scholarly journals First report of the nematodes Filenchus orientalis and Hemicriconemoides californianus on faba bean in Iran

2016 ◽  
Vol 9 (1) ◽  
pp. 44-50
Author(s):  
S. Azimi ◽  
E. Mahdikhani-Moghadam ◽  
H. Rouhani ◽  
H. Rajabi Memari
Keyword(s):  
Body Length ◽  
Tail Length ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Morphometric Characters ◽  
Lateral Field ◽  
Stylet Length ◽  
First Time ◽  
Plant Parasitic ◽  
Iranian Populations

Summary During a survey in Iran, two known species of plant-parasitic nematodes of the families Tylenchidae and Criconematidae were reported for the first time. The morphological and morphometric characters of Iranian populations of the two recovered species are discussed and illustrated based on morphological and morphometrics data. Iranian population of Filenchus orientalis is characterized by having a 601-755μm body length, stylet length of 9.0-11.3 μm, lateral field with four incisures, tail length of 100-118 μm and males with 15-21 μm long spicules. Hemicriconemoides californianus population is characterized by having a body length of 430-550μm, lip region with two annuli, stylet length of 75-83μm and tail length of 20-28 μm. The morphological and morphometric characters of both species are in agreement with those in original descriptions.

scholarly journals The genus Basiria Siddiqi, 1959 (Nematoda: Tylenchidae) from Dezful region, Iran

2021 ◽  
Vol 13 (3) ◽  
pp. 18004-18010
Author(s):  
Manouchehr Hosseinvand ◽  
Ali Eskandari ◽  
Reza Ghaderi
Keyword(s):  
Body Length ◽  
Cephalic Region ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Morphometric Characters ◽  
Khuzestan Province ◽  
Basal Bulb ◽  
Southwestern Iran ◽  
First Time ◽  
Plant Parasitic

A survey was conducted during 2018 and 2019 in order to identify plant-parasitic nematodes of the genus Basiria in Dezful region of Khuzestan province, southwestern Iran.  Nematodes were extracted from the soil and root samples by using tray method, transferred to glycerin and mounted on permanent slides.  Nematodes were identified based on morphological and morphometric characters.  As a result, eight species including B. aberrans, B. duplexa, B. gracilis, B. jirians, B. tumida, B. graminophila, B. ritteri, and B. similis were identified; three species namely B. jirians, B. ritteri, and B. similis are here described and illustrated for the first time from Iran.  B. jirians is characterized by body length 445–535 µm, stylet 9.0–9.2 µm, cephalic region without annuli, DGO 2.0–2.5 µm, median bulb at anterior end of pharynx, basal bulb pyriform, spermatheca non offset and tail elongate conoid with pointed to filiform terminus.  B. ritteri can be characterized by body length 685–747 µm, stylet 10.5–11.5 µm, median bulb located at anterior half of pharynx, basal bulb cylindroid, spermatheca non offset and tail annulated and notched at tip.  B. similis is characterized by body length 644–736 µm, stylet 10.3–11 µm, DGO 8.9–10.5 µm, basal bulb cylindroid and tail clavate.

scholarly journals Two new species of plant parasitic nematodes Hirschmanniella bananae n.sp. (Nematoda: Pratylenchidae) and Scutellonema tanlamense n.sp. (Nematoda: Hoplolaimidae) associated with banana in Vienam

2017 ◽  
Vol 39 (3) ◽  
pp. 253-263
Author(s):  
Nguyen Ngoc Chau
Keyword(s):  
New Species ◽  
Body Length ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Tail Region ◽  
Lateral Field ◽  
African Populations ◽  
Two New Species ◽  
Stylet Length ◽  
Plant Parasitic

During investigation on the plant parasitic nematodes on bananas in North and Central provinces of Vietnam carried out in 1995 two new species were found, Hirschmanniella bananae n.sp. and Scutellonema tanlamese n.sp. Hirschmanniella bananae n.sp. is characterized by having 6 annuli in lip region, areolation of entire lateral field and presence of a mid-terminal mucro at the tail end. The new species is close to H. shamini Ahmad, 1972 but differs from H. shamini by longer body length in females (1450-1750 µm vs 1190-1360 mm), longer stylet longer (18-20.5 mm vs 16-19 mm) and longer spicule longer (28-29.5 mm vs 22-25 mm). Scutellonema tanlamese n.sp. is characterized by lip region with three annuli and numerous longitudinal ridges (18) in basal annulus and structure of lateral field at the tail region with inner lines extending to tail terminus. The new species is closest to S. brachyurus type B (African populations) described by Van Den Berg et al. in 2013 but can be distinguished by body length shorter (643-708 µm vs 777-820 µm), stylet length shorter ((24.5-26.5 µm vs 28-29.5 mm, and also by structure of lateral field with two inner lines going throught at tail region and vulval edge distinct with epiptygma appearing double and folded into vagina.   Citation: Nguyen Ngoc Chau, 2017. Two new species of plant parasitic nematodes Hirschmanniella bananae n.sp. (Nematoda: Pratylenchidae) and Scutellonema tanlamense n.sp. (Nematoda: Hoplolaimidae) associated with banana in Vienam. Tap chi Sinh hoc, 39(3): 253-263. DOI: 10.15625/0866-7160/v39n3.10665. *Corresponding author: [email protected] Received 19 August 2017, accepted 12 September 2017

