)

IF 1.2 4区生物学

Nematology Pub Date : 2023-05-24 DOI: 10.1163/15685411-bja10257

R. Peña‐Santiago, M. García-Ruiz, G. Liébanas, J. Abolafia

引用次数: 0

Ficophagus annulatae n. sp. (Nematoda: Aphelenchoididae), an associate of Ficus annulata in China 环状榕蛾(线虫纲:环状榕蛾科)，中国环状榕蛾的副属

IF 1.2 4区生物学

Nematology Pub Date : 2023-05-24 DOI: 10.1163/15685411-bja10247

Yongsan Zeng, Dayuan Zhang, R. Giblin-Davis, J. Roberts

{"title":"Ficophagus annulatae n. sp. (Nematoda: Aphelenchoididae), an associate of Ficus annulata in China","authors":"Yongsan Zeng, Dayuan Zhang, R. Giblin-Davis, J. Roberts","doi":"10.1163/15685411-bja10247","DOIUrl":"https://doi.org/10.1163/15685411-bja10247","url":null,"abstract":"\u0000A new species of the genus Ficophagus was recovered from the syconia of Ficus annulata from Xishuangbanna, Yunnan province, China. It is described herein as Ficophagus annulatae n. sp. and is characterised by possessing the combined characters of a short PUS (9-18 μm or 0.3-0.6 VBD long), an excretory pore (EP) located at the level between stylet basal knobs and metacorpus, presence of crustaformeria, amoeboid sperm, three pairs of subventral papillae on the male tail (one pair just adcloacal (P2), one pair halfway between cloacal aperture and tail terminus (P3), and one pair near tail tip (P4)), rounded male tail tip without mucron, absence of gubernaculum and bow-shaped spicule with indistinct rostrum. Ficophagus annulatae n. sp. was differentiated from other sequenced species by the partial small subunit (SSU) rRNA gene and D2-D3 expansion segments of the large subunit (LSU) rRNA gene. Phylogenetic analysis with the LSU D2-D3 expansion segment sequence suggested that F. annulatae n. sp. is clustered in the same highly supported monophyletic clade with F. benjamina, F. curtipes and F. microcarpus. It differs morphologically from these species in EP position, spicule and uterus morphology, and some morphometric characters.","PeriodicalId":18928,"journal":{"name":"Nematology","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43935884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Bursaphelenchus ogawanus n. sp. isolated from bark material of Fagus japonica Maxim. from Japan 从日本法格斯树皮材料中分离得到的短柱线虫（Bursaphelenchus ogawanus n.sp.）。来自日本

IF 1.2 4区生物学

Nematology Pub Date : 2023-05-24 DOI: 10.1163/15685411-bja10252

N. Kanzaki, H. Masuya

引用次数: 0

A new plant-parasitic nematode species associated with coffee, Rotylenchus bunae n. sp. (Nematoda: Hoplolaimidae) from Jimma, Ethiopia 埃塞俄比亚吉马咖啡植物寄生线虫一新种(线虫纲:咖啡寄生线虫科)

IF 1.2 4区生物学

Nematology Pub Date : 2023-05-24 DOI: 10.1163/15685411-bja10256

Phougeishangbam Rolish Singh, A. Aseffa, A. Hajihassani, G. Karssen, W. Bert, Beira-Hailu Meressa

引用次数: 0

Mechanisms behind differential white grub host susceptibility to entomopathogenic nematodes 不同白蛴螬寄主对昆虫病原线虫敏感性的机制

IF 1.2 4区生物学

Nematology Pub Date : 2023-05-24 DOI: 10.1163/15685411-bja10253

A. Katumanyane, B. Slippers, M. Wondafrash, A. Malan, B. Hurley

{"title":"Mechanisms behind differential white grub host susceptibility to entomopathogenic nematodes","authors":"A. Katumanyane, B. Slippers, M. Wondafrash, A. Malan, B. Hurley","doi":"10.1163/15685411-bja10253","DOIUrl":"https://doi.org/10.1163/15685411-bja10253","url":null,"abstract":"\u0000Control of white grubs, the sporadic root-feeding larvae of scarabid beetles, is difficult due to their cryptic nature and resistance to chemical insecticides. Potential exists for the use of entomopathogenic nematodes (EPN) for such control. The successful infection of white grubs by EPN, however, is limited by the white grubs’ innate reduced susceptibility in form of behavioural, morphological and physiological defences. This study aimed to determine the different physiological defence mechanisms of white grubs against attack by EPN. The white grub species, Pegylis sommeri and Schizonycha affinis, which were previously found to have a low level of susceptibility to EPN, and Maladera sp. 4, which had previously shown a relative high level of susceptibility, were examined. The ability of the EPN to penetrate the white grubs and of the EPN symbiotic bacteria to grow inside the insect haemolymph, the encapsulation rates, as well as the nematode growth inside the insect haemolymph, were determined. The results showed that the ability of the nematodes to penetrate white grubs, the encapsulation rates and growth in the haemolymph varied between EPN and white grub species. The different species of the EPN symbiotic bacteria were able to grow in the haemolymph of all the white grub species tested. The results indicate that the white grub species investigated tended to resist the initial penetration of most of the EPN studied, thus avoiding infection.","PeriodicalId":18928,"journal":{"name":"Nematology","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44822898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A tribute to Professor Walter Traunspurger 向Walter Traunsburger教授致敬