First record of the genus Discotylenchus Siddiqi, 1980 (Nematoda: Tylenchidae) from Iran, with description of one new and data on two known species

Zootaxa ◽  
2012 ◽  
Vol 3493 (1) ◽  
pp. 72
Author(s):  
RAZIEH GHAEMI ◽  
EBRAHIM POURJAM ◽  
MOHAMMAD REZA ATIGHI ◽  
MAJID PEDRAM ◽  
GERRIT KARSSEN
Keyword(s):  
Tail Length ◽  
Original Description ◽  
First Record ◽  
Morphological Characters ◽  
Morphometric Characters ◽  
Lateral Field ◽  
Original Population ◽  
Stylet Length ◽  
First Time ◽  
Labial Disc

The genus Discotylenchus is reported for the first time from Iran. Discotylenchus iranicus n. sp. is described and illustratedbased on morphological and morphometric characters. The new species is characterized by a combination of the followingmorphological features: lip region continuous and smooth, tapering to an offset prominent labial disc, lateral field withfour incisures, stylet length of 14–15μm, vulva position at 70.8–76.5 %, tail length of 81–100μm, conoid with a roundedtip and presence of males. The Iranian population of D. brevicaudatus shows a wider morphometric range compared tothe original description and the male of this species is described for the first time. The morphological characters and range of morphometric data of D. discretus are in full agreement with the original population.

scholarly journals Five Species of Plant Parasitic Nematodes (Order: Tylenchidae) Affecting Vegetable Crops of Nepal

2016 ◽  
Vol 10 (1) ◽  
pp. 10-14
Author(s):  
Arvind K. Keshari ◽  
Ranjana Gupta
Keyword(s):  
Life Sciences ◽  
Nematode Species ◽  
Parasitic Nematodes ◽  
Kathmandu Valley ◽  
Vegetable Crops ◽  
Plant Parasitic Nematodes ◽  
Morphometric Data ◽  
First Time ◽  
Plant Parasitic

During a survey for plant parasitic nematodes affecting various vegetable crops grown in three hilly districts surrounding Kathmandu Valley, Nepal, five species of order Tylenchidae are reported for the first time from Nepal.The nematode species are Hoplolaimus indicus, Tylenchorhynchus mashhoodi, Helicotylenchus incisus, Microposthonia paraxestis and Hemicriconemoides cocophilus.All the species are illustrated with line diagrams and described with their morphometric data along with localities and host plants.International Journal of Life Sciences 10 (1) : 2016; 10-16

Two new species of Aphelenchoides (Nematoda: Aphelenchida: Aphelenchoidea: Aphelenchidae) from Manipur, India

Biologia ◽  
2012 ◽  
Vol 67 (3) ◽  
Author(s):  
Loukrakpam Bina Chanu ◽  
Naorem Mohilal ◽  
Mohammad Shah
Keyword(s):  
New Species ◽  
Soil Samples ◽  
Cephalic Region ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Lateral Field ◽  
Short Tail ◽  
Tamarind Seed ◽  
Two New Species ◽  
Plant Parasitic

AbstractAnalysis of the soil samples collected from around rhizospheric region of mulberry plants grown in Yurembam Rose Garden, Yurembam, Imphal West, Manipur yielded several soil and plant parasitic nematodes. Among them four species of Aphelenchoides were recorded. Upon detailed study, two species of Aphelenchoides were found to be new to science. Aphelenchoides dhanachandi sp. n. is characterized by ventrally curved body, clearly set off cephalic region and tail ending into a sharp pointed terminus, and stylet slender, 13.6–15.3 (14 ± 0.7) μm long with indistinct basal swellings and tamarind seed-shaped median bulb. Aphelenchoides neoechinocaudatus sp. n. is characterized by straight body with four incisures in the lateral field, flatten cephalic region, slender stylet with indistinct basal swellings, 11.9 μm long, elongated pear-shaped median bulb and short tail with pointed mucro. The two species are illustrated here.

scholarly journals First Report of Subanguina moxae Infecting Mugwort in Yunnan, China

Plant Disease ◽  
2012 ◽  
Vol 96 (8) ◽  
pp. 1232-1232 ◽  
Author(s):  
R. Y. Yao ◽  
X. Q. Hu ◽  
J. P. Xue
Keyword(s):  
Body Length ◽  
Tail Length ◽  
Total Body Length ◽  
Guizhou Province ◽  
Universal Primers ◽  
Parasitic Nematodes ◽  
Its Sequence ◽  
First Report ◽  
Stylet Length ◽  
Total Body

Mugwort is a perennial in the Compositae family distributed throughout Asia and Europe. The leaves are reported to have various pharmaceutical properties, e.g., antibacterial, antiviral, antitussive, and hemostatic properties, and have been used in traditional Chinese medicine for more than 2,000 years. In August 2011, a field of mugwort in Kunming, Yunnan Province, China, exhibited more than 90% incidence of whitish and rounded galls on the leaves. There were approximately 10 galls on each leaf, impacting the quality of the leaves for medicinal use. Parasitic nematodes were found upon dissection of the galls, then eggs, second-stage juveniles (J2), and mature males and females were observed. Through the morphologic observation of juveniles and female and male adults, the parasitic nematode was identified as Subanguina moxae (Yokoo and Choi, 1968) Brzeski, 1981 (3). Key morphological features are as follows: eggs (n = 20) measured 54.0 to 71.4 × 24.1 to 30.0 μm; J2 (n = 20) had the following characteristics: body length 689.3 to 873.2 μm (x = 775.5 μm); stylet length 8.2 to 9.8 μm (x = 8.8 μm); tail length 49.5 to 74.5 μm (x = 60.1 μm); a (total body length/maximum body width) ranged from 28.6 to 38.6 μm (x = 34.1 μm); and c (total body length/the length of the tail) ranged from 11.2 to 16.0 μm (x = 13.0 μm). Females (n = 20) had the following characteristics: body length 1,252.8 to 1,665.2 μm (x = 1,475.7 μm); stylet length 7.2 to 9.2 μm (x = 8.2 μm); V of 88.0 to 92.3 μm (x = 89.6 μm); a ranged from 17.6 to 24.5 μm (x = 21.3 μm); and c ranged from 20.2 to 28.9 μm (x = 22.8 μm). Males (n = 20) had the following characteristics: body length 994.2 to 1,453.6 μm (x = 1,253.2 μm); stylet length 7.5 to 9.9 μm (x= 9.1 μm); tail length 69.2 to 88.1 μm (x = 78.0 μm); spicule length 22.2 to 33.4 μm (x = 29.4 μm); gubernaculum length 10.4 to 14.2 μm (x = 12.2 μm); a ranged from 23.1 to 37.2 μm (x = 29.9 μm); and c ranged from 13.9 to 18.7 μm (x = 16.1 μm). Amplification of the rDNA-internal transcribed spacer (ITS) region and the D2/D3 (1) fragments of the 28S RNA with universal primers rDNA1/rDNA2 and D2A/D3B yielded PCR fragments of 934 bp and 754 bp, respectively. The ITS sequence (JN865234) and D2D3 sequence (JN885540) were submitted to GenBank. The ITS sequence (JN865234) exhibited 99.4% similarity with Mesoanguina moxae (AF396314) (synonym of S. moxae) (4). S. moxae has been identified from the common mugwort in Japan (2) and in China, was reported to infect wheat in Guizhou Province, but to our knowledge, this is the first report of this nematode affecting mugwort in Yunnan, China. References: (1) S. Amiri et al. Eur. J. Plant Pathol. 108:497, 2002. (2) K. Daigo et al. Bull. School Agric. Meiji University. 56:237, 2007. (3) M. R. Siddiqi. Tylenchida: Parasites of Plants and Insects. CABI Publishing, New York, 2000. (4) S. A. Subbotin et al. Mol. Phylogenet. Evol. 30:226, 2004.

scholarly journals Nematodes associated with plant growth inhibition in the Wielkopolska region