IF 1.2 4区生物学

Nematology Pub Date : 2023-05-24 DOI: 10.1163/15685411-bja10251

N. Majdi, Hendrik Fueser, Marie-Theres Rauchschwalbe, Birgit Gansfort, Jana Uthoff, Bianca Kreuzinger-Janik, Christoph Ptatscheck, J. Schenk, S. Gehner, H. Spieth, Benjamin Wilden, S. Höss

{"title":"A tribute to Professor Walter Traunspurger","authors":"N. Majdi, Hendrik Fueser, Marie-Theres Rauchschwalbe, Birgit Gansfort, Jana Uthoff, Bianca Kreuzinger-Janik, Christoph Ptatscheck, J. Schenk, S. Gehner, H. Spieth, Benjamin Wilden, S. Höss","doi":"10.1163/15685411-bja10251","DOIUrl":"https://doi.org/10.1163/15685411-bja10251","url":null,"abstract":"\u0000With this tribute, we want to highlight Professor Walter Traunspurger’s achievements and contributions to education and research in the fields of nematology and ecology. Walter started to teach in 1998 in the Department of Animal Ecology at Bielefeld University (Germany) and completed his tenure in September 2022, a milestone in his career for which he deserves appreciation, although he is surely going to stay as enthusiastic and busy for many years to come. Over his 30 years of an outstanding academic career, he has supervised 22 Ph.D., 49 M.Sc. and 139 B.Sc. students. He has published over 200 research articles in leading zoological, ecological and ecotoxicological journals. Walter is one of the few living nematologists capable of identifying free-living freshwater nematodes to species level. However, his expertise and research interests are much broader with his biota-inclusive and trans-disciplinary approaches. For his students and colleagues, he has been an inexhaustible source of idealism, knowledge and lively experiences. The book, Ecology of freshwater nematodes, edited by Walter in 2021, provides a good overview of his recent research topics. Here, by summarising and sharing his main scientific accomplishments in this article, we hope that his story will inspire the next generation of nematologists and ecologists to continue his legacy and explore the promising avenues of research that he opened up during his productive scientific career.","PeriodicalId":18928,"journal":{"name":"Nematology","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47780756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aphelenchoides koreanus n. sp. (Tylenchina: Aphelenchoididae) found in packaging wood from South Korea 在韩国包装木材中发现的Aphelenchoides koreanus n.sp

IF 1.2 4区生物学

Nematology Pub Date : 2023-05-17 DOI: 10.1163/15685411-bja10245

J. Gu, Yiwu Fang, Xinxin Ma

引用次数: 0

Redescription of an insect-associated nematode, Reiterina typica (Stefański, 1922) Sudhaus, 2011 (Rhabditida: Rhabditidae) found in scarab grubs in Hungary 对在匈牙利圣甲虫幼虫中发现的一种与昆虫相关的线虫，典型线虫(Stefański, 1922) Sudhaus, 2011(横纹病目:横纹病科)的重新描述

IF 1.2 4区生物学

Nematology Pub Date : 2023-05-12 DOI: 10.1163/15685411-bja10249

Luca Eszter Balog, Mohammed Ahmed, J. K. Török, O. Holovachov

引用次数: 0

Morphological and molecular characterisation of Mulveyellus aizawlensis sp. n. (Nematoda: Iotonchinae) from Aizawl, Mizoram, India 印度米佐拉姆·艾扎沃的艾扎沃多叶线虫（线虫目：Iotonchinae）的形态和分子特征

IF 1.2 4区生物学

Nematology Pub Date : 2023-05-12 DOI: 10.1163/15685411-bja10250

Samandram Sushilkumar Singh, Phougeishangbam Rolish Singh, Sorokhaibam Mexico Singh, Mayanglambam Ojit Kumar Singh, N. M. Meitei

引用次数: 0