2012 ◽  
Vol 52 (4) ◽  
pp. 440-446 ◽  
Author(s):  
Grażyna Winiszewska ◽  
Ewa Dmowska ◽  
Aneta Chałańska ◽  
Renata Dobosz ◽  
Franciszek Kornobis ◽  
...  
Keyword(s):  
Plant Growth ◽  
Growth Inhibition ◽  
Rapid Identification ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Innovative Methods ◽  
Academy Of Sciences ◽  
First Time ◽  
Plant Parasitic ◽  
Plant Growth Inhibition

Abstract The list of species of the plant parasitic nematodes presented in this paper (133 species belonging to 14 families) is based on the results of faunistic research conducted in the Wielkopolska region by Polish nematologists up until the year 2010, and the results obtained from the project “Elaboration of Innovative Methods for Rapid Identification of Nematodes Causing Damage to the Economy” managed by the Museum and Institute of Zoology of the Polish Academy of Sciences. During the two years of the project (2010-2011) we found 21 species of nematodes which had not yet been reported in the list of species from the Wielkopolska region. Two of them were reported for the first time in Poland.

Paratylenchus paraperaticus sp. n. (Tylenchida: Tylenchulidae) found in the rhizosphere of walnut trees in Hamadan province, Iran

Nematology ◽  
2009 ◽  
Vol 11 (5) ◽  
pp. 641-647 ◽  
Author(s):  
Leila Kashi ◽  
Akbar Karegar ◽  
Ahmad Kheiri
Keyword(s):  
Neck Region ◽  
Young Female ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Lateral Field ◽  
Young Females ◽  
Body Cuticle ◽  
Plant Parasitic

Abstract During a survey of plant-parasitic nematodes associated with walnut trees in Hamadan province, west Iran, several species of Longidoridae and infraorder Tylenchomorpha, including Paratylenchus paraperaticus sp. n., were identified. Paratylenchus paraperaticus sp. n. is characterised by its small size (255-385 μm), young female vermiform and ventrally curved, older female obese, swollen in prevulvar region and J- or W-shaped; truncate conical head with distinct and laterally protruding submedian lobes; long and flexible stylet (75.0-96.5 μm); body cuticle with fine and smooth annuli in young females, but in older females ornamented with minute reflective tubercles or irregularities that are confined mostly to the neck region; lateral field with four lines; presence of lateral vulval flaps; rounded to ovoid spermatheca filled with small, rounded sperm; and conical and ventrally curved tail with pointed to finely rounded terminus.

Morphological and molecular diversity of Radopholus on coffee in Vietnam and description of R. daklakensis sp. n. from Robusta coffee

Nematology ◽  
2012 ◽  
Vol 14 (1) ◽  
pp. 65-83 ◽  
Author(s):  
Phap Q. Trinh ◽  
Lieven Waeyenberge ◽  
Chau N. Nguyen ◽  
Maurice Moens
Keyword(s):  
Molecular Diversity ◽  
Tail Length ◽  
Parasitic Nematodes ◽  
Rrna Gene ◽  
28S Rrna ◽  
Plant Parasitic Nematodes ◽  
Robusta Coffee ◽  
Rdna Sequences ◽  
Stylet Length ◽  
A New Species

Four isolates of Radopholus arabocoffeae and one isolate of R. duriophilus were collected during a survey of plant-parasitic nematodes on coffee in Vietnam. Radopholus species only occurred in the Western Highland region. Information on the degree of variability in morphometrics, and morphological and molecular characters amongst and within these species are reported. The survey also yielded a Radopholus isolate collected from Robusta coffee roots and soil in Dak Lak, which is herein described as a new species, R. daklakensis sp. n. Within the genus, R. daklakensis sp. n. is most similar to R. arabocoffeae and R. duriophilus in morphology and morphometrics. It differs from R. arabocoffeae by the stylet knobs always directed posteriorly and the conical tail shape with rounded terminus in females. Radopholus daklakensis sp. n. differs from R. duriophilus by the stylet knobs, which are always directed posteriorly vs rounded, and dorsal knob sometimes projected anteriorly, and sperm rod-shaped vs oval and kidney-shaped. Radopholus daklakensis sp. n. differs from R. similis by the absence of a postrectal intestinal sac, four incisures of the lateral fields terminating far posterior to the position of the phasmid, the bursa in male reaching one-third of tail to half, never reaching tail terminus and smaller stylet length in females. The canonical discriminant analysis separated the Radopholus species by characters such as lip height, stylet length, b, b′, c, V and ratio tail length/stylet length. Phylogenetic analysis of Radopholus species using ITS-rDNA sequences or sequences from the D2-D3 expansion region of the 28S rRNA gene also confirm R. daklakensis sp. n. to be distinct.

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